A semi-suspension rudder blade dismounting interference detection device and method

Abstract

The application discloses a semi-suspension rudder blade dismounting interference detection device and method, which comprises a positioning plate, a measuring plate, an extension rod and a pulley assembly. The position of the positioning plate is adjusted through the extension rod, the positioning plate is used for clamping a measured piece, and the measuring plate is driven by a traction rope to move in the interference area of the rudder pin bearing seat and the rudder blade dismounting, so that the assembly process of the rudder pin bearing seat and the rudder blade dismounting is completely simulated. The interference condition of the rudder blade can be efficiently and accurately checked, the detection work of the on-site personnel is greatly simplified, a series of problems of installation interference and rectification of the rudder blade after the rudder blade is delivered to a shipyard are avoided in advance, the device has a simple structure and is convenient to operate, and the product quality control and the product qualification rate are effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of marine technology, specifically relating to a device and method for detecting interference during the disassembly and assembly of a semi-suspended rudder blade. Background Technology

[0002] The rudder is the main body on the hull that generates rudder force. It is generally composed of parts such as the rudder plate and rudder stock, and is an important device to ensure the maneuverability, turning ability and course stability of the ship. Depending on the different functional requirements of the ship, there are many types of rudders, among which the semi-suspended rudder is one. The upper part of the semi-suspended rudder is supported on the rudder pin at the rudder post or rudder arm, and the lower part is suspended.

[0003] During the assembly of semi-suspended rudder blades, interference checks are involved. The interference check location for semi-suspended rudder blades is in the upper area of ​​the rudder pin bearing. Generally, the dimensions are roughly measured on-site or the interference area is cut during on-site assembly. Alternatively, a template is used to check the dimensions before the rudder pin bearing is cast. For the above-mentioned rough on-site measurement or cutting of the interference area during on-site assembly, the existing interference inspection devices are too simple to operate. While they are convenient for on-site personnel to check the rudder blade dimensions, they cannot detect the rudder blade matching interference in detail for irregular dimensions in the interference area. At the same time, while the prevention of interference problems by making templates to control the dimensions before the rudder pin bearing is cast can effectively avoid interference problems in the early stage, welding deformation during the rudder blade welding process can also affect the rudder blade assembly space. This can lead to collisions between the rudder blade and the rudder arm during assembly. In the subsequent rectification of the cutting of the interference part of the rudder blade casting, the work of casting quality repair and flaw detection is increased, which affects the final delivery time. Summary of the Invention

[0004] To address the aforementioned problems, the main objective of this invention is to design a device and method for detecting interference during the assembly and disassembly of semi-suspended rudder blades, thereby solving the problem of interference inspection during the assembly process of semi-suspended rudder blades.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A semi-suspended rudder blade disassembly and assembly interference detection device is used to detect the interference during the disassembly and assembly matching process of the rudder pin bearing and the rudder blade. The device includes a positioning device and a measuring plate slidably disposed on the positioning device.

[0007] The positioning device is fixed at the mating point of the rudder blade or the rudder pin bearing. The mating point includes the center punch positioning points at the upper and lower ends of the rudder blade and the center punch positioning points at the upper and lower ends of the rudder pin bearing.

[0008] The measuring plate moves along the area between the positioning points of the punch holes at the upper and lower ends of the rudder blade, or along the interference area on the upper part of the rudder pin bearing, and the outer side of the measuring plate corresponds to the outer side of the rudder arm.

[0009] The outer side of the rudder arm is the matching interference area during the disassembly and assembly of the rudder pin bearing and rudder blade.

[0010] As a further description of the present invention, the positioning device includes a positioning plate and a telescopic mechanism;

[0011] Two positioning plates are provided, and one end of each positioning plate is vertically positioned at both ends of the telescopic mechanism, in a clamping state; the measuring plate is positioned between the two positioning plates and moves along the telescopic mechanism.

[0012] As a further description of the present invention, the telescopic mechanism is configured as a telescopic rod, and the telescopic rod includes locking bolts for positioning the telescopic rod.

[0013] As a further description of the present invention, the measuring plate is connected to the telescopic rod via a bracket. One end of the bracket is fixedly connected to the measuring plate, and the other end includes a sleeve that cooperates with the telescopic rod. The sleeve is fitted over the outside of the telescopic rod and slides along the outside of the telescopic rod.

[0014] As a further description of the present invention, the end of the positioning plate away from the telescopic rod is provided with a traction mechanism for driving the measuring plate to move. The traction mechanisms are connected by a traction rope, and the traction rope passes through the central hole of the measuring plate and drives the measuring plate to move.

[0015] As a further description of the present invention, the traction mechanism is configured as a fixed pulley assembly, which includes a groove, a pulley, and a positioning bolt for fixing the position of the pulley. The pulley is sleeved in the groove and slides within the groove. The two ends of the traction rope are respectively wrapped around the outside of the pulley, and the end of the traction rope extends out of the groove.

[0016] As a further description of the present invention, the side of the slide facing the positioning plate is fixed by a fixing bolt, and the fixing bolt is fixed at the center of the positioning plate.

[0017] As a further description of the present invention, the measuring plate is configured to be circular.

[0018] A method for detecting interference during the assembly and disassembly of a semi-suspended rudder blade is disclosed. This method is based on the aforementioned interference detection device for the assembly and disassembly of a semi-suspended rudder blade. The specific implementation steps of this method are as follows:

[0019] Step 1: Adjust the length of the telescopic rod according to the distance between the positioning points of the punches at the upper and lower ends of the rudder blade, or the distance between the positioning points of the punches at the upper and lower ends of the rudder pin bearing.

[0020] Step 2: Fix the positioning plate at the positioning points of the punch holes at the upper and lower ends of the rudder blade, or fix it at the positioning points of the punch holes at the upper and lower ends of the rudder pin bearing.

[0021] Step 3: Use a laser level to calibrate the center position of the positioning plate;

[0022] Step 4: Adjust the position of the pulley in the groove so that the traction line passes through the center of the rudder blade cone hole or the center between the upper and lower ends of the rudder pin bearing cone hole.

[0023] Step 5: Pull one end of the traction rope to make the measuring plate slide back and forth on the outside of the telescopic rod, so as to detect the interference area of ​​the measuring plate during the disassembly and assembly of the rudder pin bearing and rudder blade.

[0024] As a further description of the present invention, in step 5, if there is a part that obstructs the sliding of the measuring plate, it indicates that there is interference in the disassembly and assembly process of the rudder pin bearing and the rudder blade, and certain treatment needs to be done on the interfering part to ensure smooth disassembly and assembly of the rudder pin bearing and the rudder blade. If there is no part that obstructs the sliding of the measuring plate, it indicates that there is no interference in the disassembly and assembly process of the rudder pin bearing and the rudder blade.

[0025] Compared with the prior art, the technical advantages of the present invention are as follows:

[0026] This invention provides a device and method for detecting interference during the disassembly and assembly of a semi-suspended rudder blade. A positioning plate clamps the part to be measured, and a traction rope moves the measuring plate within the interference area between the rudder pin bearing and the rudder blade during disassembly and assembly. This completely simulates the process of disassembly and assembly of the rudder pin bearing and the rudder blade, allowing for efficient and accurate inspection of rudder blade interference. This greatly simplifies the on-site inspection work and avoids a series of problems related to interference and rectification after the rudder blade arrives at the shipyard. Furthermore, the device has a simple structure and is easy to operate, effectively improving product quality control and the product qualification rate. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the pulley assembly and positioning plate structure in this invention;

[0029] Figure 3 This is a schematic diagram of the fixed pulley assembly structure in this invention;

[0030] Figure 4 This is a schematic diagram of the pulley and slider structure in this invention;

[0031] Figure 5 This is a schematic diagram of the interference detection method of the present invention.

[0032] In the diagram, 1. Measuring plate, 2. Positioning plate, 21. Fixing bolt, 3. Telescopic rod, 31. Locking bolt, 4. Bracket, 41. Sleeve, 5. Traction rope, 6. Slide groove, 7. Pulley, 71. Positioning bolt, 8. Slider, 81. Slot. Implementation

[0033] The present invention will now be described in detail with reference to the accompanying drawings:

[0034] In one embodiment of the present invention, a semi-suspended rudder blade disassembly and assembly interference detection device is disclosed, with reference to... Figure 1-4 As shown, the device is used to detect interference during the assembly and disassembly process of the rudder pin bearing and the rudder blade. Specifically, the interference detection device includes a positioning device and a measuring plate 1 slidably mounted on the positioning device. In this embodiment, the measuring plate 1 moves along the area between the positioning points of the upper and lower end punches of the rudder blade, or along the interference area on the upper part of the rudder pin bearing. The outer side of the measuring plate 1 corresponds to the outer side of the rudder arm. The outer side of the rudder arm is the interference area during the assembly and disassembly process of the rudder pin bearing and the rudder blade.

[0035] It should be noted that the measuring plate 1 in this embodiment is usually set to be circular, and the template is generally made based on the maximum outer dimension of the rudder arm. The planar dimensions of the measuring plate 1 can be appropriately enlarged according to design requirements.

[0036] Specifically, this embodiment provides a detailed analysis of the positioning device, measuring plate 1, and the cooperation method between the positioning device and measuring plate 1, as follows:

[0037] The positioning device includes a positioning plate 2 and a telescopic mechanism.

[0038] In this embodiment, two positioning plates 2 are provided, and one end of each positioning plate 2 is vertically set at both ends of the telescopic mechanism and is in a clamping state; thereby, the positioning plate 2 is fixed at the mating point of the rudder blade or rudder pin bearing to realize the clamping or positioning of the rudder blade or rudder pin bearing.

[0039] In this embodiment, the aforementioned mating points include the punching points at both ends of the rudder blade and the punching points at both ends of the rudder pin bearing.

[0040] It should also be noted that the telescopic mechanism in this embodiment is a telescopic rod 3, and the telescopic rod 3 includes a locking bolt 31. The locking bolt 31 facilitates the positioning of the telescopic rod 3 in the required position. In addition, this embodiment includes, but is not limited to, the method of positioning the telescopic rod 3 by locking bolt 31, and also includes other mechanisms or devices for positioning and locking the telescopic rod 3.

[0041] The measuring plate 1 is usually set between the positioning plates 2 according to the placement of the rudder pin bearing and the rudder blade.

[0042] In this embodiment, the measuring plate 1 is set parallel to the positioning plate 2 via the bracket 4, and the measuring plate 1 is located between the two positioning plates 2. In addition, the bracket 4 cooperates with the telescopic rod 3. Specifically, one end of the bracket 4 is fixedly connected to the measuring plate 1, and the other end of the bracket 4 is provided with a sleeve 41. The sleeve 41 is sleeved on the outside of the telescopic rod 3, and the inner diameter of the sleeve 41 is larger than the outer diameter of the telescopic rod 3, so that the sleeve 41 can slide along the outside of the telescopic rod 3.

[0043] In addition, in this embodiment, the movement of the measuring plate 1 outside the telescopic rod 3 also includes the following specific structural configuration: a traction mechanism for driving the measuring plate 1 to move is provided at the end of the positioning plate 2 away from the telescopic rod 3. The traction mechanism includes various mechanisms or devices that can move the measuring plate 1 along the telescopic rod 3. In this embodiment, two sets of traction mechanisms are provided, respectively located at the end of the positioning plate 2 away from the telescopic rod 3, and the traction mechanisms are connected by a traction rope 5. In this embodiment, the traction rope 5 passes through the central hole of the measuring plate 1, and the movement of the traction rope 5 drives the measuring plate 1 to move.

[0044] Specifically, the traction mechanism is set as a fixed pulley assembly, such as... Figure 3-4 As shown, the fixed pulley assembly includes a groove 6, a pulley 7, and a positioning bolt 71 for fixing the pulley 7. The pulley 7 is rotatably mounted on a slider 8. The slider 8 has a slot 81 on the side facing the back of the pulley 7. The outer side plate of the groove 6 is engaged inside the slot 81, allowing the slider 8 to slide on the groove 6. The sliding of the pulley 7 along the groove 6 is achieved through the cooperation between the groove 6 and the slot 81. Furthermore, the positioning bolt 71 is perpendicular to the slot 81. Rotation of the positioning bolt 71 causes the fixed pulley 7 to move. The end of the positioning bolt 71 engages with the outer wall of the outer side plate of the slide groove 6. When the positioning bolt 71 is pressed against the outer side wall of the slide groove 6, the slider 8 is locked in any position of the slide groove 6, satisfying the positioning of the pulley 7. When the positioning bolt 71 is released from the outer side wall of the slide groove 6, the slider 8 is released, satisfying the movement of the pulley 7 along the slide groove 6. The two ends of the traction rope 5 are respectively wrapped around the outside of the pulley 7, and the end of the traction rope 5 extends out of the slide groove 6. By pulling the traction rope 5 on the different pulleys 7 of the two sets of traction mechanisms, the measuring plate 1 moves outside the telescopic rod 3.

[0045] It should also be noted that the aforementioned slide 6 further includes a back plate. The back plate has a fixing bolt 21 on the side facing the positioning plate 2. The fixing bolt 21 passes through the positioning plate 2, and a nut is fitted at the end of the fixing bolt 21 located outside the positioning plate 2. This allows the slide 6 to be fixed by the fixing bolt 21 and the nut, thereby fixing the pulley assembly to the positioning plate 2, and fixing the fixing bolt 21 at the center of the positioning plate 2. In this embodiment, the cooperation between the slide 6 and the positioning plate 2 includes, but is not limited to, the cooperation between the fixing bolt 21 and the nut, but also includes any other mechanism or device that can cooperate between the slide 6 and the positioning plate 2.

[0046] The working principle of this invention is as follows: During operation, the semi-suspended rudder blade disassembly and assembly interference detection device adjusts the length of the telescopic rod 3 to fix the positioning plate 2 at the punched eye positioning points at the upper and lower ends of the rudder blade, or at the punched eye positioning points at the upper and lower ends of the rudder pin bearing. A laser level is used to correct the center position of the positioning plate 2. The position of the pulley 7 on the positioning plate 2 within the groove 6 is adjusted by the cooperation of the slider 8, the slot 81, and the positioning bolt 71. The traction line 5 on the pulley 7 passes through the center position of the rudder blade cone hole or the center position between the upper and lower ends of the rudder pin bearing cone hole. The pulley 7 is fixed by the positioning bolt 71, thereby pulling the end of the traction rope 5. The pulling of different ends of the traction rope 5 causes the measuring plate 1 to slide in different directions outside the telescopic rod 3, thus realizing the detection of the matching interference area of ​​the measuring plate 1 during the disassembly and assembly of the rudder pin bearing and rudder blade.

[0047] In the specific implementation of the device in this embodiment, if there is a part that obstructs the sliding of the measuring plate 1, it indicates that there is interference in the disassembly and assembly process of the rudder pin bearing and the rudder blade. It is necessary to make certain treatments on the part that obstructs the sliding of the measuring plate 1 to ensure that the disassembly and assembly of the rudder pin bearing and the rudder blade are smooth. If there is no part that obstructs the sliding of the measuring plate 1, it indicates that there is no interference in the disassembly and assembly process of the rudder pin bearing and the rudder blade.

[0048] In another embodiment of the present invention, a method for detecting interference during the disassembly and assembly of a semi-suspended rudder blade is disclosed, such as... Figure 5 As shown, this method is based on the semi-suspended rudder blade disassembly and assembly interference detection device of the above embodiment. The specific implementation steps of the semi-suspended rudder blade disassembly and assembly interference detection method are as follows:

[0049] Step 1: Adjust the length of the telescopic rod according to the distance between the positioning points of the punches at the upper and lower ends of the rudder blade, or the distance between the positioning points of the punches at the upper and lower ends of the rudder pin bearing.

[0050] Step 2: Fix the positioning plate at the positioning points of the punch holes at the upper and lower ends of the rudder blade, or fix it at the positioning points of the punch holes at the upper and lower ends of the rudder pin bearing.

[0051] Step 3: Use a laser level to calibrate the center position of the positioning plate;

[0052] Step 4: Adjust the position of the pulley in the groove so that the traction line passes through the center of the rudder blade cone hole or the center between the upper and lower ends of the rudder pin bearing cone hole.

[0053] Step 5: Pull one end of the traction rope to make the measuring plate slide back and forth on the outside of the telescopic rod, so as to detect the interference area of ​​the measuring plate during the disassembly and assembly of the rudder pin bearing and rudder blade.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered within the scope of the claims of the present invention.

Claims

1. A semi-suspended rudder blade disassembly and assembly interference detection device, used to detect interference during the disassembly and assembly matching process of the rudder pin bearing and the rudder blade, characterized in that: The device includes a positioning device and a measuring plate that is slidably mounted on the positioning device; The positioning device is fixed at the mating point of the rudder blade or the rudder pin bearing. The mating point includes the center punch positioning points at the upper and lower ends of the rudder blade and the center punch positioning points at the upper and lower ends of the rudder pin bearing. The measuring plate moves along the area between the positioning points of the punch holes at the upper and lower ends of the rudder blade, or along the interference area on the upper part of the rudder pin bearing, and the outer side of the measuring plate corresponds to the outer side of the rudder arm. The outer side of the rudder arm is the matching interference area during the disassembly and assembly of the rudder pin bearing and rudder blade. The positioning device includes a positioning plate and a telescopic mechanism; Two positioning plates are provided, and one end of each positioning plate is vertically set at both ends of the telescopic mechanism and is in a clamping state; the measuring plate is set between the two positioning plates and moves along the telescopic mechanism; the telescopic mechanism is a telescopic rod, and the telescopic rod includes locking bolts for positioning the telescopic rod. The positioning plate is provided with a traction mechanism at the end away from the telescopic rod for driving the measuring plate to move. The traction mechanisms are connected by a traction rope, which passes through the center hole of the measuring plate and drives the measuring plate to move. The traction mechanism is configured as a fixed pulley assembly, which includes a groove, a pulley, and a positioning bolt for fixing the position of the pulley. The pulley is fitted inside the groove and slides inside the groove. The two ends of the traction rope are respectively wrapped around the outside of the pulley, and the end of the traction rope extends out of the groove.

2. The semi-suspended rudder blade disassembly and assembly interference detection device according to claim 1, characterized in that: The measuring plate is connected to the telescopic rod via a bracket. One end of the bracket is fixedly connected to the measuring plate, and the other end includes a sleeve that cooperates with the telescopic rod. The sleeve is fitted over the outside of the telescopic rod and slides along the telescopic rod.

3. The semi-suspended rudder blade disassembly and assembly interference detection device according to claim 1, characterized in that: The side of the slide facing the positioning plate is fixed by a fixing bolt, and the fixing bolt is fixed at the center of the positioning plate.

4. The semi-suspended rudder blade disassembly and assembly interference detection device according to any one of claims 1-3, characterized in that: The measuring plate is circular.

5. A method for detecting interference during the disassembly and assembly of a semi-suspended rudder blade, characterized in that: The method is implemented based on the semi-suspended rudder blade disassembly and assembly interference detection device according to any one of claims 1-4. The specific implementation steps of the method are as follows: Step 1: Adjust the length of the telescopic rod according to the distance between the positioning points of the punches at the upper and lower ends of the rudder blade, or the distance between the positioning points of the punches at the upper and lower ends of the rudder pin bearing. Step 2: Fix the positioning plate at the positioning points of the punch holes at the upper and lower ends of the rudder blade, or fix it at the positioning points of the punch holes at the upper and lower ends of the rudder pin bearing. Step 3: Use a laser level to calibrate the center position of the positioning plate; Step 4: Adjust the position of the pulley in the groove so that the traction rope passes through the center of the rudder blade cone hole or the center between the upper and lower ends of the rudder pin bearing cone hole. Step 5: Pull one end of the traction rope to make the measuring plate slide back and forth on the outside of the telescopic rod, so as to detect the interference area of ​​the measuring plate during the disassembly and assembly of the rudder pin bearing and rudder blade.

6. The method for detecting interference during the disassembly and assembly of a semi-suspended rudder blade according to claim 5, characterized in that: In step 5, if there is a part that obstructs the sliding of the measuring plate, it indicates that there is interference in the disassembly and assembly process of the rudder pin bearing and the rudder blade; if there is no part that obstructs the sliding of the measuring plate, it indicates that there is no interference in the disassembly and assembly process of the rudder pin bearing and the rudder blade.

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