Bogie and rail engineering vehicle

Abstract

The utility model discloses a bogie and a rail engineering vehicle, and relates to the technical field of rail vehicles. The bogie comprises a supporting assembly, a damping assembly and a locking assembly. Wherein the supporting assembly comprises a framework and at least two wheel pairs, and the wheel pairs are rotationally arranged at the bottom of the framework; the damping assembly comprises at least two transversely-arranged dampers, the dampers are oppositely arranged on the two sides of the framework, one ends of the dampers are connected with the framework through spherical hinges, and the other ends of the dampers are connected with a vehicle body through spherical hinges. The locking assembly comprises at least four supporting pieces and at least two tensioning pieces, the supporting pieces and the tensioning pieces are telescopic and are arranged on the framework in the vertical direction of the damping assembly, the bottom ends of the supporting pieces are opposite to axle boxes connected with the wheel pairs, two of the supporting pieces are used for locking or unlocking one wheel pair, and the tensioning pieces are oppositely arranged on the two sides of the framework. The bottom end of the tensioning piece is rotationally connected with the framework, and the top end of the tensioning piece is rotationally connected with the vehicle body. The bogie not only can keep stable during high-speed operation, but also has low-speed operation capability.

Description

Technical Field

[0001] The utility model relates to the technical field of rail vehicles, and more specifically, to a bogie. In addition, the utility model also relates to a rail engineering vehicle comprising the bogie. Background Art

[0002] At present, in order to reduce the labor intensity of railway workers, rail engineering vehicles are usually used to carry out maintenance operations on the tracks, such as replacing sleepers, rails, tightening spike bolts, etc. Rail engineering vehicles use internal combustion engines or hydraulic presses to provide power for the bogies, and drive the bogies to carry the vehicle body along the tracks quickly through mechanical structures. However, in order to complete the maintenance efficiently, rail engineering vehicles are often required to have a higher operating speed and be able to operate at low speeds at the same time.

[0003] In summary, how to improve the running speed of the bogie in the rail engineering vehicle while having the ability to operate at a low speed is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, an object of the present invention is to provide a bogie which can maintain stability during high-speed operation and has the ability to operate at low speeds.

[0005] Another object of the utility model is to provide a rail engineering vehicle comprising the bogie.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A bogie, comprising:

[0008] A support assembly includes a frame and at least two wheel pairs, wherein the wheel pairs are rotatably disposed at the bottom of the frame;

[0009] A shock absorbing assembly, comprising at least two laterally arranged shock absorbers, each of which is arranged on two sides of the frame opposite to each other, and one end of the shock absorber is connected to the frame through a ball joint, and the other end of the shock absorber is connected to the vehicle body through a ball joint;

[0010] A locking assembly comprises at least four support members and at least two tension members, wherein the support members and the tension members are both retractable and are arranged on the frame along the vertical direction of the shock absorbing assembly, wherein the bottom ends of the support members are arranged opposite to the axle box connected to the wheelset, wherein two of the support members are used to lock or unlock a wheelset, and each of the tension members is arranged opposite to each other on both sides of the frame, and the bottom ends of the tension members are rotatably connected to the frame, and the top ends of the tension members are rotatably connected to the vehicle body.

[0011] Preferably, the tensioning members are symmetrically arranged on both sides of the frame, and the tensioning members are located between the wheel pairs at both ends;

[0012] The support members are provided on the top of the wheelsets at both ends of the frame;

[0013] The shock absorbers are symmetrically arranged on both sides of the frame, and the tensioning member is located between the wheel pairs at both ends.

[0014] Preferably, the shock absorber is an anti-snake shock absorber.

[0015] Preferably, an elastic pad is provided on the inner surface of the ball head cover in the ball joint connected to the shock absorber.

[0016] Preferably, the frame is further provided with a driving assembly, which includes a motor and a reduction gearbox, wherein the output shaft of the motor is connected to the input end of the reduction gearbox, and the output end of the reduction gearbox corresponds to the rotating shaft in the wheelset.

[0017] Preferably, the frame is an H-shaped structure, and a first mounting seat and a second mounting seat are provided on the vertical side of the cross beam in the middle of the frame, the top of the first mounting seat has a hanging ear for hanging the motor, and the first mounting seat is fixed to the motor by bolts, and the second mounting seat is rotatably connected to the reduction box;

[0018] And or, the frame is a box-type structure, and the thickness of the ends of the longitudinal beams on both sides of the frame is smaller than the thickness of the middle part thereof.

[0019] Preferably, a center plate is provided at the center of the top of the frame, side rails are provided at the middle positions of the top surfaces on both sides of the frame, and the middle position of the crossbeam of the frame is recessed toward the bottom;

[0020] And / or, braking devices are provided on both sides of the frame.

[0021] Preferably, the bottom of the frame has inclined wedge assemblies arranged in groups, each of the inclined wedge assemblies includes two inclined wedge seats arranged opposite to each other to support the corresponding ends of the wheelset, and the inclined wedge seats include a guide portion, an inclined wedge portion and a first connecting portion arranged on the inclined wedge portion;

[0022] The ends of the wheelset are rotatably arranged on the frame through an axle box, and the axle box includes a box body and inclined wedges arranged on both sides of the box body, and the guide parts of each group of the inclined wedge seats are inserted into the corresponding plug-in holes between the inclined wedges and the box body, and the top inclined surface of the inclined wedge is fitted with the bottom inclined surface of the inclined wedge part, and the inclined wedge has a second connecting part, and connecting rods are inserted inside the first connecting part and the second connecting part to limit the position of the axle box.

[0023] Preferably, a first wear plate is provided on a vertical surface of the guide portion opposite to the inclined wedge, a second wear plate is provided on a vertical surface of the inclined wedge opposite to the box body, and the first wear plate is slidably matched with the second wear plate.

[0024] A rail engineering vehicle comprises the bogie provided by any one of the above items.

[0025] The bogie provided by the utility model has a support assembly used for supporting a shock absorbing assembly and a locking assembly, etc., wherein a frame is a main frame, a rotatable wheel pair is arranged below the frame, and each wheel pair is parallel, so that the bogie can move along a track. When in use, a vehicle body needs to be arranged above the frame, so that the bogie can carry the vehicle body.

[0026] The shock absorbing assembly is used to reduce the vibration of the vehicle body arranged above the frame. One or more shock absorbers are arranged on both sides of the frame. The shock absorbers are arranged horizontally, that is, arranged in a horizontal or nearly horizontal manner, and one end of the shock absorber is connected to the frame through a ball joint, and the other end is connected to the vehicle body through a ball joint, so that it can meet the multi-degree-of-freedom requirements during high-speed operation while reducing shock.

[0027] The locking assembly is used to lock or unlock the wheelset and the vehicle body to meet the needs of low-speed operation or high-speed operation, wherein the support member is arranged on the frame along the vertical direction of the shock-absorbing assembly, and its bottom end is opposite to the corresponding axle box in the corresponding wheelset. The movable end of the support member extends until its bottom end abuts the corresponding axle box, thereby achieving the locking of the corresponding axle box and the wheelset. Conversely, the movable end of the support member retracts to move away from the axle box abutted, thereby achieving the locking of the corresponding axle box and the wheelset, and four or more support members can lock or unlock two or more wheelsets; one or more tensioning members are arranged on the facades on both sides of the frame, and the tensioning members are arranged along the vertical direction of the shock-absorbing assembly, that is, they are arranged in a vertical manner, and one end of the tensioning member is hinged or pinned to rotate and connect to the frame, and the other end is hinged or pinned to rotate and connect to the vehicle body, thereby effectively preventing the vehicle body from rolling, twisting or nodding relative to the support assembly.

[0028] In summary, the bogie has shock absorbers, support members and tension members arranged relatively longitudinally along the support assembly, so that the bogie can maintain stability when running at high speed and also have the ability to operate at low speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0030] Figure 1 A schematic diagram of the structure of a specific embodiment provided by the utility model;

[0031] Figure 2 A top view of a specific embodiment provided by the utility model;

[0032] Figure 3 A side view of a specific embodiment provided by the utility model;

[0033] Figure 4 A schematic diagram of the structure of a specific embodiment of the present invention;

[0034] Figure 5 It is a schematic structural diagram of a box body and an inclined wedge according to a specific embodiment of the utility model.

[0035] Figure 1-Figure 5 , the reference numerals include:

[0036] 1 is a supporting assembly, 11 is a frame, 111 is a crossbeam, 112 is a longitudinal beam, 113 is a first mounting seat, 1131 is a hanging ear, 114 is a second mounting seat, 12 is a wheelset, 2 is a shock absorbing assembly, 21 is a shock absorber, 3 is a locking assembly, 31 is a supporting member, 32 is a tensioning member, 4 is a driving assembly, 41 is a motor, 42 is a reduction box, 5 is an inclined wedge assembly, 51 is an inclined wedge seat, 511 is a guiding part, 512 is an inclined wedge part, 61 is a box body, 62 is an inclined wedge, 7 is a center plate, 8 is a side ride, 9 is a braking device, and 10 is a vehicle body. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The core of the utility model is to provide a bogie, which can maintain stability during high-speed operation and has the ability to operate at low speeds. Another core of the utility model is to provide a rail engineering vehicle including the bogie.

[0039] Please refer to Figure 1The utility model provides a bogie, comprising a supporting assembly 1, a shock absorbing assembly 2 and a locking assembly 3. Among them, the support assembly 1 includes a frame 11 and at least two wheel pairs 12, and the wheel pairs 12 are rotatably arranged at the bottom of the frame 11; the shock absorbing assembly 2 includes at least two laterally arranged shock absorbers 21, each shock absorber 21 is relatively arranged on both sides of the frame 11, and one end of the shock absorber 21 is connected to the frame 11 through a ball joint, and the other end of the shock absorber 21 is connected to the vehicle body 10 through a ball joint; the locking assembly 3 includes at least four support members 31 and at least two tensioning members 32, both of which are retractable and arranged on the frame 11 along the vertical direction of the shock absorbing assembly 2, and the bottom end of the support member 31 is arranged opposite to the axle box connected to the wheel pair 12, wherein two support members 31 are used to lock or unlock a wheel pair 12, and each tensioning member 32 is relatively arranged on both sides of the frame 11, and the bottom end of the tensioning member 32 is rotatably connected to the frame 11, and the top end of the tensioning member 32 is rotatably connected to the vehicle body 10.

[0040] The support assembly 1 is used to support the shock absorbing assembly 2 and the locking assembly 3, etc. Figure 1 As shown, the frame 11 is the main frame, and a rotatable wheel pair 12 is arranged below the frame 11, and each wheel pair 12 is parallel, so that the bogie can move along the track. When in use, it is necessary to arrange the car body 10 above the frame 11, so that the bogie can carry the car body 10.

[0041] The shock absorbing assembly 2 is used to reduce the vibration of the vehicle body 10 disposed above the frame 11. Figure 1 and Figure 2 As shown, one or more shock absorbers 21 are arranged on both sides of the frame 11. The shock absorbers 21 are arranged horizontally, that is, arranged in a horizontal or nearly horizontal manner, and one end of the shock absorber 21 is connected to the frame 11 through a ball joint, and the other end is connected to the vehicle body 10 through a ball joint, so that it can meet the multi-degree-of-freedom requirements during high-speed operation while achieving shock absorption.

[0042] Optionally, two shock absorbers 21 are provided on both sides of the frame 11, and the two shock absorbers 21 on the side of the frame 11 are respectively close to the two ends of the frame 11, or Figure 1 and Figure 2 As shown, a shock absorber 21 is disposed on both sides of the frame 11 , and each shock absorber 21 on both sides of the frame 11 is close to the middle position of the frame 11 .

[0043] The locking assembly 3 is used to lock or unlock the wheelset 12 and the vehicle body 10 to meet the needs of low-speed operation or high-speed operation, such as Figures 1 to 3As shown, the support member 31 is arranged on the frame 11 along the vertical direction of the shock absorbing assembly 2. It can be realized that a through hole is opened on the frame 11 along the longitudinal direction, and each support member 31 passes through the corresponding through hole. The support member 31 and the frame 11 can be flange-connected or hinged, and the bottom end thereof is opposite to the corresponding axle box in the corresponding wheelset 12. The movable end of the support member 31 extends until the bottom end thereof abuts against the corresponding axle box, thereby realizing the locking of the corresponding axle box and the wheelset 12. Conversely, the movable end of the support member 31 retracts to move away from the axle box abutted against, thereby realizing the corresponding The axle box and the wheelset 12 are locked, and four or more support members 31 can lock or unlock two or more wheelsets 12; one or more tension members 32 are arranged on the facades on both sides of the frame 11, and the tension members 32 are arranged vertically along the shock absorbing assembly 2, that is, arranged in a vertical manner, and one end of the tension member 32 is hinged or pinned to rotate and connect the frame 11, and the other end is hinged or pinned to rotate and connect the vehicle body 10, thereby effectively preventing the vehicle body 10 from rolling, twisting or nodding relative to the support assembly 1.

[0044] Optionally, four support members 31 are provided for locking the wheelsets 12 located at both ends of the frame 11, that is, a support member 31 is provided above each axle box connected to the wheelsets 12 at both ends of the frame 11, or six support members 31 are provided for locking the two wheelsets 12 at the ends of the frame 11 and a wheelset 12 located in the middle, and each support member 31 is provided above each axle box connected to the corresponding wheelset 12.

[0045] Optionally, two tensioning members 32 are provided on both sides of the frame 11, and the two tensioning members 32 on the sides of the frame 11 are respectively close to the two ends of the frame 11, or, one tensioning member 32 is provided on both sides of the frame 11, and the tensioning members 32 on both sides of the frame 11 are close to the middle position of the frame 11.

[0046] It is worth noting that when the tension member 32 and the shock absorber 21 are located in the same length section of the frame 11, Figure 1 As shown, this is achieved by lengthening the mounting seat connected to the outer one.

[0047] It should be noted that there is no limitation on the types of the shock absorber 21 , the support member 31 , and the tension member 32 , such as hydraulic, inflatable or other retractable structures, as long as the above functions can be achieved.

[0048] In summary, the bogie is provided with the shock absorber 21, the support member 31 and the tension member 32 relatively longitudinally along the support assembly 1, so that the bogie can maintain stability when running at high speed and also have the ability to operate at low speed.

[0049] In some embodiments, the tensioning members 32 are symmetrically arranged on both sides of the frame 11, and the tensioning members 32 are located between the wheelsets 12 at both ends; in some embodiments, the tops of the wheelsets 12 at both ends of the frame 11 are provided with support members 31; in some embodiments, the shock absorbers 21 are symmetrically arranged on both sides of the frame 11, and the tensioning members 32 are located between the wheelsets 12 at both ends. Figure 1 and Figure 2 As shown, it is beneficial to improve the vibration resistance of the bogie and has higher stability.

[0050] On the basis of the above-mentioned embodiment, the shock absorber 21 is an anti-snake shock absorber 21. Such a configuration further improves the stability and vibration resistance of the bogie and facilitates manufacturing.

[0051] On the basis of the above-mentioned embodiment, an elastic pad is provided on the inner surface of the ball head cover in the ball joint connected to the shock absorber 21, and an elastic pad is provided inside the ball joint where the shock absorber 21 cooperates with the car body 10. The elastic pad can be a rubber pad or a silicone pad, etc. Such a setting is beneficial to improving the vibration resistance of the bogie and is beneficial to meeting the degree of freedom required by the car body 10 when the bogie runs along the track.

[0052] On the basis of the above embodiment, the frame 11 is further provided with a driving assembly 4, which includes a motor 41 and a reduction gearbox 42, wherein the output shaft of the motor 41 is connected to the input end of the reduction gearbox 42, and the output end of the reduction gearbox 42 is the rotating shaft in the corresponding wheelset 12.

[0053] like Figure 1 and Figure 2 As shown, the axle of the wheelset 12 in the bogie is driven by the connected reduction box 42, and the reduction box 42 is driven by the motor 41. With this arrangement, the steering angle is more environmentally friendly.

[0054] It should be noted that the connection between the reduction box 42 and the rotating shaft, and the connection between the motor 41 and the reduction box 42 are both existing technologies and will not be described in detail here.

[0055] In other embodiments, the driving assembly 4 includes a hydraulic motor and a reduction gearbox 42 , the rotating output shaft of the motor is connected to the input end of the reduction gearbox 42 , and the output end of the reduction gearbox 42 is connected to the rotating shaft of the corresponding wheel set 12 .

[0056] On the basis of the above embodiment, the frame 11 is an H-shaped structure, and the vertical side of the middle cross beam 111 of the frame 11 is provided with a first mounting seat 113 and a second mounting seat 114. The top of the first mounting seat 113 has a hanging ear 1131 for hanging the motor 41, and the first mounting seat 113 is fixed to the motor 41 by bolts, and the second mounting seat 114 is rotatably connected to the reduction box 42.

[0057] like Figure 4As shown, the crossbeam 111 of the frame 11 is used to fix the motor 41, the reduction box 42, etc. Specifically, the motor 41 is fixed by the first mounting seat 113, the top surface of the first mounting seat 113 has a vertical rod-shaped or horizontal rod-shaped structure or other protrusions as the hanging ears 1131, and at least four through holes are opened along the thickness direction of the first mounting seat 113, that is, the direction perpendicular to the length of the crossbeam 111, for connecting with the housing flange of the motor 41 through bolts. During assembly, the motor 41 is first hung on the first mounting seat 113, and then the first mounting seat 113 and the motor 41 are fixedly connected by bolts; the reduction box 42 is fixed by the second mounting seat 114, and the second mounting seat 114 is opened with a through hole parallel to the length direction of the crossbeam 111, for realizing rotational connection with the connection structure outside the housing of the reduction box 42 through a pin shaft. Such a setting is conducive to protecting the motor 41 and is conducive to the drive component 4 meeting the degree of freedom required during operation.

[0058] In some embodiments, the frame 11 is a box-type structure, and the thickness of the ends of the longitudinal beams 112 on both sides of the frame 11 is smaller than the thickness of the middle portion thereof.

[0059] like Figure 4 As shown, the cross beams 111 and the side beams in the frame 11 are all box-type structures. Specifically, each beam of the frame 11 is composed of an upper cover plate at the top, a lower cover plate at the bottom, and a web plate welded to connect the upper cover plate and the lower cover plate at adjacent sides, that is, each beam of the frame 11 is a hollow tubular structure. It is worth noting that the upper cover plate and the lower cover plate can be an integral flat plate structure, or can be spliced ​​together by steel plates of different lengths or thicknesses.

[0060] With such arrangement, the strength of the frame 11 is relatively high, and the thickness at both ends of the side beam is smaller than the thickness in the middle thereof. With such arrangement, the strength requirement is met, and the weight of the frame 11 is relatively light, thereby realizing a lightweight design. Furthermore, the frame 11 is convenient for setting the first mounting seat 113, the second mounting seat 114 and the like for mounting mounting seats of various components.

[0061] On the basis of the above embodiment, a center plate 7 is provided at the center of the top of the frame 11, side plates 8 are provided at the middle positions of the top surfaces on both sides of the frame 11, and the middle position of the cross beam 111 of the frame 11 is recessed toward the bottom, such as Figure 1 As shown, a center plate 7 is arranged at the top of the center position of the frame 11, and side bearings are arranged on both sides of the frame 11, which can not only realize the supporting effect on the vehicle body 10, but also help to assist the stable rotation of the vehicle body 10 when needed; wherein the middle part of the cross beam 111 in the H-shaped frame 11 is concave, so that the center plate 7 and the side bearings 8 can cooperate to stably support the vehicle body 10. With such an arrangement, the vertical height of the frame 11 is relatively small, which is conducive to realizing a miniaturized design.

[0062] In some embodiments, brake devices 9 are provided on both sides of the frame 11. Figure 1As shown, the braking devices 9 on both sides of the frame 11 are used to brake the corresponding wheel sets 12, which is beneficial to the safety of the bogie.

[0063] It should be noted that the number of the braking devices 9 is not limited as long as the braking of the frame 11 can be achieved.

[0064] On the basis of any of the above embodiments, the bottom of the frame 11 has a group of inclined wedge assemblies 5, each of which includes two inclined wedge seats 51 arranged opposite to each other to support the corresponding ends of the wheelset 12, and the inclined wedge seats 51 include a guide portion 511, an inclined wedge portion 512 and a first connecting portion provided on the inclined wedge portion 512; the ends of the wheelset 12 are rotatably arranged on the frame 11 through an axle box, and the axle box includes a box body 61 and inclined wedges 62 provided on both sides of the box body 61, and the guide portion 511 of each group of inclined wedge seats 51 is inserted into the plug-in hole between the corresponding inclined wedge 62 and the box body 61, and the top inclined surface of the inclined wedge 62 is fitted with the bottom inclined surface of the inclined wedge portion 512, and the inclined wedge 62 has a second connecting portion, and connecting rods are inserted into the first connecting portion and the second connecting portion to limit the position of the axle box.

[0065] like Figure 3 As shown, the frame 11 and the wheelset 12 are matched through the wedge seat 51, the axle box and the wedges 62 on both sides of the axle box. Specifically, as shown in FIG. Figure 4 As shown, a pair of inclined wedge seats 51 are arranged on the frame 11, wherein two opposing inclined wedge seats 51 are used to support one end of a wheelset 12, and a guide portion 511 in the inclined wedge seat 51 is a vertical sheet structure or a frame structure, etc., and an angle between the bottom surface of the inclined wedge portion 512 and the vertical direction is an acute angle or an obtuse angle, and the first connecting portion is located at a protruding structure of the inclined wedge portion 512 facing outward, that is, located at a side of the inclined wedge portion 512 away from the wheelset 12.

[0066] Usually the wheelset 12 is arranged on the frame 11 through an axle box, such as Figure 5 As shown, the box body 61 of the axle box is a rectangular structure and can be inserted into the space between the relative inclined wedge seats 51; inclined wedges 62 are arranged on both sides of the box body 61, and a gap is left between the inclined wedge 62 and the box body 61 for the guide part 511 to be inserted, and the auxiliary box body 61 is successfully inserted between the relative inclined wedge seats 51. The angle between the top surface of the inclined wedge 62 and the vertical direction is an acute angle or an obtuse angle. A groove or a through hole is provided on the side of the inclined wedge 62 facing the inside as a second connection part, and the second connection part is used to connect the first connection part. When in use, after the box body 61 is inserted into the middle of the relative inclined wedge seats 51, the top surface of the inclined wedge 62 fits the bottom surface of the inclined wedge part 512, and the first connection part is inserted into the second connection part. Such a configuration is conducive to the smooth connection of the box body 61 with the frame 11, and has high seismic resistance.

[0067] Furthermore, the box body 61 has support parts at the bottom of both sides of the inclined wedge part 512 , the support parts are opposite to the corresponding inclined wedge part 512 , and a shock-absorbing spring is arranged between the opposite support parts and the inclined wedge part 512 .

[0068] Based on the above embodiment, a first wear plate is provided on the vertical surface of the guide portion 511 opposite to the inclined wedge 62, and a second wear plate is provided on the vertical surface of the inclined wedge 62 opposite to the box body 61, and the first wear plate and the second wear plate are slidably matched.

[0069] A first wear plate is provided on the side of the guide portion 511 opposite to the inclined wedge 62, and a groove may be provided on the side, in which the first wear plate is interference fit into the groove, or the device may be adhesively connected, etc. A second wear plate is provided on the side of the inclined wedge 62 opposite to the guide portion 511, and a through hole may be provided on the side, and a columnar protrusion may be provided on one side of the second wear plate, in which the columnar protrusion is interference fit into the through hole, or a groove may be provided on the side, in which the second wear plate is interference fit into the groove.

[0070] After assembly, the guide portion 511 and the wedge 62 are slidably matched via the first wear plate and the second wear plate. Such an arrangement is beneficial to improving the stability between the wheelset 12 and the frame 11 .

[0071] It should be noted that the type of the first wear plate and the type of the second wear plate may be the same or different, as long as the above functions can be achieved.

[0072] In addition to the above-mentioned bogie, the present invention also provides a rail engineering vehicle including the bogie disclosed in the above-mentioned embodiment. For the structures of other parts of the rail engineering vehicle, please refer to the prior art and will not be described in detail herein.

[0073] It should be noted that the relational terms such as "first" and "second" mentioned above are merely used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities; the "upper surface, lower surface, top, bottom" and the directional words "upper, lower, left, right" mentioned above are all defined based on the drawings in the specification.

[0074] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0075] The bogie and rail engineering vehicle provided by the utility model are introduced in detail above. Specific examples are used in this article to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A bogie, characterized in that: include: A support assembly (1) comprises a frame (11) and at least two wheel pairs (12), wherein the wheel pairs (12) are rotatably arranged at the bottom of the frame (11); A shock absorbing assembly (2) comprising at least two laterally arranged shock absorbers (21), each of the shock absorbers (21) being arranged on two sides of the frame (11) opposite to each other, and one end of the shock absorber (21) being connected to the frame (11) via a ball joint, and the other end of the shock absorber (21) being connected to the vehicle body (10) via a ball joint; A locking assembly (3) comprises at least four support members (31) and at least two tension members (32), wherein the support members (31) and the tension members (32) are both retractable and arranged on the frame (11) along the vertical direction of the shock absorbing assembly (2), wherein the bottom end of the support member (31) is arranged opposite to the axle box connected to the wheelset (12), wherein two support members (31) are used to lock or unlock a wheelset (12), and each tension member (32) is arranged opposite to each other on two sides of the frame (11), and the bottom end of the tension member (32) is rotatably connected to the frame (11), and the top end of the tension member (32) is rotatably connected to the vehicle body (10).

2. The bogie according to claim 1, characterized in that: The tensioning member (32) is symmetrically arranged on both sides of the frame (11), and the tensioning member (32) is located between the wheel pairs (12) at both ends; The support members (31) are provided on the tops of the wheel sets (12) at both ends of the frame (11); The shock absorbers (21) are symmetrically arranged on both sides of the frame (11), and the tensioning member (32) is located between the wheel pairs (12) at both ends.

3. The bogie according to claim 1, characterized in that: The shock absorber (21) is an anti-snake shock absorber (21).

4. The bogie according to claim 1, characterized in that: An elastic pad is provided on the inner surface of a ball head cover in a ball joint connected to the shock absorber (21).

5. The bogie according to claim 1, characterized in that: The frame (11) is also provided with a driving assembly (4), the driving assembly (4) comprising a motor (41) and a reduction box (42), the output shaft of the motor (41) being connected to the input end of the reduction box (42), and the output end of the reduction box (42) corresponding to the rotating shaft in the wheelset (12).

6. The bogie according to claim 5, characterized in that: The frame (11) is an H-shaped structure, and a first mounting seat (113) and a second mounting seat (114) are provided on the vertical side of the cross beam (111) in the middle of the frame (11), the top of the first mounting seat (113) is provided with a hanging ear (1131) for hanging the motor (41), and the first mounting seat (113) and the motor (41) are fixed by bolts, and the second mounting seat (114) is rotatably connected to the reduction box (42); And or, the frame (11) is a box-type structure, and the thickness of the ends of the longitudinal beams (112) on both sides of the frame (11) is smaller than the thickness of the middle portion thereof.

7. The bogie according to claim 6, characterized in that A center plate (7) is provided at the center of the top of the frame (11), side rails (8) are provided at the middle positions of the top surfaces on both sides of the frame (11), and the middle position of the cross beam (111) of the frame (11) is recessed toward the bottom; And / or, braking devices (9) are provided on both sides of the frame (11).

8. The bogie according to any one of claims 1 to 7, characterized in that: The bottom of the frame (11) has inclined wedge assemblies (5) arranged in groups, each of the inclined wedge assemblies (5) comprises two inclined wedge seats (51) arranged opposite to each other to support corresponding ends of the wheelset (12), and the inclined wedge seats (51) comprise a guide portion (511), an inclined wedge portion (512) and a first connecting portion arranged on the inclined wedge portion (512); The ends of the wheelset (12) are rotatably arranged on the frame (11) through an axle box, the axle box comprises a box body (61) and inclined wedges (62) arranged on both sides of the box body (61), the guide parts (511) of each group of the inclined wedge seats (51) are inserted into the corresponding plug-in holes between the inclined wedges (62) and the box body (61), the top inclined surface of the inclined wedge (62) is fitted with the bottom inclined surface of the inclined wedge part (512), the inclined wedge (62) has a second connecting part, and connecting rods are inserted into the first connecting part and the second connecting part to limit the position of the axle box.

9. The bogie according to claim 8, characterized in that A first wear plate is provided on the vertical surface of the guide portion (511) opposite to the inclined wedge (62), and a second wear plate is provided on the vertical surface of the inclined wedge (62) opposite to the box body (61), and the first wear plate and the second wear plate are slidably matched.

10. A rail engineering vehicle, characterized in that: A bogie comprising the bogie described in any one of claims 1 to 9.

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