Three-axle bogie of railway locomotive

Abstract

The utility model discloses a railway locomotive three-axle bogie which comprises a framework, the framework comprises longitudinal beams and a cross beam assembly, the cross beam assembly is vertically fixed between two groups of longitudinal beams, an axle assembly is arranged in the framework, the axle assembly is rotatably arranged on the longitudinal beams, the axle assembly comprises a first axle, a second axle and a third axle, and the first axle is connected with the second axle. Metal wheels are fixedly arranged on the two sides of the first axle and the two sides of the third axle, rubber wheels are fixedly arranged on the two sides of the second axle, a power assembly is arranged in the framework, and the power assembly is rotationally connected with the axle assembly. The front metal wheel and the rear metal wheel are arranged to mainly bear loads and provide friction force at the same time, the rubber wheel in the middle position mainly provides friction force and bear loads at the same time, and on the premise that the size and power of the tractor are not increased, it is guaranteed that the tractor can bear large weight, large friction force can be provided, and the tractor is high in practicability. The device is suitable for bearing and dragging heavy goods in narrow spaces or factories.

Description

Technical Field

[0001] This utility model relates to a locomotive bogie, specifically a three-axle railway locomotive bogie. Background Technology

[0002] Three-axle bogies are an important component of railway locomotives, typically used in freight or shunting locomotives. These bogies consist of several key parts, including the frame, wheelsets, axle boxes, suspension system, and traction system. The characteristic of a three-axle bogie is that it has three wheelsets, offering greater load-bearing capacity and higher stability compared to a two-axle bogie. Due to these advantages, three-axle bogies are particularly suitable for heavy-haul transportation, effectively improving transport efficiency and safety.

[0003] Sometimes, three-axle bogies may need to carry heavy equipment or tow heavy locomotives. Although three-axle bogies have strong traction capabilities, slippage will occur if the traction force exceeds the friction between the drive wheels and the rails, requiring operators to add counterweights to the tractor. Especially when traveling on slopes, in addition to overcoming the friction between the drive wheels and the rails, it is also necessary to overcome the gravitational component of the tractor, and additional force is needed to provide forward acceleration. Therefore, to tow heavier locomotives, the tractor's counterweight must be increased, and the tractor's power must be enhanced, inevitably requiring a larger tractor size. This leads to unnecessary waste of resources and is unsuitable for use in confined spaces or within factory areas. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art, and thus propose a three-axle bogie for railway locomotives. This invention uses two sets of metal wheels at the front and rear to primarily bear the load and provide friction, while a rubber wheel in the middle primarily provides friction and also bears the load. Without increasing the size and power of the tractor, it ensures that the tractor can bear a large weight while providing significant friction, making it suitable for carrying heavy loads in confined spaces or factory areas.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A three-axle bogie for railway locomotives includes a frame comprising longitudinal beams and crossbeam assemblies. The crossbeam assemblies are vertically fixed between two sets of longitudinal beams. An axle assembly is disposed within the frame, comprising a first axle, a second axle, and a third axle. The first, second, and third axles are rotatably mounted on the longitudinal beams. Metal wheels are fixedly mounted on both sides of the first and third axles to bear heavier loads. Rubber wheels are fixedly mounted on both sides of the second axle to provide greater friction for the bogie. Three sets of power assemblies are disposed inside the frame, and the three sets of power assemblies are rotatably connected to the first, second, and third axles respectively. Both the metal wheels and the rubber wheels can provide traction power.

[0007] Preferably, the longitudinal beam is provided with a first convex groove, a second convex groove and a third convex groove, and an axle fixing plate is provided in the first convex groove, the second convex groove and the third convex groove. The first axle, the second axle and the third axle are respectively rotatably mounted on the three sets of axle fixing plates. Axle fixing members are provided on both sides of the first axle, the second axle and the third axle. The axle fixing members are fixed to the outer side of the axle fixing plate by bolts.

[0008] Preferably, shock absorbers are installed at the locations where the first axle, second axle, and third axle connect to the longitudinal beam to reduce vibration and impact on the wheels and frame, maintain the stability of the tractor's operation, and improve the service life of the components.

[0009] Preferably, the crossbeam assembly includes a first crossbeam, a second crossbeam, a third crossbeam, a fourth crossbeam, a fifth crossbeam, and a sixth crossbeam. The first, second, third, fourth, fifth, and sixth crossbeams are all fixedly disposed between two sets of longitudinal beams. The power assembly includes a motor, a motor mounting bracket, a drive gear, and a driven gear. The three motors are respectively fixed to the second, third, and fifth crossbeams via the motor mounting bracket. The drive gear is fixed to the motor shaft, and the driven gears are respectively fixed to the first, second, and third axles. The drive gear and the driven gear mesh with each other to realize the power transmission of the bogie.

[0010] Preferably, two brake discs are symmetrically arranged on the first axle, the second axle, and the third axle, and two brake components are symmetrically arranged on the first crossbeam, the fourth crossbeam, and the sixth crossbeam. The number of brake components is the same as that of the brake discs, and their positions correspond. Each axle is equipped with a brake assembly to provide good braking capability for the bogie. Furthermore, the symmetrical arrangement of the brake discs improves the stability of the bogie braking.

[0011] Preferably, the longitudinal beam is provided with a first groove and a second groove, and a stabilizing component is provided above the first groove and the second groove. The stabilizing component includes a lower chassis, an air suspension and a transition plate. The lower chassis is fixed above the first groove and the second groove respectively by bolts. The transition plate is fixedly connected to the lower chassis by bolts. The air suspension is provided between the lower chassis and the transition plate.

[0012] Preferably, a radar detection component is provided between the first and sixth crossbeams to provide collision warning.

[0013] Preferably, a hydraulic lifting mechanism is provided at the second axle, which can raise the rubber wheel when the bogie traction force is sufficient, so that traction is only achieved through the metal wheel.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model sets two sets of metal wheels at the front and rear to mainly bear the load and provide friction, while the rubber wheel in the middle position mainly provides friction and bears the load. Without increasing the size and power of the tractor, it can ensure that the tractor can bear a large weight and provide a large friction force. It is suitable for carrying and towing heavy goods in narrow spaces or factory areas.

[0016] 2. This utility model reduces the vibration and impact on the wheels and frame by installing shock absorbers at the locations where the first axle, second axle, and third axle connect to the longitudinal beam, thereby maintaining the stability of the tractor's operation and improving the service life of the components.

[0017] 3. This utility model has three shafts with separate power components. Both the metal wheel and the rubber wheel have traction force. The power components can be turned on and off as needed, saving resources and reducing costs.

[0018] 4. Each axle of this utility model is equipped with a brake assembly to provide good braking capability for the bogie, and the brake discs are symmetrically arranged to improve the stability of bogie braking and improve the safety of bogie operation.

[0019] 5. This utility model improves the safety of bogie operation by setting up radar detection components.

[0020] 6. This utility model, by setting a hydraulic lifting mechanism at the second axle, can raise the rubber wheel when the bogie traction force is sufficient, and improve the service life of the rubber wheel by relying solely on the metal wheel for traction. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 Appendix to this utility model Figure 1 Enlarged view of a portion of point A inside.

[0023] The components include: 1. Longitudinal beam; 101. First protrusion; 102. First groove; 103. Second protrusion; 104. Second groove; 105. Third protrusion; 106. Axle fixing plate; 2. Crossbeam assembly; 201. First crossbeam; 202. Second crossbeam; 203. Third crossbeam; 204. Fourth crossbeam; 205. Fifth crossbeam; 206. Sixth crossbeam; 3. Axle assembly; 301. First axle; 302. Second axle; 303. Third axle; 304. Axle fixing component; 4. Brake component; 5. Brake disc; 6. Metal wheel; 7. Rubber wheel; 8. Motor; 9. Lower chassis; 10. Air suspension; 11. Transition plate; 12. Radar detection component; 13. Drive gear; 14. Driven gear; 15. Motor fixing component; 16. Shock absorber. Detailed Implementation

[0024] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0025] Example 1, such as Figure 1 and Figure 2 As shown, a three-axle bogie for a railway locomotive includes a frame, which comprises longitudinal beams 1 and crossbeam assemblies 2. The crossbeam assemblies 2 are vertically fixed between two sets of longitudinal beams 1. An axle assembly 3 is disposed within the frame. The axle assembly 3 includes a first axle 301, a second axle 302, and a third axle 303. The first axle 301, the second axle 302, and the third axle 303 are rotatably mounted on the longitudinal beams 1. Metal wheels 6 are fixedly disposed on both sides of the first axle 301 and the third axle 303, which can bear heavier loads. Rubber wheels 7 are fixedly disposed on both sides of the second axle 302, which provides greater friction for the bogie. Three sets of power assemblies are disposed inside the frame, and the three sets of power assemblies are rotatably connected to the first axle 301, the second axle 302, and the third axle 303, respectively. Both the metal wheels 6 and the rubber wheels 7 can provide traction power.

[0026] like Figure 1As shown, the longitudinal beam 1 is provided with a first protrusion 101, a second protrusion 103 and a third protrusion 105. Axle fixing plates 106 are provided in the first protrusion 101, the second protrusion 103 and the third protrusion 105. The first axle 301, the second axle 302 and the third axle 303 are respectively rotatably mounted on the three sets of axle fixing plates 106. Axle fixing members 304 are provided on both sides of the first axle 301, the second axle 302 and the third axle 303. The axle fixing members 304 are fixed to the outer side of the axle fixing plate 106 by bolts.

[0027] In Example 2, the rubber wheel 7 can also adopt other structural settings, which requires changing the structure of the crossbeam assembly 2. It is necessary to ensure that the metal wheel 6 and the rubber wheel 7 are located in the same straight line, which also falls within the scope of protection of this utility model.

[0028] like Figure 1 As shown, shock absorbers 16 are installed at the positions where the first axle 301, the second axle 302, and the third axle 303 connect with the longitudinal beam 1 to reduce the vibration and impact on the wheels and frame, maintain the stability of the tractor's operation, and improve the service life of the components.

[0029] like Figure 1 and Figure 2 As shown, the crossbeam assembly 2 includes a first crossbeam 201, a second crossbeam 202, a third crossbeam 203, a fourth crossbeam 204, a fifth crossbeam 205, and a sixth crossbeam 206. The first crossbeam 201, the second crossbeam 202, the third crossbeam 203, the fourth crossbeam 204, the fifth crossbeam 205, and the sixth crossbeam 206 are all fixedly arranged between two sets of longitudinal beams 1. The power assembly includes a motor 8, a motor fixing component 15, a drive gear 13, and a driven gear 14. The three motors 8 are respectively fixed to the second crossbeam 202, the third crossbeam 203, and the fifth crossbeam 205 through the motor fixing component 15. The drive gear 13 is fixed to the rotating shaft of the motor 8. The driven gear 14 is respectively fixed to the first axle 301, the second axle 302, and the third axle 303. The drive gear 13 and the driven gear 14 mesh with each other to realize the power transmission of the bogie.

[0030] like Figure 1 As shown, two brake discs 5 are symmetrically arranged on the first axle 301, the second axle 302 and the third axle 303 respectively, and two brake components 4 are symmetrically arranged on the first crossbeam 201, the fourth crossbeam 204 and the sixth crossbeam 206 respectively. The number of brake components 4 is the same as that of brake discs 5 and their positions correspond.

[0031] like Figure 1As shown, the longitudinal beam 1 is provided with a first groove 102 and a second groove 104. A stabilizing component is provided above the first groove 102 and the second groove 104. The stabilizing component is located between the three axles, which improves the structural stability of the bogie. The stabilizing component includes a lower chassis 9, an air suspension 10, and a transition plate 11. The lower chassis 9 is fixed above the first groove 102 and the second groove 104 by bolts. The transition plate 11 is fixedly connected to the lower chassis 9 by bolts. The air suspension 10 is located between the lower chassis 9 and the transition plate 11.

[0032] like Figure 1 As shown, a radar detection component 12 is disposed between the first crossbeam 201 and the sixth crossbeam 206.

[0033] like Figure 1 As shown, a hydraulic lifting mechanism is provided at the second axle 302 (not shown in the figure).

[0034] Example 3: Based on the structure and principle described in Example 1, a four-axle bogie for a railway locomotive can also be provided. The axle assembly 3 includes a first axle 301, a second axle 302, a third axle 303, and a fourth axle. Metal wheels 6 are fixedly installed on both sides of the first axle 301 and the fourth axle, which can bear heavy loads. Rubber wheels 7 are fixedly installed on both sides of the second axle 302 and the third axle 303, which provide greater friction for the bogie. A power assembly is installed inside the frame, and the power assembly is rotatably connected to the axle assembly 3. Both the metal wheels 6 and the rubber wheels 7 can provide traction power.

[0035] Correspondingly, brake components, shock absorbers 16, power components, suspension components, and lifting mechanisms are added.

[0036] In the description of this utility model, the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for describing this utility model and do not require that this utility model be constructed or operated in a specific orientation, and therefore should not be construed as limiting this utility model. The terms "connected" and "linked" in this utility model should be interpreted broadly. For example, they can refer to a connection or a detachable connection; they can refer to a direct connection or an indirect connection through intermediate components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0037] The above description represents the preferred operating mode of this utility model. The specific operating mode description is only for better understanding the concept of this utility model. For those skilled in the art, several improvements or equivalent substitutions can be made based on the principles of this utility model, and these improvements or equivalent substitutions are also considered to fall within the protection scope of this utility model.

Claims

1. A railway locomotive three-axle bogie comprising a frame, characterised in that: The frame includes longitudinal beams (1) and cross beam assemblies (2), the cross beam assemblies (2) are vertically fixed between two groups of longitudinal beams (1), an axle assembly (3) is arranged in the frame, the axle assembly (3) includes a first axle (301), a second axle (302) and a third axle (303), the first axle (301), the second axle (302) and the third axle (303) are rotatably arranged on the longitudinal beams (1), metal wheels (6) are fixedly arranged on both sides of the first axle (301) and the third axle (303), rubber wheels (7) are fixedly arranged on both sides of the second axle (302), three groups of power assemblies are arranged in the frame, and the three groups of power assemblies are rotatably connected with the first axle (301), the second axle (302) and the third axle (303) respectively.

2. The railway locomotive three-axle bogie according to claim 1, characterized in that: The longitudinal beams (1) are provided with a first convex groove (101), a second convex groove (103) and a third convex groove (105), axle fixing plates (106) are arranged in the first convex groove (101), the second convex groove (103) and the third convex groove (105), the first axle (301), the second axle (302) and the third axle (303) are rotatably arranged on the three groups of axle fixing plates (106) respectively, axle fixing pieces (304) are arranged on both sides of the first axle (301), the second axle (302) and the third axle (303), and the axle fixing pieces (304) are fixed on the outer side surfaces of the axle fixing plates (106) through bolts.

3. The railway locomotive three-axle bogie of claim 2, wherein: Dampers (16) are arranged at positions where the first axle (301), the second axle (302) and the third axle (303) are connected with the longitudinal beams (1).

4. The railway locomotive three-axle bogie of claim 1 wherein: The cross beam assemblies (2) include a first cross beam (201), a second cross beam (202), a third cross beam (203), a fourth cross beam (204), a fifth cross beam (205) and a sixth cross beam (206), the first cross beam (201), the second cross beam (202), the third cross beam (203), the fourth cross beam (204), the fifth cross beam (205) and the sixth cross beam (206) are fixedly arranged between two groups of longitudinal beams (1), the power assembly includes motors (8), motor fixing pieces (15), driving gears (13) and driven gears (14), three motors (8) are fixed on the second cross beam (202), the third cross beam (203) and the fifth cross beam (205) through motor fixing pieces (15) respectively, the driving gears (13) are fixed on the rotating shafts of the motors (8), the driven gears (14) are fixed on the first axle (301), the second axle (302) and the third axle (303) respectively, and the driving gears (13) and the driven gears (14) are meshed with each other.

5. The railway locomotive three-axle bogie of claim 4, wherein: Two brake discs (5) are symmetrically arranged on the first axle (301), the second axle (302) and the third axle (303) respectively, two brake pieces (4) are symmetrically arranged on the first cross beam (201), the fourth cross beam (204) and the sixth cross beam (206) respectively, the number of the brake pieces (4) is the same as that of the brake discs (5), and the positions correspond.

6. The railway locomotive three-axle bogie of claim 4 wherein: The longitudinal beam (1) is provided with a first groove (102) and a second groove (104), a stabilizing assembly is arranged above the first groove (102) and the second groove (104), the stabilizing assembly comprises a lower chassis (9), an air suspension (10) and a transition plate (11), the lower chassis (9) is fixed above the first groove (102) and the second groove (104) by bolts respectively, the transition plate (11) is fixedly connected with the lower chassis (9) by bolts, and the air suspension (10) is arranged between the lower chassis (9) and the transition plate (11).

7. The railway locomotive three-axle bogie of claim 4 wherein: The radar detection component (12) is arranged between the first cross beam (201) and the sixth cross beam (206).

8. The three-axle truck for a railway locomotive of claim 1 wherein: The hydraulic lifting mechanism is arranged at the second axle (302).

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