CN2349099Y

CN2349099Y - Semi-trailer type tractive unit

Info

Publication number: CN2349099Y
Application number: CN 98251107
Authority: CN
Inventors: 王岳
Original assignee: Zhenjiang Baohua Semi Trailer Parts Co ltd
Current assignee: Zhenjiang Baohua Semi Trailer Parts Co ltd
Priority date: 1998-12-22
Filing date: 1998-12-22
Publication date: 1999-11-17
Anticipated expiration: 2008-12-22

Abstract

The utility model relates to a special component of an automobile, which is composed of a hauling hook, a wedge, a pull ring, a pull rod, an oscillating lever, a spring, a saddle body, etc., wherein, two bulges are respectively arranged at both sides of the opening point of the hauling hook on the saddle body. The utility model has the advantages of operational reliability, high safety, long service life, more convenient replacement, and more convenient maintenance.

Description

Semi-trailer vehicle traction seat

The utility model relates to a kind of automobile component, particularly a kind of draw gear of semi-trailer automobile.

Traction seat is the vitals of semi-trailer automobile, and its effect is the compartment that connects, affects the rear portion.Now the traction seat of Sheng Chaning has single degree of freedom (being mono-pendulum type) and two kinds of structures of double freedom (being double pendulum type), on the structure generally by hauling hook 1, voussoir 2, draw ring 3, pull bar 4, fork 5, spring 6,7 compositions such as grade, its principle of work and process following (referring to Fig. 1): when wanting separation compartment, manually outwards spur draw ring, its application force passes through pull bar, fork moves the voussoir that pins hauling hook, hauling hook rotates around key seat 12 under the effect of spring, (step that rotates simultaneously on the rear towing hook withstands voussoir to open opening, voussoir is stopped), thereby breaking away from hauling hook, the towing pin in compartment can realize separating; In the time will connecting the compartment, earlier the hauling hook opening is opened by above-mentioned steps, then the hauling hook opening is aimed at the towing pin in compartment, move behind the automobile, the towing pin bump hauling hook in compartment makes hauling hook make return around lock and rotates, the hauling hook bag pins towing pin, the top step that stops voussoir separates with voussoir with the rotation of hauling hook simultaneously, and voussoir is homing under the effect of spring, realizes the self-locking of hauling hook.Towing pin is a cylinder, and protruding rank are arranged up and down, middle part and hauling hook free-running fit, and the diameter on the protruding rank of towing pin is greater than the bore of lock ring mouth, and in a single day towing pin enters the traction mouth of hook and has just realized that with hauling hook failure-free is connected like this.Because the structure of above-mentioned traction seat, when being used as the compartment connection, azel when requiring towing pin and hauling hook open butt joint is consistent, and this requirement is than higher, if the butt joint azel occurs when inconsistent, Zhuan Ji consequence may make hauling hook etc. suffer serious damage by force.In fact the damages such as hauling hook that the present traction seat that uses causes for above-mentioned reasons are common.

The purpose of this utility model just is to overcome above-mentioned the deficiencies in the prior art part, and a kind of failsafety such as hauling hook, the more reliable vehicle traction of semi-trailer easily seat of work of effectively preventing is provided.

The purpose of this utility model is achieved in that

A kind of semi-trailer vehicle traction seat is made up of hauling hook, voussoir, draw ring, pull bar, fork, spring, saddle body etc., is positioned at both sides, hauling hook opening entrance at said saddle body two projections are set respectively.

Distance between said two projections is equal to or greater than the bore of hauling hook, and the thickness of two projections equates with the thickness of hauling hook.

The removable mouth on one side that is fixed with on the said saddle body.

Below in conjunction with accompanying drawing the utility model embodiment is elaborated.

Fig. 1 is the utility model example structure figure (looking up);

Fig. 2 is the local figure of the utility model embodiment (overlooking);

Fig. 3 is Fig. 2 A-A view.

The utility model semi-trailer vehicle traction seat is by hauling hook 1, voussoir 2; compositions such as draw ring 3, pull bar 4, fork 5, spring 6,7, saddle body 8; for protecting parts such as hauling hook effectively; be positioned at hauling hook opening entrance at the saddle body two projections 9,10 are set; the thickness of two projections equates that with the thickness of hauling hook two projections can be welded on the saddle body.The effect of this two projection is: when the open butt joint of compartment towing pin and hauling hook, when if azel is inconsistent, at first towing pin collides mutually with projection earlier, if extent of deviation is little, thereby then the towing pin opening that can enter hauling hook under the guiding of projection Transition edges steadily achieves a butt joint smoothly.If deviation is excessive, then towing pin is blocked the opening that can not enter hauling hook, needs butt joint again.Find also in actual the use that the parts of easy loss also have the limit mouth 11 of corresponding hauling hook on the saddle body, the limit mouth on the existing traction seat saddle body of producing can't be changed all with saddle body weld together, loses as if the limit mouth, then the saddle body must be changed together.Therefore for avoiding this situation, in the present embodiment limit mouth of saddle body made parts independently, again the limit mouth detachably is fixed on the saddle body.

Compared with prior art, the utlity model has following advantage:

1. because being provided with two projections that are fixed on the saddle body, effectively make draw hook etc. important Parts have improved the worker of device greatly because of the impact of the inconsistent generation of docking azel Make reliability and safety.

2. the detachable structure of the limit mouth of saddle body has improved the service life of device greatly, Change, keep in repair more convenient.

Claims

1. a semi-trailer vehicle traction seat is made up of hauling hook, voussoir, draw ring, pull bar, fork, spring, saddle body etc., it is characterized in that: be positioned at both sides, hauling hook opening entrance at said saddle body two projections are set respectively.

2. according to the described semi-trailer vehicle traction of claim 1 seat, it is characterized in that: the distance between said two projections is equal to or greater than the bore of hauling hook, and the thickness of two projections equates with the thickness of hauling hook.

3. semi-trailer vehicle traction seat according to claim 1 and 2 is characterized in that: the removable mouth on one side that is fixed with on the said saddle body.