CN201745557U

CN201745557U - Folding mechanism for leveling supporting legs

Info

Publication number: CN201745557U
Application number: CN2010202539790U
Authority: CN
Inventors: 黄蓉; 高翼; 张高峰
Original assignee: Guizhou Aerospace Tianma Electrical Technology Co Ltd
Current assignee: Guizhou Aerospace Tianma Electrical Technology Co Ltd
Priority date: 2010-07-12
Filing date: 2010-07-12
Publication date: 2011-02-16
Anticipated expiration: 2020-07-12

Abstract

The utility model discloses a folding mechanism for leveling supporting legs, which mainly comprises a base, a rotating support, a rotation controller, a drive pin, a positioning seat, a main body, a positioning shaft, a positioning pin, a spring, a screw plug, a disc spring, an induction rod, a jacking rod, and a ball head, wherein the rotation controller is mounted at the lower end of the main body to form a relatively fixed entire rotation control component, for controlling the rotation of the rotating support; the leveling supporting legs are inserted into through-holes in the rotation control component; the positioning seat is mounted at the lower ends of the leveling supporting legs; the positioning pin, the spring and the screw plug are mounted at the lower end of the positioning seat sequentially; the disc spring, the induction rod and the jacking rod are mounted at the upper end of the positioning seat sequentially; the positioning seat and the rotating support are connected through the positioning shaft; the drive pin is mounted on the rotating support; and the lower end of the rotating support is connected with the base in a sliding manner through the ball head. The folding mechanism for leveling supporting legs can automatically rotate and be locked, so as to meet the demands on departure angle, ground clearance and leveling stroke.

Description

A kind of leveling supporting leg fold mechanism

Technical field

The utility model relates to leveling supporting leg technical field, specifically a kind of leveling supporting leg fold mechanism, can be used for to satisfy simultaneously the leveling supporting leg of liftoff requirement and departure angle requirement, also can be used for the technical field that other need convert straight-line motion to rotational motion.

Background technology

The application of construction machinery and equipment more and more widely, often all be equipped with the leveling supporting leg, concrete pump truck for example, engineering trucks such as automobile crane all are equipped with the leveling supporting leg, general leveling supporting leg is four, each side two, in order to guarantee the stability of engineering truck after leveling and the needs of gradient leveling, the bearing force of vehicle tyre fully must be discharged, so that the leveling supporting leg has enough strokes, but on many cars, be subjected to partly radius of turn of dress, the influence of liftoff requirement and departure angle is merely carried out whole leveling stroke by the leveling supporting leg and is difficult to realize, adopts to increase cushion blocks or reduce departure angle at present to guarantee that the leveling supporting leg has enough strokes more, if adopt the mode that increases cushion block, need M/C, then can prolong the setup time of engineering truck leveling greatly, can not realize fast leveling; If adopt the mode that reduces departure angle, then can reduce the crossing ability of car.

Summary of the invention

For solving the problems of the technologies described above, the purpose of this utility model is to provide a kind of leveling supporting leg fold mechanism, can rotate automatically and lock, to guarantee the needs of departure angle, liftoff requirement and leveling stroke, can be used for to satisfy simultaneously the leveling supporting leg of liftoff requirement and departure angle requirement, also can be used for the technical field that other need convert straight-line motion to rotational motion.

The utility model is achieved by following technical solution.

Leveling supporting leg fold mechanism of the present utility model mainly comprises base, rotating stand, pivoting controller, drive pin, positioning seat, body, fix shaft, locating dowel pin, spring, plug screw, the dish spring, induction rod, push rod and bulb, pivoting controller is installed in the lower end of body, form a relatively-stationary rotation control assembly integral body, be used to control the rotation of rotating stand, the leveling supporting leg inserts in the through hole that rotates control assembly, its lower end is equipped with positioning seat, lower end at positioning seat is equipped with locating dowel pin successively, spring and plug screw, upper end at positioning seat is equipped with the dish spring successively, induction rod and push rod, positioning seat is connected by fix shaft with rotating stand, drive pin is housed on the rotating stand, and the lower end of rotating stand is by bulb and base sliding block joint.

Compared with prior art, the beneficial effect that the utility model reaches is: 1. the utility model can guarantee that the leveling supporting leg can upwards lift automatically removing the time receiving, has increased the departure angle of engineering truck, has improved the crossing ability of engineering truck greatly; 2. the utility model can straighten to the leveling state automatically in the leveling process, thereby has increased the leveling stroke, reduced the leveling time; 3. the utility model is simple in structure, can change according to real needs, and installing does not have the particular location requirement, and easy to maintenance, easy operating can be widely used on the leveling supporting leg of missile truck highly versatile.

Description of drawings

Fig. 1 is a structural front view of the present utility model;

Fig. 2 is the lateral plan of Fig. 1;

Fig. 3 is that the A-A of Fig. 2 is to cutaway view;

Fig. 4 is the three-dimensional structure diagram of pivoting controller in the utility model;

Fig. 5 is the three-dimensional structure diagram of rotating stand in the utility model;

Fig. 6 is the three-dimensional structure diagram of positioning seat in the utility model;

Fig. 7 is the three-dimensional structure diagram of fix shaft in the utility model.

Among the figure: 1-base, 2-rotating stand, 3-pivoting controller, 4-drive pin, 5-positioning seat, 6-body, 7-fix shaft, 8-locating dowel pin, 9-spring, 10-plug screw, 11-dish spring, 12-induction rod, 13-push rod, 14-bulb, 15-leveling supporting leg.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples, but not as the foundation of the utility model being done any restriction.

Leveling supporting leg fold mechanism of the present utility model mainly comprises base 1, rotating stand 2, pivoting controller 3, drive pin 4, positioning seat 5, body 6, fix shaft 7, locating dowel pin 8, spring 9, plug screw 10, dish spring 11, induction rod 12, push rod 13 and bulb 14, pivoting controller 3 is installed in the lower end of body 6, form a relatively-stationary rotation control assembly integral body, be used to control the rotation of rotating stand 2, the leveling supporting leg inserts in the through hole that rotates control assembly, its lower end is equipped with positioning seat 5, positioning seat 5 is along with the relative body 6 of leveling supporting leg can carry out up-and-down movement, play the effect in joint, lower end at positioning seat 5 is equipped with locating dowel pin 8 successively, spring 9 and plug screw 10, upper end at positioning seat 5 is equipped with dish spring 11 successively, induction rod 12 and push rod 13, positioning seat 5 is connected by fix shaft 7 with rotating stand 2, drive pin 8 is housed on the rotating stand 2, bulb 14 and base 1 sliding block joint are passed through in the lower end of rotating stand 2, play to add the long leg stroke, the stronghold surface state carries out the effect of accommodation and support.

The working process of leveling supporting leg fold mechanism of the present utility model is: when the leveling supporting leg moves downward, drive pin 8 moves in the control slit of pivoting controller 3, driving rotating stand 2 rotates counterclockwise, when rotating stand 2 and body 6 in line after, locating dowel pin 8 is under the effect of spring 9, head in the pit of fix shaft 7, prevent that rotating stand 2 generations from freely swinging, rotating stand 2 continues to move downward with the leveling supporting leg, after base 1 lands, rotating stand 2 temporary transient stop motions, enter the waist shaped hole of positioning seat 5 until fix shaft 7, because fix shaft 7 has anti-rotating function in waist shaped hole, in a single day fix shaft 7 enters waist shaped hole, rotating stand 2 lands the back under stressing conditions, to limit it rotates, simultaneously, positioning seat 5 also can be connected with empty leg detecting device, reach the requirement that empty leg detects by dish spring 11, behind the stressed application force greater than dish spring 11 of supporting leg, fix shaft 7 promotes push rod 13 and upwards produces displacement, after driving induction rod 12 produces corresponding displacement in the time of push rod 13 change in location, connect empty leg signal circuit, and this signal is transmitted this corresponding controller; Supporting leg is removed and received is the inverse process that stretches out, enter the guide groove of pivoting controller 3 when the guide finger on the rotating stand 2 after, under the guiding of guide groove, make the rotating stand 2 of supporting leg upwards folding, remove receipts thereby finish supporting leg.

The content that is not described in detail in this specification sheets belongs to this area professional and technical personnel's known prior art.

Claims

1. leveling supporting leg fold mechanism, it is characterized in that: mainly comprise base (1), rotating stand (2), pivoting controller, drive pin (4), positioning seat (5), body (6), fix shaft (7), locating dowel pin (8), spring (9), plug screw (10), dish spring (11), induction rod (12), push rod (13) and bulb (14), pivoting controller (3) is installed in the lower end of body (6), form a relatively-stationary rotation control assembly integral body, be used to control the rotation of rotating stand (2), the leveling supporting leg inserts in the through hole that rotates control assembly, its lower end is equipped with positioning seat (5), in the lower end of positioning seat (5) locating dowel pin (8) is housed successively, spring (9) and plug screw (10), in the upper end of positioning seat (5) dish spring (11) is housed successively, induction rod (12) and push rod (13), positioning seat (5) is connected by fix shaft (7) with rotating stand (2), drive pin (8) is housed on the rotating stand (2), and the lower end of rotating stand (2) is by bulb (14) and base (1) sliding block joint.