CN101100161A

CN101100161A - Coupling device between traction tool especially small passenger car and trailer like

Info

Publication number: CN101100161A
Application number: CNA2007101475686A
Authority: CN
Inventors: 王春江
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-28
Filing date: 2007-08-28
Publication date: 2008-01-09
Anticipated expiration: 2027-08-28
Also published as: CN100519237C

Abstract

The present invention relates to towing tool, and is especially one kind of connecting unit for wagon, vehicle trailer, etc. The connecting unit includes one U-hook and one towing journal in the towing side, one connector in the towed side, one outer sliding sleeve and one towed support for connecting the above said parts and obtaining one 360 deg transverse rotation angle, one universal ball with connecting shaft hole for connecting to the towing journal and obtaining one 20 deg vertical and horizontal swing angle. It has the capacity of obtain minimum turning radius, convenient connecting and disconnecting and flexible rotation.

Description

Be positioned at the particularly connecting device between tir such as wagon and trailer of drafting tool

Technical field

The present invention relates to a kind of drafting tool that is positioned at, the connecting device between tir such as wagon and trailer particularly, this connecting device has a U-shaped towing hook and traction axle journal, it is positioned at wagon afterbody downside middle position, the universal spheroid that is connected axis hole with a joint coupling and perforation, it is positioned at the tir side and is enclosed within on the traction axle journal.

Background technology

Connecting device has the U-shaped towing hook and the traction axle journal that are installed in the drafting tool side, with a universal spheroid that is connected axis hole at the adaptor union and the band thereof of tir side, the perforation of this spheroid connects axis hole and is enclosed within downwards on the traction axle journal from the upper end, this connecting device exists under the situation of bigger pivot angle between the longitudinal axis of drafting tool side and tir side, tir is connected or disengaging.Connect between body and the outer sliding sleeve and can do the 360 ° of rotations in horizontal border; By the oscillating axle swing of universal spheroid sphere realization greater than 20 ° vertical and level, do the border around sphere and rotate the turn radius that to realize minimum, the said structure characteristics have realized convenient, flexible universal traction, possess the advantage of the road conditions that adapt to various rugged complexity.Based on these characteristics, this connecting device can be applied to such as on the more rigorous transportation means of profile such as wagon and texture ratio, can take to strengthen or reduce simultaneously the method for scantling of structure, adjusts and adapt to the requirement of tracted load.

Summary of the invention

(1), the technical matters that will solve

The objective of the invention is at the deficiencies in the prior art, a kind of wide adaptability is provided, the coupling hitch of compact conformation, light practicality, it is specially adapted to wagon etc. to the connecting device between the tirs such as rigorous drafting tool of structure and shape requirement and trailer.

(2) technical scheme

For achieving the above object, the present invention adopts following technical scheme:

Particularly tir such as wagon and the trailer connecting device of asking of drafting tool that is positioned at of the present invention, comprise the U-shaped towing hook and the traction axle journal of drafting tool side and be positioned at tir side bracket front end with traction axle journal bonded assembly joint coupling.

Described traction U-shaped towing hook, cast or hard steel forges and to process with cast steel, if be used for wagon, then the U-shaped towing hook is installed between two parties in wagon afterbody downside, the main connecting panel of its front portion is loaded on the rear bumper the inside, with structure and the profile of not destroying wagon.The traction axle journal of rear upper end keeps plumbness, the hat nut screws the back and locks with jackscrew, the profile that can keep the wagon afterbody when not pulling tir to greatest extent, the structure construction that realization is additional to the drafting tool side is simple, in light weight, attractive in appearance, practical.

Described joint coupling, its adaptor union body and function cast steel is made, multi-directional ball body and function bearing steel or hard steel are made, and the perforation center connects axis hole, edge is with brass bushing in the adaptor union axon hole, universal spheroid is limited in the connection body securely, and keeps spheroid to rotate flexibly, have the non-lubricating function simultaneously.Adaptor union body rod portion studs with brass bushing, and laterally border rotation flexibly between the outer sliding sleeve, and the installation of adaptor union is realized in outer sliding sleeve and tir bracket welding back.

(3) beneficial effect

The advantage and the good effect of coupling hitch of the present invention are: the present invention includes draw gear that is positioned at the drafting tool side and the universal coupling hitch that is positioned at the tir side, its drafting tool side additional simple in structure, light, be convenient to install, reduce to minimum to profile, the appearance effects of drafting tool; It is positioned at the joint coupling compact conformation of tir side, multiple functional, good looking appearance, and a kind of later-model simple, light, practical coupling hitch is provided.

Description of drawings

Fig. 1 is the cutaway view of coupling hitch of the present invention;

Fig. 2 is the U-shaped towing hook scheme drawing that is positioned at the drafting tool side;

Fig. 3 is joint coupling and and the bracket bonded assembly profile scheme drawing that is positioned at the tir side.

Among the figure: 1, U-shaped towing hook; 2, traction axle journal; 3, hat nut; 4, locking jackscrew; 5, adaptor union; 6, copper sheathing; 7, universal spheroid; 8, connect axis hole; 9, preceding buting iron; 10, recoil spring; 11, back catch; 12, copper sheathing; 13, outer sliding sleeve; 14, nut; 15, lock Xiao; 16, bracket; 17, wagon afterbody; 18, connecting panel; 19, secondary connecting panel; 20, vertical brace panel; 21, side brace panel; 22, bolt hole.

The specific embodiment

Below in conjunction with accompanying drawing, further describe and of the present inventionly be positioned at the particularly specific embodiment of the connecting device between tir such as wagon and trailer of drafting tool, but be not used for limiting protection scope of the present invention.

As Fig. 1, Fig. 2, shown in Figure 3, the present invention includes the draw gear that is positioned at the drafting tool side, when being used for wagon, it should be U-shaped towing hook 1, and the towing hook front end is installed on wagon afterbody 17 downside middle positions.The main connecting panel 18 of its front portion is loaded on rear bumper the inside, outside, wagon rear end panel bottom, by tie bolt hole 22, with bolt on through the wagon rear end panel crossbeam of strengthening, about secondary connecting panel 19, be fixed by bolts to below the spare wheel seat lower shoe, from what see in appearance is that the U-shaped towing hook lays out under rear bumper, and the towing hook rear upper end is traction axle journal 2; Can adopt other traction bodies such as arm-tie when being used for other for the undemanding towing instrument of good looking appearance requirement, and the method that traction axle journal 2 is installed thereon.Be positioned at the joint coupling 5 of tir side, be installed on the front end of tir bracket 16 by its outer sliding sleeve 13; When connecting, it connects axis hole 8 and is inserted in coupling with it on the traction axle journal 2, is screwed down the back with hat nut 3 and holds out against with locking jackscrew 4, prevents that hat nut 3 from getting loose voluntarily.Then unclamp jackscrew 4 during disengaging, turn on hat nut 3, pluck, twist back hat nut 3 and afterwards jackscrew 4 is tightened from adaptor union 5.

Described traction axle journal 2 forges processing with U-shaped towing hook 1 usefulness cast steel or hard steel, and axle journal 2 also can monomer be installed on connecting panel after with hard steel processing.

Described adaptor union 5 is forged by cast steel or hard steel, edge is with copper sheathing 6 in its front aperture, make universal spheroid 7 be stabilized in the copper sheathing 6 and keep flexible sliding mode, make universal spheroid 7 in copper sheathing 6, do the horizontal 360 ° of rotations of vertical shaft and vertical and the pivot angle of horizontal direction on every side greater than 20 °.The postero lateral arm portion of adaptor union 5 inlays with copper sheathing 12, and keeps sliding mode between the outer sliding sleeve 13; Plugging lock Xiao 15 after outer sliding sleeve 13 rear ends screw with nut 14 prevents to get loose; Recoil spring 10 is between preceding buting iron 9 and back catch 10, and tool cushions and be adjacent to effect; Make connect body outside in the sliding sleeve laterally the border rotate.

This coupling hitch obtains the pivot angle greater than 20 ° vertical and level between traction axle journal 2 and adaptor union 5, and minimum limit turn radius, between tractor 5 and outer sliding sleeve 13, obtain 360 ° horizontal angle of rotation, make and realized universal flexibly traction between drafting tool and the tir, possessed the advantage that various rugged complex road conditions travel.Simultaneously, by strengthening or reducing scantling of structure, can adapt to the requirement of different tracted load.

Do not need lay special stress on, the present invention is not limited in an illustrated embodiment.Therefore, traction axle journal 2 can place the tir side, and adaptor union 5 also can place the drafting tool side, and also available other materials such as adaptor union 5 and universal spheroid 7, copper sheathing 6,12 and method are made, and recoil spring 10 also can be a waveform splinter.To be stabilized in the adaptor union and enough angle and the transverse and longitudinal sliding problem of adaptor union between outer sliding sleeve of flexible rotation because the problem of considering only is a tape spool hole globoid.According to content disclosed by the invention, those of ordinary skill in the art can conspicuously expect some identical, replacement schemes, all should fall into the scope of protection of the invention.

Claims

1, a kind of drafting tool that is positioned at, the connecting device between tir such as wagon and trailer particularly, the draw gear that this connecting device is positioned at the drafting tool side is U-shaped towing hook (1) and traction axle journal (2) thereof, it is characterized in that being installed on the inboard of wagon afterbody (17) downside middle position, what expose only is the latter half of of U-shaped towing hook (1) and traction axle journal (2) and hat nut (3); The connecting device of tir side is joint coupling (5), can obtain the horizontal 360 ° anglec of rotation after it is characterized in that adaptor union (5) and tir bracket (16) being connected, the connection axis hole (8) of the universal spheroid (7) by adaptor union (5) front end is inserted in traction axle journal (2) afterwards, slip between universal spheroid (7) and the copper sheathing (6) makes between tir and drafting tool and to realize minimum turn radius, with the pivot angle greater than 20 ° vertical and level.

2, U-shaped towing hook according to claim 1 (1), it is characterized in that it being to process with cast steel or hard steel, be installed on the inboard middle position of wagon afterbody downside (17) bumper/spoiler, what expose only is the latter half of U-shaped towing hook (1), and its upper end can be that the hat nut (3) on traction axle journal (2) and top also can be spherical to be connected bulb or other draw connection structure.

3, traction axle journal according to claim 1 (2), it is characterized in that it being that cast steel or hard steel are made, under have axle bed, on screw thread attach the names of pre-determined candidates shape nut (3) or spherical nut are arranged, can be positioned at the top of U-shaped towing hook (1), also can be positioned on other structures such as the connecting panel.

4, joint coupling according to claim 1, the rear portion that it is characterized in that adaptor union (5) is by obtaining horizontal 360 ° angle of rotation between copper sheathing (12) and the outer sliding sleeve (13); Adaptor union (5) is anterior by the slip between copper sheathing (6) and the universal spheroid (7), can rotate horizontal border, the turn radius of acquisition minimum and vertical and horizontal hunting angle greater than 20 °, its material of main part can be cast steel or hard steel, spheroid (7) is bearing steel or hard steel, also can be other materials, copper sheathing also can be other non-metallic materials.