CN208453007U - Hitch and its coupler body - Google Patents

Abstract

The utility model discloses a kind of hitch and its coupler body, coupler body, including upper traction table, lower traction table, lock chamber, pin hole and gusset, the gusset have gap between the side and the upper traction table of the upper traction table；The face of the root connection of the upper traction table on the coupler body is plane in setting regions.The part of top surface is plane on the hook chamber connecting with the root of traction table on coupler body, groove is no longer set, cancel gusset mutation structure simultaneously, keep structure gentle, it is horizontal to reduce upper traction table Root Stress, improve the structural strength at the upper traction table position of coupler body, keep the root of the upper traction table of coupler body not easy to break, improve the service life of coupler body, reduces the replacement and the cost of overhaul of hitch.

Description

Hitch and its coupler body

Technical field

The utility model relates to railway traffic technical fields, more specifically to a kind of hitch and its coupler body.

Background technique

Hitch be rail truck it is most basic be also one of most important component, the both ends of vehicle are installed on, for connecting Connect adjacent two section vehicles and transmitting train longitudinal force.The type of hitch is more, but most widely used hitch is articulated type Hitch, as shown in Figure 1, articulated type hitch includes that coupler body 03, hook bolt 01, hook lock, hook bolt push away the components such as iron, coupler knuckle pin 02, hook Tongue 01 can rotate the opening and closing for realizing hitch around coupler knuckle pin 02.Main carrying position inside hitch is the traction table and hook of hook bolt 01 The traction table of body 03.As shown in Fig. 2, two hitches even hang the connection for realizing two adjacent section vehicles.

It is occurred mainly under stretching operating condition currently, fracture occurs for hitch, the main carrying position of hitch is leading for hook bolt 01 Draw the traction table of platform Yu coupler body 03.As shown in figure 3, having upper traction table 03b, gusset 03c and lock chamber 03a on coupler body.Gusset 03c Extend and formed the partial sidewalls of lock chamber 03a along the front-rear direction of coupler body, gusset 03c, which is extended to, as seen from Figure 3 leads Draw the root of platform 03b, and groove is set in the junction of gusset 03c Yu the root of upper traction table 03b, so causes and upper traction It is provided with groove on the face of the root connection of platform 03b, so that the stress of the root of upper traction table 03b is relatively concentrated, easily makes coupler body The root of upper traction table produces fracture, and reduces the service life of coupler body, increases the replacement and the cost of overhaul of hitch, influences to arrange The operational safety of vehicle.

It is mesh in conclusion how effectively to extend the traction table service life of coupler body and reduce the maintenance cost of hitch Preceding those skilled in the art's urgent problem.

Utility model content

In view of this, first of the utility model is designed to provide a kind of coupler body, the structure design of the coupler body can be with Effectively extend the traction table service life of coupler body and reduce the maintenance cost of hitch, second purpose of the utility model is to mention For a kind of hitch including above-mentioned coupler body.

In order to reach above-mentioned first purpose, the utility model is provided the following technical solutions:

A kind of coupler body, including upper traction table, lower traction table, lock chamber, pin hole and gusset, the gusset are led on described Drawing has gap between the side of platform and the upper traction table；

The face of the root connection of the upper traction table on the coupler body is plane in setting regions.

Preferably, in above-mentioned coupler body, along perpendicular to the vertical plane cutting of section of the upper traction table pulling face hook Body obtains the section A2 of the upper traction table pulling face, and the minimum horizontal distance of the section A2 away from the gusset is L3, then L3 > 20mm.

Preferably, in above-mentioned coupler body, the height of the upper traction table is H1, then 20mm < H1 < 35mm.

Preferably, in above-mentioned coupler body, after the coupler body and hook bolt cooperation, the upper traction table pulling face of the coupler body and hook bolt it is upper Traction table draws face contact, and the upper traction table pulling face of hook bolt is L4 away from the distance between top surface on the hook chamber of coupler body, then 10mm > L4 > 6mm.

Preferably, it in above-mentioned coupler body, is connected between top surface and hook body by rounding off face on the hook chamber of the coupler body.

Preferably, in above-mentioned coupler body, the pulling face of the upper traction table and/or lower traction table is along close to the lock chamber Direction is divided into contact zone and makes a concession area, and the extended surface of one end close to the lock chamber of the contact zone is the face M, the then yielding Area is located at the side close to the pin hole in the face M.

Preferably, in above-mentioned coupler body, the area of making a concession is specially to be set to leading for the upper traction table and/or lower traction table Draw the inner wall of the groove on face.

Preferably, it in above-mentioned coupler body, is obtained on described along any vertical plane cutting coupler body of the excessively described pin hole axis The section U of the section T of traction table pulling face and the lower traction table pulling face；

On the section T farthest away from the vertical range between the point of the lower traction table and the axis of the pin hole be a0, Farthest away from the vertical range between the point of the upper traction table and the axis of the pin hole it is b0, then c0=on the section U | A0-b0 |, 10mm≤c0≤25mm.

Preferably, in above-mentioned coupler body, the angle between the section T and vertical plane is 0≤15 ° of 0,5 °≤α of α；

Angle between the section U and vertical plane is 0≤15 ° of 0,5 °≤β of β.

A kind of hitch, including hook bolt and coupler body, the coupler body are the coupler body as described in any one of above-mentioned.

Coupler body provided by the utility model includes upper traction table, lower traction table, lock chamber, pin hole and gusset, and wherein pin hole is used In passing through coupler knuckle pin, lock chamber is for accommodating hook lock so that hook bolt can be rotated around coupler knuckle pin.Gusset along coupler body front and back To extension, it is formed simultaneously the local interior wall of lock chamber, the front side of coupler body and hook bolt cooperate, and the rear side and vehicle of coupler body cooperate.Emphasis It is, gusset has gap, and upper traction table on the coupler body between the side and upper traction table of upper traction table The face of root connection is plane in setting regions.

It is not extend to the root of traction table on coupler body when i.e. gusset extends to the front side of coupler body, but is led on gusset and coupler body Drawing has gap between the root of platform.Meanwhile the face of the root connection of the upper traction table on coupler body is plane in setting regions, The upper top surface of coupler body hook chamber is connect with the root of upper traction table, then the upper top surface of coupler body hook chamber is plane in setting regions.I.e. The upper top surface of coupler body hook chamber is that the setting regions of plane is connect with the root of upper traction table.

In coupler body provided by the utility model, the part of top surface is flat on the hook chamber that connect with the root of traction table on coupler body Face, no longer setting groove, while cancelling gusset mutation structure, keeping structure gentle, it is horizontal to reduce upper traction table Root Stress, it mentions The structural strength at the upper traction table position of high coupler body, keeps the root of the upper traction table of coupler body not easy to break, improves making for coupler body With the service life, the replacement and the cost of overhaul of hitch are reduced.

In order to reach above-mentioned second purpose, the utility model additionally provides a kind of hitch, which includes hook bolt and hook Body, wherein coupler body is coupler body described in any of the above embodiments, therefore the hitch should also have corresponding technical effect.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is the structural schematic diagram of single hitch in the prior art；

Fig. 2 is that two hitches are in schematic diagram when connecting extension state in the prior art；

Fig. 3 is the cross-sectional view of coupler body in the prior art；

Fig. 4 is cross-sectional view of the coupler body provided by the embodiment of the utility model along horizontal plane cutting；

Fig. 5 is partial perspective view provided by the embodiment of the utility model；

Fig. 6 is cross-sectional view of the coupler body that provides of another embodiment of the utility model along horizontal plane cutting；

Fig. 7 is cross-sectional view of the coupler body provided by the embodiment of the utility model along vertical plane cutting；

Fig. 8 is the cross-sectional view of coupler body provided by the embodiment of the utility model and hook bolt cooperation；

Fig. 9 is cross-sectional view of the coupler body that provides of another embodiment of the utility model along horizontal plane cutting；

Figure 10 is cross-sectional view of the coupler body that provides of another embodiment of the utility model along horizontal plane cutting；

Figure 11 is cross-sectional view of the coupler body that provides of another embodiment of the utility model along vertical plane cutting；

Figure 12 is the cross-sectional view of coupler body provided by the embodiment of the utility model；

Figure 13 is another cross-sectional view of coupler body provided by the embodiment of the utility model.

In fig. 1-3:

01- hook bolt, 02- coupler knuckle pin, 03- coupler body, 03a- lock chamber, the upper traction table of 03b- coupler body, 03c- gusset；

In Fig. 4-Figure 13:

209- lock chamber, the upper traction table of 201- coupler body, the upper shock surface of 202- coupler body, 203- coupler body upper guard pin flange, The contact zone 211a-, 211b- make a concession area, the pin hole of 204- coupler body, the lower traction table of 205- coupler body, 206- coupler body lower shock surface, The lower guard pin flange of 207- coupler body, the upper pulling face of 210- coupler body, 214- hook chamber, is pushed up on 214a- the lower pulling face of 208- coupler body Face, 215- gusset, 216- hook body；

The lower traction table of the upper traction table of 101- hook bolt, 108- hook bolt.

Specific embodiment

First of the utility model is designed to provide a kind of coupler body, and the structure design of the coupler body can effectively extend The traction table service life of coupler body and the maintenance cost for reducing hitch, second purpose of the utility model are to provide one kind and include The hitch of above-mentioned coupler body.

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", " left side " and " right side " The orientation or positional relationship of equal instructions is to be based on the orientation or positional relationship shown in the drawings, and being merely for convenience of description, this is practical new Type and simplified description, rather than the position of indication or suggestion meaning or element must have particular orientation, with specific orientation structure At and operation, therefore should not be understood as the limitation of the utility model.In addition, term " first ", " second " are used for description purposes only, It is not understood to indicate or imply relative importance.

Please refer to Fig. 4-Figure 11, coupler body provided by the embodiment of the utility model include upper traction table 201, lower traction table 205, Chamber 209, pin hole 204 and gusset 215 are locked, wherein pin hole 204 is used to lock chamber 209 for accommodating hook lock so that hook across coupler knuckle pin Tongue can be rotated around coupler knuckle pin.Gusset 215 extends along the front-rear direction of coupler body, is formed simultaneously the local interior wall of lock chamber 209, The front side of coupler body and hook bolt cooperate, and the rear side and vehicle of coupler body cooperate.Focus on, the close upper traction table 201 of gusset 215 There is gap, and the face of the root connection of the upper traction table 201 on the coupler body is in setting area between side and upper traction table 201 It is plane in domain.

It is not extend to the root of traction table 201 on coupler body when i.e. gusset 215 extends to the front side of coupler body, but gusset 215 With on coupler body between the root of traction table 201 have gap.Meanwhile the face of the root connection of the upper traction table 201 on coupler body exists It is plane in setting regions, the upper top surface 214a of coupler body hook chamber 214 is connect with the root of upper traction table 201, then coupler body hook chamber 214 Upper top surface 214a in setting regions be plane.That is the upper top surface 214a of coupler body hook chamber 214 be plane setting regions with it is upper The root of traction table 201 connects.

In coupler body provided by the embodiment of the utility model, pushed up on the hook chamber 214 that is connect with the root of traction table 201 on coupler body The part of face 214a is plane, no longer setting groove, while cancelling 215 mutation structure of gusset, keeping structure gentle, is led with reducing It is horizontal to draw 201 Root Stress of platform, improves the structural strength at 201 position of upper traction table of coupler body, makes the upper traction table 201 of coupler body Root is not easy to break, improves the service life of coupler body, reduces the replacement and the cost of overhaul of hitch.

In one embodiment, along perpendicular to the vertical plane cutting of section of upper 201 pulling face of the traction table coupler body The section A2 of 201 pulling face of traction table is obtained, minimum horizontal distance of the section A2 away from gusset 215 is L3, then L3 > 20mm.On The section for stating 201 pulling face of traction table can be the section of upper 201 pulling face arbitrary point of traction table, cut along perpendicular to above-mentioned The vertical plane cutting in the face coupler body obtains the section A2 of 201 pulling face of traction table.Wherein, minimum of the section A2 away from gusset 215 Horizontal distance refers to that multiple points are along the minimum value in the distance of horizontal direction to gusset 215 on section A2.So set, guaranteeing It is the range of plane around upper 201 root of traction table, upper 201 root of traction table to the region between gusset 215 is flat Face, the case where having further prevented stress to concentrate.

Certainly, specific value may be set according to actual conditions in above-mentioned setting regions, is not limited thereto.Specifically, may be used To pass through the position moved the position for locking chamber 209 to the right and/or move upper traction table 201 to the left, the setting of plane is realized The realization in region.

In above-described embodiment, the height of the upper traction table 201 of coupler body is H1, then 20mm < H1 < 35mm.I.e. coupler body is upper The extended distance of traction table 201 along vertical direction is H1, then 20mm < H1 < 35mm.It specifically, can be by moving down The upper top surface 214a of hook chamber 214, the reduced height of traction table 201 in realization.Certainly, the height of the upper traction table 201 of coupler body is H1 can also be other numerical value, be not limited thereto.

Specifically, after coupler body and hook bolt cooperate, 201 pulling face of upper traction table of the coupler body and the upper traction table of hook bolt 101 traction face contacts, the upper traction table pulling face of hook bolt are L4 away from the distance between top surface 214a on the hook chamber 214 of coupler body, then 10mm > L4 > 6mm.It can be moved up by adjusting the top surface of traction table 201 on coupler body, it is high with the upper traction table 201 for reducing coupler body Degree can also realize the non-mating area height for reducing traction table 101 in traction table 201 and hook bolt on coupler body, be reduced to 6mm with Interior, the stress for further avoiding traction table 201 is concentrated.Certainly, 101 pulling face of upper traction table of hook bolt is away from the hook chamber of coupler body It can also be other numerical value that the distance between top surface 214a, which is L4, on 214, be not limited thereto.

Further, when top surface 214a is moved down on hook chamber 214 with realize adjustment coupler body upper traction table 201 height and When 201 pulling face of upper traction table of hook bolt is away from the distance between top surface 214a on the hook chamber 214 of coupler body L4, top surface on hook chamber 214 214a is no longer concordant with hook body 216 after moving down, and can pass through between top surface 214a and hook body 216 on the hook chamber 214 of coupler body at this time The connection of rounding off face avoids and generates stress concentration on hook chamber 214 between top surface 214a and hook body 216.Certainly, the hook of coupler body It can also be realized by way of increasing by 216 wall thickness of hook body concordant on chamber 214 between top surface 214a and hook body 216, do not made herein It limits.

In another embodiment, lock chamber 209 is for accommodating hook lock so that hook bolt can be around the rotation of coupler knuckle pin 116, pin hole 204 For passing through coupler knuckle pin 116.Focus on, the upper traction table 201 of coupler body and/or the pulling face of lower traction table 205 are along gradually It is divided into contact zone 211a close to the direction of lock chamber 209 and makes a concession area 211b, i.e., in upper traction table 201 and lower traction table 205 extremely Few one pulling face is divided into contact zone 211a and makes a concession area 211b, and makes a concession area 211b than contact zone 211a closer to lock Chamber 209 is divided into contact zone 211a along the direction for moving closer to lock chamber 209 that is, on pulling face and makes a concession area 211b.

In addition, the extended surface of one end of the close lock chamber 209 of contact zone 211a is the face M2, then makes a concession area 211b and be located at the face M2 Close pin hole 204 side.If the first end of contact zone 211a is connect with area 211b is made a concession, the above-mentioned face M2 is contact zone The extended surface of the first end of 211a, and area 211b is made a concession between the face M2 and pin hole 204.Make when above-mentioned coupler body is in normally When with state, the section in the face M2, the section of contact zone 211a and section for making a concession area 211b that are obtained along horizontal plane cutting coupler body Face, the section in the face M2 are the extended line in the section of contact zone 211a, and the section for making a concession area 211b is located at section and the pin hole in the face M2 Between 204 section.

When cooperating using coupler body provided by the embodiment of the utility model and hook bolt, the pulling face of the upper traction table 201 of coupler body It offsets with the traction face contact of the upper traction table 101 of hook bolt, the pulling face of the lower traction table 205 of coupler body and the lower traction table of hook bolt 108 traction face contact offsets, and the traction table of coupler body is located at the side of the close pin hole 204 of the traction table of hook bolt.Due to It is provided on the upper traction table 201 and/or lower traction table 205 of coupler body and makes a concession area 211b, and made a concession area 211b and be located at contact zone The side of the close pin hole 204 of 211a extended surface, therefore when coupler body provided by the embodiment of the utility model and hook bolt cooperation, coupler body Upper traction table 201 and/or lower traction table 205 on pulling face on the traction table for making a concession area 211b and hook bolt on pulling face Between there is gap cannot contact, while the contact on the upper traction table 201 of coupler body and/or the pulling face on lower traction table 205 Pulling face on area 211a and the traction table of hook bolt is bonded to each other contact and the two does not have gap.

So set, due to make a concession area 211b be located at contact zone 211a close to lock chamber 209 side and make a concession area 211b and Have between the traction table of hook bolt and gap and do not contact, thus increase coupler body upper traction table 201 and/or lower traction table 205 with The edge of the traction table contact area of hook bolt away from lock chamber 209 distance so that coupler body and hook bolt cooperation contact carrying position away from The distance for locking chamber 209 and locking face increases, and then the cooperation contact carrying position of coupler body and hook bolt is far from structure sudden change region, from And the stress level of traction table up and down of coupler body and hook bolt is reduced, the traction table for avoiding coupler body and hook bolt occurs to early fracture and asks Topic, extends the service life of coupler body and hook bolt, while reducing the maintenance cost of hitch.

In one embodiment, it makes a concession first end and the relief area 211a connection of area 211b and second end is separate contacts Area, i.e. yielding area 211b along being respectively first end and second end close to the both ends in direction of lock chamber 209, wherein first end with it is non- Contact zone 211a connection, second end is than first end far from relief area 211a.The front side of the coupler body is used to cooperate with hook bolt, the hook The rear side of body is used to be cooperatively connected with vehicle, when which is in normal operating condition, the left side of left and right side and vehicle Consistent with right side, i.e., the coupler body is vertical along the direction in left side to right side and the direction of vehicle driving.Wherein, the coupler body is along a left side The first end of area 211b is made a concession to second end along the in side to right side and be the first extending direction perpendicular to the direction of pin hole axis The extended distance of one extending direction is L2,60mm > L2 > 10mm.It so ensure that the cooperation contact carrying position of coupler body and hook bolt It sets the distance away from lock chamber 209 to be greater than 10mm and be less than 60mm, for example can be 12mm, 15mm etc., and then effectively reduce coupler body The stress of traction table.Specifically, make a concession area 211b first end different location along the first extending direction to second end not Extended distance with position is L2.

Preferably, making a concession area 211b can be specially the pulling face for being set to traction table 201 and/or lower traction table 205 On groove inner wall.Groove directly so is opened up on the pulling face of upper traction table 201 and/or lower traction table 205, is grasped It is simpler convenient to make.

In another embodiment, it is obtained along any vertical plane cutting coupler body for 204 axis of pin hole for crossing coupler body The section U of the section T of upper 201 pulling face of traction table and lower 205 pulling face of traction table, section T and section U is lines at this. Upper 201 pulling face of traction table is upper pulling face 210, and lower 205 pulling face of traction table is lower pulling face 208.I.e. along vertical When the cutting coupler body of face, vertical plane need to cross 204 axis of pin hole, upper pulling face 210 and the lower pulling face 208 of coupler body simultaneously, so Available section T and section U.

It farthest away from the vertical range between the point of lower traction table 205 and the axis of pin hole 204 is k0 on section T, on section U Farthest away from upper traction table 201 point and pin hole 204 axis between vertical range be m0, then n0=| k0-m0 |, 10mm≤n0 ≤25mm.The above-mentioned point farthest away from lower traction table 205 is the maximum point of distance away from lower traction table 205 on section T.Farthest away from The point of upper traction table 201 is the maximum point of distance away from upper traction table 201 on section U.It should be noted that working as upper pulling face 210 and lower pulling face 208 when being connected by the other positions of rounding off face and coupler body, then upper pulling face 210 and round and smooth mistake Cross that distance of the junction in face away from lower traction table 205 is maximum, the tie point of the section in section T and rounding off face is away from lower traction table 205 is farthest；Similarly, the junction in lower pulling face 208 and rounding off face is away from maximum at a distance from upper traction table 201, section U with The tie point of the section in rounding off face is farthest away from upper traction table 201.

In above-described embodiment, k0 > m0 or k0 < m0 is ok, is not limited thereto.

Or, it may also be said to the vertical range between the upper extreme point of section T and the axis of pin hole 204 is k0's and section U Vertical range between lower extreme point and the axis of pin hole 204 is m0, then n0=| k0-m0 |, 10mm≤n0≤25mm.Each embodiment In, when being in normal use with coupler body up and down above and below orientation it is identical.

In coupler body provided by the embodiment of the utility model, by the upper traction table 201 of coupler body and lower traction table 205 in level side Be staggered setting upwards, and the root of the upper traction table 201 and lower traction table 205 that avoid coupler body is on same vertical direction, on The root of traction table 201 and lower traction table 205 is high-stress area weak part, and then realizes the upper traction table 201 of coupler body It is dislocatedly distributed with the high-stress area weak part of lower traction table 205, greatly reduces the stress of upper and lower traction table 205.On in addition, Within the scope of offsetting amount 5mm~25mm of traction table 201 and lower traction table 205, offsetting amount is more reasonable, make traction table and shock testing machine away from From will not be excessively close, and then avoid the structure abrupt change between coupler body traction table and shock testing machine and the position stress is caused to be disliked Change.To sum up, coupler body provided by the embodiment of the utility model can reduce stress, avoid upper and lower traction table 205 that fracture occurs to early Problem extends the service life of coupler body, reduces maintenance cost, improves transportation safety reliability.

In one embodiment, the angle between section T and vertical plane is 0≤15 ° of 0,5 °≤α of α.Section U and vertical Angle between face is 0≤15 ° of 0,5 °≤β of β.I.e. upper pulling face and lower pulling face are obliquely installed relative to vertical plane, upper traction Face is α 0 relative to vertical plane tilt angle, and lower pulling face can phase relative to the value that vertical plane tilt angle is β 0, α 0 and β 0 Together, it can also be different, be not limited thereto.

The utility model it is another implement provide coupler body include upper guard pin flange 203, upper shock testing machine, upper traction table 201, under Guard pin flange 207, lower shock testing machine, lower traction table 205 and pin hole 204, wherein pin hole 204 is used for across coupler knuckle pin.Hook bolt and hook After body cooperation is even hung, the neck of hook bolt is located between the upper traction table 201 of coupler body and lower traction table 205, and the upper guard pin of hook bolt is prominent Carrying, the pulling face of the lower guard pin flange of hook bolt are realized in the pulling face cooperation of the upper guard pin flange 203 of the pulling face and coupler body of edge Carrying is realized in pulling face cooperation with the lower guard pin flange 207 of coupler body；Meanwhile hook bolt upper shock testing machine shock surface and coupler body it is upper Carrying is realized in the cooperation of shock testing machine shock surface, and the lower shock testing machine shock surface cooperation of the lower shock testing machine shock surface and coupler body of hook bolt, which is realized, holds It carries；Carrying, the lower traction of hook bolt are realized in 201 pulling face of the upper traction table cooperation of 101 pulling face of upper traction table and coupler body of hook bolt Carrying is realized in the cooperation of 205 pulling face of lower traction table of 108 pulling face of platform and coupler body.

Focus on, along the vertical plane of the section perpendicular to upper shock testing machine shock surface or along perpendicular to upper guard pin flange The vertical plane cutting of the section of the 203 pulling faces coupler body obtains section I and the impact of upper guard pin flange 203 of shock testing machine shock surface The section J in face, minimum horizontal distance between section I and section J are f, and 15mm≤f≤30mm.That is the upper shock testing machine of coupler body The i.e. upper shock surface 202 of shock surface is curved surface, and the vertical plane vertical with the section of upper shock testing machine shock surface of coupler body is the 5th vertical Face, and the section of above-mentioned upper shock testing machine shock surface can be the section of any position on upper shock testing machine shock surface.Upper guard pin flange 203 pulling faces be curved surface, the vertical plane vertical with the section of upper 203 pulling face of guard pin flange be the 6th vertical plane, and it is above-mentioned on The section of 203 pulling face of guard pin flange can be the section of any position on upper 203 pulling face of guard pin flange.It is vertical along the 5th Face or the 6th vertical plane cutting coupler body obtain the section I of shock testing machine shock surface and the section of upper 203 shock surface of guard pin flange J, i.e. the 5th vertical plane intersect with upper 203 pulling face of guard pin flange and upper shock testing machine shock surface, vertical along the 5th to realize The section I of shock testing machine shock surface and the section J of upper 203 shock surface of guard pin flange can be obtained when the face cutting coupler body simultaneously. Similarly, the 6th vertical plane intersects with upper 203 pulling face of guard pin flange and upper shock testing machine shock surface, perpendicular along the 6th to realize The section I of shock testing machine shock surface and the section of upper 203 shock surface of guard pin flange can be obtained when facing the cutting coupler body directly simultaneously J。

Minimum horizontal distance between above-mentioned section I and section J is f, and 15mm≤f≤30mm.Above-mentioned minimum level away from From the minimum value on specially section I in the horizontal distance of the section J of multiple positions extremely.Section I and section J is lines.

In addition, along the vertical plane of the section perpendicular to lower shock testing machine shock surface or along perpendicular to lower guard pin flange 207 The vertical plane cutting of the section of the pulling face coupler body obtains the section K and lower 207 shock surface of guard pin flange of lower shock testing machine shock surface Section M, minimum horizontal distance between section K and section M is g, and 15mm≤g≤30mm.That is the lower shock testing machine punching of coupler body Hitting face and descending shock surface 206 is curved surface, and the vertical plane vertical with the section of lower shock testing machine shock surface of coupler body is the 7th vertical plane, And the section of above-mentioned lower shock testing machine shock surface can hit the section of any position on platform shock surface for undershoot.Lower guard pin flange 207 Pulling face is curved surface, and the vertical plane vertical with the section of lower 207 pulling face of guard pin flange is the 8th vertical plane, and above-mentioned lower guard pin The section of 207 pulling face of flange can be the section of any position on lower 207 pulling face of guard pin flange.Along the 7th vertical plane or The 8th vertical plane cutting coupler body obtains the section K of lower shock testing machine shock surface and the section M of lower 207 shock surface of guard pin flange, i.e., 7th vertical plane intersects with lower 207 pulling face of guard pin flange and lower shock testing machine shock surface, is cutd open with realizing along the 7th vertical plane The section K of lower shock testing machine shock surface and the section M of lower 207 shock surface of guard pin flange can be obtained when cutting the coupler body simultaneously.Equally Ground, the 8th vertical plane intersect with lower 207 pulling face of guard pin flange and lower shock testing machine shock surface, to realize along the 8th vertical plane The section K of lower shock testing machine shock surface and the section M of lower 207 shock surface of guard pin flange can be obtained when the cutting coupler body simultaneously.

Minimum horizontal distance between above-mentioned section K and section M is g, and 15mm≤g≤30mm.Above-mentioned minimum level away from From the minimum value on specially section K in the horizontal distance of the section M of multiple positions extremely.Section K and section M is lines.

In coupler body provided by the embodiment of the utility model, by adjusting the shock testing machine and guard pin flaunching structure of coupler body, make hook The shock testing machine and guard pin flange distance value of body are 15-30mm, improve the structural strength of coupler body guard pin flange, and make shock testing machine It is increased at a distance from traction table, keeps shock testing machine excessively gentle with traction table, drop stress concentration, improved intensity, hook bolt is avoided to protect Breakage problem occurs to early in transition region between pin flange, shock testing machine and traction table, and then extends the service life of hitch, reduces The maintenance cost of hitch.

In above-mentioned coupler body, it is preferable that along the vertical plane of the section perpendicular to 204 inner wall of pin hole or along perpendicular to upper The vertical plane cutting of the section of 203 pulling face of the guard pin flange coupler body obtain 204 inner wall of pin hole section N and upper guard pin flange The section O of 203 shock surfaces, minimum horizontal distance between section N and section O are h, and 15mm≤h≤30mm.That is the present embodiment 204 inner wall of pin hole of middle coupler body is cylindrical surface, and the vertical plane vertical with the section of 204 inner wall of pin hole of coupler body is the 13rd vertical Face, and the section of 204 inner wall of above-mentioned pin hole can be the section of any position on 204 inner wall of pin hole.Upper guard pin flange 203 is drawn Face is curved surface, and the vertical plane vertical with the section of upper 203 pulling face of guard pin flange is the 14th vertical plane, and above-mentioned upper guard pin is prominent The section of 203 pulling face of edge can be the section of any position on upper 203 pulling face of guard pin flange.Along the 13rd vertical plane or The 14th vertical plane cutting coupler body obtains the section N of 204 inner wall of pin hole and the section O of upper 203 shock surface of guard pin flange, i.e., and 13 vertical planes intersect with upper 203 pulling face of guard pin flange and 204 inner wall of pin hole, to realize along the 13rd vertical plane cutting The section N of 204 inner wall of pin hole and the section O of upper 203 shock surface of guard pin flange can be obtained when the coupler body simultaneously.Similarly, 13 vertical planes intersect with upper 203 pulling face of guard pin flange and 204 inner wall of pin hole, to realize along the 13rd vertical plane cutting The section N of 204 inner wall of pin hole and the section O of upper 203 shock surface of guard pin flange can be obtained when the coupler body simultaneously.

Minimum horizontal distance between above-mentioned section N and section O is h, and 15mm≤h≤30mm.Above-mentioned minimum level away from From the minimum value on specially section N in the horizontal distance of the section O of multiple positions extremely.Section N includes two lines item, section O It is lines.

Furthermore it is also possible to along the vertical plane of the section perpendicular to 204 inner wall of pin hole or along perpendicular to lower guard pin flange The vertical plane cutting of the section of the 207 pulling faces coupler body obtains the section P and lower 207 shock surface of guard pin flange of 204 inner wall of pin hole Section Q, minimum horizontal distance between section P and section Q is i, and 15mm≤i≤30mm.I.e. in the present embodiment, coupler body 204 inner wall of pin hole is cylindrical surface, and the vertical plane vertical with the section of 204 inner wall of pin hole of coupler body is the 15th vertical plane, and on The section for stating 204 inner wall of pin hole can be the section of any position on 204 inner wall of pin hole.Lower 207 pulling face of guard pin flange is song Face, the vertical plane vertical with the section of lower 207 pulling face of guard pin flange are the 16th vertical plane, and above-mentioned lower guard pin flange 207 The section of pulling face can be the section of any position on lower 207 pulling face of guard pin flange.Along the 15th vertical plane or the tenth The six vertical plane cutting coupler bodies obtain the section P of 204 inner wall of pin hole and the section Q of upper 203 shock surface of guard pin flange, i.e., and the ten five Vertical plane intersects with lower 207 pulling face of guard pin flange and 204 inner wall of pin hole, to realize along the 15th vertical plane cutting hook The section P of 204 inner wall of pin hole and the section Q of lower 207 shock surface of guard pin flange can be obtained when body simultaneously.Similarly, the ten six Vertical plane intersects with lower 207 pulling face of guard pin flange and 204 inner wall of pin hole, to realize along the 16th vertical plane cutting hook The section P of 204 inner wall of pin hole and the section Q of lower 207 shock surface of guard pin flange can be obtained when body simultaneously.

The coupler body provided in based on the above embodiment, the utility model additionally provide a kind of hitch, which includes hook bolt And coupler body, wherein coupler body is coupler body described in any of the above-described embodiment.Since the hitch uses the coupler body in above-described embodiment, So the beneficial effect of the hitch please refers to above-described embodiment.

Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other The difference of embodiment, the same or similar parts in each embodiment may refer to each other.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The widest scope consistent with features of novelty.

Claims (10)

1. a kind of coupler body, including upper traction table (201), lower traction table (205), lock chamber (209), pin hole (204) and gusset (215), which is characterized in that the side of the close upper traction table (201) of the gusset (215) and the upper traction table (201) there is gap between；

The face of the root connection of the upper traction table (201) on the coupler body is plane in setting regions.

2. coupler body according to claim 1, which is characterized in that along perpendicular to upper traction table (201) pulling face The vertical plane cutting of the section coupler body obtains the section A2 of upper traction table (201) pulling face, and the section A2 is away from the muscle The minimum horizontal distance of plate (215) is L3, then L3 > 20mm.

3. coupler body according to claim 1, which is characterized in that the height of the upper traction table (201) is H1, then 20mm < H1 < 35mm.

4. coupler body according to claim 1, which is characterized in that after the coupler body and hook bolt cooperation, the upper traction table of the coupler body (201) pulling face and the upper traction table (101) of hook bolt draw face contact, and upper traction table (101) pulling face of hook bolt is away from coupler body The distance between top surface (214a) is L4 on hook chamber (214), then 10mm > L4 > 6mm.

5. coupler body according to claim 1, which is characterized in that top surface (214a) and hook on the hook chamber (214) of the coupler body Body is connected between (216) by rounding off face.

6. coupler body according to claim 1, which is characterized in that the upper traction table (201) and/or lower traction table (205) Pulling face along close to it is described lock chamber (209) direction be divided into contact zone (211a) and yielding area (211b), the contact zone The extended surface of the one end close to lock chamber (209) of (211a) is the face M2, then the yielding area (211b) is located at the face M2 Close to the pin hole (204) side.

7. coupler body according to claim 6, which is characterized in that the yielding area (211b) is specially to be set on described to lead Draw the inner wall of the groove on the pulling face of platform (201) and/or lower traction table (205).

8. coupler body according to claim 1, which is characterized in that along any vertical plane of excessively described pin hole (204) axis The cutting coupler body obtains the section T of upper traction table (201) pulling face and the section U of the lower traction table (205) pulling face；

Farthest away from the vertical range between the point of the lower traction table (205) and the axis of the pin hole (204) on the section T For k0, on the section U farthest away between the point and the axis of the pin hole (204) of the upper traction table (201) it is vertical away from From for m0, then n0=| k0-m0 |, 10mm≤n0≤25mm.

9. coupler body according to claim 8, which is characterized in that the angle between the section T and vertical plane be 0,5 ° of α≤ α0≤15°；

Angle between the section U and vertical plane is 0≤15 ° of 0,5 °≤β of β.

10. a kind of hitch, including hook bolt and coupler body, which is characterized in that the coupler body is as claim 1-9 is described in any item Coupler body.