A kind of self-floating rotation water injector
Technical field
The utility model belongs to the water injector technical field, is specifically related to a kind of self-floating rotation water injector.
Background technology
A kind of cleaning method of cylindrical shell is to adopt the rotary nozzle water spray that thereby cylinder inboard wall is washed away the purpose that reaches cleaning.There is bigger friction in the general hydraulic pressure spinning mode of utilizing that adopts of existing rotary nozzle between mandrel and the rotary sleeve when rotating at a high speed, reduced and sprayed the pressure and the speed of current, and be easy to generate wearing and tearing, and mechanism is complicated, and assembly is more.
Summary of the invention
It is little that the purpose of the utility model provides a kind of volume, simple in structure, do not have the self-floating rotation water injector that cleans the dead angle.
The utility model is achieved in that a kind of self-floating rotation water injector, and it comprises the rotary sleeve of mandrel and mandrel outside socket, have on the mandrel spacing structure is carried out in the rotary sleeve both sides,
Described mandrel is the airtight hollow tubular structure of a side head, and hollow tube radially has more than 2, the mandrel apopore that on circumference, is uniformly distributed with, and mandrel connects into water lines at opening one end;
Said rotary sleeve is a disc structure, and disc shaft is used to pass mandrel to having through hole, and the disk middle part also has axial cavity, is used for current and passes through, and when the position of axial cavity made water outlet, the water of mandrel apopore can directly get into cavity;
Cavities radially has more than 2 in the disk, the rotary sleeve apopore of the off-centre that is uniformly distributed with on the circumference; Rotary sleeve apopore location arrangements is: during water outlet, mandrel apopore rotary sleeve apopore is derived the current in the said columniform cavity, and it is equidirectional that the reaction force that all apopores bring makes the rotary sleeve rotating moment;
Installing between back rotary sleeve and the mandrel has radial clearance, between rotary sleeve upper end and the mandrel upper limit structure end play is arranged.
The utility model has the advantages that: be beneficial to the moisture film that High-Pressure Water flows through mandrel and the generation of rotary sleeve gap; Rotary sleeve is swum on the catch, all directly do not contact with catch, the friction when having avoided rotating at a high speed with mandrel; Improve the speed of spraying current, and reduce wearing and tearing; And simple in structure, compactness in contrast to the device with a plurality of modular constructions of the prior art, is easy to processing more, uses, and improves service life.Adopt the water spray reaction to promote the rotary sleeve rotation, the outlet hydraulic losses is little, and plays the beneficial effect of water saving; Water jet is the some water outlet simultaneously, and discharge pressure is big, cleaning performance good; Rotary sleeve is 360 ° of rotary water-outs, does not have the dead angle of cleaning.
Description of drawings
A kind of self-floating rotation of Fig. 1 water injector front view;
A-A generalized section in a kind of self-floating rotation of Fig. 2 water spray installation drawing 1.
B-B generalized section in a kind of self-floating rotation of Fig. 3 water spray installation drawing 2.
Among the figure: 1 mandrel, 2 rotary sleeves, 3 catch, 4 screws.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:
As shown in Figure 1, a kind of self-floating rotation water injector comprises mandrel 1, rotary sleeve 2, catch 3 and screw 4.Mandrel 1 outside socket rotary sleeve 2, catch 3 is installed in rotary sleeve 2 bottoms, and catch 3 is connected with screw 4 with mandrel 2 bottoms.
Mandrel 1 is the airtight hollow tubular structure of a side head, external diameter of pipe φ 24.48mm, internal diameter φ 18mm; The airtight bottom portion of mandrel is the M5 screwed hole; Be used for attachment screw, bottom position on the upper side radially has the apopore of 8 diameter phi 6mm that are uniformly distributed with, and mandrel open top end position on the lower side is the shaft shoulder of external diameter φ 32mm; Open top one end is the bump joint of external diameter φ 60mm, is used to connect into water lines.
Rotary sleeve 2 is disc structures, disk external diameter φ 60mm, and disk is two ends perforate φ 25mm up and down; Be used to pass mandrel, the disk middle part has φ 35mm cavity, is used for current and passes through; The disk middle part has the tangential apopore of 8 φ 6mm; In the present embodiment, use the apopore of tangential, all the other can bring the apopore of the off-centre of turning moment also can.
Catch 3 is round chip architectures of center drilling, external diameter φ 35mm, center drilling φ 5mm, thick 3mm.
Screw specification M5 * 8.
During use rotary sleeve 2 is socketed on the mandrel 1, catch 3 is installed in mandrel 1 bottom, and catch 3 usefulness screws 4 are fixed on the mandrel 1.Installing between back rotary sleeve 2 and the mandrel 1 has the 0.52mm radial clearance, and rotary sleeve 2 upper ends and mandrel 1 shaft shoulder have 2mm end play, in the mandrel 1 behind the feeding 1MPa water under high pressure; Current are through the middle cavities of mandrel 1 lower end radial hole inflow rotary sleeve 2, and most of current play the cleaning souring through the tangential perforate ejection in rotary sleeve 2 outsides; Because the reaction force of water promotes the rotary sleeve rotation; As shown in the figure, the reaction force that all apopores bring makes rotary sleeve 2 rotating moment equidirectional, and the fraction current flow out through between mandrel 1 and the rotary sleeve 2 and gap between rotary sleeve 2 and the catch 3; Form the high pressure moisture film, rotary sleeve 2 is floated.