CN111824360B - Assembly method of oil distributor of controllable pitch propeller - Google Patents
Assembly method of oil distributor of controllable pitch propeller Download PDFInfo
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- CN111824360B CN111824360B CN202010526149.9A CN202010526149A CN111824360B CN 111824360 B CN111824360 B CN 111824360B CN 202010526149 A CN202010526149 A CN 202010526149A CN 111824360 B CN111824360 B CN 111824360B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H3/00—Propeller-blade pitch changing
- B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
- B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
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Abstract
The invention provides an assembly method of an oil distributor of a controllable pitch propeller, which comprises the following steps: connecting a plurality of slings to the oil distributor, wherein the slings are used for applying acting forces in a first direction, a second direction and a third direction to the oil distributor; controlling a sling to apply an acting force in a first direction to the oil distributor, and adjusting the concentricity of a valve core rod of the oil distributor and an oil pipe of the gear box; an oil pipe connecting the valve core rod and the gear box; a sling is controlled to apply acting force in a third direction to the oil distributor, and the oil distributor is connected with an oil distribution shaft and an output shaft of the gear box; checking the jumping degree of the first end of the oil distributor; if the jumping degree is detected to be qualified, controlling the sling to apply acting force in a second direction to the oil distributor, and performing anti-loosening treatment on a fastener connected with the oil distribution shaft and an output shaft of the gear box; and the control sling applies acting force in a third direction to the oil distributor and is connected with the shell of the oil distributor and the shell of the gear box. The oil distributor can quickly complete the assembly operation of the oil distributor, and the assembly operation efficiency of the oil distributor is improved.
Description
Technical Field
The disclosure relates to the technical field of controllable pitch propellers, in particular to an assembly method of an oil distributor of the controllable pitch propeller.
Background
The controllable-pitch propeller is a ship propulsion form widely applied at present, more and more ships adopt the controllable-pitch propeller as a propulsion device, and the controllable-pitch propeller is distributed in each cabin of the ship and is characterized in that the speed of a ship course is changed by the pitch of the controllable-pitch propeller. The oil distributor is an important part of the controllable-pitch propeller, and when the oil distributor works, hydraulic oil is conveyed into a variable-pitch oil cylinder of the controllable-pitch propeller through an oil distribution shaft of the oil distributor so as to push a piston in the variable-pitch oil cylinder to move back and forth to realize forward or reverse variable pitch of the controllable-pitch propeller. In addition, the oil distributor has strict positioning and mounting precision requirement, high equipment density of an oil distributor cabin and more limited points between the oil distributor and each equipment, so that the establishment of a reasonable oil distributor mounting method is particularly important.
In the related art, a valve core rod of an oil distributor is usually connected with an oil pipe of a gear box, an oil distribution shaft of the oil distributor is connected with an output shaft of the gear box, and finally a shell of the oil distributor is connected with a shell of the gear box through a fastener.
However, although the oil distributor can be installed in the related art, the oil distributor is often time-consuming, low in installation power and many in rework situations, resulting in low assembly work efficiency of the oil distributor.
Disclosure of Invention
The embodiment of the disclosure provides an assembly method of an oil distributor of a controllable pitch propeller, which can quickly complete the assembly operation of the oil distributor, ensure that the jumping degree of the assembled oil distributor meets the requirement, and improve the assembly operation efficiency of the oil distributor. The technical scheme is as follows:
the embodiment of the disclosure provides an assembling method of an oil distributor of a controllable pitch propeller, the oil distributor is provided with a first end connected with a gear box and a second end opposite to the first end, and the assembling method comprises the following steps: connecting a plurality of slings to the oil distributor, wherein one ends of the slings are connected with the oil distributor, the slings are used for applying acting forces to the oil distributor in a first direction, a second direction and a third direction, the first direction is a direction which is vertically upward along the radial direction of an oil distribution shaft of the oil distributor, the second direction is a direction which extends from the first end to the second end, and the third direction is a direction which extends from the second end to the first end; controlling the sling to apply the acting force in the first direction to the oil distributor, and adjusting the concentricity of a valve core rod of the oil distributor and an oil pipe of the gear box; an oil pipe connecting the valve core rod and the gear box; controlling the sling to apply acting force in the third direction to the oil distributor, and connecting the oil distribution shaft with an output shaft of the gearbox; checking the jumping degree of the first end of the oil distributor; if the jumping degree is detected to be qualified, controlling the sling to apply acting force in the second direction to the oil distributor, and performing anti-loosening treatment on a fastener which is connected with the oil distribution shaft and an output shaft of the gear box; and controlling the sling to apply the acting force in the third direction to the oil distributor, and connecting the shell of the oil distributor and the shell of the gear box.
In an implementation manner of the embodiment of the disclosure, the four slings include a first sling, a second sling, a third sling and a fourth sling, the first sling and the second sling are both used for applying the acting force in the first direction to the oil distributor, the force application direction of the first sling passes through the center of gravity of the oil distributor, one end of the second sling is connected with the second end, the third sling is used for applying the acting force in the second direction to the oil distributor, and the fourth sling is used for applying the acting force in the third direction to the oil distributor.
In another implementation manner of the embodiment of the disclosure, a force application direction of the third sling is parallel to an axial direction of an oil distribution shaft of the oil distributor, and a force application direction of the fourth sling and a force application direction of the first sling have an included angle not greater than 90 °.
In another implementation manner of the embodiment of the present disclosure, the controlling the sling to apply the acting force in the first direction to the oil distributor, and adjusting concentricity of a valve core rod of the oil distributor and an oil pipe of a gearbox includes: controlling the first sling and the second sling to apply acting force in the first direction to the oil distributor, so that the axis of the valve element rod and the axis of an oil pipe of the gearbox are at the same height; and adjusting the acting force applied by the second sling, and controlling the concentricity of the valve core rod and the oil pipe of the gear box to meet a set value.
In another implementation of the embodiment of the present disclosure, the controlling the sling to apply the acting force in the third direction to the oil distributor, and the output shaft connecting the oil distribution shaft and the gear box includes: controlling the fourth sling to apply the third directional force to the oil distributor, and controlling the second sling to apply the first directional force to the oil distributor; when the oil distribution shaft is attached to the end face of the output shaft of the gear box, stopping controlling the fourth sling to apply the acting force in the third direction, and reducing the acting force in the first direction applied by the second sling; and connecting the oil distribution shaft with an output shaft of the gear box by adopting a fastener.
In another implementation manner of the embodiment of the present disclosure, the controlling the sling to apply the acting force in the second direction to the oil distributor, and performing anti-loosening treatment on a fastener connecting the oil distribution shaft and an output shaft of the gearbox includes: controlling the third sling to apply the second directional force to the oil distributor, and controlling the second sling to apply the first directional force to the oil distributor; and performing anti-loosening treatment on the fastener.
In another implementation of the embodiment of the disclosure, the controlling the sling to apply the third directional acting force to the oil distributor, and the connecting the housing of the oil distribution shaft and the housing of the gear box includes: controlling the fourth sling to apply the third directional force to the oil distributor, and controlling the second sling to apply the first directional force to the oil distributor; and when the shell of the oil distributor is attached to the shell of the gear box, connecting the shell of the oil distributor and the shell of the gear box by adopting a locking piece.
In another implementation manner of the embodiment of the disclosure, one end of the second sling is connected to a servo oil cylinder of the oil distributor, one end of the third sling is connected to an auxiliary valve block mounting support of the oil distributor, one ends of the first sling and the fourth sling are connected to a shell of the oil distributor, the other ends of the first sling, the second sling and the third sling are connected to a hull rib plate, and the other end of the fourth sling is connected to a shell of the gear box.
In another implementation manner of the embodiment of the disclosure, there are two fourth slings, the two fourth slings are symmetrically arranged on two sides of the oil distributor, and in the axial direction of the oil distribution shaft, one end of each fourth sling is located between one end of the first sling and one end of the second sling.
In another implementation manner of the embodiment of the present disclosure, after the oil pipe connecting the spool rod and the gearbox, the method includes: and a plurality of guide screws penetrate through a connecting flange on the shell of the oil distributor and a connecting flange on the shell of the gear box, and the sling is stopped from applying the acting force in the first direction to the oil distributor.
The beneficial effects brought by the technical scheme provided by the embodiment of the disclosure at least comprise:
the method for assembling the oil distributor of the controllable pitch propeller comprises the steps of firstly connecting a plurality of suspension ropes to the oil distributor, wherein the suspension ropes can apply acting forces to the oil distributor in three directions, the first direction is a direction which is vertically upward along the radial direction of an oil distribution shaft of the oil distributor, the second direction is a direction which extends from a first end to a second end, and the third direction is a direction which extends from the second end to the first end. Thus, by controlling the slings, three forces in different directions can be applied to the oil distributor. And then, controlling the sling to apply an acting force in the first direction to the oil distributor, so that the oil distributor is lifted by the sling to move and adjust along the vertical direction, namely, the height of the oil distributor is adjusted, the height of the axis of the valve core rod of the oil distributor is consistent with the height of the axis of the oil pipe of the gear box, and the purpose of adjusting the concentricity of the valve core rod of the oil distributor and the oil pipe of the gear box is achieved. And after the concentricity of the valve core rod and the oil pipe meets the requirement, connecting the valve core rod and the oil pipe of the gear box together so as to accurately and coaxially connect the valve core rod of the oil distributor and the oil pipe of the gear box.
And then, the sling is controlled to apply acting force in a third direction to the oil distributor, so that the oil distributor is hung on the oil distribution shaft of the oil distributor through the sling, the oil distributor has the moving trend in the direction extending from the second end to the first end, the oil distribution shaft of the oil distributor is tightly attached to the output shaft of the gear box, and in the process of connecting the oil distribution shaft and the output shaft of the gear box, the oil distribution shaft and the output shaft of the gear box are not easy to slide relatively under the traction of the acting force in the third direction provided by the sling, so that the connection accuracy of the oil distribution shaft and the output shaft of the gear box is better, and the concentricity of the oil distribution shaft and the output shaft of the gear box is ensured.
Then, after the connection of the oil distribution shaft and the output shaft of the gear box is completed, the jumping degree of the first end of the oil distributor is checked, namely, the circular jumping of the oil distribution shaft can be checked to determine whether the concentricity of the connected oil distribution shaft meets the requirement or not. After the jumping degree is checked to be qualified, the sling is controlled to apply acting force in the second direction to the oil distributor, the shell of the oil distributor is hung by the sling to move towards the direction departing from the gear box, so that the shell of the oil distributor moves axially, sufficient operating space is provided for anti-loosening treatment of a fastener of an output shaft of the gear box connected with the oil distribution shaft, and the connection reliability is improved.
And finally, after the fastener is subjected to anti-loosening treatment, controlling the sling to apply acting force in a third direction to the oil distributor, and moving the shell of the oil distributor, which is hung by the sling, towards the direction close to the gear box so that the shell of the oil distributor moves axially, and the shell of the oil distributor is attached to the shell of the gear box so as to be convenient for connecting the shell of the oil distributor and the shell of the gear box.
The assembling method provided by the disclosure can be used for applying external forces in different directions to the oil distributor through the slings to adjust, so that the concentricity of the valve core rod in the oil distributor and the oil pipe of the gear box and the concentricity of the oil distribution shaft and the output shaft of the gear box are ensured, the anti-loosening treatment is performed on the fastener for connecting the oil distribution shaft and the output shaft of the gear box, and the connection reliability is improved while the connection concentricity is ensured. The assembling method is simple to operate, can quickly finish the assembling operation of the oil distributor, ensures that the jumping degree of the assembled oil distributor meets the requirement, and improves the assembling operation efficiency of the oil distributor.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a flowchart of an assembly method of an oil distributor of a controllable pitch propeller according to an embodiment of the present disclosure;
FIG. 2 is a flow chart of another method for assembling an oil distributor of a controllable pitch propeller according to an embodiment of the present disclosure;
fig. 3 is a schematic view illustrating an assembly state of an oil distributor and a gear box according to an embodiment of the disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
The controllable pitch propeller is a ship propulsion form widely applied at present, and more ships adopt the controllable pitch propeller as a propulsion device. The oil distributor is an important component of the controllable pitch propeller, and generally comprises a valve core rod, an oil distribution shaft and a shell, wherein the valve core rod is arranged in the oil distribution shaft, and the oil distribution shaft is arranged in the shell. When the oil distributor works, hydraulic oil is injected into the oil distribution shaft through an oil injection port on the oil distributor, the oil distribution shaft is provided with a shaft hole which is axially arranged, and the shaft hole is used for transmitting the hydraulic oil. Therefore, hydraulic oil can be conveyed into the pitch-variable oil cylinder of the pitch-adjustable propeller through the shaft hole to push the piston in the pitch-variable oil cylinder to move in a reciprocating manner so as to realize the pitch-variable of the pitch-adjustable propeller during forward driving or backward driving.
And a gear box is arranged between the variable pitch oil cylinder of the adjustable pitch propeller and the oil distributor, and the oil distributor needs to be connected with the gear box during assembly. The gearbox comprises an oil pipe, an output shaft and a shell, when the oil distributor is assembled with the gearbox, a valve core rod of the oil distributor is correspondingly connected with the oil pipe of the gearbox, an oil distribution shaft of the oil distributor is correspondingly connected with the output shaft of the gearbox, and the shell of the oil distributor is correspondingly connected with the shell of the gearbox. The oil distributor cabin has high equipment density and more connecting points between the oil distributor and the gear box, so the positioning and mounting precision requirements of the oil distributor are strict.
However, although the oil distributor can be installed in the related art, the oil distributor is often time-consuming, low in installation power and many in rework situations, resulting in low assembly work efficiency of the oil distributor.
In order to quickly finish the assembly operation of the oil distributor and improve the assembly operation efficiency of the oil distributor. The embodiment of the disclosure provides an assembling method of an oil distributor of a controllable pitch propeller. Fig. 1 is a flowchart of an assembly method of an oil distributor of a controllable pitch propeller according to an embodiment of the present disclosure. As shown in fig. 1, the assembly method includes:
step 101: a plurality of slings are connected to the oil distributor.
The oil distributor is provided with a first end connected with the gear box and a second end opposite to the first end. One end of each of the plurality of slings is connected with the oil distributor, the plurality of slings are used for applying acting forces in a first direction, a second direction and a third direction to the oil distributor, the first direction is a direction which is vertically upward along the radial direction of an oil distribution shaft of the oil distributor, the second direction is a direction which extends from the first end to the second end, and the third direction is a direction which extends from the second end to the first end.
Step 102: and the sling is controlled to apply acting force in the first direction to the oil distributor, and the concentricity of a valve core rod of the oil distributor and an oil pipe of the gear box is adjusted.
Step 103: and the oil pipe is connected with the valve core rod and the gear box.
Step 104: and the control sling applies acting force in a third direction to the oil distributor and is connected with the oil distribution shaft and the output shaft of the gear box.
Step 105: the degree of bounce of the first end of the oil distributor is checked.
Step 106: and if the jumping degree is detected to be qualified, controlling the sling to apply acting force in a second direction to the oil distributor, and performing anti-loosening treatment on a fastener which is connected with the oil distribution shaft and an output shaft of the gear box.
Step 107: and the control sling applies acting force in a third direction to the oil distributor and is connected with the shell of the oil distributor and the shell of the gear box.
The method for assembling the oil distributor of the controllable pitch propeller comprises the steps of firstly connecting a plurality of suspension ropes to the oil distributor, wherein the suspension ropes can apply acting forces to the oil distributor in three directions, the first direction is a direction which is vertically upward along the radial direction of an oil distribution shaft of the oil distributor, the second direction is a direction which extends from a first end to a second end, and the third direction is a direction which extends from the second end to the first end. Thus, by controlling the slings, three forces in different directions can be applied to the oil distributor. And then, controlling the sling to apply an acting force in the first direction to the oil distributor, so that the oil distributor is lifted by the sling to move and adjust along the vertical direction, namely, the height of the oil distributor is adjusted, the height of the axis of the valve core rod of the oil distributor is consistent with the height of the axis of the oil pipe of the gear box, and the purpose of adjusting the concentricity of the valve core rod of the oil distributor and the oil pipe of the gear box is achieved. And after the concentricity of the valve core rod and the oil pipe meets the requirement, connecting the valve core rod and the oil pipe of the gear box together so as to accurately and coaxially connect the valve core rod of the oil distributor and the oil pipe of the gear box.
And then, the sling is controlled to apply acting force in a third direction to the oil distributor, so that the oil distributor is hung on the oil distribution shaft of the oil distributor through the sling, the oil distributor has the moving trend in the direction extending from the second end to the first end, the oil distribution shaft of the oil distributor is tightly attached to the output shaft of the gear box, and in the process of connecting the oil distribution shaft and the output shaft of the gear box, the oil distribution shaft and the output shaft of the gear box are not easy to slide relatively under the traction of the acting force in the third direction provided by the sling, so that the connection accuracy of the oil distribution shaft and the output shaft of the gear box is better, and the concentricity of the oil distribution shaft and the output shaft of the gear box is ensured.
Then, after the connection of the oil distribution shaft and the output shaft of the gear box is completed, the jumping degree of the first end of the oil distributor is checked, namely, the circular jumping of the oil distribution shaft can be checked to determine whether the concentricity of the connected oil distribution shaft meets the requirement or not. After the jumping degree is checked to be qualified, the sling is controlled to apply acting force in the second direction to the oil distributor, the shell of the oil distributor is hung by the sling to move towards the direction departing from the gear box, so that the shell of the oil distributor moves axially, sufficient operating space is provided for anti-loosening treatment of a fastener of an output shaft of the gear box connected with the oil distribution shaft, and the connection reliability is improved.
And finally, after the fastener is subjected to anti-loosening treatment, controlling the sling to apply acting force in a third direction to the oil distributor, and moving the shell of the oil distributor, which is hung by the sling, towards the direction close to the gear box so that the shell of the oil distributor moves axially, and the shell of the oil distributor is attached to the shell of the gear box so as to be convenient for connecting the shell of the oil distributor and the shell of the gear box.
The assembling method provided by the disclosure can be used for applying external forces in different directions to the oil distributor through the slings to adjust, so that the concentricity of the valve core rod in the oil distributor and the oil pipe of the gear box and the concentricity of the oil distribution shaft and the output shaft of the gear box are ensured, the anti-loosening treatment is performed on the fastener for connecting the oil distribution shaft and the output shaft of the gear box, and the connection reliability is improved while the connection concentricity is ensured. The assembling method is simple to operate, can quickly finish the assembling operation of the oil distributor, ensures that the jumping degree of the assembled oil distributor meets the requirement, and improves the assembling operation efficiency of the oil distributor.
Fig. 2 is a flowchart of an assembly method of another adjustable pitch propeller oil distributor according to an embodiment of the present disclosure. As shown in fig. 2, the assembling method includes:
step 201: a plurality of slings are connected to the oil distributor.
Fig. 3 is a schematic view illustrating an assembly state of an oil distributor and a gear box according to an embodiment of the disclosure. As shown in fig. 3, the oil distributor 1 has a first end 11 connected to the gear box 2 and a second end 12 opposite the first end 11.
One end of each of the plurality of slings is connected with the oil distributor 1, the plurality of slings are used for applying acting force to the oil distributor 1 in a first direction, a second direction and a third direction, the first direction is a direction vertically upward along the radial direction of an oil distribution shaft of the oil distributor 1, the second direction is a direction extending from the first end 11 to the second end 12, and the third direction is a direction extending from the second end 12 to the first end 11.
As shown in fig. 3, the four slings may include: a first sling 31, a second sling 32, a third sling 33 and a fourth sling 34. One ends of a first sling 31 and a fourth sling 34 are connected to the shell of the oil distributor 1, one end of a second sling 32 is connected to the servo oil cylinder 13 of the oil distributor 1, one end of a third sling 33 is connected to the auxiliary valve block mounting support 14 of the oil distributor 1, the other ends of the first sling 31, the second sling 32 and the third sling 33 are connected to the hull rib plate 4, and the other end of the fourth sling 34 is connected to the shell of the gear box 2.
The first sling 31 and the second sling 32 are used for applying acting force in a first direction to the oil distributor 1, the force application direction of the first sling 31 passes through the gravity center of the oil distributor 1, and one end of the second sling 32 is connected with the second end 12. That is, the first slinger 31 mainly bears the weight of the oil distributor 1, and the oil distributor 1 can be maintained to move in the first direction in a natural equilibrium state by pulling the first slinger 31 to apply a force to the oil distributor 1. And the oil distributor 1 can be controlled to incline to a certain degree by the traction of the second sling 32, which is beneficial to adjusting the angle and enables the oil distributor 1 to be quickly connected with the gear box 2. Meanwhile, after the oil distributor 1 is attached to the gear box 2, acting force is applied to the oil distributor 1 through the second sling 32, and acting force towards the gear box 2 can be generated on the oil distributor 1, so that the oil distributor 1 and the gear box 2 are attached more tightly, and the assembly and connection quality is improved.
Referring to fig. 3, in the embodiment of the present disclosure, the first directional acting force provided by the first sling 31 and the second sling 32 is vertical and upward, and the oil distributor 1 is generally horizontally arranged when being assembled, so that the oil distributor 1 can be lifted by the first sling 31 and the second sling 32 connected to the hull rib plate 4 in a state of being horizontally arranged.
The third sling 33 is used for applying force to the oil distributor 1 in a second direction, and the fourth sling 34 is used for applying force to the oil distributor 1 in a third direction.
Referring to fig. 3, in the embodiment of the present disclosure, the force application direction of the third sling 33 is parallel to the axial direction of the oil distribution shaft of the oil distributor 1, that is, the second direction force provided by the third sling 33 is horizontal and rightward, so that the auxiliary valve block mounting support 14 of the oil distributor 1 can be pulled to move by the third sling 33 connected to the hull rib plate 4, and the oil distributor 1 is driven to move rightward together.
The force application direction of the fourth sling 34 and the force application direction of the first sling 31 form an included angle not larger than 90 degrees. I.e. the third direction of force provided by the fourth slings 34 is to the left, so that the oil distributor 1 can be pulled to the left by the fourth slings 34 attached to the ribs of the ship's hull.
For example, as shown in fig. 3, the force applying direction of the fourth sling 34 and the first sling 31 may have an angle of 50 ° to 60 °. I.e. so that the fourth slinger 34 may provide a force to the oil distributor 1 in the upper left direction as seen in fig. 3. Therefore, when the fourth sling 34 is controlled to apply force to enable the oil distributor 1 and the gear box 2 to be mutually attached, the fourth sling 34 can also provide upward component force to prevent the oil distributor 1 from sliding relative to the attachment part of the gear box 2 due to external factors such as gravity and the like, so that the oil distributor 1 and the gear box 2 are attached more tightly, and the quality of assembly connection is improved.
Optionally, there are two fourth slings 34, two of the fourth slings 34 are symmetrically arranged on both sides of the oil distributor 1, and one end of the fourth slings 34 is located between one end of the first sling 31 and one end of the second sling 32 in the axial direction of the oil distribution shaft.
Since the first end 11 of the oil distributor 1 is intended for a direct, abutting connection with the gear box 2, the arrangement of the fourth slings 34 at the first end 11 of the oil distributor 1 is liable to affect the connection with the gear box 2, whereas the arrangement at the side of the housing causes the direction of the force exerted by the fourth slings 34 to be inclined in a horizontal plane. Therefore, two symmetrically-arranged fourth suspension ropes 34 are arranged on two sides of the shell of the oil distributor 1, so that acting force is applied to the oil distributor 1 from two sides of the shell of the oil distributor 1, the problem that the direction of the acting force applied by the fourth suspension ropes 34 inclines on a horizontal plane is solved, and the assembly quality is improved.
In the above implementation manner, the first sling 31, the second sling 32, the third sling 33 and the fourth sling 34 may be a hoist crane with a weighing capacity of 1 ton, and the hoist crane is provided with slings for winding connection with the casing of the oil distributor 1, the servo cylinder 13 and the auxiliary valve block mounting support 14.
Step 202: the first sling 31 and the second sling 32 are controlled to apply a force to the oil distributor 1 in a first direction.
As further explained in step 202 with reference to the arrangement of the slings in fig. 3, the first slings 31 and the first slings 31 are controlled to simultaneously apply a vertically upward force to the oil distributor 1, and the force applied by the second slings 32 is not greater than that applied by the first slings 31, so as to prevent the oil distributor 1 from overturning during the hoisting process. In addition, no force is applied to the third slings 33 or the fourth slings 34 during the hoisting process. In this way, the axis of the valve core rod in the oil distributor 1 and the axis of the oil pipe of the gearbox 2 can be controlled to be at the same height through the traction of the first sling 31 and the second sling 32.
Step 203: the magnitude of the acting force applied by the second sling 32 is adjusted, and the concentricity of the valve core rod and the oil pipe of the gear box 2 is controlled to meet the set value.
As further described in the step 203 with reference to the arrangement of the slings in fig. 3, the first sling 31 is controlled to maintain a tensioned state, and the acting force exerted by the second sling 32 can be increased, so that the second end 12 of the oil distributor 1 is controlled to tilt upwards to adjust the tilt of the axis of the spool rod; or the acting force exerted by the second sling 32 can be properly increased to incline the valve core rod, and then the acting force exerted by the second sling 32 is reduced, so that the valve core rod is inclined downwards to adjust the inclination condition of the axis of the valve core rod. In addition, no force is applied to the third slings 33 or the fourth slings 34 during adjustment.
The embodiment of the disclosure controls the first sling 31 and the second sling 32 to apply a vertical upward acting force to the oil distributor 1, so that the oil distributor 1 is lifted by the slings to move and adjust along a vertical direction, that is, the height of the oil distributor 1 is adjusted, the height of the axis of the spool rod of the oil distributor 1 is made to be consistent with the height of the axis of the oil pipe of the gear box 2, meanwhile, the second sling 32 is used for finely adjusting the arrangement direction of the spool rod, and the concentricity of the spool rod and the oil pipe of the gear box 2 is controlled to meet a set value (for example, a tolerance allowed by the concentricity), so that the purpose of adjusting the concentricity of the spool rod of the oil distributor 1 and the oil pipe of the gear box 2 is achieved. So as to accurately connect the valve core rod of the oil distributor 1 and the oil pipe of the gear box 2 in a coaxial mode.
Step 204: and an oil pipe for connecting the valve core rod and the gear box 2.
After the concentricity is adjusted through the steps 202 to 203, after the concentricity of the valve core rod and the oil pipe meets the requirement, the step 204 can be executed to connect the valve core rod and the oil pipe of the gear box 2 together so as to accurately connect the valve core rod of the oil distributor 1 and the oil pipe of the gear box 2 coaxially.
In the embodiment of the present disclosure, after step 204 is executed, the plurality of lead screws 5 may be further used to penetrate the connecting flange on the housing of the oil distributor 1 and the connecting flange on the housing of the gear box 2, and the control sling stops applying the force in the first direction to the oil distributor 1.
As described in the above steps with reference to the arrangement of the slings in fig. 3, after the lead screws 5 pass through the connecting flange on the housing of the oil distributor 1 and the connecting flange on the housing of the gear box 2, the weight of the oil distributor 1 can be borne by the plurality of lead screws 5, so that the first slings 31 and the second slings 32 are not required to apply force to the oil distributor 1, and the first slings 31 and the second slings 32 are prevented from being operated by mistake and affecting the concentricity of the oil distributor 1 and the gear box 2. Meanwhile, the plurality of guide screws 5 can be used for adjusting and guiding the subsequent movement of the oil distributor 1, so that the concentricity of the oil distributor 1 cannot be easily changed in the adjusting process.
Step 205: the fourth slinger 34 is controlled to apply a third directional force to the oil distributor 1 and the second slinger 32 is controlled to apply a first directional force to the oil distributor 1.
In conjunction with fig. 3, step 205 may include: the first slings 31 are controlled to apply no force, the second slings 32 are controlled to apply a vertically upward force, the third slings 33 are controlled to apply no force, and the fourth slings 34 are controlled to apply a force to the oil distributor 1 in the upper left direction as shown in fig. 3.
The fourth slinger 34 applies a force in the left-upper direction to urge the oil distributor 1 to have a tendency to move in a direction extending from the second end 12 to the first end 11, so that the oil distribution shaft of the oil distributor 1 and the output shaft of the gear box 2 are closely attached to each other. Meanwhile, the fourth sling 34 can also provide an upward component force, so that the oil distributor 1 is prevented from sliding relative to the joint part of the gear box 2 due to external factors such as gravity, the oil distributor 1 and the gear box 2 are jointed more tightly, and the quality of assembly connection is improved.
In addition, after the oil distributor 1 is attached to the gear box 2, acting force is applied to the oil distributor 1 through the second sling 32, and acting force towards the gear box 2 can be generated on the oil distributor 1, so that the oil distributor 1 and the gear box 2 are attached more tightly, and the assembly and connection quality is improved.
Step 206: the shaft to be oil-distributed is attached to the end face of the output shaft of the gear box 2, the fourth sling 34 is stopped to be controlled to apply the acting force in the third direction, and the acting force in the first direction applied by the second sling 32 is reduced.
Referring to fig. 3, after the oil distribution shaft is attached to the end face of the output shaft of the gear box 2, no force for moving the oil distribution shaft to the left is required. By reducing the vertical upward acting force applied by the second sling 32, the second sling 32 generates an acting force towards the gear box 2 to the oil distributor 1, so that the oil distributor 1 and the gear box 2 are kept in a close fit state.
Step 207: the oil distribution shaft is connected with the output shaft of the gear box 2 by a fastener.
For example, flanges may be disposed on the oil distribution shaft and the output shaft of the gear box 2, and the oil distribution shaft and the flange on the output shaft of the gear box 2 may be connected together by fasteners such as bolts and nuts, so as to connect the oil distribution shaft and the output shaft of the gear box 2.
For example, the end face of the output shaft of the gear box 2 may be provided with a mounting groove, one end of the oil distribution shaft is inserted into the mounting groove, and a screw is screwed into the mounting groove from the outer wall of the output shaft of the gear box 2 in the radial direction to connect the oil distribution shaft and the output shaft of the gear box 2 together.
Step 208: the degree of bounce of the first end 11 of the oil distributor 1 is checked.
The jitter level checking in step 208 uses an associated jitter level checking tool, such as a jitter level detector.
Step 209: and if the jumping degree is detected to be qualified, controlling the third sling 33 to apply acting force in the second direction to the oil distributor 1, controlling the second sling 32 to apply acting force in the first direction to the oil distributor 1, and performing anti-loosening treatment on the fastener.
Referring to fig. 3, the third sling 33 is controlled to apply a rightward force to the oil distributor 1, and the casing of the oil distributor 1 and the casing of the gear box 2 are separated from each other by dragging the casing of the oil distributor 1, so that sufficient operating space is provided for the fastening of the output shaft of the gear box 2 connected to the oil distribution shaft to perform anti-loose treatment, thereby improving the connection reliability.
Wherein, the anti-loosening process can be a spot welding process on the fastener. For example, spot welding is performed on a screw connecting the oil distribution shaft and the output shaft of the gear case 2 to fix the screw to the oil distribution shaft, preventing the screw from being easily loosened.
Step 210: the fourth slinger 34 is controlled to apply a third directional force to the oil distributor 1 and the second slinger 32 is controlled to apply a first directional force to the oil distributor 1.
Referring to fig. 3, after the fastener is subjected to anti-loosening treatment, the fourth sling 34 is controlled to apply an upward-left acting force to the oil distributor 1 so as to pull the shell of the oil distributor 1 to move towards the shell of the gear box 2, so that the shell of the oil distributor 1 is attached to the shell of the gear box 2. Meanwhile, the second sling 32 is used for applying vertical upward acting force to promote the oil distributor 1 and the gear box 2 to be in a tightly fit state to be connected.
Step 211: the shell of the oil distributor 1 to be distributed is attached to the shell of the gear box 2, and the shell of the oil distributor 1 and the shell of the gear box 2 are connected through a locking piece.
The locking piece can be a nut, as can be known from the foregoing, a lead screw is mounted on the connecting flange of the housing of the oil distributor 1 and the connecting flange of the housing of the gear box 2, and after the housing of the oil distributor 1 is attached to the housing of the gear box 2, the connecting flange of the housing of the oil distributor 1 and the connecting flange of the housing of the gear box 2 can be locked together by the nut, so that the purpose of connecting the housing of the oil distributor 1 and the housing of the gear box 2 is achieved.
The assembling method provided by the disclosure can be used for applying external forces in different directions to the oil distributor through the slings to adjust, so that the concentricity of the valve core rod in the oil distributor and the oil pipe of the gear box and the concentricity of the oil distribution shaft and the output shaft of the gear box are ensured, the anti-loosening treatment is performed on the fastener for connecting the oil distribution shaft and the output shaft of the gear box, and the connection reliability is improved while the connection concentricity is ensured. The assembling method is simple to operate, can quickly finish the assembling operation of the oil distributor, ensures that the jumping degree of the assembled oil distributor meets the requirement, and improves the assembling operation efficiency of the oil distributor.
Although the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the disclosure.
Claims (10)
1. A method for assembling an oil distributor of a controllable pitch propeller, the oil distributor is provided with a first end connected with a gear box and a second end opposite to the first end, a plurality of slings are connected to the oil distributor, and one ends of the slings are connected with the oil distributor, the method for assembling the oil distributor is characterized by comprising the following steps:
the slings are used for applying acting force to the oil distributor in a first direction, a second direction and a third direction, wherein the first direction is a direction which is vertically upward along the radial direction of an oil distribution shaft of the oil distributor, the second direction is a direction which extends from the first end to the second end, and the third direction is a direction which extends from the second end to the first end;
controlling the sling to apply the acting force in the first direction to the oil distributor, and adjusting the concentricity of a valve core rod of the oil distributor and an oil pipe of the gear box;
an oil pipe connecting the valve core rod and the gear box;
controlling the sling to apply acting force in the third direction to the oil distributor, and connecting the oil distribution shaft with an output shaft of the gearbox;
checking the jumping degree of the first end of the oil distributor;
if the jumping degree is detected to be qualified, controlling the sling to apply acting force in the second direction to the oil distributor, and performing anti-loosening treatment on a fastener which is connected with the oil distribution shaft and an output shaft of the gear box;
and controlling the sling to apply the acting force in the third direction to the oil distributor, and connecting the shell of the oil distributor and the shell of the gear box.
2. The method of assembling of claim 1, wherein the four slings comprise a first sling, a second sling, a third sling, and a fourth sling, wherein the first sling and the second sling are configured to apply the force in the first direction to the oil distributor, wherein the force applied by the first sling is directed through a center of gravity of the oil distributor, wherein one end of the second sling is connected to the second end, wherein the third sling is configured to apply the force in the second direction to the oil distributor, and wherein the fourth sling is configured to apply the force in the third direction to the oil distributor.
3. The assembly method of claim 2, wherein the force application direction of the third sling is parallel to the axial direction of the oil distribution shaft of the oil distributor, and the force application direction of the fourth sling has an angle of not more than 90 ° with the force application direction of the first sling.
4. The method of assembling of claim 2, wherein said controlling said slinger to apply said first direction of force to said oil distributor, and adjusting concentricity of a spool rod of said oil distributor and an oil tube of a gearbox comprises:
controlling the first sling and the second sling to apply acting force in the first direction to the oil distributor, so that the axis of the valve element rod and the axis of an oil pipe of the gearbox are at the same height;
and adjusting the acting force applied by the second sling, and controlling the concentricity of the valve core rod and the oil pipe of the gear box to meet a set value.
5. The method of assembling of claim 2, wherein said controlling said slinger to apply said third directional force to said oil distributor, and wherein connecting said oil distribution shaft to an output shaft of said gearbox comprises:
controlling the fourth sling to apply the third directional force to the oil distributor, and controlling the second sling to apply the first directional force to the oil distributor;
when the oil distribution shaft is attached to the end face of the output shaft of the gear box, stopping controlling the fourth sling to apply the acting force in the third direction, and reducing the acting force in the first direction applied by the second sling;
and connecting the oil distribution shaft with an output shaft of the gear box by adopting a fastener.
6. The assembly method of claim 2, wherein controlling the slinger to apply the second directional force to the oil distributor comprises:
controlling the third sling to apply the second directional force to the oil distributor, and controlling the second sling to apply the first directional force to the oil distributor;
and performing anti-loosening treatment on the fastener.
7. The method of assembling of claim 2, wherein said controlling said slinger to apply said third directional force to said oil distributor, and wherein connecting said housing of said oil distribution shaft to said housing of said gearbox comprises:
controlling the fourth sling to apply the third directional force to the oil distributor, and controlling the second sling to apply the first directional force to the oil distributor;
and when the shell of the oil distributor is attached to the shell of the gear box, connecting the shell of the oil distributor and the shell of the gear box by adopting a locking piece.
8. The assembling method according to claim 2, wherein one end of the second sling is connected to a servo oil cylinder of the oil distributor, one end of the third sling is connected to an auxiliary valve block mounting support of the oil distributor, one ends of the first sling and the fourth sling are connected to a shell of the oil distributor, the other ends of the first sling, the second sling and the third sling are connected to a hull rib plate, and the other end of the fourth sling is connected to a shell of the gearbox.
9. The method of assembling of claim 8, wherein there are two of said fourth slings, two of said fourth slings being symmetrically disposed on either side of said oil distributor,
one end of the fourth sling is positioned between one end of the first sling and one end of the second sling in the axial direction of the oil distribution shaft.
10. An assembly method according to any one of claims 1 to 9, wherein, after connecting the spool rod and the oil pipe of the gearbox, it comprises:
and a plurality of guide screws penetrate through a connecting flange on the shell of the oil distributor and a connecting flange on the shell of the gear box, and the sling is stopped from applying the acting force in the first direction to the oil distributor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010526149.9A CN111824360B (en) | 2020-06-09 | 2020-06-09 | Assembly method of oil distributor of controllable pitch propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010526149.9A CN111824360B (en) | 2020-06-09 | 2020-06-09 | Assembly method of oil distributor of controllable pitch propeller |
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| Publication Number | Publication Date |
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| CN111824360A CN111824360A (en) | 2020-10-27 |
| CN111824360B true CN111824360B (en) | 2021-11-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| NO339669B1 (en) * | 2012-10-18 | 2017-01-23 | Scana Volda As | Vessel propulsion system |
| CN108608206B (en) * | 2018-05-31 | 2019-10-22 | 武汉船用机械有限责任公司 | A kind of assembly method of tuning for Controllable Pitch Propeller |
| CN108674578B (en) * | 2018-06-05 | 2019-10-18 | 浙江国际海运职业技术学院 | Shafting lifting and propeller mounting process |
| CN109229274B (en) * | 2018-09-07 | 2019-08-13 | 广州中船文冲船坞有限公司 | A kind of maintenance method for dismounting of co-axial contra rotating propeller |
| CN110789686B (en) * | 2019-11-29 | 2020-09-11 | 江南造船(集团)有限责任公司 | Ship shafting installation method |
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