Assembly tool for adjusting screw in propeller speed governor

By designing an assembly tool for adjusting screws in a propeller speed limiter including a jaw support frame body and a wrench rod, the problem of difficulty in assembly of adjustment screws is solved, the assembly efficiency is improved, and the use needs of workers are met.

CN119635574APending Publication Date: 2025-03-18AVIC HUIYANG AVIATION PROPELLER
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Patent Information

Application Number
CN202311201858.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-18
Publication Date
2025-03-18

AI Technical Summary

Technical Problem

During the assembly process of the propeller speed limiter, the assembly of the adjustment screw is difficult due to the large spring force, and the lack of special assembly tools leads to low assembly efficiency.

Method used

An assembly tool for adjusting screws in a propeller speed limiter is designed, including a jaw support frame body and a wrench rod. The jaw support frame body is hooked to the outer edge of the speed limiter housing through multiple jaw rods and clamped. The lower end of the wrench rod is inserted into the groove of the head of the adjustment screw, and the wrench rod is rotated through the handle rotating rod to assemble the adjustment screw.

Benefits of technology

The assembly tool provides stable support through the jaw support frame, which facilitates the rotation of the wrench rod, has a simple structure and is convenient to operate, significantly improves the assembly efficiency of the adjustment screws and meets the needs of workers.

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Abstract

The invention discloses an assembly tool for adjusting screws in a propeller speed governor, which comprises a clamping jaw support frame body, a plurality of clamping jaw rods on the clamping jaw support frame body are hooked and clamped with the outer edge of a speed governor shell, and a through hole is formed in the clamping jaw support frame body; the wrench rod is arranged in the through hole in a penetrating mode, the lower end of the wrench rod is matched with a head groove of an adjusting screw located in the speed governor shell in a clamped mode, and a handle rotating rod is installed at the position, close to the upper end of the wrench rod, of the wrench rod. When in use, the plurality of clamping jaw rods on the clamping jaw support frame body are hooked on the outer edge of a speed governor shell and are clamped and fixed, then the lower end of the wrench rod is inserted into a groove in the head of an adjusting screw, and the adjusting screw can be assembled into a corresponding hole in a speed governor cover by rotating the handle rotating rod. Therefore, according to the assembly tool, the wrench rod can be stably supported through the clamping jaw supporting frame body, rotation of the wrench rod is facilitated, the structure is simple, operation is convenient, the assembly efficiency of the adjusting screw can be improved, and the use requirements of workers are met.
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Description

Technical Field

[0001] The invention relates to the technical field of tooling for assembling a propeller speed limiter, and more particularly to an assembly tooling for an adjusting screw in a propeller speed limiter. Background Art

[0002] During the assembly process of the propeller speed limiter, an adjustment screw for adjusting the speed limiter pressure is installed in the speed limiter cover assembly (for example, see the adjustment screw recorded in CN212423446U-a propeller speed limiter). The screw has a large pressing force due to contact with the spring. In the existing installation process of the adjustment screw, workers originally used a screwdriver to assemble the adjustment screw, but the large spring force caused a great obstacle to their work, making the assembly of the adjustment screw difficult, and no special assembly tool that can be used for the assembly of the adjustment screw has been found during the search process.

[0003] Therefore, how to provide an assembly tool for adjusting screws in a propeller speed limiter that can meet the use needs of workers and speed up the assembly efficiency of the adjusting screws is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In view of this, the present invention provides an assembly tool for an adjusting screw in a propeller speed limiter, which can meet the use needs of workers and speed up the assembly efficiency of the adjusting screw.

[0005] In order to achieve the above object, the present invention adopts the following technical solution:

[0006] An assembly tool for an adjusting screw in a propeller speed limiter, comprising:

[0007] A clamping claw support frame, wherein a plurality of clamping claw rods on the clamping claw support frame are hooked and clamped with the outer edge of the speed limiter housing, and a through hole is opened on the clamping claw support frame;

[0008] A wrench rod is inserted into the through hole, the lower end of the wrench rod is engaged with the head groove of the adjustment screw located inside the speed limiter housing, and a handle rotating rod is installed on the wrench rod near its upper end.

[0009] It can be known from the above technical solutions that, compared with the prior art, the present invention discloses an assembly tool for adjusting screws in a propeller speed limiter. When in use, multiple clamping claw rods on the clamping claw support frame are hooked on the outer edge of the speed limiter housing and clamped and fixed, and then the lower end of the wrench rod is inserted into the groove of the adjusting screw head, and the adjusting screw can be assembled into the corresponding hole on the speed limiter cover by turning the handle turning rod. Therefore, the assembly tool can provide stable support for the wrench rod through the clamping claw support frame, which is convenient for the rotation of the wrench rod. It has a simple structure and is easy to operate, which can improve the assembly efficiency of the adjusting screw and meet the use needs of workers.

[0010] Furthermore, the clamping jaw support frame includes:

[0011] A sleeve, the sleeve hole of the sleeve is the through hole, and the sleeve is sleeved on the wrench rod through the sleeve hole;

[0012] A transverse support arm, wherein the transverse support arm is in multiple numbers, one end of which is evenly fixed on the outer peripheral wall of the sleeve, and the other end is respectively hingedly connected to one end of the plurality of clamping claw rods, a first pin hole is opened on the transverse support arm near one end thereof, and a second pin hole is opened on the clamping claw rod near one end thereof;

[0013] There are multiple positioning anti-rotation pins, which are inserted into the corresponding first pin holes and the second pin holes.

[0014] The beneficial effect of adopting the above technical solution is: when in use, the swingable clamping claw rod is hooked on the outer edge, and then the positioning anti-rotation pin is inserted into the first pin hole and the second pin hole, so that the clamping claw rod and the transverse support arm can be fixed. At this time, the clamping claw rod is firmly clamped on the outer edge of the speed limiter housing, and then the adjustment screw can be assembled by rotating the wrench rod through the handle rotating rod. The clamping claw support frame has a simple structure, low manufacturing cost, and is easy to operate.

[0015] Furthermore, the other end of the transverse support arm has a U-shaped notch, and one end of the clamping claw rod is hingedly connected to the U-shaped notch by a screw.

[0016] The beneficial effect of adopting the above technical solution is that it is conducive to the rapid positioning and installation of the clamping claw rod and the lateral support arm.

[0017] Furthermore, the other end of the clamping claw rod has a hook that is hooked and clamped with the outer edge.

[0018] The beneficial effect of adopting the above technical solution is that it is easy to hook and fix the clamping claw rod to the outer edge.

[0019] Furthermore, a rubber pad is adhered to the top end surface of the hook that contacts the outer edge.

[0020] The beneficial effect of adopting the above technical solution is that the hook is in soft contact with the outer edge instead of hard contact, thereby preventing hard damage to the outer edge of the speed limiter housing.

[0021] Furthermore, a mounting hole is provided on the wrench rod near its upper end, and the handle rotating rod is inserted into the mounting hole.

[0022] The beneficial effect of adopting the above technical solution is that the handle rotating rod and the wrench rod can be quickly disassembled and assembled.

[0023] Furthermore, the handle rotating rod is covered with an anti-slip cover.

[0024] The beneficial effect of adopting the above technical solution is: improving the anti-slip effect of the handle rotating rod and ensuring that the wrench rod can rotate smoothly.

[0025] Furthermore, the lower end of the wrench rod is a straight or cross-shaped structure that matches the groove of the adjusting screw head. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of an assembly tool for an adjustment screw in a propeller speed limiter provided by the present invention.

[0028] Figure 2 A schematic diagram of an assembly tool for adjusting a screw in a propeller speed limiter provided by the present invention when in use. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] like Figure 1-Figure 2 As shown, an embodiment of the present invention discloses an assembly tool for adjusting screws in a propeller speed limiter, comprising:

[0031] A clamping claw support frame 1, a plurality of clamping claw rods 13 on the clamping claw support frame 1 are hooked and clamped with an outer edge 1001 on the speed limiter housing 100, and a through hole 101 is opened on the clamping claw support frame 1;

[0032] The wrench rod 2 is inserted into the through hole 101 , the lower end of the wrench rod 2 is engaged with the head groove of the adjustment screw 200 located inside the speed limiter housing 100 , and a handle rotating rod 3 is installed on the wrench rod 2 near its upper end.

[0033] Among them, a specific embodiment of the clamping claw support frame 1 can adopt the following structure:

[0034] The clamping claw support frame 1 comprises:

[0035] The sleeve 11 has a through hole 101, and the sleeve 11 is sleeved on the wrench rod 2 through the through hole;

[0036] A plurality of transverse support arms 12, one end of which is evenly fixed on the outer peripheral wall of the sleeve 11, and the other end is hingedly connected to one end of a plurality of clamping claw rods 13, a first pin hole 121 is opened near one end of the transverse support arm 12, and a second pin hole (not shown) is opened near one end of the clamping claw rod 13;

[0037] The positioning anti-rotation pins 14 are multiple and are inserted into the corresponding first pin holes 121 and the second pin holes.

[0038] The other end of the transverse support arm 12 has a U-shaped notch 122 , and one end of the clamping claw rod 13 is hingedly connected in the U-shaped notch 122 via a screw 15 .

[0039] The other end of the clamping claw rod 13 has a hook 131 that is hooked and clamped with the outer edge 1001.

[0040] A rubber pad (not shown) is adhered to the top end surface of the hook 131 that contacts the outer edge 1001 .

[0041] A mounting hole 21 is provided near the upper end of the wrench rod 2, and the handle rotating rod 3 is inserted into the mounting hole 21. In addition, the handle rotating rod 3 can be threadedly connected to the mounting hole 21, so that the handle rotating rod will not fall off during use and cause danger, thereby ensuring assembly safety. Alternatively, the handle rotating rod 3 can also be directly welded to the mounting hole 21.

[0042] The handle rotating rod 3 is covered with an anti-slip sleeve (not shown).

[0043] The lower end of the wrench rod 2 is a straight or cross-shaped structure 22 that matches the groove of the head of the adjusting screw 200 .

[0044] When the assembly tool is used, the swingable clamping claw rod is first hooked on the outer edge, and then the positioning anti-rotation pin is inserted into the first pin hole and the second pin hole, so that the clamping claw rod and the transverse support arm can be fixed. At this time, the clamping claw rod is firmly clamped on the outer edge of the speed limiter housing, and then the wrench rod is rotated by the handle rotating rod to assemble the adjustment screw. The assembly tool can provide stable force support for the wrench rod through the clamping claw support frame, which is convenient for the rotation operation of the wrench rod. It has a simple structure and is easy to operate. It can improve the assembly efficiency of the adjustment screw and meet the use needs of workers.

[0045] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0046] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An assembly tool for adjusting screws in a propeller speed limiter, characterized in that: include: A clamping claw support frame (1), wherein a plurality of clamping claw rods (13) on the clamping claw support frame (1) are hooked and clamped with an outer edge (1001) on a speed limiter housing (100), and a through hole (101) is provided on the clamping claw support frame (1); A wrench rod (2) is inserted into the through hole (101), the lower end of the wrench rod (2) is snap-fitted with a head groove of an adjustment screw (200) located inside the speed limiter housing (100), and a handle rotating rod (3) is installed on the wrench rod (2) near its upper end.

2. The assembly tool for adjusting screws in a propeller speed limiter according to claim 1, characterized in that: The clamping jaw support frame (1) comprises: A sleeve (11), wherein the sleeve hole of the sleeve (11) is the through hole (101), and the sleeve (11) is sleeved on the wrench rod (2) through the sleeve hole; A plurality of transverse support arms (12), one end of which is evenly fixed on the outer peripheral wall of the sleeve (11), and the other end is respectively hingedly connected to one end of the plurality of clamping claw rods (13), a first pin hole (121) is provided on the transverse support arm (12) near one end thereof, and a second pin hole is provided on the clamping claw rod (13) near one end thereof; A positioning anti-rotation pin (14), wherein the positioning anti-rotation pin (14) is multiple and is inserted into the corresponding first pin hole (121) and the second pin hole.

3. The assembly tool for adjusting screws in a propeller speed limiter according to claim 2, characterized in that: The other end of the transverse support arm (12) has a U-shaped notch (122), and one end of the clamping claw rod (13) is hingedly connected to the U-shaped notch (122) via a screw (15).

4. The assembly tool for adjusting screws in a propeller speed limiter according to claim 2, characterized in that: The other end of the clamping claw rod (13) has a hook (131) that is hooked and clamped with the outer edge (1001).

5. The assembly tool for adjusting screws in a propeller speed limiter according to claim 4, characterized in that: A rubber pad is adhered to the top end surface of the hook (131) that contacts the outer edge (1001).

6. An assembly tool for adjusting screws in a propeller speed limiter according to any one of claims 1 to 5, characterized in that: A mounting hole (21) is provided on the wrench rod (2) near its upper end, and the handle rotating rod (3) is inserted into the mounting hole (21).

7. An assembly tool for adjusting screws in a propeller speed limiter according to any one of claims 1 to 5, characterized in that: The handle rotating rod (3) is sleeved with an anti-slip sleeve.

8. An assembly tool for adjusting screws in a propeller speed limiter according to any one of claims 1 to 5, characterized in that: The lower end of the wrench rod (2) is a straight or cross-shaped structure (22) that matches the groove of the head of the adjustment screw (200).

Citation Information

Patent Citations

  • Propeller speed limiter

    CN212423446U

  • Tensioner in fractured bolt take-out device

    CN107717870A

  • Screwdriver for removing bolts or screws

    CN203863623U

  • Construction screw remove device

    CN207432121U

  • Bicycle crank and crank screw synchronous dismounting tool

    CN209868465U