Manufacturing mold for paddle front guide pipe of ship energy-saving device

By designing a mold for manufacturing the propeller duct of a ship energy-saving device, and utilizing the cooperation of a support base and clamping components, the precise positioning of the arc-shaped duct and guide vane was achieved, solving the positioning problem during the welding process and improving manufacturing efficiency and quality.

CN223917113UActive Publication Date: 2026-02-17FOSHAN DAXIANG MARINE EQUIP CO LTD
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Patent Information

Application Number
CN202520580857.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2026-02-17
Estimated Expiration
2035-03-31

AI Technical Summary

Technical Problem

The propeller front guide tube is difficult to position accurately during the welding process, which affects the production efficiency and quality.

Method used

A mold for manufacturing the propeller front duct of a marine energy-saving device was designed, including a support base, a first clamping component, and a second clamping component. The mold utilizes a push plate, an elastic telescopic component, and a slot structure to achieve precise positioning of the arc-shaped duct and the arc-shaped guide vane.

Benefits of technology

This improved the efficiency and quality of the propeller front duct welding process, ensuring precise welding positioning of each component.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a ship energy-saving device oar front guide pipe manufacturing mold which comprises a supporting base used for assisting in welding of an oar front guide pipe, the oar front guide pipe comprises an arc-shaped guide pipe and a plurality of sets of arc-shaped guide vanes, and the oar front guide pipe manufacturing mold further comprises a first clamping assembly arranged on the supporting base and used for assisting in clamping of the arc-shaped guide pipe. A plurality of second clamping assemblies used for clamping the arc-shaped guide vanes are arranged on the supporting base, and the second clamping assemblies and the arc-shaped guide vanes are arranged in a one-to-one correspondence mode. According to the ship energy-saving device oar front guide pipe manufacturing mold, in the welding manufacturing process of an oar front guide pipe, the oar front guide pipe is clamped through mutual cooperation of the first clamping assembly, the second clamping assemblies, the push plate and the telescopic elastic assembly; the die function of assisting in accurate welding and positioning of the arc-shaped guide pipe and the arc-shaped guide vanes in the welding and manufacturing process of the paddle front guide pipe can be achieved, and the manufacturing efficiency and the manufacturing quality of the paddle front guide pipe are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of ship energy-saving device processing technology, specifically a mold for manufacturing the propeller front guide tube of a ship energy-saving device. Background Technology

[0002] The propeller duct is a complex energy-saving device located in front of the ship's propeller. As a ship energy-saving device, the propeller duct achieves energy-saving effects by improving the wake and increasing rotation. It is suitable for most ship types, and the energy-saving effect is about 2%-7%.

[0003] The propeller nose duct consists of a guide tube and guide vanes. The curved surface shape of each part is different. The curved surface is a two-dimensional curved surface, which is relatively complex. During the welding and manufacturing process of the propeller nose duct, due to their own weight, it is difficult to accurately position each group of guide vanes and guide tubes during the welding process, which affects the efficiency and quality of the propeller nose duct welding and manufacturing.

[0004] Therefore, there is an urgent need for a mold for manufacturing the propeller duct of a ship energy-saving device to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a mold for manufacturing the propeller front guide tube of a ship energy-saving device, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a mold for manufacturing a propeller front duct of a ship energy-saving device, including a support base for assisting in welding the propeller front duct, the propeller front duct including an arc-shaped duct and multiple sets of arc-shaped guide vanes, and further including:

[0007] A first clamping assembly for assisting in clamping the arc-shaped guide tube is provided on the support base. A second clamping assembly for clamping the arc-shaped guide vane is provided on the support base. Multiple sets of the second clamping assembly are provided, and each set of the second clamping assembly is respectively set with each set of arc-shaped guide vane. A push plate is provided on one side of the second clamping assembly for squeezing and pushing the arc-shaped guide vane toward the arc-shaped guide tube after clamping. An elastic telescopic assembly for elastic telescopic connection between the push plate and the second clamping assembly is provided.

[0008] The second clamping assembly includes a connecting plate disposed above the support base. Multiple sets of second clamping plates are fixed between the connecting plate and the support base. The second clamping plates are provided with second clamping slots for mounting the arc-shaped guide vanes.

[0009] The inner surface of the second slot is coated with a smooth film to assist the lateral sliding of the arc-shaped guide vane after it is engaged.

[0010] The elastic telescopic assembly includes multiple sets of sleeves fixed to the second clamping assembly on the side of the second clamping plate away from the first clamping assembly. A sliding rod is slidably connected to the sleeve, one end of the sliding rod is fixed to the push plate, and a spring is sleeved on the outside of the sleeve. The two ends of the spring are respectively connected to the push plate and the second clamping plate.

[0011] One side of the push plate has an inclined surface for abutting and driving the arc-shaped guide vane end during the installation process.

[0012] The first clamping assembly includes multiple sets of first clamping plates fixed to the upper end of the support base. The arrangement shape of each set of first clamping plates matches the outer side of the arc-shaped conduit. The sets of first clamping plates are connected and fixed by multiple sets of connecting brackets. The first clamping plates are provided with first slots for clamping and installing the arc-shaped conduit.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model discloses a mold for manufacturing the propeller front guide tube of a ship energy-saving device. During the welding process of the propeller front guide tube, the first clamping component, each group of second clamping components, and the cooperation of the push plate and telescopic elastic component can form a mold that assists in the precise welding and positioning of the arc-shaped guide tube and each group of arc-shaped guide vanes during the welding process of the propeller front guide tube, thus ensuring the efficiency and quality of the propeller front guide tube manufacturing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the arc-shaped guide vane after clamping according to this utility model;

[0017] Figure 3 This is a schematic diagram of the second clamping component of this utility model;

[0018] Figure 4 This is a schematic diagram of the push plate and elastic telescopic assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the state of the arc-shaped catheter after clamping according to this utility model;

[0020] Figure 6 This is a schematic diagram of the first clamping component of this utility model.

[0021] In the figure: 101, arc-shaped guide tube; 102, arc-shaped guide vane; 2, support base; 301, connecting frame; 302, first clamping plate; 303, first clamping slot; 401, second clamping plate; 402, connecting plate; 403, second clamping slot; 5, push plate; 6, inclined plane; 701, sleeve; 702, slide rod; 703, spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-6 This utility model provides a mold for manufacturing a propeller front duct of a ship energy-saving device, including a support base 2 for assisting in welding the propeller front duct, the propeller front duct including an arc-shaped duct 101 and multiple sets of arc-shaped guide vanes 102, and further including:

[0024] A first clamping assembly for assisting in clamping the arc-shaped guide tube 101 is provided on the support base 2. A second clamping assembly for clamping the arc-shaped guide vane 102 is provided on the support base 2. Multiple sets of the second clamping assembly are provided, and each set of the second clamping assembly is respectively set to correspond one-to-one with each set of arc-shaped guide vanes 102. A push plate 5 is provided on one side of the second clamping assembly for squeezing and pushing the arc-shaped guide vane 102 toward the arc-shaped guide tube 101 after clamping. An elastic telescopic assembly for elastic telescopic connection between the push plate 5 and the second clamping assembly is provided.

[0025] It should be noted that during the welding process of the propeller front guide, the cooperation of the first clamping component, each group of second clamping components, the push plate 5 and the telescopic elastic component can form a mold that assists in the precise welding and positioning of the arc-shaped guide 101 and each group of arc-shaped guide vanes 102 during the welding process of the propeller front guide, thus ensuring the efficiency and quality of the propeller front guide manufacturing.

[0026] The second clamping assembly includes a connecting plate 402 disposed above the support base 2. Multiple sets of second clamping plates 401 are fixed between the connecting plate 402 and the support base 2. The second clamping plates 401 are provided with second slots 403 for mounting the arc-shaped guide vane 102.

[0027] It should be noted here that: each set of arc-shaped guide vanes 102 is sequentially snapped into the second slot 403 of the second clamping plate 401 on the second clamping assembly. Through the snapping action, the state and position of each set of arc-shaped guide vanes 102 are maintained after they are snapped in.

[0028] The inner surface of the second slot 403 is coated with a smooth film to assist the arc-shaped guide vane 102 in sliding laterally after it is engaged.

[0029] It should be noted here that the friction is reduced by the smooth film, which facilitates the lateral sliding of the arc-shaped guide vane 102 inside the second slot 403.

[0030] The elastic telescopic assembly includes multiple sets of sleeves 701 fixed on the second clamping assembly on the side of the second clamping plate 401 away from the first clamping assembly. A slide rod 702 is slidably connected on the sleeve 701. One end of the slide rod 702 is fixed to the push plate 5. A spring 703 is sleeved on the outside of the sleeve 701. The two ends of the spring 703 are respectively connected to the push plate 5 and the second clamping plate 401.

[0031] It should be noted here that the sleeve 701 and the slide rod 702 guide the movement of the push plate 5 after being subjected to force, and the spring 703 generates elastic force on the push plate 5 after it has moved.

[0032] One side of the push plate 5 is provided with an inclined surface 6 for abutting and driving the arc-shaped guide vane 102 against the end of the arc-shaped guide vane 102 during the locking process;

[0033] It should be noted that during the process of inserting the arc-shaped guide vane 102 into the second slot 403 of the second card plate 401, one end of the arc-shaped guide vane 102 abuts against the inclined surface 6 on the push plate 5. During the abutting process, the push plate 5 is pushed away from the second card plate 401 by force.

[0034] The first clamping assembly includes multiple sets of first clamping plates 302 fixed to the upper end of the support base 2. The arrangement shape of each set of first clamping plates 302 matches the outer side of the arc-shaped conduit 101. The sets of first clamping plates 302 are connected and fixed by multiple sets of connecting brackets 301. The first clamping plate 302 is provided with a first clamping groove 303 for clamping and installing the arc-shaped conduit 101.

[0035] It should be noted here that during the welding process of the propeller front guide tube, the arc-shaped guide tube 101 is inserted into the inner side of the first slot 303 of each group of first clamping plates 302 to clamp and fix the arc-shaped guide tube 101.

[0036] Working principle: During the welding process of the propeller front guide tube, the arc-shaped guide tube 101 is inserted into the inner side of the first slot 303 of each group of first clamping plates 302 to clamp and fix the arc-shaped guide tube 101. After the arc-shaped guide tube 101 is clamped and fixed, each group of arc-shaped guide vanes 102 is sequentially clamped and installed in the second slot 403 of the second clamping plate 401 on the second clamping assembly. Through the clamping action, the state and position of each group of arc-shaped guide vanes 102 after being clamped are maintained.

[0037] During the process of inserting the arc-shaped guide vane 102 into the second slot 403 of the second clamping plate 401, one end of the arc-shaped guide vane 102 abuts against the inclined surface 6 on the push plate 5. During this abutment, the push plate 5 is pushed away from the second clamping plate 401. During the movement of the push plate 5, the slide rod 702 is pulled to slide on the sleeve 701, causing the spring 703 to deform and generate elastic force. After the arc-shaped guide vane 102 is locked and positioned inside the second slot 403 of the second clamping plate 401, it is released by the elastic force. The elastic pulling action of the spring 703 on the push plate 5 causes the push plate 5 to abut against one side of the arc-shaped guide vane 102. During the abutment process, the arc-shaped guide vane 102, after being positioned, moves laterally inside the second slot 403 of each group of second clamping plates 401 and abuts against the clamped arc-shaped guide tube 101. This forms a mold that assists in the precise welding and positioning of the arc-shaped guide tube 101 and each group of arc-shaped guide vanes 102 during the welding process of the propeller front guide tube, ensuring the efficiency and quality of the propeller front guide tube manufacturing.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A ship energy-saving device pre-propeller duct manufacturing mold, comprising: a support base (2) for assisting in welding of a pre-propeller duct, the pre-propeller duct comprising an arc-shaped duct (101) and a plurality of sets of arc-shaped guide vanes (102); characterized in that it further comprises: a first clamping assembly provided on the support base (2) for assisting in clamping of the arc-shaped duct (101), the support base (2) being provided with a second clamping assembly for clamping of the arc-shaped guide vanes (102), the second clamping assembly being provided in a plurality of sets, each set of the second clamping assembly being provided in one-to-one correspondence with each set of the arc-shaped guide vanes (102), one side of the second clamping assembly being provided with a push plate (5) for pushing and extruding the clamped arc-shaped guide vanes (102) towards the arc-shaped duct (101), a spring and elastic assembly being provided between the push plate (5) and the second clamping assembly for spring and elastic connection of the push plate (5).

2. A mould for making a pre-propeller duct for a marine energy saving device according to claim 1, characterised in that: The second clamping assembly comprises a connecting plate (402) provided above the support base (2), a plurality of sets of second clamping plates (401) being fixed between the connecting plate (402) and the support base (2), the second clamping plates (401) being provided with second clamping grooves (403) for clamping and mounting of the arc-shaped guide vanes (102).

3. A mould for making a pre-propeller duct for a marine energy saving device according to claim 2, characterised in that: The inner side surface of the second clamping groove (403) is coated with a smooth film for assisting in horizontal sliding of the clamped arc-shaped guide vanes (102).

4. A mould for making a pre-propeller duct for a marine energy saving device according to claim 2, characterised in that: The spring and elastic assembly comprises a plurality of sets of sleeves (701) fixed on one side of the second clamping plate (401) of the second clamping assembly away from the first clamping assembly, a sliding rod (702) being slidably connected to the sleeve (701), one end of the sliding rod (702) being fixed to the push plate (5), the outer side of the sleeve (701) being provided with a spring (703), both ends of the spring (703) being connected to the push plate (5) and the second clamping plate (401), respectively.

5. A mould for making a pre-propeller duct for a marine energy saving device according to claim 4, characterised in that: One side of the push plate (5) is provided with an inclined surface (6) for transmission of the end of the arc-shaped guide vane (102) during clamping of the arc-shaped guide vane (102).

6. A mold for making a pre-propeller duct for a marine energy saving device as defined in claim 1, characterized in that: The first clamping assembly comprises a plurality of sets of first clamping plates (302) fixed to the upper end of the support base (2), the arrangement shape of each set of the first clamping plates (302) being matched with the outer side of the arc-shaped duct (101), and each set of the first clamping plates (302) being connected and fixed by a plurality of sets of connecting frames (301), the first clamping plates (302) being provided with first clamping grooves (303) for clamping and mounting of the arc-shaped duct (101).