CN209395808U - A kind of novel coupler knuckle for car coupler structure - Google Patents

Abstract

The utility model discloses a kind of novel coupler knuckle for car coupler structures, including hook bolt matrix, the hook bolt matrix includes hook nose, wrist in hook bolt, hook bolt pin hole, inner cavity, the inner wall of wrist is round and smooth curved surface in the hook bolt, the hook nose lower end inside forms the face hook bolt S, hook bolt S face inside lower end is circular arc camber, rounding off is connected with hook nose, the hook bolt upper end is equipped with concave type nasal cavity, the oral area of nasal cavity is trapezoidal, the coupler knuckle for car coupler waist is equipped with inner cavity, the bottom surface of inner cavity is equipped with round and smooth protrusion, the inner cavity lower part is provided with hook bolt pin hole, the bottom of the coupler knuckle for car coupler is tail portion stop, stop platform hole is provided on the stop of tail portion.The unique structure design of the utility model enhances the fatigue resistance of coupler knuckle for car coupler entirety, reduces stress abrasion, extends service life；Hook bolt nasal cavity and inner cavity are provided with by differential trench open and alleviates the self weight of coupler knuckle for car coupler in the case where not influencing coupler knuckle for car coupler intensity, keep hook bolt more convenient to use flexibly.

Description

A kind of novel coupler knuckle for car coupler structure

Technical field

The utility model relates to the traction buffer unit of vehicle, especially a kind of novel coupler knuckle for car coupler structure.

Background technique

Coupler and draft gear is important one of the connecting component of rolling stock, directly influence vehicle operation safety and Reliability.Wherein main component of the hitch as coupler and draft gear not only may be implemented the company between vehicle and hang, pluck solution, also Tractive force and impact force can be transmitted.Hitch can be divided into upper action type hitch and two kinds of action type hitch lower, goods according to the mode of unlocking Vehicle generally uses action type hitch, and top operation coupler simple structure, activity are flexibly；Car end is equipped with Tong Tai and windscreen, only Lower action type hitch can be used, the destructing device of lower action type hitch is located at the lower part of hook, activity action type hitch not as above Flexibly.Hitch is made of gib head, hook body, hook tail three parts, and the part of hitch front end is gib head, and hook bolt, hook are equipped in gib head Tongue pin, lock mentions pin, hook bolt pushes away iron and coupler knuckle lock.Hitch rear portion is equipped with hook tail, and vertical flat lockhole is typically recessed on hook tail, so as to It is coupled in couple yoke.The hook bolt part of hitch not only quality weight, but also be that rigid connection, applying working condition are extremely disliked with car body It is bad, it is the component that fatigue rupture most easily occurs in vehicle structure in use, coupler knuckle for car coupler is also easy to produce fatigue crack, wears It will lead to hook bolt fracture when serious, cause car body to separate, cause serious traffic accident, it, must for the safe operation for ensuring vehicle Often coupler knuckle for car coupler must be checked, carry out the replacement of coupler knuckle for car coupler in time, virtually increase the work of relevant staff The cost that work amount and vehicle use.Therefore, these problems to be resolved, it is necessary to further be changed to the structure of hitch Into promoting the fatigue resistance of coupler knuckle for car coupler in the case where mitigating coupler knuckle for car coupler quality.

Utility model content

In order to overcome the skills such as coupler knuckle for car coupler quality existing in the prior art is overweight, fatigue resistance is low, service life is short Art problem, the utility model provide a kind of novel coupler knuckle for car coupler structure.

The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of novel coupler knuckle for car coupler structure, including Hook bolt matrix, the hook bolt matrix include hook nose, wrist, hook bolt pin hole, inner cavity in hook bolt, and the inner wall of wrist is round and smooth in the hook bolt Curved surface, the hook nose lower end inside forms the face hook bolt S, and hook bolt S face inside lower end is circular arc camber, rounding off and hook nose phase Connection, hook bolt matrix upper end are equipped with concave type nasal cavity, and the oral area of the nasal cavity is trapezoidal, the coupler knuckle for car coupler matrix waist Equipped with inner cavity, the bottom surface of the inner cavity is equipped with round and smooth protrusion, and the inner cavity lower part is provided with hook bolt pin hole, the coupler knuckle for car coupler Bottom be tail portion stop, be provided with stop platform hole on the stop of tail portion.

A kind of above-mentioned novel coupler knuckle for car coupler structure, the hook bolt matrix are integrated forging molding.

A kind of above-mentioned novel coupler knuckle for car coupler structure, the hook bolt matrix surface are equipped with anticorrosion antiwear layer.

A kind of above-mentioned novel coupler knuckle for car coupler structure, the diameter of the hook bolt pin hole account for the 1/2~4/ of inner cavity slotting length 5。

A kind of above-mentioned novel coupler knuckle for car coupler structure, the groove depth of the inner cavity account for 1/6~3/ of wrist breadth degree in hook bolt 4。

The utility model has the beneficial effects that a kind of novel coupler knuckle for car coupler of the utility model uses unique hook nose and hook bolt The structure of interior wrist designs, and enhances the fatigue resistance of coupler knuckle for car coupler entirety, reduces stress abrasion, extends service life； It is provided with nasal cavity and inner cavity by differential trench open, in the case where not influencing coupler knuckle for car coupler intensity, alleviates oneself of coupler knuckle for car coupler Weight keeps hook bolt more convenient to use flexibly.

Detailed description of the invention

The present invention will be further described with reference to the accompanying drawings and examples.

Fig. 1 is utility model diagram.

1. hook nose in figure, 2. nasal cavities, 3. tail portion stops, 4. stop platform holes, 5. faces hook platform S, 6. hook bolt pin holes, 7. inner cavities, 8. wrist in hook bolt.

Specific embodiment

It is with reference to the accompanying drawing and specific real to make those skilled in the art better understand the technical solution of the utility model Mode is applied to elaborate to the utility model.

A kind of novel coupler knuckle for car coupler structure, including hook bolt matrix, the hook bolt matrix include hook nose 1, wrist 8, hook in hook bolt Tongue pin hole 6, inner cavity 7, the inner wall of wrist 8 is round and smooth curved surface in the hook bolt, and 1 lower end inside of hook nose forms the face hook bolt S 5, 5 inside lower end of the face hook bolt S is circular arc camber, and rounding off is connected with hook nose 1, and hook bolt matrix upper end is equipped with concave type nose Chamber 2, the oral area of the nasal cavity 2 be it is trapezoidal, the coupler knuckle for car coupler matrix waist is equipped with inner cavity 7, and the bottom surface of the inner cavity 7 is equipped with circle Sliding protrusion, 7 lower part of inner cavity are provided with hook bolt pin hole 6, and the bottom of the coupler knuckle for car coupler is tail portion stop 3, tail portion stop 3 On be provided with stop platform hole 4.

Specifically, the hook bolt matrix is integrated forging molding, hook bolt matrix surface is equipped with anticorrosion antiwear layer；The hook bolt The diameter of pin hole 6 accounts for the 3/4 of 7 slotting length of inner cavity, and the groove depth of the inner cavity 7 accounts for 1/2 of 8 width of wrist in hook bolt.

Above embodiments are only the exemplary embodiment of the utility model, are not used in limitation the utility model, this is practical new The protection scope of type is defined by the claims.Those skilled in the art can be in the essence and protection scope of the utility model It is interior, various modifications or equivalent replacements are made to the utility model, this modification or equivalent replacement also should be regarded as falling in originally practical new In the protection scope of type.

Claims (5)

1. a kind of novel coupler knuckle for car coupler structure, including hook bolt matrix, which is characterized in that the hook bolt matrix includes hook nose (1), hook Wrist (8), hook bolt pin hole (6), inner cavity (7) in tongue, the inner wall of wrist (8) is round and smooth curved surface in the hook bolt, under the hook nose (1) End inside forms the face hook bolt S (5), and the face hook bolt S (5) inside lower end is circular arc camber, and rounding off is connected with hook nose (1), institute Hook bolt matrix upper end is stated equipped with concave type nasal cavity (2), the oral area of the nasal cavity (2) is trapezoidal, the coupler knuckle for car coupler matrix waist Equipped with inner cavity (7), the bottom surface of the inner cavity (7) is equipped with round and smooth protrusion, and inner cavity (7) lower part is provided with hook bolt pin hole (6), The bottom of the coupler knuckle for car coupler is tail portion stop (3), is provided with stop platform hole (4) on tail portion stop (3).

2. a kind of novel coupler knuckle for car coupler structure according to claim 1, which is characterized in that the hook bolt matrix is integrated forging Cause type.

3. a kind of novel coupler knuckle for car coupler structure according to claim 1, which is characterized in that the hook bolt matrix surface is equipped with Anticorrosion antiwear layer.

4. a kind of novel coupler knuckle for car coupler structure according to claim 1, which is characterized in that the hook bolt pin hole (6) it is straight Diameter accounts for the 1/2~4/5 of inner cavity (7) slotting length.

5. a kind of novel coupler knuckle for car coupler structure according to claim 1, which is characterized in that the fluting of the inner cavity (7) is deep Degree accounts for the 1/6~3/4 of wrist in hook bolt (8) width.