Pilot wheel bogie with multi-degree-of-freedom rocker

Abstract

The utility model discloses a pilot wheel bogie with a multi-degree-of-freedom rocker, which relates to the technical field of tourism rail transit, and comprises a locomotive bogie assembly and two cylinders, the two cylinders are both provided with piston rods, and the two piston rods are both connected with the locomotive bogie assembly through a multi-degree-of-freedom rocker assembly. The multi-degree-of-freedom rocker assembly comprises a connecting rod and a rocker body. According to the multi-degree-of-freedom rocker assembly, compared with a traditional rocker, a rotatable degree of freedom is innovatively arranged on the portion, connected with the locomotive bogie, of the rocker assembly, and the portion, connected with the piston rod, of the rocker assembly is connected through the joint bearing, so that the rocker body can rotate relative to the locomotive bogie; the locomotive bogie and the pilot wheel bogie can rotate at the same time, the advantages of the two traditional bogies are combined, the adaptability to small curve lines is higher, and therefore the adaptability of the bogies to complex terrains is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tourist rail transportation, in particular to a leading wheel bogie with a multi-freedom rocker. Background Art

[0002] Leading wheel bogies are used in the field of tourist rail transit and are part of the running system of tourist rail sightseeing trains. There are two types of conventional bogies: The first type is a common locomotive bogie, where the cylinder and connecting rod rocker system are connected to the bogie frame. During steering, the cylinder and connecting rod rocker system rotate with the bogie.

[0003] The second type is a locomotive bogie with a leading wheel. The difference between this type of locomotive bogie and an ordinary locomotive bogie is that the leading wheel bogie has one more leading wheel bogie than an ordinary bogie, the frame of the large wheel bogie is connected to the front body of the locomotive, and the connecting rod rocker system is connected to the large wheel bogie; during the turning process, the leading wheel rotates, and the large wheel bogie and the body do not rotate relative to each other.

[0004] However, both existing bogies cannot adapt to small curves and have relatively poor adaptability to complex terrain, requiring improvement and optimization. Therefore, we propose a leading wheel bogie with a multi-degree-of-freedom rocker. Utility Model Content

[0005] The purpose of the utility model is to solve the problem in the prior art that the bogie cannot adapt to small curve lines, and to propose a leading wheel bogie with a multi-freedom rocker.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] A guide wheel bogie with a multi-degree-of-freedom rocker comprises a locomotive bogie assembly and two cylinders. Both cylinders are provided with piston rods, and both piston rods are connected to the locomotive bogie assembly through the multi-degree-of-freedom rocker assembly. The multi-degree-of-freedom rocker assembly comprises a connecting rod and a rocker body.

[0008] As a preferred embodiment of the present invention, the locomotive bogie assembly is provided with a secondary crank pin and a primary crank pin.

[0009] As a preferred embodiment of the present invention, the two cylinders are fixedly connected to the vehicle body via a connecting plate.

[0010] As a preferred embodiment of the present invention, one end joint of the connecting rod is connected to the auxiliary crank pin through a first mesh tube steel sleeve, and the other end joint of the connecting rod is connected to the main crank pin through a second mesh tube steel sleeve.

[0011] As a preferred embodiment of the present invention, a first lubricating oil filling piece communicating with the first mesh steel sleeve is provided at a joint at one end of the connecting rod, and a second lubricating oil filling piece communicating with the second mesh steel sleeve is provided at a joint at the other end of the connecting rod.

[0012] As a preferred embodiment of the present invention, one end of the rocker body is connected to the main crank pin through a hinge, and the other end of the rocker body is connected to the piston rod through a joint bearing.

[0013] The beneficial effects of the utility model are:

[0014] The utility model proposes a leading wheel bogie with a rocker with multiple degrees of freedom. The leading wheel bogie can rotate freely like an ordinary locomotive bogie with a leading wheel. Compared with the traditional rocker, the multi-degree-of-freedom rocker assembly innovatively sets a degree of freedom for rotation at the connection part with the locomotive bogie, and adopts a joint bearing connection at the connection part with the piston rod, so that the rocker body and the locomotive bogie can rotate relative to each other, allowing the locomotive bogie and the leading wheel bogie to rotate at the same time. It combines the advantages of the two traditional bogies, has stronger adaptability to small curve lines, and thus increases the adaptability of the bogie to complex terrain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a guide wheel bogie with a multi-degree-of-freedom rocker proposed in the utility model;

[0016] Figure 2 This is a partial three-dimensional enlarged structural schematic diagram of a leading wheel bogie with a multi-degree-of-freedom rocker proposed by the utility model.

[0017] In the figure: 1. locomotive bogie assembly; 2. cylinder; 3. piston rod; 4. multi-degree-of-freedom rocker assembly; 5. connecting plate; 6. auxiliary crank pin; 7. main crank pin; 8. connecting rod; 9. first mesh cylinder steel sleeve; 10. first lubricating oil filling piece; 11. second mesh cylinder steel sleeve; 12. second lubricating oil filling piece; 13. rocker body; 14. hinge; 15. spherical bearing. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example 1, with reference to Figure 1-2 , a leading wheel bogie with a multi-degree-of-freedom rocker, comprising a locomotive bogie assembly 1 and two cylinders 2;

[0020] In this embodiment, both cylinders 2 are fixedly connected to the vehicle body via a connecting plate 5. Both cylinders 2 are provided with a piston rod 3, and both piston rods 3 are connected to the locomotive bogie assembly 1 via a multi-degree-of-freedom rocker assembly 4. The multi-degree-of-freedom rocker assembly 4 includes a connecting rod 8 and a rocker body 13. The locomotive bogie assembly 1 is provided with a secondary crank pin 6 and a primary crank pin 7.

[0021] In this embodiment, the joint at one end of the connecting rod 8 is connected to the auxiliary crank pin 6 through the first mesh steel sleeve 9, and the joint at the other end of the connecting rod 8 is connected to the main crank pin 7 through the second mesh steel sleeve 11. A first lubricating oil filling piece 10 communicating with the first mesh steel sleeve 9 is provided at the joint at one end of the connecting rod 8, and a second lubricating oil filling piece 12 communicating with the second mesh steel sleeve 11 is provided at the joint at the other end of the connecting rod 8. This facilitates the addition of lubricating oil, thereby reducing the wear between the joints at both ends of the connecting rod 8 and the auxiliary crank pin 6 and the main crank pin 7;

[0022] In this embodiment, one end of the rocker body 13 is connected to the main crank pin 7 through a hinge 14, and the other end of the rocker body 13 is connected to the piston rod 3 through a spherical bearing 15;

[0023] In this embodiment, since the cylinder 2 is fixed to the vehicle body, the cylinder 2 does not rotate relative to the vehicle body, so the piston rod 3 only performs a reciprocating linear motion. The rocker body 13 and the piston rod 3 are connected by a joint bearing 15, and there is a degree of freedom of rotation between the rocker body 13 and the locomotive bogie. Therefore, when the vehicle turns, the deflection of the locomotive bogie does not affect the reciprocating linear motion of the piston rod 3. In this way, the guide wheel bogie and the locomotive bogie can be deflected simultaneously to adapt to the line conditions with a small curve radius.

[0024] Working principle: Since the cylinder 2 is firmly fixed on the car body, there will be no relative rotation between it and the car body. The piston rod 3 of the cylinder 2 performs a single reciprocating linear motion inside the cylinder 2. The joint bearing 15 between the rocker body 13 and the piston rod 3 ensures that the linear motion of the piston rod 3 is not affected even when the rocker body 13 rotates. At the same time, the rotational freedom between the locomotive bogie assembly 1 and the rocker body 13 allows the bogie to deflect flexibly when the locomotive turns. This design cleverly realizes that when the locomotive travels to a small curve radius line, the leading wheel bogie and the locomotive bogie can deflect synchronously, thereby ensuring the stable and safe operation of the locomotive on small radius curves.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A guide wheel bogie with a multi-degree-of-freedom rocker, comprising a locomotive bogie assembly (1) and two cylinders (2), characterized in that: The two cylinders (2) are both provided with piston rods (3), and the two piston rods (3) are both connected to the locomotive bogie assembly (1) through a multi-degree-of-freedom rocker assembly (4), wherein the multi-degree-of-freedom rocker assembly (4) includes a connecting rod (8) and a rocker body (13).

2. A guide wheel bogie with a multi-degree-of-freedom rocker according to claim 1, characterized in that: The locomotive bogie assembly (1) is provided with a secondary crank pin (6) and a primary crank pin (7).

3. The guide wheel bogie with a multi-degree-of-freedom rocker according to claim 1, characterized in that: The two cylinders (2) are fixedly connected to the vehicle body via a connecting plate (5).

4. The guide wheel bogie with a multi-degree-of-freedom rocker according to claim 1, characterized in that: One end joint of the connecting rod (8) is connected to the auxiliary crank pin (6) through a first mesh steel sleeve (9), and the other end joint of the connecting rod (8) is connected to the main crank pin (7) through a second mesh steel sleeve (11).

5. The guide wheel bogie with a multi-degree-of-freedom rocker according to claim 1, characterized in that: A first lubricating oil filling piece (10) communicating with the first mesh steel sleeve (9) is provided at a joint at one end of the connecting rod (8), and a second lubricating oil filling piece (12) communicating with the second mesh steel sleeve (11) is provided at a joint at the other end of the connecting rod (8).

6. The guide wheel bogie with a multi-degree-of-freedom rocker according to claim 1, characterized in that: One end of the rocker body (13) is connected to the main crank pin (7) through a hinge (14), and the other end of the rocker body (13) is connected to the piston rod (3) through a joint bearing (15).

Images