A self-rotating spray gun with electromechanical balanced rotation speed for front-mix ship rust removal

Abstract

The invention discloses a self-rotating spray gun with electromechanical balanced rotation speed for front-mix ship rust removal, comprising a rotating body sleeve, a skeleton oil seal, a rotating liquid outlet long shaft, a thrust ball bearing, an angular contact bearing, a skeleton-free oil seal, a rotating alloy butt sleeve, a stationary alloy butt sleeve, a rotating body liquid inlet lock nut, a fluororubber O-ring, a supporting spring, a DC inverter motor, a gearbox, a motor gear, a deep groove ball bearing, a self-rotating gear, an O-ring, a flange, a sheath lock nut, a rotating liquid outlet long shaft sheath, a bolt, a deep groove ball bearing, a rubber oil seal, a rotating spray head lock nut, a rotating spray head, an upper alloy nozzle, a lower alloy nozzle, a spray gun holder, a spray gun rod, a gun rod liquid inlet joint, a lithium battery, a wire, and a resistance speed regulator; the invention is a device capable of balancing the rotation speed of a self-rotating spray head through a DC inverter motor.

Description

Technical Field

[0001] The invention discloses a self-rotating spray gun with electromechanically balanced rotation speed for front-mix ship rust removal, in particular to a device capable of balancing the rotation speed of a self-rotating spray head through a DC inverter motor. Background Art

[0002] At present, most of the rotating nozzles of marine rust removers are self-rotating, and the self-rotating forms are divided into single nozzle rotation and double nozzle rotation: single nozzle rotation is only suitable for pure water medium, and mixed water medium will clog and wear the rotating core inside the rotating nozzle, causing the rotation to stop suddenly during the rotation process and cannot work normally; in this way, only two wear-resistant alloy nozzles can be used, the vertical distance between the two nozzles is 30mm, and the coaxial angle is 30°. The recoil generated by the alloy nozzle when the high-speed water jet is sprayed makes it rotate naturally, and this rotation speed is very unstable due to a variety of objective conditions: the rotation speed is high when the pressure is high, and the rotation speed is very low or no rotation; the rotation speed is high when the nozzle diameter is large, and the rotation speed is very low or no rotation; the rotating nozzle cannot maintain a rotation speed range of about 1000rpm. However, there is no device that can keep the rotating nozzle in a rotation speed range of about 1000rpm under different objective conditions to solve this problem. Summary of the invention

[0003] The present invention aims to solve the problem that "most of the rotating nozzles of ship rust removers are of self-rotating type, and the angle recoil generated by the angle between the nozzles when spraying high-pressure water causes the rotating nozzle to self-rotate at high speed; the rotation speed is very unstable due to the influence of various objective conditions: the rotation speed is high when the pressure is high, and vice versa, the rotation speed is very low or there is no rotation; the rotation speed is high when the nozzle diameter is large, and vice versa, the rotation speed is very low or there is no rotation; the rotating nozzle cannot maintain a rotation speed range of about 1000rpm". A self-rotating spray gun design of a front-mixed ship rust remover with an electrically balanced rotation speed is proposed, and a gearbox is added to the rotating liquid outlet long axis, and the purpose of balancing the rotation speed is achieved through the speed regulation of a DC inverter motor.

[0004] The present invention is achieved through the following technical solutions:

[0005] A self-rotating spray gun with a front-mixed ship rust removal electromechanically balanced rotation speed, comprising a rotating body sleeve 1, a skeleton oil seal 2, a rotating liquid outlet long shaft 3, a thrust ball bearing 4, an angular contact bearing 5, a skeleton-free oil seal 6, a rotating alloy butt sleeve 7, a stationary alloy butt sleeve 8, a rotating body liquid inlet lock nut 9, a fluororubber O-ring 10, a support spring 11, a DC inverter motor 12, a gearbox 13, a motor gear 14, a deep groove ball bearing 15, a self-rotating gear 16, an O-ring 17, a flange 18, a sheath lock nut 19, a rotating liquid outlet long shaft sheath 20, a bolt 21, a deep groove ball bearing 22, a rubber oil seal 23, a rotating spray head lock Nut 24, rotating nozzle 25, upper alloy nozzle 26, lower alloy nozzle 27, spray gun holder 28, spray gun rod 29, gun rod liquid inlet joint 30, lithium battery 31, wire 32, resistance speed regulator 33; it is characterized in that the skeleton oil seal 2, thrust ball bearing 4, angular contact bearing 5, and skeleton-free oil seal 6 are sequentially installed on the outside of the rotating liquid outlet long axis 3, the rotating alloy docking sleeve 7, and the support spring 11 are installed on the inside of the rotating liquid outlet long axis 3; the static alloy docking sleeve 8, the fluorine rubber O-ring 10 are installed in the rotating body liquid inlet lock nut 9, and the rotating body liquid inlet lock nut 9 is installed on the rotating body sleeve 1; the motor gear 14, deep The deep groove ball bearing 15 and the self-rotating gear 16 are respectively installed in the gearbox 13. The DC inverter motor 12 and the motor gear 14, the deep groove ball bearing 15 are coaxially fixed on the gearbox 13, the self-rotating gear 16 is coaxial with the rotating liquid outlet long axis 3 and is engaged with the motor gear 14. The gearbox 13 is installed on the rotating body sleeve 1; the deep groove ball bearing 22 and the rubber oil seal 23 are installed in the rotating liquid outlet long axis sleeve 20, the rotating liquid outlet long axis sleeve 20 passes through the rotating liquid outlet long axis 3 and is installed on the flange 18, and is locked with the sleeve lock nut 19, and the flange is fastened to the gearbox 13 with bolts 21; the rotating nozzle lock nut 24, the upper alloy nozzle 26, the lower alloy nozzle 27 are installed on the rotating nozzle 25, wherein the radial center distance between the upper alloy nozzle 26 and the lower alloy nozzle 27 is 30 mm, the axial angle is and 30°, and the rotating nozzle 25 is installed at the end of the rotating liquid outlet long axis through the nozzle lock nut; the spray gun holder 28 and the gun rod liquid inlet joint 30 are installed on the spray gun rod 29, and the spray gun rod 29 is installed on the rotating body liquid inlet lock nut 9; the positive and negative poles of the DC inverter motor 12 are connected through the wire 32, the resistance speed regulator 33 and the positive and negative poles of the lithium battery 31, forming a front-mixed ship rust removal electromechanical balanced rotation speed self-rotating spray gun.

[0006] In order to further facilitate the control operation, a wire 32 is installed between the DC inverter motor 12 and the lithium battery 32 for adjusting the rotation speed of the motor to control the rotation speed of the rotary nozzle 25 .

[0007] The present invention has the following advantages over the existing rotary sprinkler:

[0008] 1. With high-pressure bearing performance: it can work normally at a pressure of 60MPa.

[0009] 2. It has the function of automatically balancing the rotation speed of the nozzle: when the pressure is high, the DC inverter motor 12 is changed to a generator to generate electricity to charge the lithium battery 31 to absorb energy and reduce the nozzle speed; when the pressure is low, the rotary nozzle 25 rotates at a low speed or does not rotate, the lithium battery 32 discharges, and the DC inverter motor 12 drives the gearbox 13 to rotate the rotary nozzle 25.

[0010] 3. Long life function: the two nozzles are made of YS2t hard alloy, which is ultra-fine and wear-resistant.

[0011] 4. The structure is simple, the self-rotating spray gun with electromechanical balanced rotation speed of the entire front-mix ship rust removal is small in size, light in weight, complete in specifications and models, easy to install, and easy to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a structural diagram of the self-rotating spray gun with a mechanical and electrical balanced rotation speed for the front-mixed ship rust removal;

[0014] In the figure:

[0015] Rotating body sleeve 1, skeleton oil seal 2, rotating liquid outlet long axis 3, thrust ball bearing 4, angular contact bearing 5, skeleton-free oil seal 6, rotating alloy docking sleeve 7, stationary alloy docking sleeve 8, rotating body liquid inlet lock nut 9, fluororubber O-ring 10, support spring 11, DC inverter motor 12, gearbox 13, motor gear 14, deep groove ball bearing 15, rotating gear 16, O-ring 17, flange 18, sleeve lock nut 19, rotating liquid outlet long axis sleeve 20, bolt 21, deep groove ball bearing 22, rubber oil seal 23, rotating nozzle lock nut 24, rotating nozzle 25, upper alloy nozzle 26, lower alloy nozzle 27, spray gun butt 28, spray gun rod 29, gun rod liquid inlet joint 30, lithium battery 31, wire 32, resistance speed regulator 33. DETAILED DESCRIPTION

[0016] A self-rotating spray gun with a front-mixed ship rust removal electromechanically balanced rotation speed, comprising a rotating body sleeve 1, a skeleton oil seal 2, a rotating liquid outlet long shaft 3, a thrust ball bearing 4, an angular contact bearing 5, a skeleton-free oil seal 6, a rotating alloy butt sleeve 7, a stationary alloy butt sleeve 8, a rotating body liquid inlet lock nut 9, a fluororubber O-ring 10, a support spring 11, a DC inverter motor 12, a gearbox 13, a motor gear 14, a deep groove ball bearing 15, a self-rotating gear 16, an O-ring 17, a flange 18, a sheath lock nut 19, a rotating liquid outlet long shaft sheath 20, a bolt 21, a deep groove ball bearing 22, a rubber oil seal 23, a rotating spray head lock Nut 24, rotating nozzle 25, upper alloy nozzle 26, lower alloy nozzle 27, spray gun holder 28, spray gun rod 29, gun rod liquid inlet joint 30, lithium battery 31, wire 32, resistance speed regulator 33; it is characterized in that the skeleton oil seal 2, thrust ball bearing 4, angular contact bearing 5, and skeleton-free oil seal 6 are sequentially installed on the outside of the rotating liquid outlet long axis 3, the rotating alloy docking sleeve 7, and the support spring 11 are installed on the inside of the rotating liquid outlet long axis 3; the stationary alloy docking sleeve 8, the fluororubber O-ring 10 are installed in the rotating body liquid inlet lock nut 9, and the rotating body liquid inlet lock nut 9 is installed on the rotating body sleeve 1; the motor gear 14, The deep groove ball bearing 15 and the self-rotating gear 16 are respectively installed in the gearbox 13. The DC inverter motor 12 and the motor gear 14, the deep groove ball bearing 15 are coaxially fixed on the gearbox 13. The self-rotating gear 16 is coaxial with the rotating liquid outlet long axis 3 and is engaged with the motor gear 14. The gearbox 13 is installed on the rotating body sleeve 1; the deep groove ball bearing 22 and the rubber oil seal 23 are installed in the rotating liquid outlet long axis sleeve 20, the rotating liquid outlet long axis sleeve 20 passes through the rotating liquid outlet long axis 3 and is installed on the flange 18, and is locked with a sleeve lock nut 19, and the flange is fastened to the gearbox 13 with bolts 21; the rotating nozzle The lock nut 24, the upper alloy nozzle 26, and the lower alloy nozzle 27 are installed on the rotating nozzle 25, wherein the radial center distance between the upper alloy nozzle 26 and the lower alloy nozzle 27 is 30 mm, and the axial angle is and 30°, and the rotating nozzle 25 is installed at the end of the rotating liquid outlet long axis through the nozzle lock nut; the spray gun holder 28 and the gun rod liquid inlet joint 30 are installed on the spray gun rod 29, and the spray gun rod 29 is installed on the rotating body liquid inlet lock nut 9; the positive and negative poles of the DC inverter motor 12 are connected through the wire 32, the resistance speed regulator 33 and the positive and negative poles of the lithium battery 31 to form a self-rotating spray gun with a front-mixed ship rust removal electromechanical balanced rotation speed.

[0017] During operation, the high-pressure mixed water of more than 30MPa enters the rotating body liquid inlet lock nut 9 through the gun barrel liquid inlet joint 30, and then passes through the static alloy docking sleeve 8, the rotating alloy docking sleeve 7, and enters the rotating liquid outlet long shaft 3, the skeleton oil seal 2, the skeleton-free oil seal 6, and the fluororubber O-ring 10 for sealing; the high-pressure mixed water of more than 30MPa enters the rotating nozzle 25 through the rotating liquid outlet long shaft 3, passes through the upper alloy nozzle 26, and the lower alloy nozzle 27 to be ejected at a high speed at an angle of 30°. The high-speed water generates a considerable recoil force to make the rotating liquid outlet long shaft 3 rotate synchronously at a high speed; the thrust ball bearing 4, the angular contact bearing 5, and the deep groove ball bearing 22 play the role of fixing the axial direction and reducing the friction force, and the rotation speed is as high as 6500rpm; the self-rotating gear 16 rotates synchronously with the rotating liquid outlet long shaft 3, and the driving motor gear 14 and the DC inverter motor 12 rotate synchronously. The rated speed of the DC inverter motor 12 is 1000rpm. At this time, the self-rotating gear 16 rotates synchronously with the rotating liquid outlet long shaft 3, and the driving motor gear 14 and the DC inverter motor 12 rotate synchronously. The rated speed of the DC inverter motor 12 is 1000rpm. The gear 16 drives the DC inverter motor 12 to rotate and generate electricity. The current passes through the wire 32, and the resistance speed regulator 33 supplies the lithium battery 31 to charge, so that the kinetic energy of the rotating nozzle is converted into electrical energy, the rotation speed is reduced, and the rotation speed is slightly greater than the rated speed of the DC inverter motor; when the high-pressure mixed water less than 30MPa passes through the gun barrel liquid inlet joint, the high-pressure mixed water enters the rotating nozzle 25 through the rotating liquid outlet long axis, passes through the upper alloy nozzle 26, and the lower alloy nozzle 27 is ejected at a high speed at an angle of 30°. The high-speed water produces a relatively small recoil force to make the rotating liquid outlet long axis 3 rotate synchronously at a low speed or not rotate; the lithium battery 31 supplies power to the DC inverter motor 12 through the wire 32 and the resistance speed regulator 33, adjusts the resistance speed regulator 33 to the DC inverter motor 12 to rotate at 1000rpm, drives the gearbox 13 to make the rotating nozzle 25 rotate synchronously, and achieves the design purpose of the self-rotating spray gun with electromechanical balanced rotation speed of the front-mixed ship rust removal.

[0018] When stopping working, turn off the power supply, stop the centrifugal pump from supplying fluid, clean the self-rotating spray gun with electrically balanced rotation speed of the front-mix ship rust removal machine, and place it in a dry place to air dry to prevent rust and ensure long-term normal use.

[0019] Practice has proved that the self-rotating spray gun with an electromechanical balanced rotation speed for pre-mixed ship rust removal manufactured according to the above scheme has a maximum bearing pressure range of 60MPa, 45MPa, 31.5MPa, and 20MPa, and the flow range of the self-rotating spray gun with an electromechanical balanced rotation speed for pre-mixed ship rust removal is 80L / min, 60L / min, 40L / min, and 20L / min.

Claims

1. A self-rotating spray gun for ship rust removal with electromechanical balanced rotation speed, comprising a rotating body sleeve (1), a skeleton oil seal (2), a rotating liquid outlet long shaft (3), a thrust ball bearing (4), an angular contact bearing (5), a skeleton-free oil seal (6), a rotating alloy butt sleeve (7), a stationary alloy butt sleeve (8), a rotating body liquid inlet lock nut (9), a fluororubber O-ring (10), a support spring (11), a DC inverter motor (12), a gearbox (13), a motor gear (14), a deep groove ball bearing (1 5), a self-rotating gear (16), an O-ring (17), a flange (18), a sheath lock nut (19), a rotating liquid outlet long shaft sheath (20), a bolt (21), a deep groove ball bearing (22), a rubber oil seal (23), a rotating nozzle lock nut (24), a rotating nozzle (25), an upper alloy nozzle (26), a lower alloy nozzle (27), a spray gun holder (28), a spray gun rod (29), a gun rod liquid inlet joint (30), a lithium battery (31), a wire (32), and a resistance speed regulator (33); wherein the invention is characterized in that The skeleton oil seal (2), thrust ball bearing (4), angular contact bearing (5), and skeleton-free oil seal (6) are sequentially installed on the outer side of the rotating liquid outlet long shaft (3); the rotating alloy butt sleeve (7) and the support spring (11) are installed on the inner side of the rotating liquid outlet long shaft (3); the stationary alloy butt sleeve (8) and the fluororubber O-ring (10) are installed in the rotating body liquid inlet lock nut (9); the rotating body liquid inlet lock nut (9) is installed on the rotating body sleeve (1); the motor gear (14), the deep The deep groove ball bearing (15) and the self-rotating gear (16) are respectively installed in the gearbox (13); the DC inverter motor (12) and the motor gear (14); the deep groove ball bearing (15) are coaxially fixed on the gearbox (13); the self-rotating gear (16) is coaxial with the rotating liquid outlet long axis (3) and is engaged with the motor gear (14); the gearbox (13) is installed on the rotating body sleeve (1); the deep groove ball bearing (22) and the rubber oil seal (23) are installed on the rotating liquid outlet long axis The shaft sleeve (20) is installed on the flange (18) through the rotating liquid outlet shaft (3) and is locked with a sleeve lock nut (19). The flange is fastened to the gearbox (13) with bolts (21); the rotating nozzle lock nut (24), the upper alloy nozzle (26), and the lower alloy nozzle (27) are installed on the rotating nozzle (25), wherein the radial center distance between the upper alloy nozzle (26) and the lower alloy nozzle (27) is 30 mm, and the axial angle is The angle of rotation of the rotating spray head (25) is 30°, and the rotating spray head (25) is installed at the end of the rotating liquid outlet long axis through the spray head lock nut; the spray gun holder (28) and the gun rod liquid inlet joint (30) are installed on the spray gun rod (29), and the spray gun rod (29) is installed on the rotating body liquid inlet lock nut (9); the positive and negative poles of the DC inverter motor (12) are connected through the wire (32), the resistance speed regulator (33) and the positive and negative poles of the lithium battery (31), so as to form a front-mixed ship rust removal electromechanical balanced rotation speed self-rotating spray gun.

2. The self-rotating spray gun with a front-mix ship rust removal electromechanically balanced rotation speed according to claim 1 is characterized in that The high-pressure mixed water with a pressure greater than 30 MPa enters the rotating body liquid inlet lock nut (9) through the gun barrel liquid inlet joint (30), and then passes through the stationary alloy butt sleeve (8), the rotating alloy butt sleeve (7), and enters the rotating liquid outlet long shaft (3), the skeleton oil seal (2), the skeleton-free oil seal (6), and the fluororubber O-ring (10) for sealing; the high-pressure mixed water with a pressure greater than 30 MPa enters the rotating nozzle (25) through the rotating liquid outlet long shaft, and passes through the upper alloy nozzle (26), the lower alloy nozzle (27) The high-speed water is ejected at an angle of 30° to form high-speed water, which generates a considerable recoil force to cause the rotating liquid outlet long shaft (3) to rotate synchronously at a high speed; the thrust ball bearing (4), the angular contact bearing (5), and the deep groove ball bearing (22) play a role in fixing the axial direction and reducing friction, and its rotation speed is as high as 6500rpm; the self-rotating gear (16) rotates synchronously with the rotating liquid outlet long shaft, and the driving motor gear (14) and the DC inverter motor (12) rotate synchronously, and the rated speed of the DC inverter motor is 1000rpm, at this time, the self-rotating gear drives the DC inverter motor to rotate and generate electricity, and the current passes through the wire (32), and the resistance speed regulator (33) supplies the lithium battery (31) to charge, so that the kinetic energy of the rotating spray head is converted into electrical energy, and the rotation speed is reduced, so that the rotation speed is slightly greater than the rated speed of the DC inverter motor; when the high-pressure mixed water less than 30MPa passes through the gun rod liquid inlet joint, the high-pressure mixed water enters the rotating spray head (25) through the rotating liquid outlet long axis, passes through the upper alloy nozzle (26), and the lower alloy nozzle (27) is ejected at a high speed at an angle of 30°, and the high-speed water generates a relatively small recoil force to make the rotating liquid outlet long axis (3) rotate synchronously at a low speed or not rotate; the lithium battery (31) supplies power to the DC inverter motor (12) through the wire (32) and the resistance speed regulator (33), and the resistance speed regulator is adjusted to the DC inverter motor to rotate at 1000rpm, and the gearbox is driven to make the rotating spray head rotate synchronously, so as to achieve the purpose of a front-mixed ship rust removal electromechanical balanced rotation speed self-rotating spray gun.

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