CN100484816C - A locomotive combined traction device - Google Patents

Abstract

A combined traction device for a locomotive. The traction device of the bogies at both ends and the traction device of the middle bogie adopt different structural forms respectively. It is a combined traction device of the bogie, wherein the bogies at both ends adopt the central low position Push-pull diagonal tie rods, while the middle bogie adopts a central push-pull flat tie rod; the bogies at both ends include a flat draw bar, a triangular brace and an oblique draw bar. One end of the flat draw bar is connected to the frame draw beam through a draw pin, and the other end is connected to a corner of the triangular brace through a draw pin. One end of the oblique drawbar is connected to the vehicle body traction seat, and the other end is connected to the triangular brace through the traction pin; while the middle bogie adopts a central push-pull flat tie rod, which is mainly composed of a long drawbar and connecting parts. The long drawbar There is an elastic rubber ball joint at both ends, which is connected with the vehicle body traction seat and the frame traction beam traction seat through the elastic rubber ball joint.

Description

A locomotive combined traction device

technical field

The invention relates to a traction device, in particular to a locomotive combined traction device, belonging to locomotive component devices.

Background technique

The BO-BO-BO shaft locomotive running part consists of two end bogies and one middle bogie. The traction device mainly transmits the traction and braking force of the locomotive, and at the same time coordinates the relative movement between the bogie and the car body. Domestically, there are mainly 6K locomotives, SS7, SS7B, SS7C, SS7D, narrow-gauge diesel locomotives exported to Myanmar by Dalian Locomotive Works (referred to as Myanmar locomotives), while foreign countries mainly include Japanese EF200 locomotives, EF500 locomotives, Swedish RC locomotives, GM10, Russian Э П 10 electric locomotives and B П 85, B П 86 electric locomotives, etc. The traction devices of these locomotives mainly include the following types: Z-shaped low-position diagonal stay rods represented by 6K and SS7 series locomotives. This traction device has a high adhesion utilization rate and good recovery performance of the bogie. , the height of the traction point needs to be adjusted with the wear of the tread, and there are multiple friction pairs in the traction device, which increases the workload of maintenance; the central pin traction device represented by the Myanmar locomotive has a simple structure, but the adhesion utilization rate is low ;The low-centered Z-type tie rod represented by the EF500 locomotive, this kind of traction device has good neutrality, but the traction point is high, and the adhesion utilization rate is low; represented by Э П 10, B П 85, and B П 86 The central push-pull low-position single-rod, this kind of traction device has a simple structure, but the adhesion utilization rate is relatively low; the combined traction device represented by the EF200 locomotive, that is, the end bogie is a central push-pull pull rod, and the middle steering The frame adopts Z-shaped low-position diagonal tie rods. This combined traction device has a high adhesion utilization rate, and the intermediate bogie has good reset performance, but the structure of the intermediate bogie traction device is relatively complicated. Therefore, all there are some deficiencies in the traction device of the existing locomotive, it is necessary to improve this.

Contents of the invention

The purpose of the present invention is to solve the deficiency of the traction device of the current locomotive, aiming at the current situation of the traction device of the BO-BO-BO locomotive, a new type combined traction device is provided, which can make the locomotive obtain the best adhesion utilization rate , At the same time, the traction device has no friction pair, and the height of the traction point does not need to be adjusted according to the wear of the wheel tread.

The purpose of the present invention is achieved through the following technical solutions: the present invention is a combined traction device, the traction device of the bogies at both ends and the traction device of the middle bogie respectively adopt different structural forms, wherein the two ends turn to The central low-position push-pull diagonal tie rod is used in the frame, and the central push-pull flat tie rod is used in the middle bogie; the bogies at both ends include a flat draw bar, a triangular brace and an oblique draw bar. One end of the flat draw bar is connected with the frame draw beam through the draw pin, and the other end is connected with a corner of the triangular brace through the draw pin, and a joint bearing is installed at both ends of the draw bar. One end of the inclined drawbar is connected with the fifth wheel of the vehicle body, and the other end is connected with the triangular brace through the traction pin. Each end of the inclined drawbar is equipped with a rubber joint to adapt to the movement between the bogie and the vehicle body in all directions, and at the same time provide a suitable traction longitudinal stiffness. The three corners of the triangular brace are respectively connected with the frame end beam, the flat draw bar and the inclined draw bar through draw pins. The triangular brace, the flat drawbar and the frame form a stable structure, and the triangular brace also plays the role of connecting the flat drawbar and the oblique drawbar. The traction device of this structure can adjust the height of the traction point of the end bogie in a wide range by adjusting the oblique angle of the oblique traction bar relative to the rail surface, especially to obtain a lower or even less than zero height of the traction point; while the intermediate steering The frame adopts a central push-pull flat tie rod, which is mainly composed of a long draw rod and a connecting piece. The connecting piece is an elastic rubber ball joint. There is an elastic rubber ball joint at each end of the long draw bar. The body fifth wheel is connected with the frame draw beam fifth wheel.

Compared with the existing BO-BO-BO traction device, the new BO-BO-BO combined traction device has the following advantages:

By optimizing the height of the traction point of the end bogie and the middle bogie, the locomotive can obtain the best adhesion utilization rate; the three bogies all use the central traction rod, which reduces the traction seat on the chassis of the car body and facilitates the undercarriage. The frame adopts the central large longitudinal beam structure, which makes the force transmission more smooth and the load capacity of the car body is improved; the adhesion utilization rate of the locomotive using this combined traction device has little influence with the wear of the tread, and there is no need during the entire process of tread wear. Adjusting the height of the traction point of the bogie reduces the maintenance workload and operating costs; the device has no friction pair, which can effectively reduce wear and maintenance work; the relatively simple structure enables the BO-BO-BO locomotive to obtain the best adhesion The utilization rate can effectively reduce the maintenance workload and operating costs of locomotives.

Description of drawings

Fig. 1 is the schematic front view of the structure of the bogie traction device at both ends;

Fig. 2 is a structural schematic A-A view of the bogie traction device at both ends;

Fig. 3 is a B-B partial view of the bogie traction device at both ends;

Fig. 5 is a schematic front view of the structure of the intermediate bogie;

Fig. 6 is a schematic top view of the structure of the intermediate bogie.

In the figure: 1—first traction pin; 2—joint bearing; 3—flat drawbar; 4—second traction pin; 5—joint bearing; 6—triangular strut; 7—rubber joint (1); 8—traction Pin (three); 9—oblique drawbar; 10—traction pin (three); 11—rubber joint (two); 12—frame traction beam; 13—car body traction seat; 14—long drawbar; 15—connector ; 16—elastic rubber ball joint splayed; 17—car body traction seat; 18—frame traction beam traction seat.

Detailed ways

The accompanying drawings show an embodiment of the present invention, and the present invention will be further described below in conjunction with the accompanying drawings.

It can be seen from the accompanying drawings that the present invention is a combined traction device. The traction device of the bogies at both ends and the traction device of the middle bogie adopt different structural forms respectively, wherein the bogies at both ends adopt the central low position Push-pull diagonal tie rods, while the middle bogie adopts a central push-pull flat tie rod; the central low-position push-pull diagonal tie rod structure of the bogies at both ends includes a flat draw bar 3, a triangular brace 6 and an oblique draw bar 9. One end of the flat draw bar 3 links to each other with the frame draw beam 12 by the first draw pin 1, and the other end links to each other with a corner of the triangular brace by the second draw pin 4, and a joint bearing 2 and 5 are respectively adorned at the flat draw bar 3 two ends. One end of the inclined drawbar 9 is connected with the traction seat 13 of the vehicle body, and the other end is connected with the triangular strut 6 through the second traction pin 4. The two ends of the inclined drawbar 9 are respectively equipped with a rubber joint 7 and 11 to adapt to the bogie and the vehicle body. All-directional movement between, while providing suitable traction longitudinal stiffness. The three corners of the triangular brace 6 are respectively connected with the frame end beam 14, the flat draw bar 3 and the oblique draw bar 9 through draw pins. The triangular brace 6, the flat drawbar 3 and the framework form a stable structure, and the triangular brace 6 also plays the role of connecting the flat drawbar 3 and the oblique drawbar 9 simultaneously. The traction device of this structure can adjust the height of the traction point of the end bogie in a wide range by adjusting the oblique angle of the inclined traction rod 9 relative to the rail surface, especially to obtain a lower or even less than zero height of the traction point; The central push-pull flat tie rod of the bogie is mainly composed of a long draw bar 14 and a connecting piece 15. The connecting piece 15 is an elastic rubber ball joint, and each of the two ends of the long draw bar 14 has an elastic rubber ball joint. The joint splayed surface 16 is connected with the vehicle body fifth wheel fifth wheel 17 and the frame traction crossbeam fifth wheel fifth wheel 18.

Flexible rubber ball joint, long drawbar 14 two ends respectively have an elastic rubber ball joint, link to each other with car body traction seat 17 and frame traction crossbeam traction seat 18 by elastic rubber ball joint splayed face 16.

Claims (2)

1, a kind of composition type draw gear of locomotive, it is characterized in that: the draw gear of two ends bogie truck and the draw gear of middle bogie, adopt different version respectively, wherein, the two ends bogie truck adopts central low level push-pull type digonal link, and middle bogie adopts central push-pull type horizontal drawing bar; The central low level push-pull type digonal link structure of described two ends bogie truck comprises a flat draw bar, a triangle-pole and a diagonal draw bar; Flat draw bar one end links to each other with framework traction crossbeam by first towing pin, and the other end links to each other with an angle of triangle-pole by second towing pin, and an oscillating bearing is respectively adorned at flat draw bar two; One of diagonal draw bar links to each other with the car body traction seat, and the other end then links to each other with triangle-pole by second towing pin, and a rubber arthrosis is respectively adorned at diagonal draw bar two; Three angles of triangle-pole link to each other with truck end sill, flat draw bar, diagonal draw bar by towing pin respectively; Triangle-pole, flat draw bar and framework form a stable structure, and triangle-pole also works to connect flat draw bar and diagonal draw bar simultaneously.

2, composition type draw gear of locomotive as claimed in claim 1, it is characterized in that: the central push-pull type horizontal drawing bar of described middle bogie, mainly form by a long draw bar and attaching parts, attaching parts is the elastic caoutchouc ball and socket, respectively there is an elastic caoutchouc ball and socket at long draw bar two, links to each other with framework traction crossbeam traction seat with the car body traction seat by elastic caoutchouc ball and socket Eight characters face.

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