SU594323A1 - Suction dredger pipper - Google Patents

Description

The invention can be used when conducting earthworks by means of hydromechanization. A ground-clearing depleting device is known, containing a suction pipe, a frame with a drive shaft, as well as a support wheel, a hub and knives from the shafts combined. in a rigid structure cutters jl. The device provides loosening, forced and directed feeding of the cut soil in the direction of the suction tip of the dredger $ 1 yes. However, in this device, it is possible to use the opencast when developing bonded soils. Closest to the proposed device, the loosening device, consisting of knives, dumps, hub and support ring, is also combined into a rigid cutter design, in which, due to the plow outline of the dumps, in most cases, the possibility of salting 2 is eliminated. However, the plow milling cutter can. its parameters during operation: as a result of abrasive wear of the blades of the cutter formed from knives to heaps, the length of the cutter decreases, the angles of cutting of the soil and the incision into the bottom increase, which reduces the thickness of the cut soil chips and increases the energy intensity of the loosening process. In addition, in the case of the cutter between the blades, the cutter with vegetable soils, stones and other unanticipated inclusions in the developed soil cannot be cleaned without stopping the dredge and lifting the cutter to the surface. The purpose of the invention is to increase the efficiency of subsea development by reducing energy consumption and increasing the productivity of preliminary soil loosening. For this, in the proposed device, the blades-blades are hingedly connected to the support wheel, and the hub is made with the possibility of its curvilinear-rocker articulation with the blades-dumps. Such an embodiment of the disintegrating device allows its parameters to be varied in relation to the characteristics of the gap. battaema soil. On, 1 shows the described device; ca fig. 2 - AA section on phpg. 1 (Used MftcTB connect dumps to the hub); . 3 section bb in fig 1 (in the place of co-ln g. Auger with a supporting wheel). The structure consists of dump-blades 1 (oTia.Jb R of the tail section are shifted into n): step 2, op Rotor wheels 3 ,. support iodshippika 4, the head section of the drive shaft .5, pam 6, the suction pipe 7, G schrotsiln11drov 8, the coupling 9, the leash 10, for direct. protrusions 11 dumps, luapoBbtx knife supports 12, splined coupling 13, - the drive shaft main section 14 (side plate. Mauchts 2 are made with spiral grooves for placement of dumps 11 protrusions. Support, neck of wheel 3 is inserted into support bearing 4, wheel 3 can rotate freely in the bearing 4. A hole is made in the wheel 3 for the passage of the head section of the drive shaft. The heads of the shaft section 5 are connected with a hub 2. by means of a cone joint with a keyed locking bolt and nut (not shown in the drawing). wheels 3, posted ball nests. for ball bearings 12 of knives. (Locking devices of ball joints are not shown in the drawings.) Coupling 9 is designed to control the angle of inclination of blades-dumps 1, it is fixed on the shaft section 5, and Schleinj coupling 13 - to connect the head 5 and the main 14 sections of the drive shaft, H1 axle cylinders 8 and the leash, iO are the driving mechanism of the clutch 9. The device works in the following manner. Through the slip clutch 13. the rotation of the shaft section 14 is transmitted to the head section 5 of the shaft and further from it the hub 2 and the blades of the shaft 1 , Depending on the har ground line providers to establish optimum parameters downhole disintegrant: its length, the diameter of cutting angle and angle of cutting into the ground. This is erased by the fact that the head section 5 of the shaft can make not only vrash, but also axial movement. The magnitude of the axial movement of the shaft is determined by the stroke of the driver 10 and is carried out by extending the rods of the hydraulic cylinders 8. Together with the shaft section 5, the hub 2 is displaced in the axial direction. The guide protrusions 11 of the dumps are mixed-. on the special. grooves on the stop. (Gigonal grooves allow the protrusions 11 to be swept in two directions: along the axis of the stems and in the transverse section in the lateral section of the openings. At the same time, angles to the bug will vary from one side to the other. к: axes 1zazr.kh..g n to the plane of the cross section, i.e., HhhGN5 opeaajiHK angle of the front ends of the dumps into the ground and the cutting angle of the O7 shafts. When you turn the blade, the knife rotates 12 with the supporting wheel. After the optimal pairs of -1 meters are established, the Yu lead is fixed to the disintegrant. When changing the position of the dump blades relative to the axes of the disintegrating agent, the outlines of the body - vral FreiA, its length and average diameter, the gauges of the inter-blade spaces also change. The proposed device consists in increasing the productivity of the dredge by maintaining the optimum values of the parameters of the milling cutter during its wear and changing the soil conditions. vii in the face. Faure, mlu l and 3 o & The suction dredger of the suction projectile containing a suction pipe, a frame driven by a shaft, a support wheel, a hub and knives-dumps, which is different from the fact that productivity soil loosening, blades, dumps pivotally connected to the support wheel, and stuniya made with the possibility of its curvodiaine-kulisnogo sotdenoii with knives dumps. Sources of information taken into account in the examination: 1.Uporov N. G., Ekarev S. B, Suction dredgers and pumping installations, M., Higher School. 1974, p. 94-99 fig. 6O, 61. 2. Shkundin B. M, Suction dredgers M., Energie, 1973, tons s. 151-153, fig. 9 21.,.,

Fig.1

LA

5-5

U

eleven

FIG. 2

fil.Z