CN204915878U

CN204915878U - Semitrailer pulls seat

Info

Publication number: CN204915878U
Application number: CN201520592347.XU
Authority: CN
Inventors: 刘玉梅; 葛琦; 熊明烨; 张宏涛; 郭艳秀; 卢政旭; 杨思航; 乔宁国; 赵聪聪; 陈云; 张志远; 刘祖光
Original assignee: Jilin University
Current assignee: Jilin University
Priority date: 2015-08-03
Filing date: 2015-08-03
Publication date: 2015-12-30
Anticipated expiration: 2025-08-03

Abstract

The utility model relates to a semitrailer pulls seat, including split type bedplate, support and separation - coupling mechanism. Wherein split type bedplate mainly comprises bedplate base member, central authorities apron and wearing ring, and central cover connection is on the bedplate base member, and the antifriction joint ring is on central authorities' apron, and the support sets up separately in split type bedplate both sides, and separation - coupling mechanism mainly comprises control rod, lever, voussoir, latch hook, the two extension springs of control rod, latch hook extension spring etc. And the control rod tip is articulated with the one end of lever, hinges in the middle part of voussoir and the lever, and the latch hook hinges and is drawing a bedplate central authorities. The utility model discloses to draw a bedplate designs into split typely to adopt the mode that the bolt welded, nut top -down screws from bottom to top, only need when changing the latch hook with central authorities' apron pull down can, what the fungible was at present in general use lifts the whole loaded down with trivial details mode of pulling the seat and could changing the latch hook off from the tractor, messenger's change spare part convenient and fast has greatly improved maintenance efficiency.

Description

A kind of traction base of semitrailer

Technical field

The utility model belongs to technical field of automobile parts, is specifically related to a kind of traction base of semitrailer.

Background technology

Along with the trail-mobile fast development of automobile, semi-trailer train as a kind of load-carrying capacity by force and efficiently, easily transportation mode be subject to increasing favor.Traction seat is an important total member on semi-trailer train, its effect is the longitudinal force (comprising tractive force and braking force) between transmitting tractive car and superimposed trailer, hold concurrently and will ensure the steering capability of semi-trailer train, therefore, ensure that the reliability of traction seat and towing pin fit connection is very important.The parts that in traction seat, replacement frequency is the highest are anti-attrition dish and latch hook, and to change the method that latch hook generally adopts at present be pulled down completely tractor chassis by traction seat, reversing traction seat, latch hook is changed from below, this maintenance mode work capacity is large, loaded down with trivial details time-consuming, also can bring series installation integrity problem.

Utility model content

The utility model, for solving the problem, discloses a kind of traction base of semitrailer, and concrete technical scheme is as follows:

A kind of traction base of semitrailer, comprise split type seat board, bearing and separation-bindiny mechanism, it is characterized in that: described split type seat board primarily of seat board matrix 1, be connected in the central cover plate 9 on seat board matrix 1 and the wear ring 11 be connected in central cover plate 9 forms; Described seat board matrix 1 lower weld has floor 33 and reinforced rib, described separation-bindiny mechanism forms primarily of joystick 25, lever 27, voussoir 26, latch hook 4, the two extension spring 19 of joystick and latch hook extension spring 3, the end of described joystick 25 and one end of lever 27 hinged, and be connected with seat board matrix 1 by the two extension spring 19 of joystick, hinged in the middle part of described voussoir 26 and lever 27, and slide along the horizontal slide in seat board matrix 1 under the drive of lever 27, described latch hook 4 is hinged on the floor 33 of split type seat board central authorities, and is connected with seat board matrix 1 by latch hook extension spring 3.

Described central cover plate 9 is connected on seat board matrix 1 by seat board bolt 7, and wear ring 11 is connected in central cover plate 9 by wear ring bolt 10.

Described seat board bolt 7 enters the through hole that seat board matrix 1 is processed with central cover plate 9 junction from bottom to top, and the bolt cap of seat board bolt 7 to be welded on seat board matrix 1.

Described wear ring bolt 10 enters the through hole that central cover plate 9 is processed with wear ring 11 junction from bottom to top, and the bolt cap of wear ring bolt 10 is welded in central cover plate 9.

Described latch hook 4 is hinged on the floor 33 of split type seat board central authorities by locking hook bolt 2, first hexagon slotted nut 6 and the first spring cotter 5, described locking hook bolt 2 enters the through hole on floor from bottom to top, and the bolt cap of locking hook bolt 2 is welded on floor 33, described latch hook 4 and the first hexagon slotted nut 6 and locking hook bolt 2 are free-running fit, and latch hook 4 is freely rotated around locking hook bolt 2.

The two extension spring 19 of described joystick is the reverse dual spring of variable pitch.

Described wear ring 11 adopts high-abrasive material to make.

The beneficial effect that the utility model brings is:

1, only central cover plate need be pulled down when changing latch hook, alternative current generally adopt unload from tractor truck the loaded down with trivial details mode that whole traction seat could change latch hook, make replacing parts convenient and swift, drastically increase maintenance efficiency;

2, wear ring is made up of high-abrasive material, and is connected in central cover plate by wear ring bolt, can directly change anti-attrition dish, improve the service life of traction seat when wear ring serious wear;

3, adopt variable pitch reverse dual spring, the impact shock produced that resonates can be avoided, reduce wear and vibration noise, extend the service life such as latch hook, voussoir.

Accompanying drawing explanation

Fig. 1 the utility model exploded view;

Fig. 2 the utility model front view (after extracing central cover plate);

Fig. 3 the utility model back view;

Fig. 4 the utility model seat board matrix and central cover plate connection mode cutaway view;

Fig. 5 the utility model latch hook connection mode cutaway view;

I partial enlarged drawing in Fig. 6 Fig. 5.

In figure:

1-seat board matrix, 2-locking hook bolt, the extension spring of 3-latch hook, 4-latch hook, 5-first spring cotter, 6-first hexagon slotted nut, 7-seat board bolt, 8-seat board nut, 9-central cover plate, 10-wear ring bolt, 11-wear ring, 12-wear ring nut, 13-ships and resell on another market bolt, 14-spring washer, 15-ships and resell on another market boss, 16-rubber damping cover, 17-bearing, 18-ships and resell on another market, the two extension spring of 19-joystick, 20-elastic parts, 21-tie bolt, 22-connecting strap, 23-second spring cotter, 24-second hexagon slotted nut, 25-joystick, 26-voussoir, 27-lever, 28-pad, 29-tapered bar pin, 30-adjusts screw rod, 31-adjusting nut, 32-connecting panel, 33-floor.

Detailed description of the invention

Below in conjunction with Figure of description, the utility model is further described:

A novel semi-trailer traction seat for structure optimization, comprises split type seat board, bearing and separation-bindiny mechanism.

As shown in Figure 1 and Figure 4, wherein split type seat board is primarily of seat board matrix 1, central cover plate 9 and wear ring 11 form, central cover plate 9 is connected on seat board matrix 1 by seat board bolt 7 and seat board nut 8, described seat board bolt 7 enters the through hole that seat board matrix 1 is processed with central cover plate 9 junction from bottom to top, and the bolt cap of seat board bolt 7 is welded on seat board matrix 1, as in Fig. 4 shown in A, wear ring 11 is connected in central cover plate 9 by wear ring bolt 10 and wear ring nut 12, described wear ring bolt 10 enters the through hole that central cover plate 9 is processed with wear ring 11 junction from bottom to top, and the bolt cap of wear ring bolt 10 is welded in central cover plate 9, as in Fig. 4 shown in D, wear ring 11 is made up of high-abrasive material, seat board matrix 1 bottom is welded with floor 33 and reinforced rib, as in Fig. 5 shown in C,

As shown in Figure 1, bearing 17 points is located at Split seat plate both sides, and by shipping and reselling on another market 18, boss 15 of shipping and reselling on another market, bolt 13 of shipping and reselling on another market, spring washer 14 and rubber damping cover 16 is connected with the bearing bore on seat board matrix 1, plays the effect of support seat board;

If Fig. 1 separation-bindiny mechanism is primarily of joystick 25, lever 27, voussoir 26, latch hook 4, the two extension spring 19 of joystick and latch hook extension spring 3 form, one end of joystick 25 end and lever 27 is by connecting strap 22, tie bolt 21, second hexagon slotted nut 24 is connected with the second spring cotter 23, in the middle part of voussoir 26 and lever 27 by tapered bar pin 29 and pad 28 hinged, latch hook 4 is by locking hook bolt 2, first hexagon slotted nut 6 and the first spring cotter 5 are hinged on the floor 33 of traction seat seat board central authorities, described locking hook bolt 2 enters the through hole on floor 33 from bottom to top, and the bolt cap of locking hook bolt 2 is welded on floor 33, as in Fig. 5 shown in B.First hexagon slotted nut 6 and latch hook 4 are had an appointment the gap of 3mm, and locking hook bolt 2 coordinates with the via clearance on latch hook 4, to ensure latch hook 4 freely rotating around locking hook bolt 2.Traction seat of the present utility model also comprises adjustment screw rod 30, adjusting nut 31 and connecting panel 32 and safety block (not shown in FIG.) assembly.

As shown in Figures 2 and 3, when connecing extension, the towing pin connected firmly on trailer enters the open slot of traction seat central authorities, and promote pulling force that latch hook 4 overcomes latch hook extension spring 3 around locking hook bolt 2 along left-hand revolution in Fig. 2, after towing pin enters open slot completely, latch hook 4 rotates to shown position, under the effect of the two extension spring 19 of joystick, joystick 25 inwardly moves, lever 27 swings around bottom, and drive voussoir 26 to move from outside to inside along horizontal slide, when voussoir 26 moves to shown position by latch hook 4 locking, finally pin joystick 25 with not showing in safety block figure, connect and hang into.

When de-extension, open safety block, pull out joystick 25, the pulling force that joystick 25 overcomes two extension spring 19 outwards moves, joystick 25 drives lever 27 to swing, lever 27 drives voussoir 26 outwards to move along horizontal slide to see Fig. 3, until latch hook 4 is got out of the way completely, now by tractor truck slowly driven forward, owing to losing the effect of voussoir 26 barrier force, latch hook 4 cannot drive towing pin to travel forward, so trailer stops, and tractor truck moves forward alone, latch hook 4 is caused to rotate clockwise along in Fig. 2 around locking hook bolt 2, until depart from completely with towing pin, take off and hang into.

The process changing latch hook 4 is as follows:

During dismounting, first the seat board nut 8 of four above central cover plate 9 is unloaded, just can unload central cover plate 9, as shown in Figure 2, unloading central cover plate 9 will come out completely by latch hook 4, takes latch hook extension spring 3, then the first spring cotter 5 and the first hexagon slotted nut 6, just replaceable latch hook 4 is pulled down;

During assembling, be enclosed within by latch hook 4 on locking hook bolt 2, the through hole on latch hook 4 and locking hook bolt 2 are free-running fit, latch hook extension spring 3 in mounting, to screw on the first hexagon slotted nut 6, when tightening, hexagonal fluting seat board nut 8 lower surface distance latch hook upper surface this gap, 3mm gap of having an appointment is controlled by locking hook bolt length of thread, as shown in Figure 5 and Figure 6, with the first spring cotter 5 locking, cover central cover plate 9, finally tighten four seat board nuts 8, change complete.

Claims

1. a traction base of semitrailer, comprise split type seat board, bearing and separation-bindiny mechanism, it is characterized in that: described split type seat board primarily of seat board matrix (1), be connected in the central cover plate (9) on seat board matrix (1) and be connected in central cover plate (9) wear ring (11) composition, described seat board matrix (1) lower weld has floor (33) and reinforced rib, described separation-bindiny mechanism is primarily of joystick (25), lever (27), voussoir (26), latch hook (4), the two extension spring (19) of joystick and latch hook extension spring (3) composition, the end of described joystick (25) and one end of lever (27) hinged, and be connected with seat board matrix (1) by the two extension spring (19) of joystick, described voussoir (26) is hinged with lever (27) middle part, and slide along the horizontal slide in seat board matrix (1) under the drive of lever (27), described latch hook (4) is hinged on the floor (33) of split type seat board central authorities, and be connected with seat board matrix (1) by latch hook extension spring (3).

2. a kind of traction base of semitrailer according to claim 1, it is characterized in that, described central cover plate (9) is connected on seat board matrix (1) by seat board bolt (7), and wear ring (11) is connected in central cover plate (9) by wear ring bolt (10).

3. a kind of traction base of semitrailer according to claim 2, it is characterized in that, described seat board bolt (7) enters the through hole that seat board matrix (1) is processed with central cover plate (9) junction from bottom to top, and the bolt cap of seat board bolt (7) is welded on seat board matrix (1).

4. a kind of traction base of semitrailer according to claim 2, it is characterized in that, described wear ring bolt (10) enters the through hole that central cover plate (9) is processed with wear ring (11) junction from bottom to top, and the bolt cap of wear ring bolt (10) is welded in central cover plate (9).

5. a kind of traction base of semitrailer according to claim 1, it is characterized in that, described latch hook (4) is by locking hook bolt (2), first hexagon slotted nut (6) and the first spring cotter (5) are hinged on the floor (33) of split type seat board central authorities, described locking hook bolt (2) enters the through hole on floor from bottom to top, and the bolt cap of locking hook bolt (2) is welded on floor (33), described latch hook (4) is free-running fit with the first hexagon slotted nut (6) and locking hook bolt (2), latch hook (4) is freely rotated around locking hook bolt (2).

6. a kind of traction base of semitrailer according to any one of claim 1-5, is characterized in that, the two extension spring (19) of described joystick is the reverse dual spring of variable pitch.

7. a kind of traction base of semitrailer according to any one of claim 1-5, is characterized in that, described wear ring (11) adopts high-abrasive material to make.