Quick-detachable connection of the working body of the truck

 

The invention relates to earth-moving machines, namely the quick-release connection of the working body with the nodes of the basic machine. Quick-detachable connection of the working body of the truck includes fixed on the rear side of the working body of lugs mounted on the loader boom support plate located therein perpendicular to the longitudinal plane of the boom two pairs of upper locking devices and lower locking devices, the latter of which are mounted on the cross slide cylinder double acting with two rods, each of which output end is connected with the locking finger for engagement with the lugs of the caliper and hinged to the arm of the working body. The outlet end of each rod with locking fingers is made by means of a ball joint. The body of the cylinder in the middle part has a trunnion mounted in the slots of the supports placed on the cross slide. Simplifies the design and improves reliability. 8 Il.

The invention relates to earth-moving machines, namely the quick-release connection of the working body with the nodes of the basic machine.

Known quick suedtiroler on the loader boom support plate located therein perpendicular to the longitudinal plane of the boom two pairs of upper locking devices and lower locking devices with hydraulic cylinder double acting with two rods, each output end connected with the locking finger for engagement with the lugs of the caliper and hinged boom working body [1].

This technical solution according to its technical essence and the achieved result is the closest to the proposal of the applicant and, therefore, adopted for the prototype.

The disadvantages of the prototype is the following.

Application for fiksiruemykh finger guides glasses that require high purity and precision, provided with flanges, as well as the use of springs and cushioning inserts for mounting hydrocylinders greatly complicates and increases the cost of construction.

In addition, the use of compounds of the locking finger with the rod, by means of a pin sphere and bushings, providing increased gaps, causes increased wear of the connection due to frequent fluctuations of the working body during operation of the truck, resulting in the lowering of reliability.

Therefore the problem to be solved in the proposal of the applicant, is to simplify the design while enhancing reliability.

The solution of the stated problem is achieved by the fact that in a quick-detachable connection of the working body of the truck, including fixed on the back speculare longitudinal plane of the boom two pairs of upper locking devices and lower locking devices, the latter of which are mounted on the cross slide cylinder double acting with two rods, each of which output end is connected with the locking finger for engagement with the lugs of the caliper and hinged to the arm of the working body, the outlet end of each rod with locking fingers is made by means of a ball joint, and the body of the cylinder in the middle part has a trunnion mounted in the slots of the supports placed on the cross slide.

In Fig.1 shows the working body of the truck in the form of a bucket in the initial stage of connection with the caliper of Fig.2 - the same, in the final stage of the connection to the caliper of Fig.3 - view page a in Fig.2; Fig.4 is a section along B-B in Fig.3; Fig.5 - section In Fig.3; Fig.6 - section G-G in Fig.2 when inverted the stem of the cylinder; Fig.7 - the same, when extended rod of the hydraulic cylinder; Fig.8 - section d-D in Fig.6.

Quick-detachable connection of the working bodies of the truck consists of mounted on the boom 1 caliper 2, which has two pairs of upper 3 and lower 4 locking devices. The lower locking device 4 consists of a cylinder 5 double action with two identical rods 6. With the output end 7 of each rod 6 spherical grooves of the supports 11, placed on the cross member 12 of the caliper 2.

The upper locking device consists of fingers 13, mounted in the cheeks 14 of the caliper 2. In the shut-off devices are also mounted on the rear side of the working body of the upper eye hook type 15 and the lower cylindrical lugs 16 that are located coaxially at work body 17 and the support plate 2.

Operates quick-detachable connection of the working body of the truck is as follows.

Forklift arrow 1 caliper 2 is suitable to the operating body 17 and the boom 1 enters the upper fingers of the caliper 2 in hook lugs 15 of the working body 17 (Fig.1). Then, rotate the caliper relative to the lugs 15, combine overste 16 in the caliper and the working body (Fig.2) and, pushing the rod 6 of the hydraulic cylinder 5, enter the locking pins 9 in the lugs 16. Thus, it is an articulation clamp connections working body of the arrow.

Compared with the prototype of the connection rod of the hydraulic cylinder with locking finger and installation of the hydraulic cylinder is made simpler in comparison with the prototype (no springs, glasses, flanges, cushioning elements) and more reliable (no connections with larger gaps).

The combination of the ball is the construction and increases the reliability of the quick connector.

Sources of information

[1] The United Kingdom Patent No. 2308839, E 02 F 3/36, 1997.

Claims

Quick-detachable connection of the working body of the truck, including fixed on the rear side of the working body of lugs mounted on the loader boom support plate located therein perpendicular to the longitudinal plane of the boom two pairs of upper locking devices and lower locking devices, the latter of which are mounted on the cross slide cylinder double acting with two rods, each of which output end is connected with the locking finger for engagement with the lugs of the caliper and hinged to the arm of the working body, characterized in that the outlet end of each rod with locking fingers is made by means of a ball joint, and the body of the cylinder in the middle part has a trunnion, installed in the slots of the supports placed on the crossbar of the caliper.

 

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