Ship propeller blade detection device

Abstract

The utility model discloses a ship propeller blade detection device, which relates to the technical field of propeller blade detection devices and comprises a detection platform, an installation support column is installed at the upper end of the detection platform, a positioning pin is in threaded connection with the upper end of the installation support column, and a propeller is movably sleeved on the outer side of the positioning pin. The upper end of the detection platform is provided with a moving guide rail, the moving guide rail is internally provided with a reciprocating screw rod, the outer side of the reciprocating screw rod is in threaded connection with a clamping guide rail, the clamping guide rail is internally provided with a positive and negative thread screw rod, the positive and negative thread screw rod is in threaded connection with a first moving block and a second moving block, and one end of the first moving block is welded with a first connecting rod. A first connecting rod is welded to one end of the first moving block, a lower die is installed at one end of the first connecting rod, a second connecting rod is welded to one end of the second moving block, a third connecting rod is hinged to one end of the second connecting rod through a hinge plate, an upper die is installed at one end of the third connecting rod, an upper die groove is formed in the lower end of the upper die, and a lower die groove is formed in the upper end of the lower die.

Description

Technical Field

[0001] The utility model relates to the technical field of propeller blade detection devices, in particular to a ship propeller blade detection device. Background Art

[0002] Ship propeller blades are an important part of the ship propulsion system, used to convert power into propulsion to drive the ship forward. Ship propeller blades need to be accurately measured after processing to ensure that they meet the design requirements and have good performance. Common dimensions that need to be measured include the length, width, thickness, curvature, twisting and symmetry of the blades. Among them, the curvature, twisting and symmetry of the blades have a direct impact on the performance of the blades and the propulsion efficiency of the ship. They are very important dimensional characteristics, and special attention needs to be paid to the measurement and control of these dimensional characteristics. The existing propeller blade detection device is not convenient for measuring the curvature, twisting and symmetry of the blades, resulting in low measurement accuracy. Therefore, those skilled in the art provide a ship propeller blade detection device to solve the problems raised in the above background technology. Utility Model Content

[0003] The purpose of the utility model is to provide a ship propeller blade detection device to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A ship propeller blade detection device, used for detecting propellers, comprises a detection platform, a mounting pillar is threadedly connected at a position near the left side of the upper end of the detection platform, a positioning pin is threadedly connected at the upper end of the mounting pillar, a movable guide rail is welded at a position near the right side of the upper end of the detection platform, a reciprocating screw is rotatably installed in the movable guide rail, the outer side of the reciprocating screw is threadedly connected to a clamping guide rail, a positive and negative threaded screw is rotatably installed in the clamping guide rail, a moving block 1 is threadedly connected at the positive position of the positive thread on the positive and negative threaded screw, a moving block 2 is threadedly connected at the negative position of the positive and negative threaded screw, a connecting rod 1 is welded at one end of the moving block 1, a lower mold is fixedly installed at one end of the connecting rod 1 by a screw, a connecting rod 2 is welded at one end of the moving block 2, a connecting rod 3 is hinged at one end of the connecting rod 2 by a hinge plate, and an upper mold is fixedly installed at one end of the connecting rod 3 by a screw.

[0006] As a further solution of the utility model: an upper mold groove is opened at the lower end of the upper mold, and a lower mold groove is opened at the upper end of the lower mold. The upper mold groove and the lower mold groove have the same shape and size as the propeller blade, and the depth of the upper mold groove and the lower mold groove is half the thickness of the propeller blade.

[0007] As a further solution of the utility model: a slot is provided at an end of the connecting rod three close to the connecting rod two.

[0008] As a further solution of the utility model: a slide groove is provided at the lower end of the connecting rod 2 close to the connecting rod 3, an insert block is slidably installed in the slide groove, and a shift block is welded at the lower end of the insert block close to the right side.

[0009] As a further solution of the utility model: the right end of the reciprocating screw rod extends through the outside of the movable guide rail and is fixedly connected with a knob 1.

[0010] As a further solution of the utility model: the upper end of the positive and negative threaded screw rod extends through the upper end of the clamping guide rail and is fixedly connected with knob 2.

[0011] As a further solution of the utility model: a propeller is provided on the outer movable sleeve of the positioning pin.

[0012] Compared with the prior art, the utility model provides a ship propeller blade detection device, which has the following technical effects and advantages:

[0013] 1. The utility model uses a method for measuring the fitting surface by blue printing, which is particularly suitable for checking the dimensional characteristics of the blade, such as the curvature, distortion and symmetry. First, the blue printing agent is evenly coated on the inner wall of the upper die groove and the lower die groove, and then the positive and negative threaded screw is rotated by knob 2, so that the moving block 1 and the moving block 2 drive the connecting rod 1 and the connecting rod 2 to move, and then the connecting rod 2 drives the connecting rod 3 to move, thereby driving the lower mold and the upper mold to move, so as to clamp the propeller blade, and the blue printing agent will be attached to the propeller blade, and then the lower mold and the upper mold are separated from the propeller blade, and the blue printing paper is attached to the blade, and a period of time is waited for the blue printing agent to dry, and then the blue printing paper is carefully separated from the surface of the blade to ensure that the blue printing pattern is not damaged, and the blue printing pattern is checked to determine whether the dimensional characteristics of the blade, such as the curvature, distortion and symmetry, meet the requirements.

[0014] 2. In the utility model, the connecting rod 2 and the connecting rod 3 are connected by a hinge plate. By moving the shifting block to move the inserting block out of the slot at the end of the connecting rod 3, the connecting rod 3 and the upper mold can be turned upward, which is convenient for coating and cleaning the upper mold groove and the lower mold groove with blue printing agent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic diagram of the overall structure of a ship propeller blade detection device.

[0016] Figure 2 The present invention is a schematic diagram of the structure of installing pillars and positioning pins in a ship propeller blade detection device.

[0017] Figure 3 The present invention is a partial cross-sectional view of a movable guide rail and a clamping guide rail in a ship propeller blade detection device.

[0018] Figure 4 The present invention is a schematic diagram of the structure of a slot and an insert in a ship propeller blade detection device.

[0019] Figure 5 The present invention is a schematic diagram of the structure of an upper die groove and a lower die groove in a ship propeller blade detection device.

[0020] In the figure: 1. detection platform; 2. mounting support; 3. propeller; 4. positioning pin; 5. moving guide rail; 6. clamping guide rail; 7. connecting rod one; 8. connecting rod two; 9. connecting rod three; 10. hinge plate; 11. lower mold; 12. upper mold; 13. knob one; 14. knob two; 15. reciprocating screw; 16. positive and negative thread screw; 17. moving block one; 18. moving block two; 19. shift block; 20. slot; 21. slide groove; 22. insert block; 23. upper mold groove; 24. lower mold groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-5The ship propeller blade detection device shown in the figure comprises a detection platform 1, a mounting pillar 2 is threadedly connected to the upper end of the detection platform 1 near the left side, a positioning pin 4 is threadedly connected to the upper end of the mounting pillar 2, a movable guide rail 5 is welded to the upper end of the detection platform 1 near the right side, a reciprocating screw 15 is rotatably installed in the movable guide rail 5, a clamping guide rail 6 is threadedly connected to the outer side of the reciprocating screw 15, a positive and negative threaded screw 16 is rotatably installed in the clamping guide rail 6, a moving block 17 is threadedly connected to the positive position of the positive and negative threaded screw 16, a moving block 2 18 is threadedly connected to the positive position of the positive and negative threaded screw 16, a connecting rod 1 7 is welded to one end of the moving block 17, a lower mold 11 is fixedly installed to one end of the connecting rod 1 7 by screws, a connecting rod 2 8 is welded to one end of the moving block 2 18, and one end of the connecting rod 2 8 is hinged to a connecting rod 3 9 through a hinge plate 10, One end of the connecting rod 3 9 is fixed with an upper mold 12 by screws, an upper mold groove 23 is provided at the lower end of the upper mold 12, and a lower mold groove 24 is provided at the upper end of the lower mold 11. The upper mold groove 23 and the lower mold groove 24 have the same shape and size as the blades of the propeller 3, and the depth of the upper mold groove 23 and the lower mold groove 24 is half the thickness of the blades of the propeller 3. The end of the connecting rod 3 9 close to the connecting rod 2 8 is provided with a slot 20, and the connecting rod 2 8 A slide groove 21 is provided at the lower end near one side of the connecting rod three 9, and an insert block 22 is slidably installed in the slide groove 21. A shift block 19 is welded to the lower end of the insert block 22 near the right side. The right end of the reciprocating screw rod 15 extends through and extends to the outside of the movable guide rail 5 and is fixedly connected to a knob one 13. The upper end of the positive and negative threaded screw rod 16 extends through and extends to the upper end of the clamping guide rail 6 and is fixedly connected to a knob two 14. The outer movable sleeve of the locating pin 4 is provided with a propeller 3.

[0023] Working principle of the utility model: when using the utility model to monitor the blades of the propeller 3, first fix the propeller 3 on the mounting support 2 through the positioning pin 4, then move the shifting block 19 to move the inserting block 22 out of the slot 20 at the end of the connecting rod 3 9, then turn the connecting rod 3 9 and the upper mold 12 upward, then evenly apply the blue printing agent on the inner walls of the upper mold groove 23 and the lower mold groove 24, then turn the connecting rod 3 9 and the upper mold 12 down, then move the shifting block 19 to insert the inserting block 22 into the slot 20, then rotate the reciprocating screw rod 15 through the knob 13, thereby driving the clamping guide rail 6 to move in the direction of the propeller 3, and at the same time rotate the propeller 3 to align the blades of the propeller 3 with the upper mold 12 and the lower mold 11 The positions of the propellers 3 are aligned with each other, and then the forward and reverse threaded screw rods 16 are rotated by means of knob 2 14, so that the moving blocks 17 and 18 drive the connecting rods 1 7 and 2 8 to move, and at the same time, the connecting rods 2 8 drive the connecting rods 3 9 to move, thereby driving the lower mold 11 and the upper mold 12 to move, so as to clamp the propeller 3 blades, and the blue printing agent will be attached to the propeller 3 blades. Then, the lower mold 11 and the upper mold 12 are separated from the propeller 3 blades, and the blue printing paper is attached to the blades. Wait for a while for the blue printing agent to dry, and then carefully separate the blue printing paper from the surface of the blade to ensure that the blue printing pattern is not damaged. Check the blue printing pattern to determine whether the dimensional characteristics of the blades such as curvature, twisting and symmetry meet the requirements.

[0024] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ship propeller blade detection device for detecting a propeller (3), comprising a detection platform (1), characterized in that: The upper end of the detection platform (1) is threadedly connected to a mounting support (2) at a position close to the left side, and the upper end of the mounting support (2) is threadedly connected to a positioning pin (4). The upper end of the detection platform (1) is welded to a movable guide rail (5) at a position close to the right side, and a reciprocating screw rod (15) is rotatably mounted in the movable guide rail (5). The outer side of the reciprocating screw rod (15) is threadedly connected to a clamping guide rail (6), and a positive and negative threaded screw rod (16) is rotatably mounted in the clamping guide rail (6). The positive and negative threaded screw rod (16) has a thread at a positive position. A moving block 1 (17) is connected, and a moving block 2 (18) is threadedly connected at the position of the reverse thread on the forward and reverse threaded screw rod (16), one end of the moving block 1 (17) is welded with a connecting rod 1 (7), one end of the connecting rod 1 (7) is fixedly mounted with a lower mold (11) by means of screws, one end of the moving block 2 (18) is welded with a connecting rod 2 (8), one end of the connecting rod 2 (8) is hingedly connected with a connecting rod 3 (9) by means of a hinge plate (10), and one end of the connecting rod 3 (9) is fixedly mounted with an upper mold (12) by means of screws.

2. A ship propeller blade detection device according to claim 1, characterized in that: An upper die groove (23) is formed at the lower end of the upper die (12), and a lower die groove (24) is formed at the upper end of the lower die (11); the upper die groove (23) and the lower die groove (24) have the same shape and size as the blades of the propeller (3); and the depth of the upper die groove (23) and the lower die groove (24) is half the thickness of the blades of the propeller (3).

3. A ship propeller blade detection device according to claim 1, characterized in that: A slot (20) is provided on one end of the connecting rod three (9) close to the connecting rod two (8).

4. A ship propeller blade detection device according to claim 1, characterized in that: A slide groove (21) is provided at the lower end of the second connecting rod (8) close to the third connecting rod (9), an insert block (22) is slidably installed in the slide groove (21), and a shift block (19) is welded at a position close to the right side of the lower end of the insert block (22).

5. A ship propeller blade detection device according to claim 1, characterized in that: The right end of the reciprocating screw rod (15) extends through the outside of the movable guide rail (5) and is fixedly connected to a knob 1 (13).

6. A ship propeller blade detection device according to claim 1, characterized in that: The upper end of the positive and negative threaded screw rod (16) extends through the upper end of the clamping guide rail (6) and is fixedly connected to a second knob (14).

7. A ship propeller blade detection device according to claim 1, characterized in that: The outer movable sleeve of the positioning pin (4) is provided with a propeller (3).

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