Method for forming vehicle bogie based on double-sided gear

Abstract

The invention provides a method for forming a vehicle bogie based on double-sided gears, which comprises the following steps that: a walking gear (zxcl) which is arranged on the same truss of walking frame (zxkj) or the same truss of walking guide frame (dxkj) and is positioned on the front surface of a track beam and a stabilizing gear (wdcl) which is positioned on the back surface of the track beam are respectively meshed with a walking tooth groove (zxcc) and a stabilizing tooth groove (wdcc) on the track beam; the upward shearing force Vzp, which is applied by the walking gear (zxcl) and is parallel to the vertical tangential direction of the track beam at the intersection point of the walking gear (zxcl) and the walking tooth groove (zxcc), is applied to the walking gear (zxcl) and is applied by the walking tooth groove (zxcc), and provides the anti-sliding force for the track traffic vehicle to run on the track beam; the moment M formed by the acting force Fz given by the walking tooth groove (zxcc) and borne by the walking gear (zxcl) and the acting force Fw given by the stabilizing tooth groove (wdcc) and borne by the stabilizing gear (wdcl) provides the anti-overturning moment for the rail transit vehicle to run on the rail beam, and therefore the rail transit vehicle can run on the super-large gradient rail beam with the gradient larger than 50 degrees.

Description

Technical Field

[0001] This patent relates to a method for forming a vehicle bogie based on double-sided gears, which is applied to rail transit vehicles and belongs to the field of rail transit. Background Art

[0002] At present, the maximum climbing ability of the rack rail transit vehicle bogie suitable for large slopes is about 47°. The technical principle is to set gears on the bogie and set tooth grooves that mesh with the gears on the track beam. The large mutual meshing force between the gears and the tooth grooves provides the climbing force when the rail transit vehicle climbs a large slope and the braking force when going downhill, so as to achieve large slope climbing of the rail transit vehicle. The climbing ability of the rack rail transit vehicle bogie is much greater than that of the ordinary rail transit vehicle bogie that relies on the friction between the round rubber wheel or round steel wheel and the track beam to provide driving and braking force.

[0003] For example, Chinese Patent 202211165492.0 Straddle-type rack rail monorail beam, support structure and construction method thereof, Chinese Patent 201810300799.4 A mountain cog-type monorail train or track system for slope traction, Chinese Patent 202010465600.0 A straddle-type monorail bogie suitable for large slopes and auxiliary drive method, and Chinese Patent 201810666078.5 Toothed bogie suitable for large-slope rail transportation have announced bogies for rack rail transportation vehicles suitable for large slopes. However, the current rack rail transportation vehicle bogies suitable for large slopes are only equipped with gears on the front or side of the track beam that only provide climbing force when climbing and braking force when going downhill. Therefore, the rack rail transportation vehicle bogies of the current technology have a "overturning effect", that is, as the slope increases, the anti-overturning moment required for the smooth and safe operation of the vehicle increases, while the limit anti-overturning moment provided by the bogie is limited, and the rail transportation vehicle is in danger of overturning when the slope is greater than 50°. That is, the rack rail vehicle bogie of current technology is not suitable for climbing a slope with a very large gradient (greater than 50°), and cannot achieve climbing a vertical slope.

[0004] The principle of the existing technology applicable to the bogie of rack rail transportation vehicles with large slopes is as follows Figure 1 As shown, Figure 1 The bogie in the example is demonstrated with two running gears as an example. Figure 1 The coordinate system shown in the figure has the X direction parallel to the vertical tangent of the track beam at the intersection of the running gear and the track beam, and the Y direction perpendicular to the vertical tangent of the track beam at the intersection of the running gear and the track beam, with a point on one side of the vehicle as the origin; the mass of the vehicle and the bogie is m1, and the deadweight is G1. According to the principle of structural mechanics, the deadweight of the vehicle body and the bogie is translated to the origin of the coordinate system and decomposed into the component force G parallel to the vertical tangent of the track beam at the intersection of the running gear and the track beam p1, the component force G perpendicular to the vertical tangent direction of the track beam at the intersection of the running gear and the track beam c1 and the bending moment is M g1 The reaction force of the tooth groove on the track beam on the running gear is Q, which is decomposed into a component force Q parallel to the vertical tangent direction of the track beam at the intersection of the running gear and the track beam. p and the component force Q perpendicular to the vertical tangent direction of the track beam at the intersection of the running gear and the track beam c ; The acceleration component of the vehicle in the vertical tangent direction of the track beam parallel to the intersection of the running gear and the track beam is a p1 , the acceleration component perpendicular to the vertical tangent direction of the track beam at the intersection of the running gear and the track beam is a c1 ; The output torque of the vehicle drive device acting on the gear is M q ; The distance between the gear and tooth groove action point and the origin of the coordinate system is projected in the direction parallel to the vertical tangent of the track beam at the intersection of the running gear and the track beam as f, and the projection perpendicular to the vertical tangent of the track beam at the intersection of the running gear and the track beam as b. The force mechanism of the bogie is as follows:

[0005] Taking the bogie as the research object and the origin of the coordinate system as the moment center, the equilibrium equation can be obtained:

[0006] (Q p1 +Q p2 )-G p1 =m1a p1 (1)

[0007] (Q c1 +Q c2 )-G c1 =m1a c1 (2)

[0008] Q c2 f2+M q1 +M q2 +M g1 =Q p1 b1+Q p2 b2+Q c1 f1 (3)

[0009] The overturning moment on the bogie is:

[0010] M f =Q p1 b1+Q p2 b2+Q c1 f1 (4)

[0011] The anti-overturning moment of the bogie is:

[0012] M k =Q c2 f2+Mq1 +M q2 +M g1 (5)

[0013] According to formula (1) to formula (5), when a rail transit vehicle is climbing a small slope, the anti-overturning moment M of the bogie is k Capable and overturning moment M f Maintain balance. As the slope increases, the weight of the car body and bogie is parallel to the vertical tangent direction of the track beam at the intersection of the running gear and the track beam. p1 The component force G perpendicular to the vertical tangent direction of the track beam at the intersection of the running gear and the track beam is c1 Continuously decreasing; due to G p1 The increase in the required reaction force Q p The output torque M of the drive equipment is continuously increasing. q The force Q of the tooth groove on the gear perpendicular to the vertical tangent of the track beam at the intersection of the running gear and the track beam is c Continuously increasing, resulting in overturning moment M f Increase. When the slope of the rack rail vehicle bogie is greater than about 50°, the anti-overturning moment M k Not enough to resist the overturning moment M f Therefore, the current technology is suitable for geared vehicle bogies with large slopes, but it cannot achieve climbing of super-large slopes with a slope greater than 50°, let alone climbing of vertical slopes. Summary of the invention

[0014] The content of the present invention is used to introduce its concepts in a brief form, and these concepts will be described in detail in the following specific implementation. The content of the present disclosure is not only used to identify the key features or essential features of the technical solution for protection, nor is it only used to limit the scope of the technical solution for protection.

[0015] Some embodiments of the present invention provide a method for forming a vehicle bogie based on double-sided gears to solve the technical problems mentioned in the above background technology section.

[0016] Some embodiments of the present invention provide a method for forming a vehicle bogie based on double-sided gears, wherein the bogie comprises a running frame (zxkj), a guide frame (dxkj), a running guide frame (zxdx), a running gear (zxcl), a stabilizing gear (wdcl), a guide wheel (dxl) and a traction shaft (qyz), wherein the running frame (zxkj) and the running guide frame (zxdx) are connected via a traction shaft (qyz) to form the bogie, or the running frame (zxkj) and the guide frame (dxkj) are connected via a traction shaft (qyz) to form the bogie; a running gear located on the front side of a track beam is arranged on the running frame (zxkj) and the running guide frame (zxdx) (zxcl) and the stabilizing gear (wdcl) located on the back of the track beam; the upward shear force Vzp parallel to the vertical tangent direction of the track beam at the intersection of the running gear (zxcl) and the running tooth groove (zxcc) given by the running gear (zxcl) provides the anti-slip force for the rail transit vehicle running on the track beam; the torque M formed by the force Fz given by the running tooth groove (zxcc) borne by the running gear (zxcl) and the force Fw given by the stabilizing gear (wdcl) provided by the stabilizing gear (wdcl) provides the anti-overturning torque for the rail transit vehicle running on the track beam, thereby realizing the operation of the rail transit vehicle on the track beam with a super-large slope.

[0017] Optionally, m running gears (zxcl) and m stabilizing gears (wdcl) are arranged on the running frame (zxkj), and m is an even number.

[0018] Optionally, a rubber running wheels (xjzxl) and a stable rubber gears (xjwdl) are arranged on the running frame (zxkj), and a is an even number.

[0019] Optionally, the i-th running gear (zxcl) and the i-th stabilizing gear (wdcl) installed on the same running frame (zxkj) are coplanar, i=1~m, m is an even number.

[0020] Optionally, the i-th rubber running gear (xjzxl) and the i-th rubber stabilizing wheel (xjwdl) installed on the same running frame (zxkj) are coplanar, i=1~a, a is an even number.

[0021] Optionally, guide wheels (dxl) are arranged on the stabilizing arms (wdb) on the left and right sides of the running frame (zxkj) to form a running guide frame (zxdx).

[0022] Optionally, the running frame of the bogie adopts an "m+n" connection combination method, where m∈Z, n∈Z, and Z is a non-zero natural number.

[0023] Optionally, the front traction axle and the rear traction axle connected to the guide frame (dxkj) inside the bogie and the adjacent running frame (zxkj), one traction axle is a rigid traction axle (gqyz), and the other traction axle is a universal joint traction axle (wqyz); or both the front traction axle and the rear traction axle are rigid traction axles (gqyz).

[0024] Optionally, the front traction axle and the rear traction axle connected to the running guide frame (zxdx) inside the bogie and the adjacent running frame (zxkj), one traction axle is a rigid traction axle (gqyz), and the other traction axle is a universal joint traction axle (wqyz); or both the front traction axle and the rear traction axle are rigid traction axles (gqyz).

[0025] Optionally, the running guide frames (zxdx) on both sides of the bogie are connected to adjacent running frames (zxkj) through a rigid traction shaft (gqyz).

[0026] Optionally, the traction shaft connecting the guide frames (dxkj) on both sides of the bogie and the adjacent running frames (zxkj) is a rigid traction shaft (gqyz).

[0027] Optionally, s guide wheels (zddxl) are provided on each walking guide frame (zxdx), and s is an even number.

[0028] The above embodiments of the present invention have the following beneficial effects:

[0029] The geared vehicle bogies of the prior art suitable for large slopes can only achieve climbing with a maximum slope of about 47°. As the slope increases, the vehicle is in danger of overturning because the bogies of the prior art cannot provide a sufficiently large anti-overturning moment to resist the overturning of the vehicle. It is impossible to achieve climbing with a super-large slope of more than 50°, let alone climbing with a vertical slope of 90°. This patent proposes a method for forming a vehicle bogie based on double-sided gears, in which a running gear zxcl located on the front of the track beam and a stabilizing gear wdcl located on the back of the track beam are arranged on the running frame zxkj and the running guide frame zxdx. The running gear zxcl is borne by the running tooth groove zxcc, which gives an upward shear force V in the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc. zp Provides anti-slip force for rail transit vehicles running on track beams; the force F given by the running tooth groove zxcc borne by the running gear zxcl z The force F exerted by the stable tooth space wdcc on the stable gear wdcl wThe torque M formed can provide a sufficiently large anti-overturning moment to resist the overturning of the vehicle, so that the vehicle can run on a track beam with a super-large slope greater than 50°. On a small slope line or a non-slope line, the vehicle can only use rubber running wheels for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation of the present invention or the technical solution in the prior art, the following briefly introduces the drawings required for use in the specific implementation or the prior art description. Obviously, the drawings described below are some implementations of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 It is the existing technical schematic diagram;

[0032] Figure 2 A schematic diagram of an embodiment of a method for forming a vehicle bogie based on double-sided gears according to the present invention;

[0033] Figure 3 A front view of an embodiment of a method for forming a vehicle bogie based on double-sided gears according to the present invention;

[0034] Figure 4 A top view of an embodiment of a method for forming a vehicle bogie based on double-sided gears according to the present invention;

[0035] Figure 5 A side view of an embodiment of a method for forming a vehicle bogie based on double-sided gears according to the present invention;

[0036] Figure 6 A force principle diagram of a method for forming a vehicle bogie based on double-sided gears according to the present invention;

[0037] Figure 7 It is a front view of a 2-wheel gear transportation vehicle bogie of the present invention in the form of an anti-overturning "1+1" combination using a guide frame;

[0038] Figure 8 A side view of a 2-wheel geared transportation vehicle bogie in the form of a rollover-resistant "1+1" combination using a guide frame according to the present invention;

[0039] Fig. 9 A top view of a two-wheel gear transportation vehicle bogie of the present invention in a "1+1" combination form with an anti-overturning guide frame;

[0040] Fig.10 A schematic diagram of a two-wheel gear transportation vehicle bogie of the present invention using a guide frame and having an anti-overturning "1+1" combination form;

[0041] Fig.11 It is a front view of a 4-wheel gear transportation vehicle bogie of the present invention which is anti-overturning "1+1" combination form and uses a running guide frame;

[0042] Fig.12 A side view of a 4-wheel gear transportation vehicle bogie in the form of an anti-overturning "1+1" combination using a running guide frame of the present invention;

[0043] Fig.13 A top view of a 4-wheel gear transportation vehicle bogie in the form of an anti-overturning "1+1" combination using a running guide frame of the present invention;

[0044] Fig.14 A schematic diagram of a 4-wheel gear transportation vehicle bogie in the form of an anti-overturning "1+1" combination using a running guide frame of the present invention;

[0045] Fig.15 It is a front view of a two-wheel gear transportation vehicle bogie of the present invention which uses a guide frame and a running guide frame and has an anti-overturning "1+1" combination form;

[0046] Fig.16 A side view of a two-wheel geared transportation vehicle bogie of the present invention using a guide frame and a running guide frame in an anti-overturning "1+1" combination form;

[0047] Fig.17 A top view of a two-wheel gear transportation vehicle bogie of the present invention using a guide frame and a running guide frame in an anti-overturning "1+1" combination form;

[0048] Fig.18 A schematic diagram of a two-wheel gear transportation vehicle bogie of the present invention using a guide frame and a running guide frame in an anti-overturning "1+1" combination form;

[0049] Fig.19 A schematic diagram of a rail transit vehicle bogie with two gear wheels and two rubber wheels in an anti-overturning "1+1" combination form according to the present invention;

[0050] Fig. 20 A top view of a rail transit vehicle bogie with two gear wheels and two rubber wheels in an anti-overturning "1+1" combination form according to the present invention;

[0051] Fig.21 The present invention is a front view of a rail transit vehicle bogie with two gear wheels and two rubber wheels in an anti-overturning "1+1" combination form. DETAILED DESCRIPTION

[0052] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] In the description of the present invention, 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" 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.

[0054] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, 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 connection of two components. 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.

[0055] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0056] In response to the above problems, the inventor combined the design principles of the bogie with the requirements of climbing ultra-large slopes, conducted sufficient analysis and demonstration, and finally proposed this patent.

[0057] The professional terms involved in this patent are explained as follows:

[0058] Running frame: A metal frame in the bogie structure used to bear and transfer the weight of various parts above the frame, on which the running gear and stabilizing gear are installed.

[0059] Guide frame: The metal frame on which the guide wheels are mounted in the bogie structure, ensuring that the running gear and the stabilizing gear move on the running gear grooves and the stabilizing gear grooves, and allowing the vehicle to pass smoothly through curves.

[0060] Walking guide frame: It is composed of a walking frame, stabilizing arms, walking wheels and stabilizing wheels. The walking frame is used as the basic structure, and the guide wheels are symmetrically arranged on the stabilizing arms on the left and right sides of the walking frame to form a metal frame that has the functions of both a walking frame and a stabilizing frame.

[0061] Traction shaft: A rod-shaped metal component that connects the running frame to the running frame, the running frame to the guide frame, or the running frame to the running guide frame.

[0062] Universal joint traction shaft: A traction shaft with a universal joint that can realize the rotation of both ends of the traction shaft at any relative angle is called a universal joint traction shaft.

[0063] Rigid traction shaft: A traction shaft with both ends relatively fixed is called a rigid traction shaft.

[0064] The left side of the track beam: Standing at a small mileage and looking towards the large mileage, the left-hand side is called the left side of the track beam.

[0065] The right side of the track beam: Standing at a small mileage and looking towards a large mileage, the right-hand side is called the right side of the track beam.

[0066] The left side of the running frame: Standing at the small mileage and looking towards the large mileage, the left hand side is called the left side of the running frame.

[0067] The right side of the running frame: Standing at the small mileage and looking towards the large mileage, the right-hand side is called the right side of the running frame.

[0068] The front side of the track beam: The side of the track beam facing the rail transit vehicle is called the front side of the track beam.

[0069] The back side of the track beam: The side of the track beam facing away from the rail transit vehicle is called the back side of the track beam.

[0070] Vertical tangent of track beam: refers to the tangent of the track beam in the vertical plane; when the track beam is a straight line, the longitudinal axis of the track beam is the vertical tangent of the track beam; when the track beam is a curve, the tangent of the vertical curve of the track beam is the vertical tangent of the track beam.

[0071] Front side of guide frame: The vehicle travel direction of the guide frame is called the front side of the guide frame.

[0072] Rear side of the guide frame: The direction opposite to the vehicle traveling direction of the guide frame is called the rear side of the guide frame.

[0073] The i-th running gear on the running frame: with the left side of the track beam as the starting direction and the right side of the track beam as the end direction, the first running gear on the running frame is the first running gear, the second running gear is the second running gear, and the i-th running gear is the i-th running gear.

[0074] The i-th stable gear on the walking frame: with the left side of the track beam as the starting direction and the right side of the track beam as the end direction, the first stable gear on the walking frame is the first stable gear, the second stable gear is the second stable gear, and the i-th stable gear is the i-th stable gear.

[0075] The "m+n" connection combination of the running frames: m represents a group of m adjacent running frames connected by rigid traction shafts, n represents another group of n adjacent running frames connected by rigid traction shafts, and the "+" sign represents that the above-mentioned m continuous running frames and n continuous running frames are connected by universal joint traction shafts; that is, the "m+n" connection combination of the running frames represents a connection combination of a group of m running frames connected by rigid traction shafts and another group of n adjacent running frames connected by rigid traction shafts, which are connected by universal joint traction shafts, m∈Z, n∈Z, and Z is a natural number.

[0076] Rack rail transit: Gears are set on the bogies of rail transit vehicles, racks are set on the track beams, and the running structure is composed of steel wheels, steel rails, single-sided gears and racks. The form of rail transit that uses this running structure is called rack rail transit.

[0077] The working principle of a method for forming a vehicle bogie based on double-sided gears will be further described below in conjunction with the accompanying drawings. Before that, it should be pointed out that the embodiments described in the accompanying drawings are only used as demonstrations to illustrate the principles and cannot be understood as limitations to the present invention.

[0078] As attached Figure 2 to Figure 5 As shown, the method for forming a vehicle bogie based on double-sided gears includes n running frames zxkj, n≥1, namely running frame zxkj1, running frame zxkj2, ..., running frame zxkjn; p guide frames dxkj, p≥0, namely guide frame dxkj1, guide frame dxkj2, ..., guide frame dxkja, q running guide frames zxdx, q≥0, namely running guide frame zxdx1, running guide frame zxdx2, ..., running guide frame zxdxb; the running frames and the running frames, the running frames and the guide frames, and the running frames and the running guide frames are connected by traction shafts qyz, and the traction shafts qyz are divided into rigid traction shafts gqyz and universal joint traction shafts wqyz; m running gears zxcl and m stabilizing gears wdcl are arranged on each running frame zxkj, and m is an even number. Figure 2 to Figure 5 In the description, n=4, m=2, p=2, q=1 is taken as an example.

[0079] Figure 2 to Figure 5As shown, structurally, the bogie is provided with n running frames zxkj, and the running frames zxkj include two stabilizing arms wdb, a differential csq, a running gear zxcl, a stabilizing gear wdcl and a connecting shaft ljz. Each running frame is provided with m running gears zxcl located on the front of the track beam and m stabilizing gears wdcl located on the back of the track beam, where m is an even number, including running gears zxcl1, running gears zxcl2, ..., running gears zxcl (n×m), stabilizing gears wdcl1, stabilizing gears wdcl2, ..., stabilizing gears wdcl (n×m), the running gear zxcl is provided on the connecting shaft ljz, and the stabilizing gear wdcl is provided on the stabilizing arm wdb. The running gear zxcl is meshed with the running tooth groove zxcc on the front of the track beam gdl, and the stabilizing gear wdcl is meshed with the stabilizing tooth groove wdcc located on the back of the track beam gdl. The i-th running gear zxcl and the i-th stabilizing gear wdcl installed on the same running frame zxkj are coplanar, i=1~m, m is an even number. The i-th running gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the end direction. The first running gear on the running frame is the first running gear, the second running gear is the second running gear, and the i-th running gear is the i-th running gear. The i-th stabilizing gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the end direction. The first stabilizing gear on the running frame is the first stabilizing gear, the second stabilizing gear is the second stabilizing gear, and the i-th stabilizing gear is the i-th stabilizing gear. The guide wheels dxl are set on the stabilizing arms wdb on the left and right sides of the running frame zxkj to form the running guide frame zxdx.

[0080] The bogie is provided with p guide frames dxkj and q running guide frames zxdx, 0≤p, 0≤q, to ​​improve the guiding ability of the bogie. The guide frame dxkj includes a connecting shaft dljz, a guide arm dxb and a guide wheel dxl, such as Figure 2 to Figure 5 The walking guide frame zxdx includes two stabilizing arms zdwdb, a differential zdcsq, a guide wheel zddxl, a walking gear zdzxcl, a stabilizing gear zdwdcl and a connecting shaft zdljz, as shown in FIG. Figure 2 to Figure 5 As shown. The guide frame dxkj is arranged inside the bogie and at both ends of the bogie, or the running guide frame zxdx is arranged inside the bogie and at both ends of the bogie. The two ends of the bogie are the guide frame dxkj1 and the guide frame dxkjp, or the two ends of the bogie are the running guide frame zxdx1 and the running guide frame zxdxq. The minimum radius of the bogie running track beam is R, unit: m, the maximum design running speed of the bogie at the minimum radius of the track beam is V, unit: km / h, and the adjacent guide wheels dxl along the longitudinal direction of the track beam are i With guide wheel dxli+1 The distance between is L, unit: m, take The K constant parameter has a value range of Each guide frame dxkj is provided with two guide wheels dxl, and the guide wheels dxl are round rubber wheels. i With adjacent running frame zxkj i+1The running frames, the running frames and the adjacent guide frames, and the running frames and the adjacent running guide frames are connected by traction shafts qyz, and the traction shafts are rigid traction shafts gqyz or universal joint traction shafts wqyz. The connection combination between the running frames zxkj is the "m+n" connection combination. The "m+n" connection combination of the running frames: m represents a group of m adjacent running frames connected by rigid traction shafts, n represents another group of n adjacent running frames connected by rigid traction shafts, and the "+" sign represents the connection by universal joint traction shafts; that is, the "m+n" connection combination of the running frames represents a group of m running frames connected by rigid traction shafts and another group of n adjacent running frames connected by rigid traction shafts connected by universal joint traction shafts, m∈Z, n∈Z, and Z is a natural number. Such as the "1+1" connection combination, or the "3+3" connection combination. The "1+1" connection combination means that the first "1" represents 1 running frame, the second "1" represents 1 running frame, and the "+" sign represents the connection with a universal joint traction shaft; that is, the "1+1" connection combination of the running frame indicates that the running frame and the adjacent running frames are all connected by universal joint traction shafts. The "3+3" connection combination means that the first "3" represents the first group of 3 adjacent running frames connected by two rigid traction shafts, the second "3" represents the second group of 3 adjacent running frames connected by two rigid traction shafts, and the "+" sign represents the connection with a universal joint traction shaft; that is, the "3+3" connection combination of the running frame indicates that the 3 running frames connected by the first group of rigid traction shafts and the 3 running frames connected by the second group of rigid traction shafts are connected by universal joint traction shafts. The guide frame dxkj1 and the guide frame dxkjp or the running guide frame zxdx1 and the running guide frame zxdxq arranged at both ends of the bogie are connected with the adjacent running frame zxkj1 and the running frame zxkjn by a rigid traction shaft; the front traction shaft and the rear traction shaft connected with the guide frame dxkj arranged inside the bogie and the adjacent running frame zxkj, either side of the traction shaft is a rigid traction shaft, and the other side of the traction shaft is a universal joint traction shaft; or the front traction shaft and the rear traction shaft are both rigid traction shafts; the front traction shaft and the rear traction shaft connected with the running guide frame zxdx arranged inside the bogie and the adjacent running frame zxkj, either side of the traction shaft is a rigid traction shaft, and the other side of the traction shaft is a universal joint traction shaft; or the front traction shaft and the rear traction shaft are both rigid traction shafts.

[0081] Establish as Figure 6The coordinate system shown in the figure has the X direction parallel to the vertical tangent of the track beam at the intersection of the running gear and the track beam, and the Y direction perpendicular to the vertical tangent of the track beam at the intersection of the running gear and the track beam, with a certain point on one side of the vehicle as the origin. In terms of force and function, the mass of the vehicle and the bogie is m2, and the deadweight is G2. The component force of the deadweight G2 along the vertical tangent of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc is G c2 The component force parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc is G p2 According to the principle of structural mechanics, the bending moment generated by translating the deadweight of the vehicle and bogie to the origin of the coordinate system is M g2 The acceleration of the vehicle parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc is a p2 , the acceleration in the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc is a c2 The running gear rotates under the driving or braking of the driving brake device, and the running gear transmits the torque to the running tooth slot zxcc located on the front of the track beam. The running tooth slot zxcc reacts to the running gear. The force of the running tooth slot zxcc reacting to the i-th running gear can be decomposed into a component force P perpendicular to the vertical tangent direction of the track beam at the intersection of the running gear and the running tooth slot zxcc. ci , and the component force P parallel to the vertical tangent direction of the track beam at the intersection of the running gear and the running tooth groove zxcc pi The force of the stable tooth groove wdcc acting on the i-th stable gear is decomposed into the component force W perpendicular to the vertical tangent direction of the track beam at the intersection of the stable gear and the stable tooth groove wdcc ci , and the component force W parallel to the vertical tangent direction of the track beam at the intersection of the stable gear and the stable tooth groove wdcc pi The projection of the vector whose coordinate origin points to the action point between the ith running gear and the running tooth groove zxcc in the vertical tangent direction of the track beam parallel to the intersection of the running gear zxcl and the running tooth groove zxcc is c i , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative; the projection of the vector from the origin of the coordinate to the action point of the ith running gear and the running tooth groove zxcc in the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc is h i , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative. The projection of the vector from the origin of the coordinate system to the action point of the i-th stable gear and the stable tooth groove wdcc in the direction parallel to the vertical tangent of the track beam at the intersection of the stable gear and the stable tooth groove wdcc is j i, pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative; the projection of the vector from the origin of the coordinate system to the point of action of the i-th stable gear wdcl and the stable tooth groove wdcc in the vertical tangent direction of the track beam at the intersection of the stable gear and the stable tooth groove wdcc is k i , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative. The force mechanism of a gear vehicle bogie suitable for super-large climbing described in this patent is as follows:

[0082] 1) Rack rail vehicles climbing a slope

[0083] When a rack rail vehicle climbs a slope, the running gear rotates under the drive of the driving brake device.

[0084] Loads on rack rail vehicles:

[0085] (1) The upward shear force V parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc z :V z =P p1 +P p2 +...+P pi +...+P pn .

[0086] (2) The downward sliding force F parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc h :F h =G p2 +W p1 +W p2 +...+W pi +...+W pn .

[0087] (3) Among the n running frames, the running frames located on the negative side of the x-axis are numbered 1 to s, and the running frames located on the positive side of the x-axis are numbered s+1 to n. With the origin of the coordinate system as the moment center, the bending moment they bear is:

[0088] Overturning moment M f2 :

[0089] Anti-overturning moment M k2 :

[0090] According to Newton's second law:

[0091] (P p1 +P p2 +...+P pi +...+P pn )-G p2 -(Wp1 +W p2 +...+W pi +...+W pn )=m2a p2 ;

[0092] (P c1 +P c2 +...+P ci +...+P cn )-G c2 -(W c1 +W c2 +...+W ci +...+W cn )=m2a c2 .

[0093] The upward driving force V is parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc z ≥ The downward sliding force F parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc h When the rail transit vehicle is climbing, the running gear zxcl is located on the front of the track beam, and the stabilizing gear wdcl is located on the back of the track beam. The running gear zxcl is subjected to the upward shear force V in the direction of the vertical tangent of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc. q Provides anti-slip force for rail transit vehicles running on track beams; the torque M formed by the force F given by the running tooth groove zxcc borne by the running gear zxcl and the force W given by the stable tooth groove wdcc borne by the stable gear wdcl k2 Provide a sufficiently large ultimate anti-overturning moment for rack rail vehicles running on the track beam, so that the anti-overturning moment M k2 Always equal to the overturning moment M f2 , thereby enabling rail transit vehicles to climb ultra-large slopes.

[0094] 2) Rack rail traffic vehicle is stationary

[0095] The upward driving force V is parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc z It is equal to the downward sliding force F parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc h The force F given by the running tooth groove zxcc borne by the running gear zxcl and the force W given by the stable tooth groove wdcc borne by the stable gear wdcl form an anti-overturning moment M k2 , anti-overturning moment M k2 Equal to the overturning moment M f2, at this time, the rack rail transit vehicle is in a stationary parking state.

[0096] 3) Rack rail vehicles going downhill

[0097] When the rack rail vehicle goes downhill, the running gear zxcl rotates under the braking of the driving brake device.

[0098] Loads on rack rail vehicles:

[0099] (1) The upward braking force F parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc z :F z =P p1 +P p2 +...+P pi +...+P pn .

[0100] (2) The downward sliding force F parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc h :F h =G p2 +W p1 +W p2 +...+W pi +...+W pn .

[0101] According to Newton's second law:

[0102] (P p1 +P p2 +...+P pi +...+P pn )-G p2 -(W p1 +W p2 +...+W pi +...+W pn )=m2a p2 ;

[0103] (P c1 +P c2 +...+P ci +...+P cn )-G c2 -(W c1 +W c2 +...+W ci +...+W cn )=m2a c2 .

[0104] (3) Among the n running frames, the running frames located on the negative side of the x-axis are numbered 1 to s, and the running frames located on the positive side of the x-axis are numbered s+1 to n. With the origin of the coordinate system as the moment center, the bending moment they bear is:

[0105] Overturning moment M f2 :

[0106] Anti-overturning moment M k2 :

[0107] The upward braking force F is parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc z Approximately equal to the downward sliding force F parallel to the vertical tangent direction of the track beam at the intersection of the running gear zxcl and the running tooth groove zxcc h The running gear zxcl is located on the front of the track beam, and the stabilizing gear wdcl is located on the back of the track beam. The torque M is formed by the force F given by the running tooth groove zxcc borne by the running gear zxcl and the force W given by the stabilizing tooth groove wdcc borne by the stabilizing gear wdcl. k2 Provide a sufficiently large ultimate anti-overturning moment for rail transit vehicles running on track beams, so that the anti-overturning moment M k2 Always equal to the overturning moment M f2 , thus enabling rack rail vehicles to go downhill on extremely large slopes.

[0108] In order to better integrate with rail transit vehicles using rubber tires, the vehicle can still use rubber tires to run in the flat or gentle slope stage. The bogie can be set in a form of coordinated work between rubber tires and gears, that is, a rubber running wheels xjzxl and a stable rubber gear xjwdl are set on the running frame zxkj, and a is an even number.

[0109] Embodiment 1: A 2-wheel geared transportation vehicle bogie in the form of an anti-overturning "1+1" combination using a guide frame.

[0110] During design, when the minimum turning radius of the track beam is small, it is recommended that: when the minimum turning radius is ≤150m, the "m+n" combination of the running frame should preferably use the combination of m≤3 and n≤3. The reason is that the "m+n" combination bogie with m≤3 and n≤3 has better steering ability. When the minimum turning radius of the track beam is large, it is recommended that: when the minimum turning radius is >150m, the "m+n" combination of the running frame should preferably use the combination of m>3 and n>3. The minimum radius of the designed running track beam of the bogie described in this embodiment is about 100m, and the running frame adopts a "1+1" combination, that is, the running frames are connected by universal joint traction shafts, which has better steering ability. During design, when the design axle weight of the bogie is small, it is recommended that: when the design axle weight is ≤80kN, because the design axle weight of each running frame is small, each running gear and stabilizing gear is less stressed and less worn, and a 2-wheel gear transportation vehicle bogie is preferred. As described in this embodiment, the load borne by each running frame of the bogie is about 70kN.

[0111] Combination Figure 7 to Figure 10 A 2-wheel gear vehicle bogie with a "1+1" combination form of anti-overturning using a guide frame based on this patent is demonstrated. The 2-wheel gear vehicle bogie with a "1+1" combination form of anti-overturning using a guide frame includes 4 running frames zxkj -1 , that is, the running frame zxkj1 -1 , Traveling frame zxkj2 -1 , Traveling frame zxkj3 -1 , Traveling frame zxkj4 -1 ; 2 guide frames dxkj -1 , that is, the guide frame dxkj1 -1 , guide frame dxkj2 -1 ; Each guide frame dxkj -1 Set 2 guide wheels dxl -1 , a total of 4 guide wheels dxl -1 , that is, guide wheel dxl -1 、Guide wheel dxl2 -1 、Guide wheel dxl3 -1 、Guide wheel dxl4 -1 ; Between the walking frames and the walking frames, and between the walking frames and the guide frames, there are traction shafts qyz -1 Connection, traction shaft qyz -1 Including rigid traction shaft gqyz -1 And universal joint traction shaft wqyz -1 , that is, rigid traction axis gqyz1 -1 , Rigid traction shaft gqyz2 -1、Universal joint traction shaft wqyz1 -1 , Universal joint traction shaft wqyz2 -1 And universal joint traction shaft wqyz3 -1 The "2 wheels" in the anti-overturning "1+1" combination of two-wheel geared vehicle bogies refer to the running frame of each frame. -1 The two running gears zxcl are set on -1 and 2 stabilizing gears wdcl -1 This bogie has a total of 8 running gears zxcl -1 and 8 stabilizing gears wdcl -1 .

[0112] like Figure 7 to Figure 10 As shown, structurally, the bogie is equipped with 4 running frames zxkj -1 , running frame zxkj -1 Including 2 stabilizing arms wdb -1 、Differential csq -1 , running gear zxcl -1 , stable gear wdcl -1 and connecting shaft ljz -1 . Each running frame zxkj -1 Set 2 running gears zxcl -1 and 2 stabilizing gears wdcl -1 , running gear zxcl -1 Set on the connecting shaft ljz -1 Upper, stable gear wdcl -1 Set on the stabilizing arm wdb -1 On top, one of the running gears is zxcl -1 and 1 stabilizing gear wdcl -1 Located in the running frame zxkj -1 Differential csq -1 On the left side, another running gear zxcl -1 And another stabilizing gear wdcl -1 Located in the running frame zxkj -1 Differential csq -1 On the right side, the running frame zxkj -1 It is a bilaterally symmetrical structure. Each running frame zxkj -1 The two running gears zxcl are located on the front of the track beam -1 With track beam gdl -1 2 running teeth on the upper side zxcc -1 Meshing, located on the track beam gdl -1 2 stabilizing gears wdcl on the back -1 2 stabilizing tooth grooves wdcc on the back of the track beam-1 Meshing. The i-th running gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first running gear on the running frame is the first running gear, and the second running gear is the second running gear. The i-th stabilizing gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first stabilizing gear on the running frame is the first stabilizing gear, and the second stabilizing gear is the second stabilizing gear. Installed on the same running frame zxkj -1 The first running gear on zxcl -1 and the first stabilizing gear wdcl -1 Coplanar, second running gear zxcl -1 and the second stabilizing gear wdcl -1 Coplanar. The bogie is equipped with two guide frames dxkj -1 , that is, the guide frame dxkj1 -1 and guide frame dxkj2 -1 , respectively set at both ends of the bogie. Guide frame dxkj -1 Including connecting shaft dljz -1 、Guide arm dxb -1 and guide wheel dxl -1 Each guide frame dxkj -1 2 guide wheels dxl are set on -1 , guide wheel dxl -1 It is a round rubber wheel. The traction shaft qyz is used between the walking frame and the adjacent walking frame, and between the walking frame and the adjacent guide frame. -1 Connection, traction shaft qyz -1 Set on the left and right symmetrical axes of the bogie, the traction shaft is a rigid traction shaft gqyz -1 , or universal joint traction shaft wqyz -1 . Bogie running frame zxkj -1 The connection combination between them adopts the "1+1" connection combination. The first "1" represents one running frame, the second "1" represents one running frame, and the "+" sign represents the universal joint traction shaft connection, that is, the "1+1" connection combination of the running frame means that the running frame and the adjacent running frame are connected by a universal joint traction shaft, that is, the running frame zxkj1 -1 And running frame zxkj2 -1 Through the universal joint traction shaft wqyz1 -1 Connection, running frame zxkj2 -1 And running frame zxkj3 -1 Through the universal joint traction shaft wqyz2 -1 Connection, running frame zxkj3-1 And running frame zxkj4 -1 Through the universal joint traction shaft wqyz3 -1 Connection. The guide frame dxkj1 is set at both ends of the bogie -1 and guide frame dxkj2 -1 With adjacent running frame zxkj1 -1 And running frame zxkj4 -1 A rigid traction shaft is used to connect the guide frame dxkj1 -1 And running frame zxkj1 -1 Rigid traction shaft Rigid traction shaft gqyz1 -1 Connection, guide frame dxkj2 -1 And running frame zxkj4 -1 Rigid traction shaft Rigid traction shaft gqyz2 -1 connect.

[0113] Stabilizer arm wdb included in the bogie -1 、Differential csq -1 , running gear zxcl -1 , stable gear wdcl -1 , running frame zxkj -1 The connecting shaft ljz -1 , guide frame dxkj -1 The connecting shaft dljz -1 、Guide arm dxb -1 and guide wheel dxl -1 And traction shaft qyz -1The design and relevant regulations refer to the "Power Car-Bogie and Running Gear-Frame Structure Strength Test", "Locomotive and Rolling Stock Bogie Train Bogie GB / T 25024-2019", "Locomotive and Rolling Stock Strength Design and Test Identification Specification Bogie Part 1: Bogie Frame TB / T 3549.1-2019", "Technical Conditions for Metro and Light Rail Vehicle Bogies CJ / T365-2011", "Cargo Bogie GTCC-004-2010", "High-strength Steel Structure Design Standard JGJ / T483-2020" and other relevant specifications. The design and relevant regulations of running gears, stabilizing gears and tooth grooves refer to "Calculation and Inspection Methods for Torque, Backlash and Transmission Error of Precision Gear Drive Chain CB* / Z 178-1980", "Technical Conditions for Precision Forged Straight Bevel Gears for Vehicle Drive CGMA 3001.E01-2009", "Calculation Methods for Load Capacity of Bevel Gears Part 1: Overview and General Influence Factors GB / T 10062.1-2003", "Calculation Methods for Load Capacity of Bevel Gears Part 2: Calculation of Tooth Surface Contact Fatigue (Pitting) Strength GB / T10062.2-2003", "Calculation Methods for Load Capacity of Bevel Gears Part 3: Calculation of Tooth Root Bending Strength GB / T 10062.3-2003", "Simplified Calculation Methods for Load Capacity of General Mechanical Involute Cylindrical Gears GB / T10063-1998", "Precision System for Cylindrical Gears Part 1: Definition and Allowable Value of Tooth Surface Deviation on the Same Side of Tooth GB / T 10095.1-2008", "Cylindrical gear precision system Part 2: Definition and allowable values ​​of radial combined deviation and radial runout GB / T 10095.2-2008", "Basic tooth profile of small module bevel gears GB / T10224-1998", "Cylindrical gear module for general machinery and heavy machinery GB / T 1357-2008" and other relevant specifications.

[0114] The bogie has the ability to carry and transmit traction. The main components of the bogie should ensure that the car body and load are transmitted to the rack as evenly as possible through each wheel set, and transmit traction. The bogie components should have sufficient strength and appropriate rigidity. The static strength and dynamic strength of the key components of the bogie should meet the requirements of relevant international standards.

[0115] The dimensions of each section of the running frame, guide frame, and traction axle are mainly determined based on the load-bearing form and load size of the bogie, strength and stiffness conditions, and with reference to the structure of similar frames, problems often exposed during maintenance and use, and related calculations. The steel plate profiled welded structure should try to avoid the concentration of welds and the intersection of multiple welds in welding to reduce the internal stress at the intersection. The running frame, guide frame, and traction axle are designed with fully enclosed sections.

[0116] The load state of the connecting shaft of the running frame during the operation of the vehicle is very complex, including traction, braking force, shaft pressure and impact load from the line, etc. The rolling radius of the two wheels of the same gear wheel set may be different, or the length of the curved track may be different, which may also cause the wheel set to rotate asynchronously. Therefore, a differential is set at the center of the connecting shaft.

[0117] When the gear-rack drive system adopts track circuit, the rack structure design should meet the relevant technical requirements of track circuit. When the gears are meshing, without considering the friction force, the total force F acting on the gear teeth is n Along the meshing line, the normal force F n On the pitch circle, it is decomposed into the tangential force F in the tangent direction of the pitch circle. t and the radial force F pointing to the wheel center along the radial direction r .

[0118] Tangential force:

[0119] Radial force: F r =F t tgα(N);

[0120] Normal force:

[0121] Wherein, d1 is the pitch circle diameter, mm, and in this embodiment, it is 800 mm;

[0122] α——pitch circle pressure angle, standard gear α=20°;

[0123] T1——Gear torque.

[0124] According to the power P1 (kW) and speed n1 (r / min) transmitted by the gear, the gear torque T1 is calculated by the following formula:

[0125]

[0126] In this embodiment, the speed is n1 = 107 r / min, and the power transmitted by the gear is P1 = 300 kW.

[0127] Gear torque:

[0128] Tangential force:

[0129] Radial force: F r =F t tgα=24363.8N;

[0130] Normal force:

[0131] Normal force F nIt is the nominal load under ideal conditions. Due to various factors, in actual situations, the load borne by the gear during operation is often greater than the nominal load. In strength calculations, the load factor K is used to consider various factors affecting the load to calculate the load F. nc Instead of the nominal load F n , calculated according to the following formula:

[0132] F nc =KF n ;

[0133] The load factor K is set according to the medium impact of the motor, K = 1.4. Therefore,

[0134] F nc =KF n =99729N.

[0135] The bogie in this embodiment has a deadweight of 20kN, and the permissible axle weight of each running frame is 70kN. From the above calculation, it can be known that the maximum driving force normal force that each driving device can provide is

[0136]

[0137] Its tangential and normal components are: Tangential force

[0138] Radial force F r =F t tgα=24363.8N.

[0139] The stabilizing gear can provide a normal force which is taken as F for safety reasons. n =71235N, its tangential and normal components are: Tangential force F t =66939N, radial force F r =24363.8N.

[0140] In terms of force and function, the mass of the vehicle and bogie is m' 2-1 , weight is G2' -1 =280kN, deadweight is perpendicular to the running gear zxcl -1 With running tooth slot zxcc -1 The vertical tangent force of the track beam at the intersection is G c ' 2-1 , parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The vertical tangent force of the track beam at the intersection is G' p2-1In this embodiment, the cross-sectional dimensions of the track beam are 3m×3m, with the x-axis perpendicular to the vertical tangent of the track beam, and the x-axis passing through the center of the bogie. The x-axis is 3m from the front of the track beam on the vehicle side as the origin of the coordinate system. The x-axis is in the direction of the bogie as the positive direction, and the x-axis rotates 90° counterclockwise around the origin of the coordinate system as the y-axis, so as to establish a Cartesian rectangular coordinate system. The bending moment generated by the weight of the vehicle and the bogie translated to the origin of the coordinate system is M' g2-1 =280kN·m, the direction is counterclockwise. The vehicle is parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The acceleration of the vertical tangent direction of the track beam at the intersection is a' p2-1 , perpendicular to the running gear zxcl -1 With running tooth slot zxcc -1 The acceleration of the vertical tangent direction of the track beam at the intersection is a' c2-1 For each running frame, the running gear zxcl -1 The running gear is rotated under the drive or brake of the driving brake device. -1 The running tooth groove zxcc that transmits the torque to the front of the track beam -1 , walking alveolar zxcc -1 Reaction to the running gear zxcl -1 , where the running tooth slot zxcc -1 Reacting to the i-th running gear zxcl -1 The force is decomposed into the force perpendicular to the running gear zxcl -1 With running tooth slot zxcc -1 The vertical tangent force P of the track beam at the intersection c ' i-1 , and parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The vertical tangent force P of the track beam at the intersection p ' i-1 ; Stable tooth groove wdcc -1 Acting on the ith stable gear wdcl -1 The force acting on the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The vertical tangent force W of the track beam at the intersection c ' i-1 , and parallel to the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The vertical tangent force W of the track beam at the intersection p ' i-1 The coordinate origin points to the i-th running gear zxcl -1With running tooth slot zxcc -1 The vector of the point of action is parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The projection of the vertical tangent line of the track beam at the intersection is c i-1 , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative; the coordinate origin points to the i-th running gear zxcl -1 With running tooth slot zxcc -1 The vector of the point of action is perpendicular to the running gear zxcl -1 With running tooth slot zxcc -1 The projection of the vertical tangent line of the track beam at the intersection is h i-1 , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative. For this embodiment:

[0141] c 1-1 =-1.5m,c 2-1 =-1.5m

[0142] c 3-1 =-0.5m,c 4-1 =-0.5m

[0143] c 5-1 =0.5m,c 6-1 =0.5m

[0144] c 7-1 =1.5m,c 8-1 =1.5m

[0145] h 1-1 ~h 8-1 =3m

[0146] The coordinate origin points to the i-th stable gear wdcl -1 With stable tooth groove wdcc -1 The vector of the point of action is parallel to the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The projection of the vertical tangent line of the track beam at the intersection is j i-1 , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative; the origin of the coordinate points to the i-th stable gear wdcl -1 With stable tooth groove wdcc -1 The vector of the point of action is perpendicular to the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The projection of the vertical tangent line of the track beam at the intersection is k i-1 , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative. For this embodiment:

[0147] j 1-1=-1.5m,j 2-1 =-1.5m

[0148] j 3-1 =-0.5m,j 4-1 =-0.5m

[0149] j 5-1 =0.5m,j 6-1 =0.5m

[0150] j 7-1 =1.5m,j 8-1 =1.5m

[0151] k 1-1 ~k 8-1 =6m

[0152] It is known that the maximum driving force normal force that each driving device can provide is

[0153]

[0154] Its tangential and normal components are: Tangential force

[0155] Radial force F r =F t tgα=24363.8N.

[0156] The maximum tangential driving force that this bogie can provide is approximately (66×m) kN, where m is the number of driving devices. The maximum tangential braking force is calculated as (67×n) kN for safety reasons, where n is the number of brake gears.

[0157] The force mechanism of a two-wheel gear vehicle bogie in an anti-overturning "1+1" combination form described in this embodiment is as follows:

[0158] 1) Rail transit vehicle climbing

[0159] When a rail transit vehicle is climbing, the running gear -1 It rotates under the drive of the driving brake device, and the force it bears is the driving force.

[0160] Loads borne by rail transit vehicles:

[0161] (1) Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 Upward shear force in the vertical tangent direction of the track beam at the intersection:

[0162] (2) Parallel to the running gear zxcl -1 With running tooth slot zxcc-1 Downward sliding force in the vertical tangent direction of the track beam at the intersection:

[0163] (3) The running frame located on the negative side of the y-axis among the four running gears is running frame zxkj1 -1 , Traveling frame zxkj2 -1 , the running frame located on the positive side of the y-axis is the running frame zxkj3 -1 , Traveling frame zxkj4 -1 , taking the origin of the coordinate system as the moment center, the bending moment is:

[0164] Overturning moment:

[0165] Anti-overturning moment M k2-1 :

[0166] According to Newton's second law:

[0168] F' q-1 -F' h-1 =m' 2-1 a' p2-1 ;

[0169]

[0170] When a rail transit vehicle climbs a track beam with a 90° vertical slope at a constant speed, it is assumed that: -1 Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The vertical tangent force of the track beam at the intersection is equal, which is b -1 kN; each stable gear wdcl -1 Parallel to the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The vertical tangent force of the track beam at the intersection is equal, which is e -1 kN; each running gear zxcl -1 Vertical to the running gear zxcl -1 With running tooth slot zxcc -1 The magnitude of the force acting in the vertical tangent direction of the track beam at the intersection is along the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The vertical tangent direction of the track beam at the intersection changes linearly; each stable tooth groove wdcc -1 Vertical to the stabilizing gear wdcl -1 With stable tooth groove wdcc -1The magnitude of the force acting in the vertical tangent direction of the track beam at the intersection is along the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The vertical tangent direction of the track beam at the intersection changes linearly. The bogie needs to provide a parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The upward driving force in the vertical tangent direction of the track beam at the intersection is:

[0171]

[0172] That is: 8b -1 =280kN+8e -1 ;

[0173] Through the balance relationship calculation, we can get: e -1 ≈20.8kN, b -1 ≈55.8kN.

[0174] The bogie needs to provide a parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The upward driving force in the vertical tangent direction of the track beam at the intersection is 447kN. Therefore, this bogie requires 8 drive devices, and the maximum driving force that can be provided is 528kN, which meets the requirements.

[0175] Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The upward driving force V in the vertical tangent direction of the track beam at the intersection z ' -1 ≥Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The downward sliding force F in the vertical tangent direction of the track beam at the intersection h ' -1 When the rail transit vehicle is climbing, the running gear is zxcl -1 Located on the front of the track beam, stabilizing gear wdcl -1 Located on the back of the track beam, the running gear zxcl -1 Bearing running tooth groove zxcc -1 Given parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The upward shear force V in the vertical tangent direction of the track beam at the intersection z ' -1 Provide anti-slip force for rail transit vehicles running on track beams; running gear zxcl -1 Bearing running tooth groove zxcc -1 The applied force F and the stable gear wdcl -1Stable tooth groove wdcc -1 The torque M formed by the applied force W k2-1 It provides anti-overturning moment for rail transit vehicles running on track beams, thereby enabling rail transit vehicles to climb super-large slopes greater than 50° and vertical slopes of 90°.

[0176] 2) Rail transit vehicles are stationary

[0177] Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The upward shear force V in the vertical tangent direction of the track beam at the intersection z ' -1 Equal to parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The downward sliding force F in the vertical tangent direction of the track beam at the intersection h ' -1 , running gear zxcl -1 Bearing running tooth groove zxcc -1 The applied force F and the stable gear wdcl -1 Stable tooth groove wdcc -1 The applied force W forms an anti-overturning moment M k2-1 , overturning moment M' f2-1 Equal to the anti-overturning moment M k2-1 The rail transit vehicle is at a standstill.

[0178] 3) Rail transit vehicles going downhill

[0179] When the rail transit vehicle goes downhill, the running gear -1 When the vehicle rotates under the braking of the driving brake device, the force it bears is the braking force.

[0180] Loads borne by rail transit vehicles:

[0181] (1) Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The upward braking force in the vertical tangent direction of the track beam at the intersection:

[0182] (2) Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 Downward sliding force in the vertical tangent direction of the track beam at the intersection:

[0183] (3) The running frame located on the negative side of the x-axis among the four running gears is running frame zxkj1 -1 , Traveling frame zxkj2-1 , the running frame located on the positive side of the x-axis is the running frame zxkj3 -1 , Traveling frame zxkj4 -1 , with the origin of the coordinate system as the moment center, the bending moment is:

[0184] Overturning moment:

[0185] Anti-overturning moment M k2-1 :

[0186] According to Newton's second law:

[0188] F' q-1 -F' h-1 =m' 2-1 a' p2-1 ;

[0189]

[0190] When a rail transit vehicle is moving downhill at a constant speed on a track beam with a vertical slope of 90°, it is assumed that: -1 Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The vertical tangent force of the track beam at the intersection is equal, which is b -1 kN; each stable gear wdcl -1 Parallel to the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The vertical tangent force of the track beam at the intersection is equal, which is e -1 kN; each running gear zxcl -1 Vertical to the running gear zxcl -1 With running tooth slot zxcc -1 The magnitude of the force acting in the vertical tangent direction of the track beam at the intersection is along the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The vertical tangent direction of the track beam at the intersection changes linearly; each stable tooth groove wdcc -1 Vertical to the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The magnitude of the force acting in the vertical tangent direction of the track beam at the intersection is along the stabilizing gear wdcl -1 With stable tooth groove wdcc -1 The vertical tangent direction of the track beam at the intersection changes linearly. The bogie needs to provide a parallel to the running gear zxcl -1 With running tooth slot zxcc -1The upward braking force in the vertical tangent direction of the track beam at the intersection is:

[0191]

[0192] That is: 8b -1 =280kN+8e -1 .

[0193] Through the balance relationship calculation, we can get: e -1 ≈20.8kN, b -1 ≈55.8kN.

[0194] The bogie needs to provide a parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The upward braking force in the vertical tangent direction of the track beam at the intersection is 447 kN. Therefore, this bogie requires 8 brake wheels, and the maximum braking force that can be provided is 536 kN, which meets the requirements.

[0195] Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The upward braking force F in the vertical tangent direction of the track beam at the intersection z ' -1 It can make rail transit vehicles go downhill at a relatively stable speed on a slope with a very large slope, that is, the braking force F parallel to the track beam z ' -1 ≈Parallel to the running gear zxcl -1 With running tooth slot zxcc -1 The downward sliding force F in the vertical tangent direction of the track beam at the intersection h ' -1 . Traveling gear zxcl -1 Located on the front of the track beam, stabilizing gear wdcl -1 Located on the back of the track beam, the running gear zxcl -1 Bearing running tooth groove zxcc -1 The applied force F and the stable gear wdcl -1 Stable tooth groove wdcc -1 The torque M formed by the applied force W k2-1 It provides anti-overturning moment for rail transit vehicles running on track beams, so as to realize rail transit vehicles going downhill with a large slope greater than 50° and a vertical slope of 90°.

[0196] Embodiment 2: A 4-wheel rail transit vehicle bogie with an anti-overturning "1+1" combination using a running guide frame

[0197] The minimum radius of the designed running track beam of the bogie described in this embodiment is about 100m, and the running frame adopts a "1+1" combination, that is, the running frames are connected by universal joint traction shafts, which have better steering capabilities. During the design, when the design axle weight of the running frame is large, a multi-wheel gear transportation vehicle bogie is preferably used. By increasing the number of running gears and stabilizing gears, the force on each running gear and stabilizing gear is reduced, wear is reduced, and the service life is increased. The load borne by each running frame of the bogie described in this embodiment is about 85kN, and each running frame is provided with 4 running gears and 4 stabilizing gears.

[0198] Combination Figure 11 to Figure 14 A 4-wheel rail transit vehicle bogie with a "1+1" combination of anti-rollover and running guide frames based on this patent is demonstrated. The 4-wheel rail transit vehicle bogie with an anti-rollover and running guide frame with a "1+1" combination includes two running frames zxkj -2 , that is, the running frame zxkj1 -2 , Traveling frame zxkj2 -2 ; 2 travel guide frames zxdx -2 , that is, the walking guide frame zxdx1 -2 , walking guide frame zxdx2 -2 ; Each walking guide frame zxdx -2 Set 2 guide wheels zddxl -2 , a total of 4 guide wheels zddxl -2 , that is, guide wheel zddxl -2 、Guide wheel dxl2 -2 、Guide wheel dxl3 -2 、Guide wheel dxl4 -2 ; Between the walking frames and the walking frames, and between the walking frames and the walking guide frames, there are traction shafts qyz -2 Connection, traction shaft qyz -2 Including rigid traction shaft gqyz -2 And universal joint traction shaft wqyz -2 , that is, rigid traction axis gqyz1 -2 , Rigid traction shaft gqyz2 -2 And universal joint traction shaft wqyz1 -2 The "4 wheels" in the 4-wheel rail transit vehicle bogie with a "1+1" combination of anti-overturning running guide frames refer to the running frame zxkj -2 The 4 running gears are set on the -2 and 4 stabilizing gears wdcl -2 ; Each walking guide frame zxdx -2The 4 running gears are set on -2 and 4 stabilizing gears zdwdcl -2 This bogie has a total of 16 running gears. -2 and 16 stabilizing gears zdwdcl -2 .

[0199] Structurally, the bogie is equipped with two running frames zxkj -2 , running frame zxkj -2 Includes two stabilizing arms wdb -2 、Differential csq -2 , running gear zxcl -2 , stable gear wdcl -2 and connecting shaft ljz -2 . Each running frame zxkj -2 Set 4 running gears zxcl -2 and 4 stabilizing gears wdcl -2 , running gear zxcl -2 Set on the connecting shaft ljz -2 Upper, stable gear wdcl -2 Set on the stabilizing arm, two of which are running gears zxcl -2 and 2 stabilizing gears wdcl -2 Located in the running frame zxkj -2 Differential csq -2 On the left side, the other two running gears zxcl -2 And another 2 stabilizing gears wdcl -2 Located in the running frame zxkj -2 Differential csq -2 On the right side, the running frame zxkj -2 It is a bilaterally symmetrical structure. Each running frame zxkj -2 The four running gears zxcl are located on the front of the track beam -2 With track beam gdl -2 The 4 running teeth on the upper side zxcc -2 Meshing, located on the track beam gdl -2 4 stabilizing gears wdcl on the back -2 4 stabilizing tooth grooves wdcc on the back of the track beam -2Meshing. The i-th running gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first running gear on the running frame is the first running gear, and the second running gear is the second running gear. The i-th stabilizing gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first stabilizing gear on the running frame is the first stabilizing gear, and the second stabilizing gear is the second stabilizing gear. Installed on the same running frame zxkj -2 The first running gear on zxcl -2 and the first stabilizing gear wdcl -2 Coplanar, second running gear zxcl -2 and the second stabilizing gear wdcl -2 Coplanar, the i-th running gear zxcl -2 and the ith stable gear wdcl -2 Coplanar. The bogie is equipped with 2 running guide frames zxdx -2 , that is, the walking guide frame zxdx1 -2 And walking guide frame zxdx2 -2 , respectively set at both ends of the bogie. Walking guide frame zxdx -2 Includes 2 stabilizing arms -2 、Differential -2 , guide wheel zddxl -2 , running gearzdzxcl -2 , stable gearzdwdcl -2 And connecting shaft -2 Each walking guide frame zxdx -2 Set 4 running gears -2 and 4 stabilizing gears zdwdcl -2 , running gear zdzxcl -2 Set on the connecting shaft zdljz -2 Upper, stable gear zdwdcl -2 Set on the stabilizing arm, 2 of which are running gears -2 and 2 stabilizing gears zdwdcl -2 Located in the differential -2 On the left side, the other two running gears are -2 And 2 other stable gears zdwdcl -2 Located in the differential -2 On the right side, the walking guide frame zxdx -2 It is a bilaterally symmetrical structure. Each walking guide frame is zxdx -2 The four running gears located on the front of the track beam are-2 With track beam gdl -2 The 4 running teeth on the upper side zxcc -2 Meshing, located on the track beam gdl -2 4 stabilizing gears on the back zdwdcl -2 4 stabilizing tooth grooves wdcc on the back of the track beam -2 Meshing. The i-th walking gear on the walking guide frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first walking gear on the walking guide frame is the first walking gear, the second walking gear is the second walking gear, and the i-th walking gear is the i-th walking gear. The i-th stabilizing gear on the walking guide frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first stabilizing gear on the walking guide frame is the first stabilizing gear, the second stabilizing gear is the second stabilizing gear, and the i-th stabilizing gear is the i-th stabilizing gear. Installed on the same walking guide frame zxkj -2 The first running gear on zxcl -2 and the first stabilizing gear wdcl -2 Coplanar, second running gear zxcl -2 and the second stabilizing gear wdcl -2 Coplanar, the i-th running gear zxcl -2 and the ith stable gear wdcl -2 Coplanar. Each walking guide frame zxdx -2 Two guide wheels are set on the top -2 The guide wheel zddxl-2 is a round rubber wheel. The traction shaft qyz is used between the walking frame and the adjacent walking frame, and between the walking frame and the adjacent walking guide frame. -2 Connection, traction shaft qyz -2 Set on the left and right symmetrical axes of the bogie, the traction shaft is a rigid traction shaft gqyz -2 , or universal joint traction shaft wqyz -2 . Bogie running frame zxkj -2 The connection combination between them adopts the "1+1" connection combination. The first "1" represents one running frame, the second "1" represents one running frame, and the "+" sign represents the universal joint traction shaft connection, that is, the "1+1" connection combination of the running frame means that the running frame and the adjacent running frame are connected by a universal joint traction shaft, that is, the running frame zxkj1 -2 And running frame zxkj2 -2 Through the universal joint traction shaft wqyz1 -2 Connection. The walking guide frame zxdx1 is set at both ends of the bogie -2And walking guide frame zxdx2 -2 With adjacent running frame zxkj1 -2 And running frame zxkj2 -2 The rigid traction shaft is used to connect the two, that is, the walking guide frame zxdx1 -2 And running frame zxkj1 -2 Rigid traction shaft Rigid traction shaft gqyz1 -2 Connection, walking guide frame zxdx2 -2 And running frame zxkj2 -2 Rigid traction shaft Rigid traction shaft gqyz2 -2 connect.

[0200] In terms of force and function, the mass of the vehicle and bogie is m' 2-2 , weight is G2' -2 =280kN, deadweight is perpendicular to the running gear zxcl -2 With running tooth slot zxcc -2 The vertical tangent force of the track beam at the intersection is G c ' 2-1 , parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The vertical tangent force of the track beam at the intersection is G' p2-2 In this embodiment, the cross-sectional dimensions of the track beam are 3m×3m, with the x-axis perpendicular to the vertical tangent of the track beam, and the x-axis passing through the center of the bogie. The x-axis is 3m from the front of the track beam on the vehicle side as the origin of the coordinate system. The x-axis is in the direction of the bogie as the positive direction, and the x-axis rotates 90° counterclockwise around the origin of the coordinate system as the y-axis, so as to establish a Cartesian rectangular coordinate system. The bending moment generated by the weight of the vehicle and the bogie translated to the origin of the coordinate system is M' g2-2 =280kN·m, the direction is counterclockwise. The vehicle is parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The acceleration of the vertical tangent direction of the track beam at the intersection is a' p2-2 , perpendicular to the running gear zxcl -2 With running tooth slot zxcc -2 The acceleration of the vertical tangent direction of the track beam at the intersection is a' c2-2 For each running frame, the running gear zxcl -2 The running gear is rotated under the drive or brake of the driving brake device. -2 The running tooth groove zxcc that transmits the torque to the front of the track beam -2 , walking alveolar zxcc -2 Reaction to the running gear zxcl -2, where the running tooth slot zxcc -2 Reacting to the i-th running gear zxcl -2 The force is decomposed into the force perpendicular to the running gear zxcl -2 With running tooth slot zxcc -2 The vertical tangent force P of the track beam at the intersection c ' i-2 , and parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The vertical tangent force P of the track beam at the intersection p ' i-2 ; Stable tooth groove wdcc -2 Acting on the ith stable gear wdcl -2 The force acting on the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The vertical tangent force W of the track beam at the intersection c ' i-2 , and parallel to the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The vertical tangent force W of the track beam at the intersection p ' i-2 The coordinate origin points to the i-th running gear zxcl -2 With running tooth slot zxcc -2 The vector of the point of action is parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The projection of the vertical tangent line of the track beam at the intersection is c i-2 , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative; the coordinate origin points to the i-th running gear zxcl -2 With running tooth slot zxcc -2 The vector of the point of action is perpendicular to the running gear zxcl -2 With running tooth slot zxcc -2 The projection of the vertical tangent line of the track beam at the intersection is h i-2 , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative. For this embodiment:

[0201] c 1-2 =-1.5m, c 2-2 =-1.5m, c 3-2 =-1.5m, c 4-2 =-1.5m

[0202] c 5-2 =-0.5m,c 6-2 =-0.5m,c 7-2 =-0.5m,c8-2 =-0.5m

[0203] c 9-2 =0.5m,c 10-2 =0.5m,c 11-2 =0.5m,c 12-2 =0.5m

[0204] c 13-2 =1.5m,c 14-2 =1.5m,c 15-2 =1.5m,c 16-2 =1.5m

[0205] h 1-1 ~h 16-1 =3m

[0206] The coordinate origin points to the i-th stable gear wdcl -2 With stable tooth groove wdcc -2 The vector of the point of action is parallel to the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The projection of the vertical tangent line of the track beam at the intersection is j i-2 , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative; the origin of the coordinate points to the i-th stable gear wdcl -2 With stable tooth groove wdcc -2 The vector of the point of action is perpendicular to the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The projection of the vertical tangent line of the track beam at the intersection is k i-2 , pointing to the positive direction of the coordinate axis is positive, and pointing to the negative direction of the coordinate axis is negative. For this embodiment:

[0207] j 1-2 =-1.5m,j 2-2 =-1.5m,j 3-2 =-1.5m,j 4-2 =-1.5m

[0208] j 5-2 =-0.5m,j 6-2 =-0.5m,j 7-2 =-0.5m,j 8-2 =-0.5m

[0209] j 9-2 =0.5m,j 10-2 =0.5m,j 11-2 =0.5m,j 12-2 =0.5m

[0210] j 13-2=1.5m,j 14-2 =1.5m,j 15-2 =1.5m,j 16-2 =1.5m

[0211] k 1-2 ~k 16-2 =6m

[0212] The gear-rack drive system uses the same system as in the first embodiment. It is known that the maximum driving force normal force that each driving device can provide is

[0213] Its tangential and normal components are: Tangential force

[0214] Radial force F r =F t tgα=24363.8N.

[0215] The maximum tangential driving force that this bogie can provide is approximately (66×m) kN, where m is the number of driving devices. The maximum tangential braking force is calculated as (67×n) kN for safety reasons, where n is the number of brake gears.

[0216] The force mechanism of a 4-wheel rail transit vehicle bogie with an anti-overturning "1+1" combination form using a running guide frame described in this embodiment is as follows:

[0217] 1) Rail transit vehicle climbing

[0218] When a rail transit vehicle is climbing, the running gear -2 It rotates under the drive of the driving brake device, and the force it bears is the driving force.

[0219] Loads borne by rail transit vehicles:

[0220] (1) Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 Upward shear force in the vertical tangent direction of the track beam at the intersection:

[0221] (2) Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 Downward sliding force in the vertical tangent direction of the track beam at the intersection:

[0222] (3) The running frame located on the negative side of the y-axis among the 8 running gears is running frame zxkj1 -2 , Traveling frame zxkj2 -2 , Traveling frame zxkj3-2 , Traveling frame zxkj4 -2 The running frame located on the positive side of the y-axis is the running frame zxkj5 -2 , Traveling frame zxkj6 -2 , Traveling frame zxkj7 -2 , Traveling frame zxkj8 -2 , taking the origin of the coordinate system as the moment center, the bending moment is:

[0223] Overturning moment:

[0224] Anti-overturning moment M k2-2 :

[0225] According to Newton's second law:

[0227] F' q-2 -F' h-2 =m' 2-2 a' p2-2 ;

[0228]

[0229] When a rail transit vehicle climbs a track beam with a 90° vertical slope at a constant speed, it is assumed that: -2 Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The vertical tangent force of the track beam at the intersection is equal, which is b -2 kN; each stable gear wdcl -2 Parallel to the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The vertical tangent force of the track beam at the intersection is equal, which is e -2 kN; each running gear zxcl -2 Vertical to the running gear zxcl -2 With running tooth slot zxcc -2 The magnitude of the force acting in the vertical tangent direction of the track beam at the intersection is along the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The vertical tangent direction of the track beam at the intersection changes linearly; each stable tooth groove wdcc -2 Vertical to the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The magnitude of the force acting in the vertical tangent direction of the track beam at the intersection is along the stabilizing gear wdcl -2 With stable tooth groove wdcc -2The vertical tangent direction of the track beam at the intersection changes linearly. The bogie needs to provide a parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The upward driving force in the vertical tangent direction of the track beam at the intersection is:

[0230]

[0231] That is: 16b -1 =280kN+16e -1

[0232] Through the balance relationship calculation, we can get: -1 ≈10.4kN, b -1 ≈27.9kN.

[0233] Therefore, the bogie needs to provide a parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The upward driving force in the vertical tangent direction of the track beam at the intersection is 447kN. Therefore, this bogie requires 8 drive devices, and the maximum driving force that can be provided is 528kN, which meets the requirements.

[0234] Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The upward driving force V in the vertical tangent direction of the track beam at the intersection z ' -1 ≥Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The downward sliding force F in the vertical tangent direction of the track beam at the intersection h ' -1 When the rail transit vehicle is climbing, the running gear is zxcl -2 Located on the front of the track beam, stabilizing gear wdcl -2 Located on the back of the track beam, the running gear zxcl -2 Bearing running tooth groove zxcc -2 Given parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The upward shear force V in the vertical tangent direction of the track beam at the intersection z ' -1 Provide anti-slip force for rail transit vehicles running on track beams; running gear zxcl -2 Bearing running tooth groove zxcc -2 The applied force F and the stable gear wdcl -2 Stable tooth groove wdcc -2 The torque M formed by the applied force W k2-1It provides anti-overturning moment for rail transit vehicles running on track beams, thereby enabling rail transit vehicles to climb super-large slopes greater than 50° and vertical slopes of 90°.

[0235] 2) Rail transit vehicles are stationary

[0236] Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The upward shear force V in the vertical tangent direction of the track beam at the intersection z ' -2 Equal to parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The downward sliding force F in the vertical tangent direction of the track beam at the intersection h ' -2 , running gear zxcl -2 Bearing running tooth groove zxcc -2 The applied force F and the stable gear wdcl -2 Stable tooth groove wdcc -2 The applied force W forms an anti-overturning moment M k2-2 , overturning moment M' f2-2 Equal to the anti-overturning moment M k2-2 The rail transit vehicle is at a standstill.

[0237] 3) Rail transit vehicles going downhill

[0238] When the rail transit vehicle goes downhill, the running gear -2 When the vehicle rotates under the braking of the driving brake device, the force it bears is the braking force.

[0239] Loads borne by rail transit vehicles:

[0240] (1) Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The upward braking force in the vertical tangent direction of the track beam at the intersection:

[0241] (2) Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 Downward sliding force in the vertical tangent direction of the track beam at the intersection:

[0242] (3) The running frame located on the negative side of the y-axis among the 8 running gears is running frame zxkj1 -2 , Traveling frame zxkj2 -2 , Traveling frame zxkj3 -2 , Traveling frame zxkj4 -2The running frame located on the positive side of the y-axis is the running frame zxkj5 -2 , Traveling frame zxkj6 -2 , Traveling frame zxkj7 -2 , Traveling frame zxkj8 -2 , taking the origin of the coordinate system as the moment center, the bending moment is:

[0243] Overturning moment:

[0244] Anti-overturning moment M k2-2 :

[0245] According to Newton's second law:

[0247] F' q-2 -F' h-2 =m' 2-2 a' p2-2 ;

[0248]

[0249] When a rail transit vehicle is moving downhill at a constant speed on a track beam with a vertical slope of 90°, it is assumed that: -2 Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The vertical tangent force of the track beam at the intersection is equal, which is b -2 kN; each stable gear wdcl -2 Parallel to the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The vertical tangent force of the track beam at the intersection is equal, which is e -2 kN; each running gear zxcl -2 Vertical to the running gear zxcl -2 With running tooth slot zxcc -2 The magnitude of the force acting in the vertical tangent direction of the track beam at the intersection is along the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The vertical tangent direction of the track beam at the intersection changes linearly; each stable tooth groove wdcc -2 Vertical to the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The magnitude of the force acting in the vertical tangent direction of the track beam at the intersection is along the stabilizing gear wdcl -2 With stable tooth groove wdcc -2 The vertical tangent direction of the track beam at the intersection changes linearly. The bogie needs to provide a parallel to the running gear zxcl-2 With running tooth slot zxcc -2 The upward braking force in the vertical tangent direction of the track beam at the intersection is:

[0250]

[0251] That is: 16b -1 =280kN+16e -1 .

[0252] Through the balance relationship calculation, we can get: e -1 ≈10.4kN, b -1 ≈27.9kN.

[0253] Therefore, the bogie needs to provide a parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The upward braking force in the vertical tangent direction of the track beam at the intersection is 447 kN. Therefore, this bogie requires 8 brake wheels, and the maximum braking force that can be provided is 536 kN, which meets the requirements.

[0254] Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The upward braking force F in the vertical tangent direction of the track beam at the intersection z ' -2 It can make rail transit vehicles go downhill at a relatively stable speed on a slope with a very large slope, that is, the braking force F parallel to the track beam z ' -2 ≈Parallel to the running gear zxcl -2 With running tooth slot zxcc -2 The downward sliding force F in the vertical tangent direction of the track beam at the intersection h ' -2 . Traveling gear zxcl -2 Located on the front of the track beam, stabilizing gear wdcl -2 Located on the back of the track beam, the running gear zxcl -2 Bearing running tooth groove zxcc -2 The applied force F and the stable gear wdcl -2 Stable tooth groove wdcc -2 The torque M formed by the applied force W k2-2 It provides anti-overturning moment for rail transit vehicles running on track beams, so as to realize rail transit vehicles going downhill with a large slope greater than 50° and a vertical slope of 90°.

[0255] The structural design process of the bogie is the same as the design concept and process of Example 1, which will not be repeated here. The design calculation is performed with reference to Example 1 and the design of structural fatigue, seismic resistance, resonance, etc. with reference to relevant specifications.

[0256] Embodiment 3: A 2-wheel rail transit vehicle bogie that is anti-overturning and uses a "1+1" combination of a guide frame and a running guide frame

[0257] Combination Figure 15 to Figure 18 A 2-wheel rail transit vehicle bogie in the form of a "1+1" combination of an anti-overturning guide frame and a running guide frame based on this patent is demonstrated. The 2-wheel rail transit vehicle bogie in the form of a "1+1" combination of an anti-overturning guide frame and a running guide frame includes 4 running frames zxkj -3 , that is, the running frame zxkj1 -3 , Traveling frame zxkj2 -3 , Traveling frame zxkj3 -3 And running frame zxkj4 -3 ; 2 guide frames, namely guide frame dxkj1 -3 , guide frame dxkj2 -3 Each guide frame is equipped with 2 guide wheels; 1 walking guide frame zxdx -3 , that is, the walking guide frame zxdx1 -3 Each walking guide frame zxdx -3 Set 2 guide wheels zddxl -3 ; Between the walking frames, between the walking frames and the guide frames, and between the walking frames and the walking guide frames, there are traction shafts qyz -3 Connection, traction shaft qyz -3 Divided into rigid traction shaft gqyz -3 And universal joint traction shaft wqyz -3 The "2 wheels" in the 2-wheel rail transit vehicle bogie in the anti-overturning use guide frame and running guide frame in the form of a "1+1" combination refers to each running frame zxkj -3 The two running gears zxcl are set on -3 and 2 stabilizing gears wdcl -3 ; Each walking guide frame zxdx -3 The two running gears are set on -3 and 2 stabilizing gears zdwdcl -3 .

[0258] like Figure 15 to Figure 18 As shown, structurally, the bogie is equipped with 4 running frames zxkj -3 , running frame zxkj -3 Includes two stabilizing arms wdb -3 、Differential csq -3 , running gear zxcl -3, stable gear wdcl -3 and connecting shaft ljz -3 . Each running frame zxkj -3 Set 2 running gears zxcl -3 and 2 stabilizing gears wdcl -3 , running gear zxcl -3 Set on the connecting shaft ljz -3 Upper, stable gear wdcl -3 Set on the stabilizing arm, one of which is a running gear zxcl -3 and 1 stabilizing gear wdcl -3 Located in the running frame zxkj -3 Differential csq -3 On the left side, another running gear zxcl -3 And another stabilizing gear wdcl -3 Located in the running frame zxkj -3 Differential csq -3 On the right side, the running frame zxkj -3 It is a bilaterally symmetrical structure. Each running frame zxkj -3 The two running gears zxcl are located on the front of the track beam -3 With track beam gdl -3 2 running teeth on the upper side zxcc -3 Meshing, located on the track beam gdl -3 2 stabilizing gears wdcl on the back -3 2 stabilizing tooth grooves wdcc on the back of the track beam -3 Meshing. The i-th running gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first running gear on the running frame is the first running gear, and the second running gear is the second running gear. The i-th stabilizing gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first stabilizing gear on the running frame is the first stabilizing gear, and the second stabilizing gear is the second stabilizing gear. Installed on the same running frame zxkj -3 The first running gear on zxcl -3 and the first stabilizing gear wdcl -3 Coplanar, second running gear zxcl -3 and the second stabilizing gear wdcl -3 Coplanar, the i-th running gear zxcl -3 and the ith stable gear wdcl -3 Coplanar. The bogie is equipped with two guide frames dxkj -3 , respectively set at both ends of the bogie. Guide frame dxkj -3Including connecting shaft dljz -3 、Guide arm dxb -3 and guide wheel dxl -3 Each guide frame dxkj -1 2 guide wheels dxl are set on -1 , guide wheel dxl -1 It is a round rubber wheel. The bogie is equipped with a walking guide frame zxdx -3 . Walking guide frame zxdx -3 Includes 2 stabilizing arms -3 、Differential -3 , guide wheel zddxl -3 , running gearzdzxcl -3 , stable gearzdwdcl -3 And connecting shaft -3 Each walking guide frame zxdx -3 Set up 2 running gears -3 and 2 stabilizing gears zdwdcl -3 , running gear zdzxcl -3 Set on the connecting shaft zdljz -3 Upper, stable gear zdwdcl -3 Set on the stabilizing arm, one of which is a running gear -3 and 1 stabilizing gear zdwdcl -3 Located in the differential -3 On the left side, another running gear -3 And another stabilizing gear zdwdcl -3 Located in the differential -3 On the right side, the walking guide frame zxdx -3 It is a bilaterally symmetrical structure. Each walking guide frame is zxdx -3 The two running gears located on the front of the track beam are -3 With track beam gdl -3 2 running teeth on the upper side zxcc -3 Meshing, located on the track beam gdl -3 2 stabilizing gears on the back zdwdcl -3 2 stabilizing tooth grooves wdcc on the back of the track beam -3Meshing. The i-th walking gear on the walking guide frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first walking gear on the walking guide frame is the first walking gear, the second walking gear is the second walking gear, and the i-th walking gear is the i-th walking gear. The i-th stabilizing gear on the walking guide frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first stabilizing gear on the walking guide frame is the first stabilizing gear, the second stabilizing gear is the second stabilizing gear, and the i-th stabilizing gear is the i-th stabilizing gear. Installed on the same walking guide frame zxkj -3 The first running gear on zxcl -3 and the first stabilizing gear wdcl -3 Coplanar, second running gear zxcl -3 and the second stabilizing gear wdcl -3 Coplanar, the i-th running gear zxcl -3 and the ith stable gear wdcl -3 Coplanar. Each walking guide frame zxdx -3 Two guide wheels are set on the top -3 The guide wheel zddxl-3 is a round rubber wheel. The traction shaft qyz is used between the walking frame and the adjacent walking frame, between the walking frame and the adjacent guide frame, and between the walking frame and the adjacent walking guide frame. -3 Connection, traction shaft qyz -3 Set on the left and right symmetrical axes of the bogie, the traction shaft is a rigid traction shaft gqyz -3 , or universal joint traction shaft wqyz -3 . Bogie running frame zxkj -3 The connection combination between them adopts the "1+1" connection combination. The first "1" represents one running frame, the second "1" represents one running frame, and the "+" sign represents the universal joint traction shaft connection, that is, the "1+1" connection combination of the running frame means that the running frame and the adjacent running frame are connected by a universal joint traction shaft, that is, the running frame zxkj1 -3 And running frame zxkj2 -3 Through the universal joint traction shaft wqyz1 -3 Connection, running frame zxkj3 -3 And running frame zxkj4 -3 Through the universal joint traction shaft wqyz2 -3 Connection. Guide frame dkxj1 installed at both ends of the bogie -3 and guide frame dxkj2 -3 With adjacent running frame zxkj1 -3 And running frame zxkj4-3 A rigid traction shaft is used to connect the guide frame dkxj1 -3 And running frame zxkj1 -3 Rigid traction shaft Rigid traction shaft gqyz1 -3 Connection, guide frame dxkj2 -3 And running frame zxkj4 -3 Rigid traction shaft Rigid traction shaft gqyz4 -3 Connection. Walking guide frame zxdx -3 And running frame zxkj2 -3 Rigid traction shaft gqyz2 -3 Connection, walking guide frame zxdx -3 And running frame zxkj3 -3 Rigid traction shaft gqyz3 -3 connect.

[0259] The design and calculation process of the bogie described in this embodiment is the same as the design ideas and processes of Embodiments 1 and 2, which will not be repeated here. The design and calculation are performed with reference to Embodiment 1 and the design of structural fatigue, seismic resistance, resonance, etc. with reference to relevant specifications.

[0260] Example 4: A rail transit vehicle bogie with a "1+1" combination of two gear wheels and two rubber wheels that is anti-overturning

[0261] The minimum radius of the designed running track beam of the bogie described in this embodiment is about 100m, and the running frame adopts a "1+1" combination, that is, the running frames are connected by universal joint traction shafts, which has better steering ability. When designing, when the design axle weight of the bogie is small, it is recommended that: when the design axle weight is ≤80kN, since the design axle weight of each running frame is small, each running gear and stabilizing gear is less stressed and less worn, a 2-wheel gear transportation vehicle bogie is preferred. The load borne by each running frame of the bogie described in this embodiment is about 70kN. In order to better combine with existing rail transit vehicles using rubber tires. It is designed that in the flat or gentle slope stage, the vehicle can still use rubber tires to run, and in the super-large slope stage, the rubber tires and gears work in coordination. The bogie of this embodiment is provided with 2 rubber running wheels and 2 rubber stabilizing wheels on the running frame, forming a rail transit vehicle bogie with 2-wheel gears and 2-wheel rubber running wheels in the form of an anti-overturning "1+1" combination.

[0262] Combination Figure 19 to Figure 21A 2-wheel gear and 2-wheel rubber wheel transportation vehicle bogie with an anti-overturning "1+1" combination form using a guide frame based on this patent is demonstrated. The 2-wheel gear and 2-wheel rubber wheel transportation vehicle bogie with an anti-overturning "1+1" combination form using a guide frame includes 2 running frames zxkj -1 , that is, the running frame zxkj1 -4 , Traveling frame zxkj2 -4 ; 2 guide frames dxkj -4 , that is, the guide frame dxkj1 -4 , guide frame dxkj2 -4 ; Each running frame zxkj -4 Set 2 running gears zxcl -4 , 2 stabilizing gears wdcl -4 , 2 rubber running wheels xjzxl -4 and 2 rubber stabilizing wheels xjwdl -4 ; Each guide frame dxkj -4 Set 2 guide wheels dxl -4 , a total of 4 guide wheels dxl -4 , that is, guide wheel dxl -4 、Guide wheel dxl2 -4 、Guide wheel dxl3 -4 、Guide wheel dxl4 -4 ; Between the walking frames and the walking frames, and between the walking frames and the guide frames, there are traction shafts qyz -4 Connection, traction shaft qyz -4 Including rigid traction shaft gqyz -4 And universal joint traction shaft wqyz -4 , that is, rigid traction axis gqyz1 -4 、Universal joint traction shaft wqyz1 -4 , Rigid traction shaft gqyz2 -4 The "2 wheels" in the anti-overturning "1+1" combination of 2-wheel gear and 2-wheel rubber wheel transportation vehicle bogie refers to each running frame zxkj -4 The two running gears zxcl are set on -4 , 2 stabilizing gears wdcl -4 And 2 rubber running wheels xjzxl -4 This bogie has 4 running gears zxcl -4 , 4 stabilizing gears wdcl -4 And 4 rubber running wheels xjzxl -4 and 4 rubber stabilizing wheels xjwdl -4 .

[0263] like Figure 19 to Figure 21As shown, structurally, the bogie is equipped with two running frames zxkj -4 , running frame zxkj -4 Including stabilizer arm, differential, running gear zxcl -4 , stable gear wdcl -4 , Rubber running wheel xjzxl -4 、Rubber stabilizing wheel xjwdl -4 and connecting shaft ljz -4 . Each running frame zxkj -4 Set 2 running gears zxcl -4 , 2 stabilizing gears wdcl -4 , 2 rubber stabilizing wheels xjwdl -4 And 2 rubber running wheels xjzxl -4 , rubber running wheel xjzxl -4 And running gear zxcl -4 Set on the connecting shaft, stabilizer gear wdcl -4 Set on the stabilizing arm, one of which is a running gear zxcl -4 , 1 stabilizing gear wdcl -4 , 1 rubber stabilizing wheel xjwdl -4 And 1 rubber running wheel xjzxl -4 Located in the running frame zxkj -4 Differential csq -4 On the left side, another running gear zxcl -1 , another stabilizing gear wdcl -1 , 1 rubber stabilizing wheel xjwdl -4 And 1 rubber running wheel xjzxl -4 Located in the running frame zxkj -4 The right side of the differential, running frame zxkj -4 It is a bilaterally symmetrical structure. Each running frame zxkj -4 The two running gears zxcl are located on the front of the track beam -4 With track beam gdl -4 2 running teeth on the upper side zxcc -4 Meshing, located on the track beam gdl -4 2 stabilizing gears wdcl on the back -4 2 stabilizing tooth grooves wdcc on the back of the track beam -4meshed. The i-th running gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first running gear on the running frame is the first running gear, and the second running gear is the second running gear. The i-th stabilizing gear on the running frame refers to the left side of the track beam as the starting direction and the right side of the track beam as the ending direction. The first stabilizing gear on the running frame is the first stabilizing gear, and the second stabilizing gear is the second stabilizing gear. The same numbering method applies to rubber running wheels and rubber stabilizing wheels. Installed on the same running frame zxkj -4 The first running gear on zxcl -4 and the first stabilizing gear wdcl -4 Coplanar, second running gear zxcl -4 and the second stabilizing gear wdcl -4 Coplanar. Installed on the same running frame zxkj -4 The first rubber running wheel on xjzxl -4 and the first rubber stabilizer wheel xjwdl -4 Coplanar, second rubber running wheel xjzxl -4 and second rubber stabilizer wheel xjwdl -4 Coplanar. The bogie is equipped with two guide frames dxkj -4 , that is, the guide frame dxkj1 -4 and guide frame dxkj2 -4 , respectively set at both ends of the bogie. Guide frame dxkj -4 Including connecting shaft dljz -4 、Guide arm dxb -4 and guide wheel dxl -4 Each guide frame dxkj -4 2 guide wheels dxl are set on -4 , guide wheel dxl -4 It is a round rubber wheel. The running frame and the adjacent running frame, and the running frame and the adjacent guide frame are connected by a traction shaft. The traction shaft is set on the left and right symmetrical axis of the bogie. The traction shaft is a rigid traction shaft, or a universal joint traction shaft. The connection combination between the running frames of the bogie adopts a "1+1" connection combination. In the "1+1" connection combination, the first "1" represents 1 running frame, and the second "1" represents 1 running frame. The "+" sign represents the use of a universal joint traction shaft connection, that is, the "1+1" connection combination of the running frame means that the running frame and the adjacent running frame are connected by a universal joint traction shaft, that is, the running frame zxkj1 -4 And running frame zxkj2 -4 Through the universal joint traction shaft wqyz1 -4 Connection. The guide frame dxkj1 is set at both ends of the bogie-4 and guide frame dxkj2 -4 With adjacent running frame zxkj1 -4 And running frame zxkj2 -4 A rigid traction shaft is used to connect the guide frame dxkj1 -4 And running frame zxkj1 -4 Through the rigid traction shaft gqyz1 -4 Connection, guide frame dxkj2 -4 And running frame zxkj2 -4 Through the rigid traction shaft gqyz2 -4 connect.

[0264] The bogie contains the stabilizer arm, differential, and running gearzxcl -4 , stable gear wdcl -4 , running frame zxkj -4 The connecting shaft, connecting shaft of the guide frame, guide arm and guide wheel dxl -4The design and relevant regulations of the traction axle refer to the "Power Car-Bogie and Running Gear-Frame Structure Strength Test", "Locomotive and Rolling Stock Bogie Train Bogie GB / T25024-2019", "Locomotive and Rolling Stock Strength Design and Test Identification Specification Bogie Part 1: Bogie Frame TB / T3549.1-2019", "Technical Conditions for Metro and Light Rail Vehicle Bogies CJ / T 365-2011", "Cargo Bogie GTCC-004-2010", "High-strength Steel Structure Design Standard JGJ / T 483-2020" and other relevant specifications. The design and relevant provisions of running gears, stabilizing gears and tooth grooves refer to "Calculation and inspection methods for torque, backlash and transmission error of precision gear transmission chain CB* / Z 178-1980", "Technical conditions for precision forged straight bevel gears for vehicle drive CGMA 3001.E01-2009", "Calculation method for load capacity of bevel gears Part 1: Overview and general influence coefficients GB / T 10062.1-2003", "Calculation method for load capacity of bevel gears Part 2: Calculation of tooth surface contact fatigue (pitting) strength GB / T 10062.2-2003", "Calculation method for load capacity of bevel gears Part 3: Calculation of tooth root bending strength GB / T 10062.3-2003", "Simplified calculation method for load capacity of general mechanical involute cylindrical gears GB / T 10063-1998", "Cylindrical gear precision system Part 1: Definition and allowable value of tooth surface deviation on the same side of gear teeth GB / T10095.1-2008", "Cylindrical gear precision system Part 2: Definition and allowable value of radial combined deviation and radial runout GB / T10095.2-2008", "Basic tooth profile of small module bevel gears GB / T 10224-1998", "Cylindrical gear module for general machinery and heavy machinery GB / T 1357-2008" and other relevant specifications.

[0265] The bogie has the ability to carry and transmit traction. The main components of the bogie should ensure that the car body and load are transmitted to the rack as evenly as possible through each wheel set, and transmit traction. The bogie components should have sufficient strength and appropriate rigidity. The static strength and dynamic strength of the key components of the bogie should meet the requirements of relevant international standards.

[0266] The dimensions of each section of the running frame, guide frame, and traction axle are mainly determined based on the load-bearing form and load size of the bogie, strength and stiffness conditions, and with reference to the structure of similar frames, problems often exposed during maintenance and use, and related calculations. The steel plate profiled welded structure should try to avoid the concentration of welds and the intersection of multiple welds in welding to reduce the internal stress at the intersection. The running frame, guide frame, and traction axle are designed with fully enclosed sections.

[0267] The load state of the connecting shaft of the running frame during the operation of the vehicle is very complex, including traction, braking force, shaft pressure and impact load from the line, etc. The rolling radius of the two wheels of the same gear wheel set may be different, or the length of the curved track may be different, which may also cause the wheel set to rotate asynchronously. Therefore, a differential is set at the center of the connecting shaft.

[0268] When designing for climbing a super-large slope, the contribution of the running rubber wheels to the climbing ability is not considered. A bogie designed in this way is safer. Therefore, the relevant force design of this embodiment is not essentially different from that of the previous bogies and will not be repeated here.

[0269] The specific implementation methods described above illustrate the purpose, technical solutions and beneficial effects of this patent. It should be emphasized that the above is only a specific embodiment of this patent and cannot be used to limit the scope of this patent. Any modifications, equivalent substitutions or improvements made within the spirit and principles of this patent should be included in the scope of protection of this patent.

Claims

1. A method for forming a vehicle bogie based on double-sided gears, characterized in that: The bogie comprises a running frame (zxkj), a guide frame (dxkj), a running guide frame (zxdx), a running gear (zxcl), a stabilizing gear (wdcl), a guide wheel (dxl) and a traction shaft (qyz). The running frame (zxkj) and the running guide frame (zxdx) are connected via a traction shaft (qyz) to form a bogie, or the running frame (zxkj) and the guide frame (dxkj) are connected via a traction shaft (qyz) to form a bogie. The running gear (zxcl) located on the front side of the track beam and the stabilizing gear (wdcl) located on the back side of the track beam are arranged on the running frame (zxkj) and the running guide frame (zxdx). gear (wdcl); the upward shear force Vzp parallel to the vertical tangent direction of the track beam at the intersection of the running gear (zxcl) and the running tooth groove (zxcc) given by the running gear (zxcl) provides the anti-slip force for the rail transit vehicle running on the track beam; the force Fz given by the running tooth groove (zxcc) borne by the running gear (zxcl) and the torque M formed by the force Fw given by the stabilizing tooth groove (wdcc) borne by the stabilizing gear (wdcl) provide the anti-overturning torque for the rail transit vehicle running on the track beam, thereby realizing the operation of the rail transit vehicle on the track beam with a super-large slope.

2. The method for forming a vehicle bogie based on double-sided gears according to claim 1, characterized in that: The one running frame (zxkj) is provided with m running gears (zxcl) and m stabilizing gears (wdcl), where m is an even number.

3. The method for forming a vehicle bogie based on double-sided gears according to claim 2, characterized in that: A rubber running wheel (xjzxl) and a stable rubber gear (xjwdl) are arranged on the running frame (zxkj), and a is an even number.

4. The method for forming a vehicle bogie based on double-sided gears according to claim 2, characterized in that: The ith running gear (zxcl) and the ith stabilizing gear (wdcl) installed on the same running frame (zxkj) are coplanar, i=1~m, m is an even number.

5. The method for forming a vehicle bogie based on double-sided gears according to claim 3, characterized in that: The i-th rubber running gear (xjzxl) and the i-th rubber stabilizing wheel (xjwdl) installed on the same running frame (zxkj) are coplanar, i=1~a, a is an even number.

6. The method for forming a vehicle bogie based on double-sided gears according to claim 1, characterized in that: Guide wheels (dxl) are arranged on the stabilizing arms (wdb) on the left and right sides of the running frame (zxkj) to form a running guide frame (zxdx).

7. The method for forming a vehicle bogie based on double-sided gears according to claim 1, characterized in that: The running frame of the bogie adopts an "m+n" connection combination method, where m∈Z, n∈Z, and Z is a non-zero natural number.

8. The method for forming a vehicle bogie based on double-sided gears according to claim 1, characterized in that: The front traction axle and the rear traction axle connected to the guide frame (dxkj) inside the bogie and the adjacent running frame (zxkj), one traction axle is a rigid traction axle (gqyz), and the other traction axle is a universal joint traction axle (wqyz); or both the front traction axle and the rear traction axle are rigid traction axles (gqyz).

9. The method for forming a vehicle bogie based on double-sided gears according to claim 1, characterized in that: The front traction axle and the rear traction axle connected to the running guide frame (zxdx) inside the bogie and the adjacent running frame (zxkj), one traction axle is a rigid traction axle (gqyz), and the other traction axle is a universal joint traction axle (wqyz); or both the front traction axle and the rear traction axle are rigid traction axles (gqyz).

10. The method for forming a vehicle bogie based on double-sided gears according to claim 1, characterized in that: The running guide frames (zxdx) on both sides of the bogie are connected to the adjacent running frames (zxkj) to form a rigid traction shaft (gqyz).

11. The method for forming a vehicle bogie based on double-sided gears according to claim 1, characterized in that: The traction shaft connecting the guide frames (dxkj) on both sides of the bogie and the adjacent running frames (zxkj) is a rigid traction shaft (gqyz).

12. The method for forming a vehicle bogie based on double-sided gears according to claim 1, characterized in that: Each walking guide frame (zxdx) is provided with s guide wheels (zddxl), where s is an even number.

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