阅读说明：本技术 高压喷水推进器 (High-pressure water-jet propeller ) 是由 郝继先 于 2021-01-16 设计创作，主要内容包括：高压喷水推进器是由多台高压喷射泵组成的,即泵喷射推进器,取代了螺旋桨,不但降低了噪音,而且大大提高了航行速度。大组合泵喷射推进器是由动力源(液压马达或电机)驱动两侧三轴3并列6对缸高压喷水泵为一大组合泵喷射推进器(见图8)。前导向设一台大组合旋转式的高压喷水推进器(参考图10航母横向设置两台大组合),尾部设置多台大组合高压喷水推进器,具有足够的推进力,航行速度47.8节,转速提高到840r/min航速可达51.4节。旋转方向操纵把可迅速转弯或掉头,如果发生突发情况,立刻停止全部高压喷水推进器,迅速旋转方向操纵把180°,即刻开启前导向高压喷水推进器,此时产生紧急刹车或迅速倒车行驶,避免撞船事故发生,创造了世界一流的、机动灵活的、高速行驶的潜艇、军舰与航母。(The high-pressure water-jet propeller consists of a plurality of high-pressure jet pumps, namely, the pump jet propeller replaces a propeller, so that not only is the noise reduced, but also the sailing speed is greatly improved. The large combined pump jet propeller is a large combined pump jet propeller (see figure 8) which is driven by a power source (a hydraulic motor or an electric motor) and has 6 parallel cylinders of 6 high-pressure water-jet pumps on two sides. The front guide is provided with a large-combination rotary high-pressure water jet propeller (refer to fig. 10, the aircraft carrier is transversely provided with two large combinations), the tail is provided with a plurality of large-combination high-pressure water jet propellers, the large-combination high-pressure water jet propeller has enough propulsive force, the sailing speed is 47.8 knots, and the rotating speed is improved to 840r/min and can reach 51.4 knots. The rotating direction control handle can quickly turn or turn around, if an emergency occurs, all the high-pressure water-jet propellers are immediately stopped, the rotating direction control handle is quickly rotated for 180 degrees, the front-guide high-pressure water-jet propeller is immediately started, emergency braking or quick reverse driving is generated at the moment, the occurrence of a ship collision accident is avoided, and the world-first-class, flexible and high-speed-driving submarines, warships and aircraft carriers are created.)

1. The high-pressure water-jet propeller (also called pump jet propeller) is characterized by that it uses roller transmission mechanism to drive the piston to make reciprocating movement, and the main shaft is rotated for one turn, and the piston to be fed and discharged is made to make reciprocating movement three times, and the volume of piston to be fed is 2 times of that of piston to be discharged, so that it can continuously discharge high-pressure water flow.

2. The structure of the utility model is as follows: the high-pressure water-jet propeller comprises a main shaft, a roller frame, a bearing roller, a water delivery channel also serving as a raceway, a water inlet piston, a water discharge piston, a water inlet valve, a check valve, a split pump body, a bearing disc seat, a bearing (111000 type), a fastening bushing, a bearing cover and the like.

3. The oblique opposite angles of the contact surfaces at the two sides of the pump body are respectively provided with a positioning pin for positioning, and the pump body is fastened by screws.

One, the technical field

The invention relates to a high-pressure water-jet propeller, which belongs to the field of piston type high-pressure pumps, and is characterized in that a roller transmission mechanism drives a water inlet piston and a water outlet piston to reciprocate, and the volume of the water inlet piston is 2 times of that of the water outlet piston. Ensuring that high-pressure water flow is continuously and continuously discharged.

Second, background Art

At present, the domestic and overseas high-pressure water-spraying pump is driven by a roller transmission mechanism, a main shaft rotates for a circle to advance and discharge a piston to and fro three times, and a high-pressure water-spraying propeller consisting of 36 pairs of cylinders in a large combination (the two sides of the high-pressure water-spraying pump are respectively driven by a hydraulic motor or a motor and are provided with three shafts and three parallel 6 pairs of cylinders, and the high-pressure water-spraying pump is shown in a large combination figure 8), namely the pump-spraying propeller, has high pressure and large discharge capacity.

Third, the invention

The technology of the invention is that a high-pressure water-jet propeller is composed of a main shaft, a roller carrier, a bearing roller, a water delivery channel which also serves as a raceway, a water inlet piston, a water discharge piston, a water inlet valve, a check valve, a transition curve jet orifice arranged on the water discharge side of a split pump body and connected with a jet straight pipe (not shown), a bearing disc seat, a bearing (111000 type), a fastening bush, a bearing cover and the like. The roller transmission mechanism drives the water inlet piston and the water outlet piston to reciprocate, the volume of the water inlet piston is 2 times of that of the water outlet piston, and the continuous and continuous discharge of high-pressure water flow is guaranteed. A main shaft, a roller carrier and a bearing roller in the roller transmission mechanism form an independent body (A); the water delivery channel also serves as a raceway to connect the water inlet piston and the water discharge piston to form another independent body (B). The bearing roller of the independent body (A) is assembled on the raceway contact surface of the independent body (B) in a micro-clearance fit manner. The main shaft is embedded with a semicircular key and fixedly matched with the roller carrier, and a plurality of Cooper split bearing supports are arranged for increasing the bending strength of the main shaft. The main shaft is fixed on the pump body at one side of the split pump body by a bearing bush cover, the split pump body fixes the piston inlet and the piston outlet on a reciprocating track, and two opposite angles at two sides of the contact surface of the split pump body are respectively positioned by a positioning pin and fastened by screws. Firstly, a bearing (111000 type) is arranged in a bearing disc seat, bearing positioning screws are fastened by inner and outer bearing covers, a main shaft penetrates through round holes processed on two sides of a pump body, a whole set of bearing disc seat is sleeved on the main shaft on two sides, six paired screws are fixed on the wall of a pump, the outer bearing cover is opened, the center line of a bearing roller is centered on the central axis of a pump cylinder, bushing nuts are tightly locked on two sides, and the outer bearing cover is well arranged (a flat-head bolt is arranged in a clamping groove of the inner bearing cover to prevent the bolt from rotating, a split pin is arranged at the tail end of the clamping groove to prevent the bolt from being separated, see fig. 5).

Description of the drawings:

FIG. 1, schematic diagram of high pressure water jet pump T1

FIG. 2 is a schematic view of a high pressure water jet pump T2

FIG. 3 is a schematic view of the water inlet valve (the water inlet valve and the check valve are identical in shape and structure, but different in size.)

FIG. 4 is a schematic view of independent bodies (A) and (B)

FIG. 5 is a schematic view of a bearing disk seat

FIG. 6 is a roller track implementation reference diagram

FIG. 7 is a roller track implementation reference diagram

Note: and the graphs are drawn by a master form optimization method in the figures 6 and 7, meet ideal requirements through animation verification, and run smoothly through a model test.

FIG. 8, schematic diagram of large combined high-pressure water jet propeller (rotating by 90 degrees)

FIG. 9 is a schematic view of a ring-shaped guide vane

FIG. 10 is a schematic view of a pilot transmission mechanism in an aircraft carrier

Fifth, detailed description of the invention

In the figure, 1 main shaft, 2 roller frames, 3 bearing rollers, 4 water delivery channels and raceways, 5 water inlet pistons, 6 water discharge pistons, 7 water inlet valves, 8 check valves, 9 split pump bodies, 10 bearing disc seats, 11 bearings (111000 type), 12 fastening bushings and 13 bearing covers

Example one

As can be seen from the figure, the main shaft 1, the roller frame 2, the bearing roller 3, the water delivery channel also constituting raceway 4, the water inlet piston 5, the water inlet plug 6, the water inlet valve 7, the check valve 8, the split pump body 9, the bearing disk seat 10, the bearing (111000 type) 11, the fastening bush 12 and the bearing cover 13. The main shaft of the high-pressure water-jet propeller rotates for a circle, and the piston is fed and discharged back and forth three times. The volume of the water inlet piston is twice that of the water discharge piston, and a high-pressure water source is always provided to continuously discharge high-pressure water flow outwards in the reciprocating stroke.

Selecting: the rotating speed of the main shaft is 780 r/min; one side of the large combination is 18 pairs of cylinders; the ejection opening is preferably 400 m'm.

Calculating the formula:

the total displacement/s is the volume of the water discharging telephone plug, the number of times of the water inlet telephone plug to reciprocate, the number of work done by the main shaft rotating for one circle, the number of the main shaft rotating speed per second, the number of the cylinders per pair/1000

Calculating that the lift is 140mm, the cylinder number is 18, and the jet orifice is 400mm

Namely: 7.072 × 7.072 × 3.14 × 14 × 2 × 3 × 13 × 18/1000 ═ 3086 liters/S

The discharge capacity is 3.086T/S

Flow rate: 3.086/(0.2X 3.14) ═ 24.57m/s

Speed of flight: section 24.57 × 3600/1000/1.85 ═ 47.8

And (3) knotting: total displacement 3.085T/s, flow rate: 24.57m/s, speed of flight: section 47.8

The high-pressure water-jet propeller is provided with three pairs of high-pressure water-jet pumps at the positions of 0 degree, 30 degrees, 60 degrees, 90 degrees, 120 degrees and 150 degrees respectively and simultaneously jet high-pressure water flow in parallel, the main shaft rotates for a circle, and the total number of the high-pressure water-jet pumps is 18, are uniformly and continuously jetted with high-pressure water flow, pass through a transition curve jet orifice (not shown), and form high-pressure water column jet through the annular guide vane and the jet straight pipe, and the length of the jet straight pipe is.

The function of the annular flow deflector: the liquid turbulence state is changed into the laminar flow state, and the high-pressure water column is ensured not to be diffused.

The annular flow deflector (12 multiplied by 1.5) requires extremely strict concentricity, so the jet orifice and the annular flow deflector are manufactured into a whole.

The navigation speed depends on the total displacement, the number of cylinders, the cylinder diameter, the lift, the flow speed, the jet caliber and the rotating speed; (if the speed is increased to 840r/min sailing speed, 51.4 knots).

The above items can be optimized or changed at will by the manufacturer, and one principle cannot be changed, that is: the volume of the inlet microphone plug is twice that of the outlet microphone plug.

The submarine or the destroyer front guiding device is provided with one large-combination high-pressure water jet propeller tail part which is provided with a plurality of large-combination high-pressure water jet propellers, the large-combination high-pressure water jet propeller has enough propelling force, and the sailing speed can reach 47.8 knots.

The front guiding transverse device of the aircraft carrier is provided with two large-combined high-pressure water-jet propellers, the two large-combined high-pressure water-jet propellers are driven by a direction control handle chain wheel (see figure 10), the tail device is provided with more large-combined high-pressure water-jet propellers, the large-combined high-pressure water-jet propellers have enough propelling force, and the sailing speed can reach 47.8 knots.