Road-railway dual-purpose tractor walking device and road-railway dual-purpose vehicle

Abstract

The utility model discloses a road-railway dual-purpose tractor walking device and a road-railway dual-purpose vehicle. The walking device comprises a vehicle frame, a driving device and a driving device, an outer shell of the axle is fixed to the frame, a transmission device in the outer shell is used for being connected with a driving device, and the driving device is used for driving the transmission device to rotate; the at least two wheels are arranged at the two ends of the axle respectively, the wheels are connected with the transmission device, and the transmission device is used for driving the wheels to rotate; the guide wheel is connected to the outer shell through an axle box; the telescopic device is arranged on the frame and connected to the axle box, the telescopic device is used for driving the guide shaft to rise and fall, and the guide wheel is used for abutting against the rail and guiding the vehicle when the telescopic device extends out. According to the highway-railway dual-purpose tractor walking device and the highway-railway dual-purpose vehicle, the switching efficiency of the highway mode and the railway mode is high, the whole vehicle is always driven by the wheels and the driving device, the large-tonnage traction requirement can be met, and the problems of traction slipping and insufficient traction force are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rail equipment traction, and more specifically, to a running device of a road-rail dual-purpose tractor. In addition, the utility model also relates to a road-rail dual-purpose vehicle including the above-mentioned road-rail dual-purpose tractor running device. Background Art

[0002] Road-rail vehicles can switch between road and rail operation modes, so they are widely used in the rail transportation industry. At present, road-rail vehicles are often used for railway traction, emergency repair, construction and rescue operations due to their flexible operation modes.

[0003] As far as traction operations are concerned, with the rapid development of rail transit, the tasks of railway traction and transfer operations have become increasingly arduous, and the demand for large-tonnage traction has become increasingly urgent. However, most of the existing road-rail dual-purpose vehicles have a small traction tonnage and cannot meet the demand for large-tonnage traction, which can easily cause defects such as traction slippage and insufficient traction force. In addition, the conversion efficiency between road and rail modes is low, making it inconvenient to use.

[0004] In summary, how to improve the conversion efficiency between road and rail modes is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of the utility model is to provide a running device for a road-rail dual-purpose tractor, which has a reasonable overall layout, a simple structure, and a high efficiency in converting road and rail modes, can meet the needs of large-tonnage traction, and avoid the problems of traction slippage and insufficient traction force.

[0006] Another object of the utility model is to provide a road-rail dual-purpose vehicle including the above-mentioned road-rail dual-purpose traction vehicle running device.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A running device of a road-rail dual-purpose tractor, comprising:

[0009] Frame;

[0010] An axle, whose outer shell is fixed to the frame, a transmission device inside the outer shell is used to connect with a driving device, and the driving device is used to drive the transmission device to rotate;

[0011] Wheels, at least two of which are disposed at both ends of the axle, the wheels are connected to the transmission device, and the transmission device is used to drive the wheels to rotate;

[0012] A guide wheel connected to the outer shell through an axle box;

[0013] A telescopic device is arranged on the frame and connected to the axle box. The telescopic device is used to drive the guide wheel to reciprocate in the vertical direction. When the telescopic device is extended, the guide wheel is used to abut against the rail and guide the vehicle.

[0014] Preferably, the vehicle frame comprises a front-drive frame and a rear-drive frame, the front-drive frame and the rear-drive frame are rotatably connected, at least three axles are provided, and at least two axles are provided on the rear-drive frame.

[0015] Preferably, the front-wheel drive frame is provided with a first axle, the rear-wheel drive frame is provided with a second axle and a third axle, the second axle is provided on a side of the rear-wheel drive frame close to the front-wheel drive frame, the drive device is transmission-connected to the second axle, and the second axle is transmission-connected to the third axle via a transmission shaft.

[0016] Preferably, the second axle is fixedly connected to the third axle and a combination of the two is hinged to the lower end of the frame, and the first axle is connected to the lower end of the frame in an articulated manner.

[0017] Preferably, the number of the guide wheels is twice the number of the axles, and each axle is correspondingly provided with two guide wheels, the two correspondingly provided guide wheels are connected by a connecting shaft, the two guide wheels are pressed together to form a guide wheel pair, and the guide wheel pair is rotatably connected to the axle box.

[0018] Preferably, the telescopic device is a hydraulic cylinder, the hydraulic cylinder is hinged to the frame, and the connection between the hydraulic cylinder and the axle box is hinged.

[0019] Preferably, the wheel is a rubber wheel.

[0020] A road-rail dual-purpose tractor running device comprises a road-rail dual-purpose tractor running device, wherein the road-rail dual-purpose tractor running device is any one of the road-rail dual-purpose tractor running devices mentioned above.

[0021] The utility model provides a running device for a road-rail dual-purpose tractor, wherein the device is provided with an axle and a telescopic device on a vehicle frame, the outer shell of the axle is fixed to the vehicle frame, two ends of the axle are respectively provided with a transmission device connected to the inner part of the outer shell and the wheel, in addition, the transmission mechanism is connected to the driving device, the driving device can drive the transmission device, thereby driving the wheel to rotate, one end of the telescopic device is connected to an axle box, one end of the axle box is fixed to the axle, and a rotatable guide wheel is provided at the other end, the telescopic device can push the guide wheel to contact with the rail in an extended state, and guide it through the guide wheel, so that the whole device is in a railway mode, when the telescopic device is retracted, the guide wheel moves toward the direction of the vehicle frame, in this state the device is in a road mode, the guide wheel is no longer needed to play a guiding role, the road mode and the railway mode can be quickly switched through the telescopic device, the switching efficiency is high, and the whole vehicle is driven by the wheel and the driving device, so that the large-tonnage traction demand can be met, and the problems of traction slippage and insufficient traction force can be avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1 A schematic diagram of the structure of the running device of the road-rail dual-purpose tractor provided by the utility model;

[0024] Figure 2 This is a schematic diagram of the installation of the guide wheel provided by the utility model.

[0025] Figure 1 and Figure 2 , the reference numerals include:

[0026] 1 is a vehicle frame, 2 is an axle, 2-1 is a first axle, 2-2 is a second axle, 2-3 is a third axle, 3 is a wheel, 4 is a guide wheel, 5 is an axle box, 6 is a telescopic device, and 7 is a transmission shaft. DETAILED DESCRIPTION

[0027] 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.

[0028] The core of the utility model is to provide a running device for a road-rail dual-purpose tractor. The running device for the road-rail dual-purpose tractor has a reasonable overall layout, a simple structure, and a high efficiency in converting road and rail modes. It can meet the needs of large-tonnage traction and avoid the problems of traction slippage and insufficient traction force.

[0029] Another core of the utility model is to provide a road-rail dual-purpose vehicle including the above-mentioned road-rail dual-purpose traction vehicle running device.

[0030] It should be noted that the directions or positional relationships indicated by “upper”, “lower”, “front”, “back”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0031] The present application provides a road-rail dual-purpose tractor running device, comprising: a frame 1, an axle 2, wheels 3, guide wheels 4 and a telescopic device 6;

[0032] Among them, the frame 1 is the base of the entire device;

[0033] The outer shell of the axle 2 is fixed to the frame 1, and the transmission device inside the outer shell is used to connect with the driving device, and the driving device is used to drive the transmission device to rotate;

[0034] There are at least two wheels 3, which are respectively arranged at both ends of the axle 2. The wheels 3 are connected to a transmission device, which is used to drive the wheels 3 to rotate.

[0035] The guide wheel 4 is connected to the outer shell through the axle box 5;

[0036] The telescopic device 6 is provided on the frame 1 and connected to the axle box 5. The telescopic device 6 is used to drive the guide wheel 4 to reciprocate in the vertical direction. The guide wheel 4 is used to abut against the rail and guide the vehicle when the telescopic device 6 is extended.

[0037] For details, please refer to the attached Figure 1 With attached Figure 2The frame 1 includes two parallel plate-like members, the axle 2 is connected to the frame 1 and the two ends of the axle 2 extend out of the frame 1 respectively, and the two ends of the axle 2 are connected to rotatable wheels 3. The frame 1 is also provided with a rotatable telescopic device 6, and the guide wheel 4 is connected to the outer shell of the axle 2 through the axle box 5. The telescopic device 6 is connected to the hydraulic control system, and the hydraulic control system can control it to extend or retract. When the telescopic device 6 is extended, it can push the axle box 5, thereby driving the guide wheel 4 to move in the direction away from the frame 1, so that the guide wheel 4 can abut against the rail, and the guide wheel 4 plays a guiding role, thereby the whole When the telescopic device 6 is switched to the railway mode, the axle box 5 can be pulled in the retracted state, thereby driving the guide wheel 4 to move in the direction of the frame 1, so that the position of the guide wheel 4 rises and no longer contacts the rail, thereby switching the entire device to the road mode, and only the driving device drives the transmission device inside the axle 2, thereby driving the wheel 3 to rotate, so as to realize road driving. The telescopic device 6 can quickly realize the switching between the road mode and the railway mode, and the switching efficiency is high. The device always drives the entire vehicle through the wheel 3 and the driving device, which can meet the large-tonnage traction needs and avoid the problems of traction slippage and insufficient traction.

[0038] On the basis of the above embodiment, the vehicle frame 1 includes a front drive frame and a rear drive frame, the front drive frame and the rear drive frame are rotatably connected, at least three axles 2 are provided, and at least two axles 2 are provided on the rear drive frame.

[0039] Specifically, the front-drive frame and the rear-drive frame can rotate relative to each other to facilitate steering during driving. At least two axles 2 are provided on the rear-drive frame, and each set of axles 2 corresponds to two wheels 3 and two guide wheels 4. Three pairs of axles 2 are used for driving and three pairs of guide wheels 4 are used for railway mode guidance. The traction weight is more than 5,000 tons, and the conversion efficiency between road and railway modes is high.

[0040] On the basis of the above embodiment, a first axle 2-1 is provided on the front-wheel drive frame, a second axle 2-2 and a third axle 2-3 are provided on the rear-wheel drive frame, the second axle 2-2 is provided on a side of the rear-wheel drive frame close to the front-wheel drive frame, the drive device is transmission-connected to the second axle 2-2, and the second axle 2-2 and the third axle 2-3 are transmission-connected via a transmission shaft 7.

[0041] Specifically, the first axle 2-1, the second axle 2-2 and the third axle 2-3 are arranged along the length extension direction of the frame 1, as shown in the attached Figure 1 As shown, that is, Figure 1In the left and right directions, the first axle 2-1 is connected to the driving device at the front end (not shown in the drawings), and the second axle 2-2 is connected to the driving device at the rear end. The driving device is preferably an engine. The second axle 2-2 and the third axle 2-3 transmit torque through the transmission shaft 7 so that the second axle 2-2 can transmit power to the third axle 2-3. It should be noted that the specific number of axles 2 needs to be adjusted according to the total weight of the frame 1 and the items loaded thereon to ensure structural stability.

[0042] On the basis of the above embodiment, the second axle 2-2 and the third axle 2-3 are fixedly connected and the assembly of the two is hinged to the lower end of the frame 1, and the first axle 2-1 is connected to the lower end of the frame 1 in an articulated manner.

[0043] Specifically, the first axle 2-1, the second axle 2-2 and the third axle 2-3 are all connected to the lower end of the frame 1 by an articulated manner, so that the first axle 2-1, the second axle 2-2 and the third axle 2-3 can rotate to a certain extent, so that the vehicle can adaptively turn during driving and improve structural stability.

[0044] In some embodiments, the number of guide wheels 4 is twice the number of axles 2, and each axle 2 is correspondingly provided with two guide wheels 4, the two correspondingly provided guide wheels 4 are connected by a connecting shaft, the two guide wheels 4 are pressed together to form a guide wheel pair, and the guide wheel pair is rotatably connected to the axle box 5.

[0045] Specifically, the same number of guide wheels 4 are arranged on both sides of the frame 1, and the corresponding guide wheels 4 are arranged as a group, and each group of guide wheels 4 is connected by a connecting shaft. A group of guide wheels 4 is press-fitted and connected to the connecting shaft to form a guide wheel pair, and the axle box 5 is rotatably connected to the guide wheel pair. Guide wheels 4 are arranged on both sides of the frame 1 to ensure the stability of the device during the guiding process.

[0046] In some embodiments, the telescopic device 6 is a hydraulic cylinder, which is hinged to the frame 1 , and the connection between the hydraulic cylinder and the axle box 5 is hinged.

[0047] Specifically, the telescopic device 6 is preferably a hydraulic cylinder, which is connected to a hydraulic control system. The hydraulic cylinder has a simple structure and works reliably. When the hydraulic cylinder is used to achieve reciprocating motion, the motion is smooth.

[0048] On the basis of the above embodiment, the wheel 3 is a rubber wheel.

[0049] Specifically, the wheel 3 is made of rubber wheels, which have great friction and strong traction ability, can ensure great grip during operation, can meet the needs of large-tonnage traction, and avoid the problems of traction slippage and insufficient traction.

[0050] In addition to the above-mentioned road-rail dual-purpose tractor running device, the utility model also provides a road-rail dual-purpose vehicle including the road-rail dual-purpose tractor running device disclosed in the above-mentioned embodiment. For the structures of other parts of the road-rail dual-purpose vehicle, please refer to the prior art and will not be repeated in this article.

[0051] 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.

[0052] The above is a detailed introduction to a road-rail dual-purpose tractor running device and a road-rail dual-purpose vehicle provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment 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 running device for a road-rail dual-purpose tractor, characterized in that: include: Frame (1); An axle (2), whose outer shell is fixed to the frame (1), wherein a transmission device inside the outer shell is used to connect with a driving device, and the driving device is used to drive the transmission device to rotate; At least two wheels (3) are provided and are respectively arranged at the two ends of the axle (2), the wheels (3) are connected to the transmission device, and the transmission device is used to drive the wheels (3) to rotate; A guide wheel (4) connected to the outer shell through an axle box (5); A telescopic device (6) is arranged on the vehicle frame (1) and connected to the axle box (5); the telescopic device (6) is used to drive the guide wheel (4) to perform reciprocating motion in the vertical direction; the guide wheel (4) is used to abut against the rail and guide the vehicle when the telescopic device (6) is in the extended state.

2. The running device of the road-rail dual-purpose tractor according to claim 1 is characterized in that: The vehicle frame (1) comprises a front-drive frame and a rear-drive frame, the front-drive frame and the rear-drive frame are rotatably connected, at least three axles (2) are provided, and at least two axles (2) are provided on the rear-drive frame.

3. The running device of the road-rail dual-purpose tractor according to claim 2 is characterized in that: The front-drive frame is provided with a first axle (2-1), the rear-drive frame is provided with a second axle (2-2) and a third axle (2-3), the second axle (2-2) is provided on a side of the rear-drive frame close to the front-drive frame, the drive device is transmission-connected to the second axle (2-2), and the second axle (2-2) and the third axle (2-3) are transmission-connected via a transmission shaft (7).

4. The running device of the road-rail dual-purpose tractor according to claim 3 is characterized in that: The second axle (2-2) is fixedly connected to the third axle (2-3), and the assembly of the two is hinged to the lower end of the frame (1); the first axle (2-1) is connected to the lower end of the frame (1) in an hinged manner.

5. The running device of the road-rail dual-purpose tractor according to claim 1 is characterized in that: The number of the guide wheels (4) is twice the number of the axles (2), and each axle (2) is correspondingly provided with two guide wheels (4), the two correspondingly provided guide wheels (4) are connected via a connecting shaft, the two guide wheels (4) are press-fitted to form a guide wheel pair, and the guide wheel pair is rotatably connected to the axle box (5).

6. The running device of the road-rail dual-purpose tractor according to claim 1, characterized in that: The telescopic device (6) is a hydraulic cylinder, the hydraulic cylinder is hinged to the vehicle frame (1), and the connection between the hydraulic cylinder and the axle box (5) is hinged.

7. The running device of the road-rail dual-purpose tractor according to any one of claims 1 to 6, characterized in that: The wheel (3) is a rubber wheel.

8. A road-rail dual-purpose vehicle, comprising a road-rail dual-purpose tractor running device, characterized in that: The running device of the road-rail dual-purpose tractor is the running device of the road-rail dual-purpose tractor as described in any one of claims 1 to 7.

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