Running gear structure of rack-and-rail vehicle, bogie and rack-and-rail vehicle

Abstract

The present invention provides a running gear structure of a rack vehicle, a bogie and a rack vehicle, the structure comprising: a gear ring part, a transmission part and an elastic part; the outer ring of the gear ring part is provided with outer gear teeth, and the outer gear teeth are meshed with a rack provided on the ground; the outer ring of the transmission part cooperates with the inner ring of the gear ring part; a plurality of elastic parts are evenly distributed on the side of the gear ring part along the circumferential direction, and are respectively connected to the gear ring part and the transmission part. The present invention solves the vibration and impact problems caused by unstable meshing during the running of the rack vehicle by adding an elastic part arranged in an annular manner on the side of the running gear, avoids the damage to the on-board equipment caused by vibration, and improves the riding comfort at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of rack and rail vehicles, and in particular to a running gear structure of a rack and rail vehicle, a bogie and a rack and rail vehicle. Background Art

[0002] With the continuous development of economy, the market demand for rack-and-pinion vehicles used in mountainous and hilly areas is becoming more and more broad. The biggest difference between rack-and-pinion vehicles and traditional vehicles is the different vehicle driving methods. Rack-and-pinion vehicles transmit torque through gears and racks to drive the vehicle forward, and can operate normally on steep slopes. However, due to the characteristics of gear and rack transmission, they bring greater impact and vibration, reducing ride comfort and causing damage to on-board equipment. Summary of the invention

[0003] The present invention provides a running gear structure of a rack-and-pinion vehicle, which is used to solve the defects that the characteristics of gear and rack transmission cause large impact and vibration, reduce riding comfort, and cause harm to on-board equipment. By adding an elastic part arranged in an annular manner on the side of the running gear, the vibration and impact problems caused by unstable meshing during the running of the rack-and-pinion vehicle are solved, the harm to on-board equipment caused by vibration is avoided, and the riding comfort is improved at the same time.

[0004] The invention also provides a bogie.

[0005] The invention also provides a rack-rail vehicle.

[0006] According to a first aspect of the present invention, a running gear structure of a rack-rail vehicle comprises: a gear ring portion, a transmission portion and an elastic portion;

[0007] The outer ring of the gear ring is provided with external gear teeth, and the external gear teeth are meshed with a rack provided on the ground;

[0008] The outer ring of the transmission part cooperates with the inner ring of the gear ring part;

[0009] The plurality of elastic parts are uniformly distributed on the side of the gear ring part along the circumferential direction, and are respectively connected to the gear ring part and the transmission part.

[0010] According to one embodiment of the present invention, a plurality of the elastic parts form an elastic assembly along the circumference of the gear ring part;

[0011] The two elastic components are symmetrically arranged on both sides of the gear ring portion along the axial direction.

[0012] Specifically, this embodiment provides an implementation method of the elastic part. By symmetrically arranging the elastic parts on both sides of the gear ring part along the axial direction of the sleeve, and multiple elastic parts are arranged in a ring shape, the ability of the running gear to transmit torque is improved, while the unbalanced load of the running gear is reduced, and the impact of the gear meshing process is reduced, thereby realizing large torque transmission of the running gear and meeting the needs of rack-rail vehicles.

[0013] According to one embodiment of the present invention, it further includes: a bushing, which is arranged between the inner ring of the gear ring part and the outer ring of the transmission part to reduce the friction coefficient between the gear ring part and the transmission part.

[0014] Specifically, this embodiment provides an implementation of a bushing. By providing the bushing, the friction coefficient is reduced, thereby solving the friction problem when relative displacement occurs between the gear ring part and the transmission part.

[0015] According to one embodiment of the present invention, it further comprises: a first mounting seat and a second mounting seat;

[0016] The first mounting seats are evenly distributed on the side of the gear ring portion along the circumferential direction;

[0017] The second mounting seats are uniformly distributed on the outer ring of the transmission part along the circumferential direction and are staggered with the first mounting seats;

[0018] Wherein, the elastic part is detachably connected to the adjacent first mounting seat and the second mounting seat respectively.

[0019] Specifically, this embodiment provides an implementation of a first mounting seat and a second mounting seat. Through the provision of the first mounting seat and the second mounting seat, the installation and positioning of the elastic part on the side of the gear ring part are achieved.

[0020] According to an embodiment of the present invention, the transmission part comprises: a transmission connection seat, a transmission support seat and a connection unit;

[0021] A boss is provided on one side of the transmission connection seat, and an inner ring of the boss is formed with inner ring teeth;

[0022] The transmission support seat and the transmission connection seat are plugged into each other through the boss;

[0023] A plurality of the connection units are arranged on the matching surfaces of the transmission connection seat and the transmission support seat to realize a detachable connection between the transmission connection seat and the transmission support seat;

[0024] Wherein, a plurality of the second mounting seats are evenly distributed on the outer rings of the transmission connecting seat and the transmission supporting seat along the circumferential direction.

[0025] Specifically, this embodiment provides an implementation of a transmission connecting seat, a transmission supporting seat and a connecting unit. By providing the transmission connecting seat, the transmission supporting seat and the connecting unit, the connection between the transmission part and the gear ring part is made more convenient.

[0026] It should be noted that the gear ring part and the transmission part are connected via an elastic part.

[0027] Furthermore, the inner ring teeth arranged on the inner ring of the boss realize the transmission connection between the running gear and the corresponding external gear, which facilitates the installation and removal of the running gear.

[0028] According to one embodiment of the present invention, the second mounting seat comprises: a first sub-mounting seat and a second sub-mounting seat;

[0029] A plurality of the first sub-mounting seats are uniformly distributed on the outer ring of the transmission connection seat along the circumferential direction and are arranged close to the other side of the transmission connection seat relative to the boss;

[0030] The plurality of second sub-mounting seats are evenly distributed on the outer ring of the transmission support seat along the circumferential direction, and are arranged close to a side of the transmission support seat away from the transmission connecting seat.

[0031] Specifically, this embodiment provides an implementation of a first sub-mounting seat and a second sub-mounting seat, by arranging multiple first sub-mounting seats in a ring shape on the side of the transmission connecting seat, and arranging multiple second sub-mounting seats in a ring shape on the side of the transmission supporting seat, thereby realizing the arrangement of the elastic part on both sides of the gear ring part.

[0032] It should be noted that the first mounting seat and the first sub-mounting seat are staggered on one side of the gear ring part, and the first mounting seat and the second sub-mounting seat are staggered on the other side of the gear ring part, forming a connection installation position of the elastic part on both sides of the gear ring part.

[0033] According to one embodiment of the present invention, at least part of the connection units are shear pins.

[0034] Specifically, this embodiment provides an implementation of a connection unit, which improves the stability of the connection between the transmission connection seat and the transmission support seat by configuring part of the connection unit as shear pins.

[0035] According to one embodiment of the present invention, the elastic part comprises: a first mounting plate, a second mounting plate and an elastic body;

[0036] The first mounting plate and the second mounting plate are connected to each other to form an L-shaped mounting assembly;

[0037] The two installation components are arranged at intervals;

[0038] The elastic body is arranged between the two mounting components;

[0039] Wherein, the first mounting plate is detachably connected to the first mounting seat or the second mounting seat;

[0040] The second mounting plate is connected to the elastic body.

[0041] Specifically, this embodiment provides an implementation of a first mounting plate, a second mounting plate and an elastomer. By arranging the first mounting plate, the second mounting plate and the elastomer, a ring-shaped elastic buffer structure composed of multiple elastomers is formed on the side of the tooth ring part.

[0042] Furthermore, the arrangement of the first mounting plate and the second mounting plate also enables the elastomer to be more conveniently disassembled and maintained. When an elastomer loses its elasticity or is damaged, maintenance and replacement can be achieved by simply disassembling the independent elastic part, thereby improving work efficiency.

[0043] According to an embodiment of the present invention, the elastic body is an elastic block made of rubber material.

[0044] Specifically, this embodiment provides an implementation method of an elastomer, which improves the ability of the running gear to transmit torque by setting the elastomer as an elastic block made of rubber material. At the same time, when the running gear is subjected to a certain offset load or impact, it can be effectively absorbed by the elastomer.

[0045] A bogie provided according to a second aspect of the present invention comprises a frame, a wheelset, an axle and the running gear structure of the rack-rail vehicle described above;

[0046] The axle is connected to the frame;

[0047] The wheelsets are arranged at both ends of the axle;

[0048] The running gear structure is arranged between the two wheel pairs and connected to the axle.

[0049] A rack rail vehicle provided according to a third aspect of the present invention has the running gear structure of the rack rail vehicle described above, or the bogie described above.

[0050] The above one or more technical solutions in the present invention have at least one of the following technical effects: a running gear structure, a bogie and a rack vehicle of a rack vehicle provided by the present invention solve the vibration and impact problems caused by unstable meshing during the running of the rack vehicle by adding a ring-shaped elastic part on the side of the running gear, avoids the damage to the on-board equipment caused by vibration, and improves the riding comfort.

[0051] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] Figure 1 This is one of the schematic diagrams of the assembly relationship of the running gear structure provided by the present invention;

[0054] Figure 2 This is the second schematic diagram of the assembly relationship of the running gear structure provided by the present invention;

[0055] Figure 3 yes Figure 2 AA sectional view of FIG.

[0056] Figure 4 It is a structural schematic diagram of the gear ring part in the running gear structure provided by the present invention;

[0057] Figure 5 This is one of the structural schematic diagrams of the transmission connecting seat in the running gear structure provided by the present invention;

[0058] Figure 6 This is the second structural schematic diagram of the transmission connecting seat in the running gear structure provided by the present invention;

[0059] Figure 7 It is a structural schematic diagram of a transmission support seat in the running gear structure provided by the present invention;

[0060] Figure 8 It is a schematic diagram of the structural relationship of the elastic part in the running gear structure provided by the present invention;

[0061] Fig. 9 This is one of the schematic diagrams of the assembly relationship between the power box, the support frame and the running gear structure in the running gear structure provided by the present invention;

[0062] Fig.10 This is the second schematic diagram of the assembly relationship between the power box, the support frame and the running gear structure in the running gear structure provided by the present invention;

[0063] Fig.11 This is the third schematic diagram of the assembly relationship between the power box, the support frame and the running gear structure in the running gear structure provided by the present invention;

[0064] Fig.12 It is a schematic diagram of the assembly relationship between the axle, the transmission gear and the second bearing in the running gear structure provided by the present invention;

[0065] Fig.13 This is one of the schematic diagrams of the assembly relationship of the adjustment components in the running gear structure provided by the present invention;

[0066] Fig.14 This is the second schematic diagram of the assembly relationship of the adjustment component in the running gear structure provided by the present invention;

[0067] Fig.15 This is the third schematic diagram of the assembly relationship of the adjustment components in the running gear structure provided by the present invention.

[0068] Reference numerals:

[0069] 10. Gear ring; 11. External gear teeth;

[0070] 20. Transmission part; 21. Transmission connection seat; 22. Transmission support seat; 23. Connection unit; 24. Boss;

[0071] 30. Elastic part; 31. First mounting plate; 32. Second mounting plate; 33. Elastic body;

[0072] 40. Bushing;

[0073] 50. A first mounting seat;

[0074] 60. Second mounting seat; 61. First sub-mounting seat; 62. Second sub-mounting seat;

[0075] 70. Power box; 71. Support frame; 72. Axle; 73. Wheel set; 74. Brake disc; 75. Brake cylinder; 76. Brake caliper; 77. Bushing; 78. Transmission gear;

[0076] 80. Adjustment assembly; 81. First bearing; 82. Second bearing; 83. Eccentric wheel; 84. Adjustment disk. DETAILED DESCRIPTION

[0077] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not 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.

[0078] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0079] In some specific embodiments of the present invention, Figures 1 to 15 As shown, the present invention provides a running gear structure of a rack rail vehicle, comprising: a gear ring portion 10, a transmission portion 20 and an elastic portion 30; the outer ring of the gear ring portion 10 is provided with outer gear teeth 11, and the outer gear teeth 11 are meshed with a rack set on the ground; the outer ring of the transmission portion 20 cooperates with the inner ring of the gear ring portion 10; a plurality of elastic portions 30 are uniformly distributed on the side of the gear ring portion 10 along the circumferential direction, and are respectively connected to the gear ring portion 10 and the transmission portion 20.

[0080] In detail, the present invention provides a running gear structure of a rack-and-pinion vehicle, which is used to solve the defects that the characteristics of gear and rack transmission cause greater impact and vibration, reduce riding comfort, and cause harm to on-board equipment. By adding a ring-shaped elastic portion 30 on the side of the running gear, the vibration and impact problems caused by unstable meshing during the running of the rack-and-pinion vehicle are solved, the harm to on-board equipment caused by vibration is avoided, and the riding comfort is improved.

[0081] In some possible embodiments of the present invention, a plurality of elastic parts 30 form an elastic component along the circumference of the gear ring part 10 ; two elastic components are symmetrically arranged on both sides of the gear ring part 10 along the axial direction.

[0082] Specifically, this embodiment provides an implementation method of the elastic part 30, by symmetrically arranging the elastic parts 30 on both sides of the axial direction of the ring gear part 10 along the shaft sleeve 77, and multiple elastic parts 30 are arranged in a ring shape, thereby improving the ability of the running gear to transmit torque, while reducing the eccentric load of the running gear and the impact of the gear meshing process, thereby realizing large torque transmission of the running gear and meeting the needs of rack-rail vehicles.

[0083] In a possible implementation manner, the provision of the elastic portion 30 increases the damping of the running gear, reduces the meshing noise between the gear and the rack, reduces the vibration to which the rack rail vehicle is subjected during travel, and improves riding comfort.

[0084] In a possible implementation, the two groups of elastic components are symmetrically arranged, which solves the need for the running gear to transmit very high torque when on a large slope.

[0085] In a possible implementation manner, each elastic component includes a plurality of elastic portions 30 arranged in a ring shape. This arrangement improves the uniformity of the load, so that the impact and vibration of the running gear can be better absorbed.

[0086] In a possible implementation, an elastic component consisting of a plurality of elastic parts 30 is disposed on the side of the gear ring part 10, thereby releasing radial space, allowing a larger transmission structure to be connected inside, thereby improving the performance of the transmission system.

[0087] In some possible embodiments of the present invention, the present invention further includes: a bushing 40 , which is disposed between the inner ring of the gear ring part 10 and the outer ring of the transmission part 20 to reduce the friction coefficient between the gear ring part 10 and the transmission part 20 .

[0088] Specifically, this embodiment provides an implementation of a bushing 40 . By providing the bushing 40 , the friction coefficient is reduced, thereby solving the friction problem when relative displacement occurs between the gear ring part 10 and the transmission part 20 .

[0089] In a possible embodiment, the bushing 40 is made of a self-lubricating material.

[0090] In a possible embodiment, the bushing 40 is made of a carbon-based material.

[0091] In a possible embodiment, the bushing 40 is a self-lubricating bushing.

[0092] In some possible embodiments of the present invention, it also includes: a first mounting seat 50 and a second mounting seat 60; the first mounting seat 50 is evenly distributed on the side of the gear ring part 10 along the circumferential direction; the second mounting seat 60 is evenly distributed on the outer ring of the transmission part 20 along the circumferential direction, and is staggered with the first mounting seat 50; wherein the elastic part 30 is detachably connected to the adjacent first mounting seat 50 and the second mounting seat 60 respectively.

[0093] Specifically, this embodiment provides an implementation of a first mounting seat 50 and a second mounting seat 60 , and through the provision of the first mounting seat 50 and the second mounting seat 60 , the installation and positioning of the elastic portion 30 on the side of the gear ring portion 10 is achieved.

[0094] In a possible embodiment, the first mounting seat 50 and the second mounting seat 60 are alternately arranged on the side of the gear ring portion 10, and the first mounting seat 50 and the second mounting seat 60 are provided with corresponding mounting holes and other connecting structures, and the elastic portion 30 is connected to the first mounting seat 50 and the second mounting seat 60 respectively by screws or other connecting components.

[0095] In a possible implementation manner, during the operation of the running gear, the gear ring portion 10 is impacted, and the elastic portion 30 provided on the first mounting seat 50 and the second mounting seat 60 is deformed to absorb the impact and vibration.

[0096] In some possible embodiments of the present invention, the transmission part 20 includes: a transmission connecting seat 21, a transmission support seat 22 and a connecting unit 23; a boss 24 is provided on one side of the transmission connecting seat 21, and the inner ring of the boss 24 is formed with inner ring teeth; the transmission support seat 22 and the transmission connecting seat 21 are plug-in matched through the boss 24; a plurality of connecting units 23 are provided on the mating surfaces of the transmission connecting seat 21 and the transmission support seat 22 to realize a detachable connection between the transmission connecting seat 21 and the transmission support seat 22; wherein, a plurality of second mounting seats 60 are evenly distributed along the circumferential direction on the outer rings of the transmission connecting seat 21 and the transmission support seat 22.

[0097] Specifically, this embodiment provides an implementation of a transmission connecting seat 21, a transmission support seat 22 and a connecting unit 23. By setting the transmission connecting seat 21, the transmission support seat 22 and the connecting unit 23, the connection between the transmission part 20 and the gear ring part 10 is more convenient.

[0098] It should be noted that the gear ring portion 10 and the transmission portion 20 are connected via the elastic portion 30 .

[0099] Furthermore, the inner ring teeth arranged on the inner ring of the boss 24 realize the transmission connection between the running gear and the corresponding external gear, which facilitates the installation and removal of the running gear.

[0100] In a possible implementation manner, corresponding mounting holes or screw holes are provided on the mating surfaces of the transmission connecting seat 21 and the transmission supporting seat 22, and the connecting parts cooperate with the mounting holes or screw holes to realize the connection between the transmission connecting seat 21 and the transmission supporting seat 22. In order to save space, the present invention does not describe this in too many details, and you can refer to the drawings and the settings in the related field.

[0101] In some possible embodiments of the present invention, the second mounting seat 60 includes: a first sub-mounting seat 61 and a second sub-mounting seat 62; a plurality of first sub-mounting seats 61 are evenly distributed along the circumferential direction on the outer ring of the transmission connecting seat 21, and are arranged close to the other side of the transmission connecting seat 21 relative to the boss 24; a plurality of second sub-mounting seats 62 are evenly distributed along the circumferential direction on the outer ring of the transmission support seat 22, and are arranged close to the side of the transmission support seat 22 away from the transmission connecting seat 21.

[0102] Specifically, this embodiment provides an implementation of a first sub-mounting seat 61 and a second sub-mounting seat 62, by arranging multiple first sub-mounting seats 61 in a ring shape on the side of the transmission connecting seat 21, and arranging multiple second sub-mounting seats 62 in a ring shape on the side of the transmission supporting seat 22, thereby realizing the arrangement of the elastic part 30 on both sides of the gear ring part 10.

[0103] It should be noted that the first mounting seat 50 and the first sub-mounting seat 61 are alternately arranged on one side of the toothed ring part 10, and the first mounting seat 50 and the second sub-mounting seat 62 are alternately arranged on the other side of the toothed ring part 10, forming a connection installation position of the elastic part 30 on both sides of the toothed ring part 10.

[0104] In a possible implementation manner, corresponding screw holes are respectively provided on the first sub-mounting seat 61 and the second sub-mounting seat 62 to achieve detachable connection between the elastic portion 30 and the adjacent first mounting seat 50 and first sub-mounting seat 61 , the first mounting seat 50 and the second sub-mounting seat 62 .

[0105] In some possible embodiments of the present invention, at least part of the connection units 23 are shear pins.

[0106] Specifically, this embodiment provides an implementation of a connection unit 23 , which improves the stability of the connection between the transmission connection seat 21 and the transmission support seat 22 by configuring a portion of the connection unit 23 as a shear pin.

[0107] In a possible implementation manner, the partial connection unit 23 is respectively connected to the transmission connection seat 21 and the transmission support seat 22 by means of threaded connection, so as to achieve a detachable connection between the transmission connection seat 21 and the transmission support seat 22 .

[0108] In a possible implementation manner, part of the connection unit 23 is plug-fitted with the transmission connection seat 21 and the transmission support seat 22 respectively by interference fit, transition fit, etc., so as to provide shear resistance to the transmission connection seat 21 and the transmission support seat 22.

[0109] In some possible embodiments of the present invention, the elastic part 30 includes: a first mounting plate 31, a second mounting plate 32 and an elastic body 33; the first mounting plate 31 and the second mounting plate 32 are connected to each other to form an L-shaped mounting assembly; the two mounting assemblies are arranged at intervals; the elastic body 33 is arranged between the two mounting assemblies; wherein the first mounting plate 31 is detachably connected to the first mounting seat 50 or the second mounting seat 60; the second mounting plate 32 is connected to the elastic body 33.

[0110] Specifically, this embodiment provides an implementation of a first mounting plate 31, a second mounting plate 32 and an elastomer 33. By setting the first mounting plate 31, the second mounting plate 32 and the elastomer 33, a ring-shaped elastic buffer structure composed of multiple elastomers 33 is formed on the side of the tooth ring part 10.

[0111] Furthermore, the arrangement of the first mounting plate 31 and the second mounting plate 32 also enables the elastomer 33 to be more conveniently disassembled and maintained. When one elastomer 33 loses its elasticity or is damaged, maintenance and replacement can be achieved by simply disassembling the independent elastic part 30, thereby improving work efficiency.

[0112] In a possible embodiment, corresponding through holes are provided on the first mounting plate 31 to correspond to the mounting holes on the first mounting seat 50 and the second mounting seat 60, and the first mounting plate 31 is connected to the first mounting seat 50 or the second mounting seat 60 through connecting parts such as screws and connecting pins.

[0113] In some possible embodiments of the present invention, the elastic body 33 is an elastic block made of rubber material.

[0114] Specifically, this embodiment provides an implementation of the elastomer 33. By setting the elastomer 33 as an elastic block made of rubber material, the ability of the running gear to transmit torque is improved. At the same time, when the running gear is subjected to a certain offset load or impact, it can be effectively absorbed by the elastomer 33.

[0115] In some specific embodiments of the present invention, the present scheme provides a bogie, including a frame, a wheelset 73, an axle 72 and the running gear structure of the above-mentioned rack-and-rail vehicle; the axle 72 is connected to the frame; the wheelset 73 is arranged at both ends of the axle 72; the running gear structure is arranged between the two wheelsets 73 and connected to the axle 72.

[0116] In some possible embodiments of the present invention, it also includes: a power box 70, a support frame 71, a bushing 77, a running gear and an adjustment assembly 80, wherein the running gear is the above-mentioned running gear structure; the gear box and the support frame 71 are arranged at intervals; the axle 72 passes through the gear box and the support frame 71 in sequence; the wheelset 73 is arranged at both ends of the axle 72; the bushing 77 is sleeved on the outside of the axle 72, passes through the support frame 71, and rotates with the support frame 71; the running gear is connected to the bushing 77 inside the support frame 71, and part of the running gear extends radially along the bushing 77 to the outside of the support frame 71 to achieve engagement with the rack set on the ground; the adjustment assembly 80 is rotatably sleeved on the outside of the bushing 77 and connected to the support frame 71 to achieve adjustment of the relative position between the running gear and the wheelset 73.

[0117] Specifically, this embodiment provides an implementation method of a driving device, which solves the problem of height matching between the running gear and the wheelset 73 after wear of the wheelset 73 by connecting the adjustment assembly 80 to the bushing 77 and the support frame 71, while reducing the unsprung mass, making it easier to adjust the relative position between the running gear structure and the wheelset 73.

[0118] In some possible embodiments of the present invention, the adjustment assembly 80 includes: a first bearing 81, a second bearing 82 and an eccentric wheel 83; the first bearing 81 and the second bearing 82 are arranged at an axial interval along the sleeve 77; the eccentric wheel 83 cooperates with the inner ring of the first bearing 81 and the outer ring of the second bearing 82 respectively; wherein, the outer ring of the first bearing 81 cooperates with the inner ring of the running gear structure; the inner ring of the second bearing 82 cooperates with the sleeve 77.

[0119] Specifically, this embodiment provides an implementation of a first bearing 81, a second bearing 82 and an eccentric wheel 83. By providing the first bearing 81, the second bearing 82 and the eccentric wheel 83, the eccentric wheel 83 is connected to the support frame 71, thereby reducing the unsprung mass.

[0120] Furthermore, the eccentric wheel 83 is arranged close to the running gear, and the relative position between the running gear and the wheelset 73 can be adjusted by adjusting the eccentric wheel 83 on one side, thereby solving the problem of the conventional need to adjust the eccentric structure from both sides at the same time to achieve the balance of the relative position adjustment between the running gear and the wheelset 73.

[0121] In a possible implementation manner, the first bearing 81 and the second bearing 82 are arranged so that the eccentric wheel 83 is rotationally connected to the shaft sleeve 77 and is also rotationally connected to the running gear.

[0122] In a possible implementation, initially, the running gear and the center of the wheel pair 73 can be set at the same height, and their relative positions can be fixed by corresponding positioning structures. After the rack vehicle has traveled for a period of time, the wheel pair 73 is worn, and the height of the running gear is also reduced synchronously. However, the tooth top of the rack on the track will not be lowered relative to the track surface. If the relative height of the running gear and the wheel pair 73 is not adjusted, there will be greater impact, vibration and noise problems during driving, which will pose a great safety hazard in the long run. If the wheel needs to continue to be used, the eccentric wheel 83 must be rotated to a certain angle while ensuring the normal meshing of the running gear and the rack on the ground, and then fixed by a corresponding structure. While the eccentric wheel 83 rotates around the center of the shaft sleeve 77, it drives the running gear on the shaft sleeve 77 to be raised relative to the wheel pair 73, thereby changing the relative height of the running gear and the wheel pair 73. The wheel pair 73 can be used continuously, and the service life of the wheel pair 73 can be extended by raising the running gear multiple times.

[0123] In a possible implementation, since the eccentric wheel 83 is arranged close to the running gear, the height of the running gear can be adjusted through the eccentric wheel 83 on one side, avoiding the conventional adjustment that requires adjusting the eccentric wheel 83 on both sides of the axle 72 at the same time to ensure the stability of the running gear adjustment.

[0124] In some possible embodiments of the present invention, the adjustment assembly 80 further includes: an adjustment disk 84 , and the adjustment disk 84 is connected to the eccentric wheel 83 to adjust the direction of the eccentric wheel 83 through the adjustment disk 84 .

[0125] Specifically, this embodiment provides an implementation of an adjustment disk 84 , and by providing the adjustment disk 84 , the adjustment of the eccentric wheel 83 is made more convenient.

[0126] In a possible implementation, the inner ring of the adjusting disk 84 is provided with inner ring teeth, and the outer ring of the eccentric wheel 83 is provided with outer ring teeth corresponding to the inner ring teeth of the adjusting disk 84. The adjusting disk 84 and the eccentric wheel 83 are meshed through the inner ring teeth and the outer ring teeth. In actual application, the rotation angle of the eccentric wheel 83 can be adjusted by rotating the adjusting disk 84.

[0127] In a possible implementation manner, corresponding adjustment holes are provided on the adjustment disk 84 to facilitate adjustment of the rotation angle of the adjustment disk 84 through the adjustment holes.

[0128] In a possible implementation manner, the outer ring of the adjustment disk 84 is provided with corresponding tooth grooves to facilitate applying force from the circumference of the adjustment disk 84 to adjust the rotation angle of the adjustment disk 84 .

[0129] In some possible embodiments of the present invention, two adjustment assemblies 80 are symmetrically arranged on both sides of the running gear along the axial direction of the shaft sleeve 77 .

[0130] Specifically, this embodiment provides an implementation method for setting the number of adjustment components 80. By setting the adjustment components 80 on both sides of the running gear, the eccentric wheel 83 can be adjusted from any side.

[0131] In some possible embodiments of the present invention, it also includes: a brake disc 74, a brake cylinder 75 and a brake caliper 76; the brake disc 74 is connected to the axle 72 and is arranged between the support frame 71 and the wheelset 73; the brake cylinder 75 is connected to the support frame 71; the brake caliper 76 is connected to the brake cylinder 75 and is arranged corresponding to the brake disc 74; wherein the brake cylinder 75 drives the brake caliper 76 to move so that the brake caliper 76 clamps the brake disc 74.

[0132] Specifically, this embodiment provides an implementation of a brake disc 74, a brake cylinder 75 and a brake caliper 76. By providing the brake disc 74, the brake cylinder 75 and the brake caliper 76, the braking of the running gear is achieved.

[0133] In a possible implementation, the brake cylinder 75 is connected to the support frame 71, which reduces the volume of the brake device and reduces the axial occupied space, thereby achieving the height inheritance of the power box 70, the support frame 71 and the brake device, and solving the space limitation problem of narrow track.

[0134] In a possible implementation manner, the brake disc 74 is connected to the axle 72 to form a disc brake structure, thereby improving the reliability of braking.

[0135] In some specific embodiments of the present invention, the present solution provides a rack-and-pinion vehicle having the running gear structure of the rack-and-pinion vehicle described above, or the bogie described above.

[0136] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0137] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "mode", "specific mode", or "some modes" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or mode are included in at least one embodiment or mode of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or mode. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or modes in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or modes described in this specification and the features of the different embodiments or modes, without contradiction.

[0138] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A running gear structure of a rack-rail vehicle, characterized in that: include: A gear ring portion, a transmission portion, an elastic portion, a first mounting seat and a second mounting seat; The outer ring of the gear ring is provided with external gear teeth, and the external gear teeth are meshed with a rack provided on the ground; The outer ring of the transmission part cooperates with the inner ring of the gear ring part; The plurality of elastic parts are uniformly distributed on the side of the gear ring part along the circumferential direction, and are respectively connected to the gear ring part and the transmission part; The first mounting seats are evenly distributed on the side of the gear ring portion along the circumferential direction; The second mounting seats are uniformly distributed on the outer ring of the transmission part along the circumferential direction and are staggered with the first mounting seats; Wherein, the elastic part is detachably connected to the adjacent first mounting seat and the second mounting seat respectively.

2. The running gear structure of a rack-rail vehicle according to claim 1, characterized in that: The plurality of elastic parts form an elastic component along the circumference of the gear ring part; The two elastic components are symmetrically arranged on both sides of the gear ring portion along the axial direction.

3. The running gear structure of a rack-rail vehicle according to claim 1, characterized in that: The invention also includes a bushing, which is arranged between the inner ring of the gear ring part and the outer ring of the transmission part to reduce the friction coefficient between the gear ring part and the transmission part.

4. The running gear structure of a rack-rail vehicle according to claim 1, characterized in that: The transmission part comprises: a transmission connection seat, a transmission support seat and a connection unit; A boss is provided on one side of the transmission connection seat, and an inner ring of the boss is formed with inner ring teeth; The transmission support seat and the transmission connection seat are plugged into each other through the boss; A plurality of the connection units are arranged on the matching surfaces of the transmission connection seat and the transmission support seat to realize a detachable connection between the transmission connection seat and the transmission support seat; Wherein, a plurality of the second mounting seats are evenly distributed on the outer rings of the transmission connecting seat and the transmission supporting seat along the circumferential direction.

5. The running gear structure of a rack-rail vehicle according to claim 4, characterized in that: The second mounting seat includes: a first sub-mounting seat and a second sub-mounting seat; A plurality of the first sub-mounting seats are uniformly distributed on the outer ring of the transmission connection seat along the circumferential direction and are arranged close to the other side of the transmission connection seat relative to the boss; The plurality of second sub-mounting seats are evenly distributed on the outer ring of the transmission support seat along the circumferential direction, and are arranged close to a side of the transmission support seat away from the transmission connecting seat.

6. The running gear structure of a rack-rail vehicle according to claim 4, characterized in that: At least some of the connection units are shear pins.

7. The running gear structure of a rack-rail vehicle according to any one of claims 1 to 6, characterized in that: The elastic part comprises: a first mounting plate, a second mounting plate and an elastic body; The first mounting plate and the second mounting plate are connected to each other to form an L-shaped mounting assembly; The two installation components are arranged at intervals; The elastic body is arranged between the two mounting components; Wherein, the first mounting plate is detachably connected to the first mounting seat or the second mounting seat; The second mounting plate is connected to the elastic body.

8. The running gear structure of a rack-rail vehicle according to claim 7, characterized in that: The elastic body is an elastic block made of rubber material.

9. A bogie, characterized in that: A running gear structure of a rack-type vehicle comprising a frame, a wheelset, an axle and the running gear structure of a rack-type vehicle according to any one of claims 1 to 8; The axle is connected to the frame; The wheelsets are arranged at both ends of the axle; The running gear structure is arranged between the two wheel pairs and connected to the axle.

10. A rack-and-rail vehicle, characterized in that: A running gear structure of a rack-rail vehicle having any one of claims 1 to 8, or a bogie according to claim 9.

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