Self-lubricating taper pin dismounting tool and dismounting tool kit

Abstract

The utility model relates to a self-lubricating taper pin dismounting tool and a dismounting tool kit, the self-lubricating taper pin dismounting tool is used for dismounting a self-lubricating taper pin fixed on a base body, the self-lubricating taper pin dismounting tool comprises a main rod and a pull rod pivoted on the main rod, the pull rod comprises a first external thread section, the pull rod is provided with a first external thread section, the first external thread section is used for being in threaded connection with a screw hole formed in a self-lubricating taper pin, the main rod is provided with a force application part for external force application and a supporting part used for forming a fulcrum, the pull rod and the main rod are defined to be pivoted to a first pivoting point, and the force application part and the supporting part are arranged on the two sides of the first pivoting point. The disassembling tool can be conveniently and rapidly applied to disassembling scenes of various self-lubricating taper pins, labor can be saved, the needed space is small, installation and operation are convenient, and the disassembling tool can be well applied even in a narrow space. In addition, the dismounting tool can be folded, so that the portability of the tool is improved, and the practicability of the dismounting tool is greatly improved.

Description

Technical Field

[0001] The utility model relates to a self-lubricating tapered pin disassembly tool. Background Art

[0002] The self-lubricating tapered pin is a self-lubricating bearing accessory, commonly used in aircraft control mechanisms. The self-lubricating tapered pin usually includes a tapered pin rod and a self-lubricating liner with a fixed ring sleeved outside the tapered pin rod. As the end connection of the actuator, the self-lubricating tapered pin is often assembled with matching fasteners such as tapered bushings, washers, nuts, etc., to fix the component between the support and the rocker arm and transmit the motion to each rocker arm.

[0003] Among them, the self-lubricating tapered pin and the matching base adopt a conical surface fit, without gap, and high operating precision. After long-term use, it is difficult to disassemble and replace due to adhesive wear. In addition, the operating space of the tapered pin installation position is relatively narrow, and traditional disassembly tools (puller, impact drill, etc.) cannot be used. This makes the disassembly of the self-lubricating tapered pin difficult and often takes a lot of work hours. Utility Model Content

[0004] Therefore, in view of the above problems, the utility model proposes a self-lubricating tapered pin disassembly tool and a disassembly tool kit, which can realize the disassembly of the self-lubricating tapered pin conveniently, quickly and labor-savingly.

[0005] The utility model is implemented by the following technical solutions:

[0006] The utility model proposes a self-lubricating tapered pin disassembly tool for disassembling a self-lubricating tapered pin fixed on a base, comprising a main rod and a pull rod pivotally connected to the main rod, the pull rod comprising a first external thread section, the first external thread section being used for being threadedly connected to a screw hole provided on the self-lubricating tapered pin, the main rod being provided with a force-applying portion for external force application and a support portion for forming a fulcrum, the pull rod and the main rod being defined to be pivotally connected at a first pivot point, and the force-applying portion and the support portion being arranged at both sides of the first pivot point.

[0007] Preferably, the support portion comprises an extension portion pivotally connected to the main rod, and the extension portion is implemented to be able to pivot relatively to a position intersecting with the main rod.

[0008] Preferably, the extension portion and the main rod are pivotally connected at a second pivot point, and the extension portion is provided with at least two support interfaces with different distances from the second pivot point.

[0009] Preferably, the two support interfaces are connected in a stepped manner.

[0010] Preferably, the pivot connection between the extension portion and the main rod is detachable.

[0011] Preferably, the extension part is a series of accessories with a plurality of different lengths, and different supporting lengths of the supporting part can be achieved by replacing the extension parts with different lengths.

[0012] Preferably, the main rod and / or the extension portion is provided with a clearance groove allowing the extension portion to pivot from an unfolded state relative to the main rod to a folded state folded into the main rod.

[0013] Preferably, the pivot connection between the pull rod and the main rod is detachable.

[0014] Among them, preferably, the pull rod is a series of accessories with a variety of different lengths, and different connection lengths between the main rod and the self-lubricating tapered pin are achieved by replacing pull rods of different lengths; or the pull rod is a series of accessories with a variety of different outer diameters of the first external thread section, and different screw holes on self-lubricating tapered pins are matched by replacing pull rods with different outer diameters of the first external thread section.

[0015] Preferably, the distance between the first pivot point and the support portion is adjustable.

[0016] Preferably, the main rod is provided with a receiving cavity for allowing the pull rod to pivot from an unfolded state relative to the main rod to a folded state folded to the main rod.

[0017] The utility model also proposes a self-lubricating tapered pin disassembly tool kit, including the self-lubricating tapered pin disassembly tool described above, and also including an impact tool, wherein the impact tool includes a sliding rod, one end of the sliding rod is provided with a second external thread section, which is used to be threadedly connected to a screw hole provided on the self-lubricating tapered pin, and an impact slider is slidably connected to the sliding rod for applying impact force to the self-lubricating tapered pin.

[0018] Preferably, a limiting block is fixedly provided at the other end of the sliding rod to prevent the impact sliding block from detaching from the sliding rod.

[0019] The utility model has the following beneficial effects: the disassembly tool of the utility model can be conveniently and quickly used in various disassembly scenarios of self-lubricating tapered pins, and can save labor, and the disassembly tool requires a small space, is easy to install and operate, and can be well used even in narrow spaces. In addition, the disassembly tool of the utility model can be folded, which improves the portability of the tool and greatly increases its practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the self-lubricating tapered pin removal tool, the self-lubricating tapered pin and the base in Example 1;

[0021] Figure 2 is a front view of the self-lubricating tapered pin removal tool in Example 1;

[0022] Figure 3 is a three-dimensional schematic diagram of the self-lubricating tapered pin removal tool in Example 1 (angle 1);

[0023] Figure 4 is a three-dimensional schematic diagram of the self-lubricating tapered pin removal tool in Example 1 (angle 2);

[0024] Figure 5A is a schematic diagram of a support portion of the self-lubricating tapered pin removal tool and a fixed object support in Example 1;

[0025] Figure 5B is a schematic diagram of a support portion of a self-lubricating tapered pin removal tool and a fixed object support in a variation of Example 1;

[0026] Figure 5C is a schematic diagram of a support portion of a self-lubricating tapered pin removal tool and a fixed object support in another variation of Example 1;

[0027] Figure 6 It is a schematic diagram of a lever abstracted from a static equilibrium state of the main rod in the use process of Example 1;

[0028] Figure 7 is a schematic diagram of the self-lubricating tapered pin removal tool in Example 1 in a folded state;

[0029] Figure 8 Schematic diagram of the impact tool, the self-lubricating tapered pin and the base in Example 2. DETAILED DESCRIPTION

[0030] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0031] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0032] Embodiment 1:

[0033] See also Figure 1-2As shown, as a preferred embodiment of the utility model, a self-lubricating tapered pin disassembly tool is provided, which is used to disassemble the self-lubricating tapered pin 4. As an example, the self-lubricating tapered pin 4 is inserted and fixed on the base 5. The disassembly tool of this embodiment, in layman's terms, is similar to a screwdriver, which is used to pull the self-lubricating tapered pin 4 out of the base 5 to which it is fixed. Specifically, the disassembly tool includes a main rod 1 and a pull rod 2 pivotally connected to the main rod 1. The pull rod 2 includes a first external thread section 21 arranged at its free end. The first external thread section 21 is used to be threadedly connected with a screw hole provided on the self-lubricating tapered pin 4 (generally speaking, the self-lubricating tapered pin is provided with a threaded weight-reducing hole, i.e., the screw hole referred to in this example). The main rod 1 is provided with a force-applying portion 11 for external force application and a support portion 12 for forming a fulcrum. Taking this embodiment as an example, the force-applying portion 11 is arranged at the rear of the main rod 1, which is implemented as a handle structure for the user to hold and apply force. The support part 12 is arranged at the front end of the main rod 1, and is used to support the base 5 or other objects fixed relative to the base 5, so as to form a swing fulcrum for the main rod 1. The position where the pull rod 2 and the main rod 1 are pivoted is the first pivot point A, and the force applying part 11 and the support part 12 are arranged on both sides of the first pivot point A. Such an arrangement makes the main rod 1 form a force-saving lever structure. Figure 6 , is a lever schematic diagram abstracting a static equilibrium state of the main rod 1 during use, wherein F1 is the force applied by the outside to the force applying part 11, and F2 is the force applied by the self-lubricating tapered pin 4 to the main rod 1 through the pull rod 2. Due to the difference in the length of the lever arm, F2 is greater than F1, achieving a labor-saving effect. The pulling force of the pull rod 2 on the self-lubricating tapered pin 4 is the reaction force of F2.

[0034] The disassembly tool of this embodiment can be used in various disassembly scenarios conveniently and quickly, and can save labor. The disassembly tool requires a small space, is easy to install and operate, and can be well used even in narrow spaces.

[0035] The force-applying part 11 can be further improved to enhance the force-applying effect, for example, an anti-slip material, such as a rubber sleeve, can be provided on the force-applying part 11. A structure that facilitates force application can also be provided on the force-applying part 11, for example, in this embodiment, a curved surface profile that conforms to finger grip is provided on the force-applying part 11. A hanging ring can also be provided on the force-applying part 11 to facilitate mechanical force application on the force-applying part 11.

[0036] It can be seen that in actual use, it is important to find a fixed point for the support portion 12 to support. In order to improve the applicability of the support portion 12, the support portion 12 of this embodiment includes an extension portion 3 pivotally connected to the main rod 11. By pivoting the extension portion 3 relative to the main rod 11, the extension portion 3 can be pivoted to a position intersecting with the main rod 11, thereby extending the support portion 12. Since the pull rod 2 is screwed to the self-lubricating tapered pin 4, in general, the main rod 1 is located above the self-lubricating tapered pin 4 and is at a certain distance from the base 5. After the extension portion 3 is set, even if there is no suitable fixed point on the height line of the main rod 1 for the support portion 12 to support, the support portion 12 and the base 5 can be supported by the extension portion 3, which greatly improves the applicability of the disassembly tool.

[0037] In other embodiments, the extension part 3 may also be fixedly connected to the main rod 11, and the extension part 3 in this case may be regarded as a part of the main rod 11. Moreover, in this embodiment, the fixed connection between the extension part 3 and the main rod 11 is preferably detachable, and the extension part 3 may include extension parts 3 of various specifications, such as extension parts 3 of various lengths, as a series of accessories, and the extension parts 3 of various specifications are installed to expand the support range of the support part 12 to match different working environments.

[0038] Compared with the fixed connection scheme, the pivot connection between the extension part 3 and the main rod 11 in this embodiment can make the support part 12 have a larger and more flexible support range through the relative rotation of the extension part 3 and the main rod 11 on the basis of lightweight and miniaturized structure. Similarly, the pivot connection between the extension part 3 and the main rod 1 can also be configured to be detachable, for example, the pivot axis of the two is a screw screwed on the main rod 1. Then the extension part 3 is replaceable, and the extension part 3 can include a variety of different specifications, such as extension parts 3 of different lengths as a series of accessories, and different support lengths of the support part 12 can be achieved by replacing extension parts 3 of different lengths.

[0039] The extension part 3 and the main rod 1 are pivoted at the second pivot point B. In this embodiment, the extension part 3 is provided with two support interfaces 31 and 32 with different spacings from the second pivot point B. The support interfaces 31 and 32 are L-shaped grooves, and the support interfaces 31 and 32 are connected in a stepped manner. The support interfaces 31 and 32 of this shape can be better crimped on the edge of a fixed object such as the base 5. The support interfaces 31 and 32 have different spacings relative to the second pivot point B, forming a multi-level optional support structure. In the face of different working environments, the support interface 31 or the support interface 32 can be flexibly selected to achieve support. On this basis, three, four, or more support interfaces can be provided.

[0040] Figure 5A A schematic diagram is shown in which the support portion 12 of this embodiment is supported downwardly by the extension portion 3 against a fixed object 6 at a height lower than the main rod 1 . Figure 5B and Figure 5C Two variations of this embodiment are shown. Figure 5B The support portion 12C is the front end of the main rod 1. At this time, if there is a fixed object 6C that is highly close to the main rod 1 in the working environment, the support portion 12C can also form a fulcrum. In this embodiment, the extension portion 3 is removed to simplify it. Figure 5C The free end of the extension part 3D is provided with a hook structure. This type of support part 12D can be hooked with a fixed object 6D whose height is higher than the main rod 1, so that the support part 12D forms a fulcrum. The fixed objects 6, 6C, and 6D are fixed relative to the base 5 and can be selected by the user in the working environment. It can be seen that the provision of the extension part 3 can expand the application range of the support part 12.

[0041] The extension portion 3 may also be provided with anti-slip material, such as a rubber coating on the support interfaces 31 and 32, to improve the support reliability thereof.

[0042] The pivot connection between the pull rod 2 and the main rod 1 can also be configured to be detachable, for example, the pivot axis of the two is a screw threaded on the main rod 1. Then the pull rod 2 is replaceable, so that the pull rod 2 can include multiple specifications. For example, the pull rod 2 is a series of accessories with multiple different lengths, and different connection lengths between the main rod 1 and the self-lubricating tapered pin 4 can be achieved by replacing the pull rods 2 of different lengths; or the pull rod 2 is a series of accessories with multiple different outer diameters of the first external thread section 21, and the pull rods 2 with different outer diameters of the first external thread section 21 are replaced to match the screw holes provided on different self-lubricating tapered pins 4.

[0043] In another embodiment, the distance between the first pivot point A and the support portion 12 is adjustable, thereby further improving the flexibility of the disassembly tool. Figure 3 A strip hole 13 is provided on the main rod 1, and the restraining end of the pull rod 2 is inserted into the strip hole 13. A plurality of pivot holes can be provided within the length range of the strip hole 13, and the distance between the first pivot point A and the supporting portion 12 can be adjusted by pivoting the pull rod 2 in different pivot holes.

[0044] When the disassembly tool of this embodiment is in use, the extension part 3 and the pull rod 2 are both unfolded relative to the main rod 1. Since the extension part 3 and the pull rod 2 are both pivotally connected to the main rod 1, the extension part 3 and the pull rod 2 can be folded up when not in use. Figure 7 To further achieve the folding and storage effect of the extension part 3 relative to the main rod 1, as shown in FIG. Figure 4In this embodiment, a clearance groove 31 is provided on the extension part 3, and the clearance groove 31 allows the main rod 1 to be rotated and placed therein, so as to allow the extension part 3 to pivot from an unfolded state relative to the main rod 1 to a folded state folded in the main rod 1. On the contrary, this clearance groove structure can also be provided on the main rod 1. In addition, a receiving cavity 14 is provided on the main rod 1, and the receiving cavity 14 allows the pull rod 2 to be rotated and placed therein, so as to allow the pull rod 2 to pivot from an unfolded state relative to the main rod 1 to a folded state folded in the main rod 1. The clearance groove 31 and the receiving cavity 14 are not necessary, because the extension part 3 and the pull rod 2 themselves can pivot relative to the main rod 1 to a position with a smaller angle with the main rod 1, but the provision of the clearance groove 31 and the receiving cavity 14 can make the main rod 1, the extension part 3 and the pull rod 2 more compact in the folded state. This design of the present embodiment not only improves the portability of the tool, but also greatly increases its practicality. Whether professional maintenance personnel or ordinary users, they can easily take this tool to wherever they need it without worrying about it taking up too much space or being inconvenient to carry.

[0045] Embodiment 2:

[0046] Based on the self-lubricating tapered pin removal tool of Example 1, this embodiment further provides a self-lubricating tapered pin removal tool kit, including the self-lubricating tapered pin removal tool of Example 1, in addition, Figure 8 , and also includes an impact tool 9, which includes a sliding rod 7, and an impact slider 8 is slidably connected to the sliding rod 7. A second external thread section (not shown) is provided at one end of the sliding rod 7 for being screwed to a screw hole provided on the self-lubricating tapered pin 4, and a stopper 10 is fixed at the other end of the sliding rod 7 to prevent the impact slider 8 from being separated from the sliding rod 7. The self-lubricating tapered pin 4 can be impacted by sliding the impact slider 8. Since the contact surface between the self-lubricating tapered pin 4 and the base 5 is usually conical, the friction between them is very large, and it is difficult to separate them directly. The oscillating impact force generated by the impact tool 9 is used to release the tightening force between the self-lubricating tapered pin 4 and the base 5, which can effectively break the static friction between the two, so that a certain amount of looseness is generated between the self-lubricating tapered pin 4 and the base 5 that were originally tightly connected. When the impact slider 8 rebounds, it will collide with the stopper 10 at the tail, so that it is transmitted to the self-lubricating tapered pin 4 again to generate an impact.

[0047] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes made to the present invention in form and detail, without departing from the spirit and scope of the present invention as defined in the appended claims, shall fall within the scope of protection of the present invention.

Claims

1. A self-lubricating tapered pin removal tool, used for removing a self-lubricating tapered pin fixed on a substrate, characterized in that: It includes a main rod and a pull rod pivotally connected to the main rod, the pull rod includes a first external thread section, the first external thread section is used to be threadedly connected to a screw hole provided on a self-lubricating tapered pin, the main rod is provided with a force-applying portion for external force application and a supporting portion for forming a fulcrum, it is defined that the pull rod and the main rod are pivotally connected at a first pivot point, and the force-applying portion and the supporting portion are arranged on both sides of the first pivot point.

2. The self-lubricating tapered pin removal tool according to claim 1, characterized in that: The support portion includes an extension portion pivotally connected to the main rod, and the extension portion is implemented to be able to relatively pivot to a position intersecting with the main rod.

3. The self-lubricating tapered pin removal tool according to claim 2, characterized in that: It is defined that the extension part and the main rod are pivotally connected at a second pivot point, and the extension part is provided with at least two support interfaces with different distances from the second pivot point.

4. The self-lubricating tapered pin removal tool according to claim 2, characterized in that: The pivot connection between the extension part and the main rod is detachable.

5. The self-lubricating tapered pin removal tool according to claim 4, characterized in that: The extension part is a series of accessories with a variety of different lengths, and different supporting lengths of the supporting part can be achieved by replacing the extension parts with different lengths.

6. The self-lubricating tapered pin removal tool according to claim 2, characterized in that: The main rod and / or the extension part are provided with a giveway groove allowing the extension part to pivot from an expanded state relative to the main rod to a folded state retracted into the main rod; the main rod is provided with a accommodating cavity allowing the pull rod to pivot from an expanded state relative to the main rod to a folded state retracted into the main rod.

7. The self-lubricating tapered pin removal tool according to claim 1, characterized in that: The pivot connection between the pull rod and the main rod is detachable.

8. The self-lubricating tapered pin removal tool according to claim 7, characterized in that: The pull rod is a series of accessories with a variety of different lengths, and different connection lengths between the main rod and the self-lubricating tapered pin can be achieved by replacing pull rods of different lengths; or the pull rod is a series of accessories with a variety of different outer diameters of the first external thread section, and different screw holes on the self-lubricating tapered pins can be matched by replacing pull rods with different outer diameters of the first external thread section.

9. The self-lubricating tapered pin removal tool according to claim 7, characterized in that: The distance between the first pivot point and the supporting portion is adjustable.

10. A self-lubricating tapered pin removal tool kit, used for removing a self-lubricating tapered pin fixed on a substrate, characterized in that: It includes a self-lubricating tapered pin removal tool as described in any one of claims 1 to 9, and also includes an impact tool, the impact tool includes a sliding rod, one end of the sliding rod is provided with a second external thread section, which is used to be threadedly connected to a screw hole provided on the self-lubricating tapered pin, and an impact slider is slidably connected to the sliding rod for applying impact force to the self-lubricating tapered pin.

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