CN102717813A

CN102717813A - Heavy-load car coupler device with coupler tail arc contact and elastic stopping functions

Info

Publication number: CN102717813A
Application number: CN2012101613422A
Authority: CN
Inventors: 姚远; 张红军; 张晓霞
Original assignee: Southwest Jiaotong University
Current assignee: Southwest Jiaotong University
Priority date: 2012-05-23
Filing date: 2012-05-23
Publication date: 2012-10-10

Abstract

The invention discloses a heavy-load car coupler device with coupler tail arc contact and elastic stopping functions. The heavy-load car coupler device is mainly composed of a car coupler, a coupler buffering device and a rotation angle control mechanism, wherein the rotation angle control mechanism is composed of a front slave plate arranged on a top separator, a stop block and a coupler tail pin mechanism; the front slave plate is arranged between the top separator and the circular-arc-shaped end of the car coupler and provided with a circular-arc-shaped edge fitted with the circular-arc-shaped end of the car coupler; the stop block for limiting an overlarge rotation angle of the car coupler is arranged between the front slave plate and the sidewall of a coupler tail frame; and a hole for connecting the coupler tail frame with a coupler tail pin is elliptic. The heavy-load car coupler device provided by the invention has the double functions of coupler tail arc arc contact and elastic stopping, and has low transverse component force and rotation resistance moment within a small rotation angle, therefore, a locomotive has excellent dynamic performance; besides, the car coupler is guaranteed not to be unstable in case of a large rotation angle, and thus the safety of the locomotive is ensured.

Description

A kind of heavy duty vehicle coupler device with the contact of hook tail circular arc and elastic bolster guide

Affiliated technical field

The present invention relates to the rail vehicles manufacturing, especially heavy duty vehicle coupler device manufacturing technology field.

Background technology

Heavy haul train acts on vertical compressive force very big on the locomotive coupler at glancing impact, and when compressive force surpassed the utmost carrying ability of hitch, hitch was understood unstability and caused bigger corner.The conicity force that hitch is bigger makes locomotive produce very big wheel-rail force, causes the locomotive derailing.As one of critical equipment of Heavy-Haul Railway transportation, along with the increase of train transportation tonnage requires also to want corresponding raising to heavy duty vehicle coupler.

Present heavy loading locomotive hitch roughly can divide two types by the steady principle of hook: the first kind is to rely on the contact of hook tail circular arc; During hitch generation corner; Hitch tail end contacting points position changes; Reduced the corner of the actual power transmission line of hitch, thereby reduced the hitch conicity force, hitch has the self-stabilization characteristic in the certain angle.In addition two types through being provided with elastic bolster guide, stops hitch that big corner takes place, thereby keep hitch stable.First kind hitch belongs to little corner hitch; In little corner, hitch transverse force very I is ignored, and hitch is very little in low-angle corner internal resistance moment; Thereby locomotive has good dynamic performance; But when the hitch corner is big, does not stop the hitch corner to increase because backstop is set, thereby can cause that the hitch unstability can cause serious traffic safety accident.Thereby the locomotive that uses this hitch needs bigger two to be that lateral stiffness and less two is horizontal backstop gap, and hitch tail end arc contact surface friction coefficient is had relatively high expectations.Second type of hitch do not possess the characteristics that hook tail circular arc contacts, but when big corner took place hitch, elastic bolster guide can be guaranteed the safety of locomotive.

Summary of the invention

Shortcoming in view of prior art the objective of the invention is to design a kind of later-model heavy duty vehicle coupler device, makes it to overcome the shortcoming of prior art.

The objective of the invention is to realize through following means.

A kind of heavy duty vehicle coupler device with the contact of hook tail circular arc and elastic bolster guide mainly is made up of hitch, coupler buffering device and angle control mechanism, and hitch connects through draft key with coupler buffering device; Said coupler buffering device is installed on the car body mount pad, and wherein, the first clay energy disperser is through base spacer, median septum and four polished rod bolt location and apply precompressed compression; The second clay energy disperser is through hook tail frame and roof spacer location and apply precompressed compression; Said angle control mechanism is by placing preceding slave plate, block and draft key mechanism on the said roof spacer to form; Preceding slave plate places between roof spacer and the hitch arc end; Slave plate has the circular arc edge of fitting with a hitch arc end before said, is provided with the block of the excessive corner of restriction hitch between the sidewall of preceding slave plate and hook tail frame; The hole oval in shape that said hook tail frame connects with draft key.

Adopt structure of the present invention,, make hitch locomotive in little corner have good dynamic performance, guaranteed the safety of locomotive when big corner takes place hitch again in conjunction with the advantage of two types of hitches.

Description of drawings

Fig. 1 is the cutaway view that coupler device of the present invention is overlooked.

Fig. 2 is the front elevation of Fig. 1 hitch.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the present invention is described further.

The present invention mainly is made up of hitch 13, coupler buffering device, preceding slave plate 11 and block 9 and draft key.Coupler buffering device is made up of clay energy disperser, dividing plate and hook tail frame, and hook tail frame is a U-shaped plate structure, places coupler buffering device and angle control mechanism in its U-shaped space.

Coupler buffering device is installed on the car body mount pad, mainly is made up of energy disperser, dividing plate and hook tail frame 6.Coupler buffering device is fixedly mounted on car body mount pad 1.Wherein, precompressed compression is located and applied to the first clay energy disperser 4 through base spacer 2, median septum 5 and 4 bolts 3; Precompressed compression is located and applied to the second clay energy disperser 7 through hook tail frame 6 and roof spacer 8.Hitch 13 is connected through draft key 12 with hook tail frame 6, and hitch 13 can rotate around draft key 12.Slave plate 11 and both sides block 9 before 13 of roof spacer 8 and hitches are provided with.Preceding slave plate 11 is that arc surface contacts with hitch 13 tail ends, and preceding slave plate 11 arc surface radiuses are greater than hitch 13 tail end arc radius.When hitch 13 received pulling force, tractive force transmission stream was: hitch 13-draft key 12-hook tail frame 6-base spacer 2-the first clay buffering 4-median septum 5-car body mount pad 1; When hitch 13 was stressed, compressive force transmission stream was: hitch 13-preceding slave plate 11-roof spacer 8-the second clay energy disperser 7-median septum 5-the first clay energy disperser 4-base spacer 2-car body mount pad 1.Hook tail frame 6 relative car body mount pads 1 can longitudinally move, and are provided with lining pad 10 between them and play a supporting role.During power, compressive force transmits through preceding slave plate 11 and hitch 13 tail end arc contact surfaces by compression, and without draft key 12.

During hitch 13 pressurizeds; When hitch 13 receives the transverse force effect; Because the friction force effect of arc contact surface, hitch 13 tail ends roll around preceding slave plate 11 arc surfaces, rather than slide; So hitch 13 steering resistance squares are little, the arc surface along preceding slave plate 11 moves contacting points position along with the corner variation of hitch 13.When adopting the hitch butt joint of structure of the present invention for two, the line between the arc surface contact point is actual power transmission line, and its deflection angle is less than the hitch actual rotational angle.In the less corner of hitch 13, the power transmission line is basic consistent with the vertical compressive force direction of hitch, so this hitch conicity force can be ignored.When hitch 13 corners were big, hitch 13 tail end bossings contacts with the block 9 of a side, and the second clay energy disperser, 7 one sides are compressed power, and roof spacer 8 deflections and to hitch 13 tail end bossing effect antagonistic forces stop hitch 13 corners continuation increase.Hook tail frame 6 is an elliptical shape with the contact hole of draft key 12, when hitch 13 rotates, allows draft key 12 to have the cross motion displacement.

Claims

1. the heavy duty vehicle coupler device with the contact of hook tail circular arc and elastic bolster guide mainly is made up of hitch, coupler buffering device and angle control mechanism, and hitch connects through draft key with coupler buffering device; Said coupler buffering device is installed on the car body mount pad, wherein: the first clay energy disperser is through base spacer, median septum and four polished rod bolt location and apply precompressed compression; The second clay energy disperser is through hook tail frame and roof spacer location and apply precompressed compression; It is characterized in that; Said angle control mechanism is by placing preceding slave plate, block and draft key mechanism on the roof spacer to form; Preceding slave plate places between roof spacer and the hitch arc end; Slave plate has the circular arc edge of fitting with a hitch arc end before said, is provided with the block of the excessive corner of restriction hitch between the sidewall of preceding slave plate and hook tail frame; The hole oval in shape that said hook tail frame connects with draft key.

2. the heavy duty vehicle coupler device with hook tail circular arc contact and elastic bolster guide according to claim 1, it is characterized in that: the arc radius on slave plate circular arc edge is greater than the arc radius of hitch arc end before said.