CN107673251B

CN107673251B - But automatically regulated's marine seismic exploration towrope winch

Info

Publication number: CN107673251B
Application number: CN201711108174.XA
Authority: CN
Inventors: 刘洪卫; 邢磊; 刘怀山; 吕博然
Original assignee: Ocean University of China
Current assignee: Ocean University of China
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2023-06-30
Anticipated expiration: 2037-11-10
Also published as: CN107673251A

Abstract

An automatically adjustable marine seismic exploration towing winch comprises a winding drum arranged on a rotating shaft, wherein a motor of the winch drives a transmission roller through a transmission chain, and the transmission roller drives the rotating shaft through a reduction gearbox; the reduction gearbox comprises a three-stage speed change gear and an automatic adjusting gear shaft, the automatic adjusting gear shaft comprises a supporting shaft, a forward gear shaft, an adjusting gear shaft and a reverse gear shaft, a piston part of the winch braking system is arranged at a position close to the two-stage gear, the piston part is connected with a braking part through a guide pipe, and the braking part is used for braking a rotating shaft. The hydraulic pressure bin with larger volume is not needed, the hydraulic pressure bin runs in a double-line synchronous conduction mode, the working pressure of each part is shared, the automatic adjusting gear can automatically rotate when the traction force borne by the winch is overlarge, the gear and the motor are protected, the service life is prolonged, the automatic braking system transmits partial traction force to the winch base, the load of the winding drum and the gear is reduced, and the use reliability is greatly improved.

Description

But automatically regulated's marine seismic exploration towrope winch

Technical Field

The invention relates to a winch used for marine seismic exploration, in particular to an automatically adjustable marine seismic exploration towing winch.

Background

The marine seismic exploration towing winch is one of important components in marine seismic exploration and plays a very important role in the marine seismic exploration operation process. At present, the earthquake winch used in the marine earthquake exploration is generally a hydraulic winch, has large volume and weight, is fixed on a survey ship and cannot be disassembled, has high manufacturing cost and maintenance cost, basically fixed operation mode and insufficient flexibility, and is greatly influenced by the condition of a ship. There are also a number of problems in the construction process. 1. The earthquake winch has larger volume, the sight of a rear operator is blocked, the noise is larger when the winch runs, the rear operator cannot find or hear the condition of the front cable laying end in real time, and when an emergency occurs, the earthquake winch cannot respond in time; 2. the winch power system is single, and when faults occur, the maintenance period is long; 3. in the process of winding and unwinding the towing rope, due to uncertainty of the factors such as the flow rate, the flow direction, the wind speed, the wind direction and the like of the seawater, the towing rope is stressed unevenly, so that the towing force on the winch is different, the situation that the power exceeds the towing force can occur at a certain moment, and the service life of the winch is influenced. In view of the above, the present invention provides an automatically adjustable marine seismic streamer winch.

Disclosure of Invention

The invention aims to provide an automatically adjustable marine seismic exploration towing winch, which can well solve the problems.

The automatically adjustable marine seismic exploration towing winch is characterized by comprising a base, a winding drum and a control box with a brake system, wherein a rotating shaft is arranged above the base;

wherein, a control board is arranged outside the control box, a reduction gearbox and two alternating current asynchronous motors are arranged inside the control box, and one of the motors is reserved; the alternating current asynchronous motor drives a transmission roller through a transmission chain, and the transmission roller drives a rotating shaft through a reduction gearbox;

the inside of the reduction gearbox is provided with a primary linkage gear coaxially linked with the transmission idler wheel, two secondary gears simultaneously driven by the primary linkage gear, two secondary linkage gears respectively coaxially linked with the two secondary gears, and a tertiary gear simultaneously driven by the two secondary linkage gears; the tertiary gear is fixed on the rotating shaft to drive the winding drum; the secondary gear and the coaxial linkage secondary linkage gear are fixed on the automatic adjusting gear shaft; the brake system comprises a piston part sleeved on the automatic adjusting gear shaft and a brake part used for braking the rotating shaft;

the automatic adjusting gear shaft comprises a supporting shaft, a forward gear shaft, an adjusting gear shaft and a reverse gear shaft are sleeved on the supporting shaft in sequence, and a tension spring is positioned between the forward gear shaft and the adjusting gear shaft and between the adjusting gear shaft and the reverse gear shaft; one end of the butt joint of the forward gear shaft and the adjusting gear shaft is provided with a plurality of forward teeth with the same structure, one side of each forward tooth is parallel to the axis of the forward gear shaft, and the other side is a bevel edge; one end of the adjusting gear shaft, which is in butt joint with the forward gear shaft, is provided with a plurality of reverse teeth matched with the forward teeth of the forward gear shaft; one end of the adjusting gear shaft, which is in butt joint with the reverse gear shaft, is provided with a plurality of reverse symmetrical teeth with the same structure, one side of each reverse symmetrical tooth is parallel to the axis of the adjusting gear shaft, the other side of each reverse symmetrical tooth is a bevel edge, and each reverse symmetrical tooth is symmetrical with the reverse tooth one by one; one end of the reverse gear shaft, which is in butt joint with the adjusting gear shaft, is provided with a plurality of forward symmetrical teeth which are matched with the reverse symmetrical teeth of the adjusting gear shaft, and each forward symmetrical tooth is symmetrical with the forward tooth one by one;

the secondary gear is fixed on the reverse gear shaft, and the secondary movable gear is fixed on the forward gear shaft;

the piston part of the brake system is arranged at a position close to the secondary gear, the piston part comprises a first oil storage cabin containing hydraulic oil, a piston is arranged on one surface of the first oil storage cabin facing the secondary gear, and a return spring of the piston is further arranged in the first oil storage cabin;

the brake part of the brake system comprises a second oil storage bin which is communicated with the first oil storage bin through a guide pipe and contains hydraulic oil, the second oil storage bin is provided with a movable brake block used for braking the rotating shaft, and a return spring of the movable brake block is arranged in the second oil storage bin.

The rotation radius ratio of the alternating current asynchronous motor to the transmission roller, the primary linkage gear to the secondary gear and the secondary linkage gear to the tertiary gear is 1/2, 1/6 and 1/2 respectively.

The piston part of the brake system is sleeved on the outer side of the automatic adjusting gear shaft to be close to the secondary gear, namely the section of the first oil storage cabin of the piston part is circular and sleeved on the outer side of the automatic adjusting gear shaft, the diameter of the inner ring is larger than that of the automatic adjusting gear shaft so as to avoid friction of the automatic adjusting gear shaft, the piston is arranged on the side, facing the secondary gear, of the first oil storage cabin, the section of the piston is also circular, and the diameter of the inner ring is larger than that of the automatic adjusting gear shaft.

The rotary shaft is provided with an annular boss coaxial with the rotary shaft, and the movable brake block of the brake part realizes the braking of the rotary shaft by rubbing the end face of the annular boss.

The front panel of the control panel is provided with an emergency stop button, a speed regulation button, a motor selection switch and a direction selection switch, and an external interface for extending the operation of the switches and the buttons to the outside of the control panel.

The invention has the advantages that: a. the winch for towing cables in marine earthquakes generally adopts a hydraulic winch, an alternating current asynchronous motor is adopted as power, a hydraulic bin with larger volume is not needed, the overall height of the winch is reduced, the running sound of the alternating current asynchronous motor is small, a rear operator can find or hear the situation of a front cable laying end in real time, and when an emergency situation occurs, the winch can respond timely; b. the winch operates in a double-line synchronous conduction mode, so that the working pressure of each component is shared, and invisible guarantee is provided for the whole system; c. when one motor fails, the standby motor can be switched rapidly, so that the operation time is saved. d. The reduction gearbox is provided with an automatic adjusting gear 9, when the traction force borne by the winch is overlarge, the winch can automatically rotate, the reduction gear and the motor are well protected, and the service life of the winch is greatly prolonged; e. the automatic braking system is arranged to transfer part of the drag force to the winch base, so that the load of the winding drum and the gear is reduced, and the use reliability is greatly improved; f. the external interface 702 is arranged, the control panel 7 can be independently led out of the winch, a winch operator can operate the winch to work in front of the winch, and the problem that the rear operator cannot intuitively retract and unwind the front end is solved.

Drawings

FIG. 1 is a schematic overall view of a marine seismic streamer winch.

FIG. 2 is a schematic diagram of the control box structure.

Fig. 3 is a diagram of the internal gear structure of the reduction gearbox.

Figure 4 is a schematic view of a self-adjusting gear,

wherein fig. 4a is a perspective view and fig. 4b is a perspective view.

FIG. 5 is a schematic diagram of a brake system.

Figure 6 control panel function keys show the diagram.

The device comprises a base 1, a winding drum 2, a control box 3, an alternating current asynchronous motor 4, a reduction box 5, a three-stage gear 501, a two-stage linkage gear 502, a two-stage gear 503, a one-stage linkage gear 504, a transmission roller 6, a control board 7, an emergency stop button 701, an external connection interface 702, a speed regulation button 703, a motor selection switch 704, a direction selection switch 705, a transmission chain 8, an automatic adjustment gear shaft 9, a forward gear shaft 901, an adjustment gear shaft 902, a reverse gear shaft 903, a brake system 10, a piston 101, a first oil storage tank 102, a second oil storage tank 103, a movable brake pad 104, a guide pipe 105, a return spring 106, a return spring 107 and a rotating shaft 11.

Detailed Description

FIG. 1 is an overall schematic diagram of a marine seismic streamer winch, comprising a base 1, a reel 2, and a control box 3 containing a brake system 10, wherein a rotating shaft 11 is arranged above the winch base 1, the reel 2 is mounted on the rotating shaft 11, the control box 3 is mounted above the winch base 1, and one end of the rotating shaft 11 is connected with the control box 3, wherein a seismic streamer is wound on the reel;

fig. 2 is a schematic diagram of a control box structure, a control board 7 is arranged outside the control box 3, a reduction gearbox 5 and two alternating current asynchronous motors 4 are arranged inside the control box 3, and one alternating current asynchronous motor is reserved for later use; the alternating current asynchronous motor 4 drives a driving roller 6 through a driving chain 8, and the driving roller 6 drives a rotating shaft 11 through a reduction gearbox 5;

fig. 3 is a gear structure diagram of the inside of the reduction gearbox, wherein a primary linkage gear 504 coaxially linked with a transmission roller 6, two secondary gears 503 simultaneously driven by the primary linkage gear 504, two secondary linkage gears 502 respectively coaxially linked with the two secondary gears 503, and a tertiary gear 501 simultaneously driven by the two secondary linkage gears 502 are arranged in the reduction gearbox 5; the tertiary gear 501 is fixed on the rotating shaft 11 to realize driving of the winding drum 2; the secondary gear 503 and the coaxial linkage secondary linkage gear 502 are fixed on the automatic adjusting gear shaft 9; the brake system 10 comprises a piston part and a brake part, wherein the piston part is sleeved on the automatic adjusting gear shaft 9, and the brake part brakes the rotating shaft 11;

fig. 4 is a schematic diagram of an automatic adjusting gear, the automatic adjusting gear shaft 9 includes a supporting shaft, on which a forward gear shaft 901, an adjusting gear shaft 902, and a reverse gear shaft 903 are sequentially sleeved, and a tension spring located between the forward gear shaft 901 and the adjusting gear shaft 902, and a tension spring located between the adjusting gear shaft 902 and the reverse gear shaft 903; one end of the forward gear shaft 901, which is in butt joint with the adjusting gear shaft 902, is provided with a plurality of forward teeth with the same structure, one side of each forward tooth is parallel to the axis of the forward gear shaft 901, and the other side is a bevel edge; one end of the adjusting gear shaft 902, which is in butt joint with the forward gear shaft 901, is provided with a plurality of reverse teeth matched with the forward teeth of the forward gear shaft 901; one end of the adjusting gear shaft 902, which is in butt joint with the reverse gear shaft 903, is provided with a plurality of reverse symmetrical teeth with the same structure, one side of each reverse symmetrical tooth is parallel to the axis of the adjusting gear shaft 902, the other side is a bevel edge, and each reverse symmetrical tooth is symmetrical with the reverse tooth one by one; one end of the reverse gear shaft 903, which is in butt joint with the adjusting gear shaft 902, is provided with a plurality of forward symmetrical teeth matched with the reverse symmetrical teeth of the adjusting gear shaft 902, and each forward symmetrical tooth is symmetrical with the forward teeth one by one;

the secondary gear 503 is fixed on a reverse gear shaft 903, and the secondary movable gear 502 is fixed on a forward gear shaft 901; the three-stage gear 501, the first-stage linkage gear 504 and the adjusting gear shaft 902 can only rotate in situ, and the two-stage linkage gear 502 (fixed with the forward gear shaft 901) and the two-stage gear 503 (fixed with the reverse gear shaft 903) can slide along the rotating shaft;

during normal operation, the secondary gear 503 and the secondary movable gear 502 rotate synchronously, when the traction force of the winding drum 2 is too large or the system is decelerated, the transmission direction of the force in the automatic adjusting gear shaft 9 is changed from the reverse gear shaft 903 to the adjusting gear shaft 902 to the forward gear shaft 901 to be reverse transmission, at this time, the oblique sides between the adjusting gear shaft 902 and the reverse gear shaft 903 are stressed, when the rotating speeds of the two rotating speeds are different, the distance between the two rotating speeds is gradually increased, and when the distance exceeds the vertex of the tooth, the angle is automatically rotated for adjustment. Similarly, if the speed is gradually increased, the oblique side between the forward gear shaft 901 and the adjusting gear shaft 902 is stressed, when the acceleration is overlarge, the distance between the forward gear shaft 901 and the adjusting gear shaft 902 is gradually increased, and when the distance exceeds the vertex of the tooth, the angle is automatically rotated for adjustment. The problem of asynchronous rotation speeds of the winding drum 2 and the motor is solved, and the possibility of damage to each part is avoided;

fig. 5 is a schematic structural diagram of a brake system, wherein a piston part of the brake system 10 is installed at a position close to a secondary gear 503, the piston part comprises a first oil storage cabin 102 containing hydraulic oil, a piston 101 is arranged on one surface of the first oil storage cabin 102 facing the secondary gear 503, a return spring 106 of the piston 101 is further arranged in the first oil storage cabin 102, and the return spring 106 returns the piston 101 through retreating; the braking part of the braking system 10 comprises a second oil storage bin 103 which is communicated with the first oil storage bin 102 through a conduit 105, the second oil storage bin 103 is provided with a movable brake block 104 for braking the rotating shaft 11, the second oil storage bin 103 is internally provided with a return spring 107 of the movable brake block 104, and the return spring 107 returns the movable brake block 104 through back pulling;

when the traction force applied to the winding drum 2 is large to a certain extent or the system is decelerated too fast, the automatic adjusting gear 9 is adjusted, the reverse gear shaft 903 moves outwards, the secondary gear 503 is driven to squeeze the piston 101, the pressure is transmitted to the brake pad 104 through liquid, the brake pad is used for braking the rotating shaft 11, and after the adjustment is completed, the return spring 106 and the return spring 107 enable the whole brake system to return to the original position. The speed reduction efficiency of the winding drum is quickened, part of the drag force is transferred to the winch base 1, the load of each gear is lightened, and the use reliability is greatly improved.

Fig. 6 is a diagram showing control panel function keys, and the front panel of the control panel 7 has an emergency stop button 701, a speed adjustment button 703, a motor selection switch 704, and a direction selection switch 705, and an external interface 702 extending the above switches and buttons to the outside of the control panel 7. When the winch works, the speed regulating button 703 is rotated to the minimum, the emergency stop button 701 is unscrewed, the switch 704 is used for selecting the gear of the motor 1, the 'pay-off' or 'take-up' key in the direction selecting switch 705 is pressed, the speed regulating button 703 is regulated to control the cable paying-off (cable take-up) speed to work, and if an emergency occurs, the emergency stop button 701 is pressed to carry out overall power-off.

Aiming at the problem that the rear operators cannot intuitively pay-off and pay-off the front end cable, the front control panel can be independently led out through the conversion interface 702, and winch operators can operate the winch at the stern to work.

In use of the invention, the seismic streamers are wound on the reel 2 and the entire system is mounted on the deck of a survey vessel, with the individual function keys of the control panel 7 being manipulated to control the direction of rotation of the reel to thereby place or retrieve the seismic streamers into or from the water.

Accordingly, the structure and function of the present invention has the following features:

a. the control box 3 is adopted, all parts are integrated, the waterproof and moistureproof problems are solved in a humid marine environment, and the running stability of the system is greatly improved.

b. The alternating current asynchronous motor 4 is adopted as the power of the winch, the whole structure is reasonable, the work is stable, the operation noise is low, the operation and the maintenance are convenient, and the earthquake winch with the weight exceeding 2.5t is reduced to less than 1t.

c. The reduction gearbox 5 operates in a double-line synchronous conduction mode, so that the working pressure of each component is shared, and double guarantees are provided for the normal operation of the whole system.

d. The 3-level speed reduction arrangement is adopted, the rotation radius ratio of the alternating current asynchronous motor 4 to the transmission idler wheel 6, the primary linkage gear 504 to the secondary gear 503 and the rotation radius ratio of the secondary linkage gear 502 to the tertiary gear 501 are respectively 1/2, 1/6 and 1/2, and the rotation speed of the alternating current asynchronous motor 4 is 0-1440rad/min when the rotation speed of the alternating current asynchronous motor 4 is converted to 0-1rad/s when the rotation speed of the alternating current asynchronous motor is converted to the winding drum 2.

e. The reduction gearbox 5 is provided with an automatic adjusting gear shaft 9, and during normal operation, the secondary gear 503 and the secondary movable gear 502 synchronously rotate, when the traction force of the winding drum 2 is overlarge or the system is decelerated, the transmission direction of force in the automatic adjusting gear shaft 9 is changed from a reverse gear shaft 903 to an adjusting gear shaft 902 to a forward gear shaft 901 to be reverse, at the moment, the bevel edge between the adjusting gear shaft 902 and the forward gear shaft 901 is stressed, when the rotating speeds of the adjusting gear shaft 902 and the forward gear shaft 901 are different, the distance between the adjusting gear shaft 902 and the forward gear shaft is gradually increased, and when the distance exceeds the vertex of the teeth, the automatic adjustment is performed. Similarly, if the speed is gradually increased, the bevel edge between the counter gear shaft 903 and the adjusting gear shaft 902 is stressed, when the acceleration is excessive, the distance between the counter gear shaft 903 and the adjusting gear shaft is gradually increased, and when the distance exceeds the vertex of the teeth, the adjustment is automatically performed. The problem of asynchronous rotation speed of the winding drum 2 and the motor is solved, and the possibility of damage to each part is avoided.

f. When the traction force of the winding drum 2 is too large to a certain extent or the system is too fast in speed reduction, the automatic regulating gear 9 is regulated, the reverse gear shaft 903 moves outwards, the secondary gear 503 is driven to squeeze the piston 101, the pressure is transmitted to the brake pad 104 through liquid, so that the rotating shaft 11 is braked, the efficiency of the winding drum speed reduction is improved, part of the traction force is transferred to the winch base 1, the load of each gear is reduced, and the use reliability is greatly improved.

g. The control box 3 is provided with two alternating current asynchronous motors 4, one for standby. When one motor fails, the motor can be quickly switched to the standby motor, so that the maintenance time of the equipment is shortened, and the working efficiency is improved.

h. The external interface 702 is arranged, the control panel 7 can be independently led out of the winch, a winch operator can operate the winch to work in front of the winch, and the problem that the rear operator cannot intuitively retract and unwind the front end is solved.

Claims

1. The automatically adjustable marine seismic exploration towing winch is characterized by comprising a base (1), a winding drum (2) and a control box (3) with a brake system (10) inside, wherein a rotating shaft (11) is arranged above the base (1), the winding drum (2) is arranged on the rotating shaft (11), the control box (3) is arranged above the winch base (1), and one end of the rotating shaft (11) is connected with the control box (3);

wherein, a control board (7) is arranged outside the control box (3), a reduction gearbox (5) and two alternating current asynchronous motors (4) are arranged inside the control box (3), and one is reserved; the alternating current asynchronous motor (4) drives a driving roller (6) through a driving chain (8), and the driving roller (6) drives a rotating shaft (11) through a reduction gearbox (5);

a primary linkage gear (504) coaxially linked with the transmission roller (6), two secondary gears (503) simultaneously driven by the primary linkage gear (504), two secondary linkage gears (502) respectively coaxially linked with the two secondary gears (503), and a tertiary gear (501) simultaneously driven by the two secondary linkage gears (502) are arranged in the reduction gearbox (5); the tertiary gear (501) is fixed on the rotating shaft (11) to drive the winding drum (2); the secondary gear (503) and the coaxially linked secondary movable gear (502) are fixed on the automatic adjusting gear shaft (9); the brake system (10) comprises a piston part sleeved on the automatic adjusting gear shaft (9) and a brake part used for braking the rotating shaft (11);

the automatic adjusting gear shaft (9) comprises a supporting shaft, wherein a forward gear shaft (901), an adjusting gear shaft (902) and a reverse gear shaft (903) and a tension spring positioned between the forward gear shaft (901) and the adjusting gear shaft (902) and a tension spring positioned between the adjusting gear shaft (902) and the reverse gear shaft (903) are sleeved on the supporting shaft in sequence; one end of the forward gear shaft (901) which is in butt joint with the adjusting gear shaft (902) is provided with a plurality of forward teeth with the same structure, one side of each forward tooth is parallel to the axis of the forward gear shaft (901), and the other side is a bevel edge; one end of the adjusting gear shaft (902) which is in butt joint with the forward gear shaft (901) is provided with a plurality of reverse teeth which are matched with the forward teeth of the forward gear shaft (901); one end of the adjusting gear shaft (902) is in butt joint with the reverse gear shaft (903) is provided with a plurality of reverse symmetrical teeth with the same structure, one side of each reverse symmetrical tooth is parallel to the axis of the adjusting gear shaft (902), the other side of each reverse symmetrical tooth is a bevel edge, and each reverse symmetrical tooth is symmetrical with the reverse tooth one by one; one end of the reverse gear shaft (903) in butt joint with the adjusting gear shaft (902) is provided with a plurality of forward symmetrical teeth matched with the reverse symmetrical teeth of the adjusting gear shaft (902), and each forward symmetrical tooth is symmetrical with the forward teeth one by one;

the secondary gear (503) is fixed on a reverse gear shaft (903), and the secondary movable gear (502) is fixed on a forward gear shaft (901);

the three-stage gear (501), the first-stage linkage gear (504) and the adjusting gear shaft (902) can only rotate in situ, and the two-stage linkage gear (502) and the two-stage gear (503) can slide along the axial direction in a small amplitude;

the piston part of the brake system (10) is arranged at a position close to the secondary gear (503), the piston part comprises a first oil storage cabin (102) containing hydraulic oil, a piston (101) is arranged on one surface of the first oil storage cabin (102) facing the secondary gear (503), and a return spring (106) of the piston (101) is further arranged in the first oil storage cabin (102);

the braking part of the braking system (10) comprises a second oil storage bin (103) which is communicated with the first oil storage bin (102) through a conduit (105) and contains hydraulic oil, the second oil storage bin (103) is provided with a movable brake block (104) for braking the rotating shaft (11), and a return spring (107) of the movable brake block (104) is arranged in the second oil storage bin (103).

2. The automatically adjustable marine seismic streamer winch according to claim 1, wherein the rotation radius ratio of the alternating current asynchronous motor (4) to the transmission roller (6), the primary linkage gear (504) to the secondary gear (503), and the secondary linkage gear (502) to the tertiary gear (501) is 1/2, 1/6, 1/2, respectively.

3. The automatically adjustable marine seismic streamer winch according to claim 1, wherein the piston part of the braking system (10) is attached to the secondary gear (503) by being sleeved outside the automatically adjusting gear shaft (9), i.e. the cross section of the first oil storage tank (102) of the piston part is circular and sleeved outside the automatically adjusting gear shaft (9), the diameter of the inner ring is larger than that of the automatically adjusting gear shaft (9) so as to avoid friction of the automatically adjusting gear shaft (9), the surface of the first oil storage tank (102) facing the secondary gear (503) is provided with a piston (101), the cross section of the piston is also circular, and the diameter of the inner ring is larger than that of the automatically adjusting gear shaft (9).

4. The automatically adjustable marine seismic streamer winch according to claim 1, wherein the rotating shaft (11) is provided with an annular boss coaxial with the rotating shaft (11), and the movable brake pad (104) of the brake part brakes the rotating shaft (11) by rubbing the end surface of the annular boss.

5. The automatically adjustable marine seismic streamer winch of claim 1, wherein the front panel of the control panel (7) has an emergency stop button (701), a governor button (703), a motor selector switch (704) and a direction selector switch (705), and an external interface (702) extending the operation of the switches and buttons out of the control panel (7).