A simple and convenient locking nut mounting and dismounting tool

Abstract

This utility model relates to the field of loading and unloading tools, providing a simple and convenient tool for loading and unloading locking nuts. It includes an axle frame, a support base, and a locking wrench. The support base is fixed to the side wall of the axle frame, and a limiting hole is formed inside the support base. A journal is placed inside the limiting hole. This utility model utilizes a locking wrench structure that can be fitted onto the outside of the journal. Its outer wall has four pins that fit into four slots on the outer wall of the locking nut. This allows for precise connection and stable transmission between the locking wrench and the locking nut. The operator can easily turn the large-sized locking nut located inside the journal by gripping the handle and rotating the locking wrench, firmly fixing it to the threaded part of the journal. This overcomes the limitations of conventional wrenches, which are restricted by size and operating space, making it impossible to effectively operate the locking nut in this position, thus achieving convenient installation. It reduces installation difficulty, improves installation efficiency and stability, and ensures the installation quality of the locking nut.

Description

Technical Field

[0001] This utility model relates to the field of loading and unloading tools, and in particular to a simple and convenient tool for loading and unloading locking nuts. Background Technology

[0002] In the assembly and maintenance of journals and lock nuts, situations often arise where the lock nut is large and its installation position is inside the bushing. Due to the limited installation space and large size of the lock nut, conventional wrenches are difficult to use. On the one hand, they cannot reach deep into the bushing to form an effective fit with the lock nut. On the other hand, even if they can reach it, the small operating space and insufficient lever arm prevent the lock nut from being tightened smoothly.

[0003] In this situation, not only will the installation of the locking nut be time-consuming and laborious, making it difficult to guarantee the firmness and accuracy of the installation, but it will also cause great inconvenience to subsequent equipment maintenance, component replacement and other work, affecting the overall work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a simple and convenient tool for installing and removing locking nuts. By using this device, the above-mentioned problems can be solved.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a simple and convenient tool for installing and removing locking nuts, including an axle frame, a support base, and a locking wrench. The support base is fixed to the side wall of the axle frame. A limiting hole is opened inside the support base. A journal is placed inside the limiting hole. A bushing is sleeved on the outside of the journal. Bearings are set at the front and rear ends inside the bushing. The bearings are sleeved on the outside of the journal. A locking nut is set at the front part of the bearing inside the bushing. The locking nut is sleeved on the outside of the journal. A threaded part is set on the outside of the journal. The threaded part is located on the inside of the locking nut. A groove is opened on the outer side wall of the locking nut. A locking wrench is set at the front end of the locking nut. A pin is engaged inside the groove. The pin is fixed on the outer side wall of the locking wrench. A handle is set at the rear end of the locking wrench.

[0006] Preferably, a stop block is provided at the rear of the rear bearing inside the bushing, and the stop block is fixed to the outside of the journal.

[0007] Preferably, the front end of the support base is fixed with a mating ring, and the rear end of the bushing is provided with a mating groove.

[0008] Preferably, the mating groove is an annular groove, and the mating ring matches the size of the mating groove, so that the mating ring can be inserted into the mating groove.

[0009] Preferably, the inner side of the locking nut is provided with an internal thread, and the journal is threadedly connected to the locking nut through the threaded portion.

[0010] Preferably, there are four sets of slots, which are evenly distributed on the outer side wall of the locking nut. The number of pins is the same as the number of slots, and the pins are evenly distributed on the outer side wall of the locking wrench.

[0011] Preferably, the locking wrench is hollow inside, and the inner diameter of the locking wrench is larger than the outer diameter of the trunnion at the front of the journal.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a simple and convenient tool for installing and removing locking nuts. It features a locking wrench structure that fits over the journal, with four pins on its outer wall that fit into four slots on the outer wall of the locking nut. This allows for precise connection and stable transmission between the locking wrench and the locking nut. The operator can easily tighten the large-sized locking nut located inside the journal by gripping the handle and rotating the locking wrench, firmly fixing it to the threaded portion of the journal. This overcomes the limitations of conventional wrenches, which are restricted by size and operating space, making it impossible to effectively operate the locking nut in this position, thus achieving convenient installation. It reduces installation difficulty, improves installation efficiency and stability, and ensures the installation quality of the locking nut.

[0014] 2. This utility model provides a simple and convenient tool for installing and removing lock nuts. Similar to the installation process, it utilizes the engagement of a locking wrench's pin with the lock nut's groove to achieve connection. The operator holds the handle and rotates the locking wrench in the opposite direction, allowing the lock nut to easily separate from the threaded portion of the journal. This solves the problem of conventional wrenches being unable to disassemble large lock nuts located inside bushings, achieving efficient disassembly. It simplifies the disassembly process, improves disassembly efficiency, and facilitates subsequent maintenance or component replacement. Attached Figure Description

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

[0016] Figure 2 This is a side view of the structural cross-section of this utility model;

[0017] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a partial structural exploded view of the present invention;

[0019] Figure 5 This is a schematic diagram of the disassembly component structure of this utility model.

[0020] The following are the annotations in the figure: 1. Axle bracket; 2. Support seat; 21. Limiting hole; 22. Connecting ring; 3. Journal; 31. Threaded part; 32. Abutment block; 4. Bushing; 41. Connecting groove; 42. Bearing; 5. Locking wrench; 51. Handle; 52. Pin block; 6. Locking nut; 61. Slot. Detailed Implementation

[0021] 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.

[0022] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings.

[0023] Combination Figures 1 to 5 As shown, this utility model discloses a simple and convenient tool for installing and removing locking nuts, including an axle frame 1, a support base 2, and a locking wrench 5. The support base 2 is fixed to the side wall of the axle frame 1. The support base 2 has a limiting hole 21 inside, and a journal 3 is placed inside the limiting hole 21. A bushing 4 is sleeved on the outside of the journal 3. Bearings 42 are provided at the front and rear ends inside the bushing 4. The bearings 42 are sleeved on the outside of the journal 3. A locking nut 6 is provided in front of the bearing 42 inside the bushing 4. The locking nut 6 is sleeved on the outside of the journal 3. A threaded part 31 is provided on the outside of the journal 3. The threaded part 31 is located on the inside of the locking nut 6. A groove 61 is provided on the outer side wall of the locking nut 6. A locking wrench 5 is provided at the front end of the locking nut 6. A pin 52 is engaged inside the groove 61. The pin 52 is fixed on the outer side wall of the locking wrench 5. A handle 51 is provided at the rear end of the locking wrench 5.

[0024] A stop block 32 is provided at the rear of the rear bearing 42 inside the bushing 4, and the stop block 32 is fixed to the outside of the journal 3.

[0025] The front end of the support base 2 is fixed with a docking ring 22, and the rear end of the bushing 4 is provided with a docking groove 41.

[0026] The mating groove 41 is an annular groove, and the mating ring 22 is matched with the size of the mating groove 41, so that the mating ring 22 can be inserted into the mating groove 41.

[0027] The inner side of the locking nut 6 is provided with internal threads, and the journal 3 is threadedly connected to the locking nut 6 through the threaded part 31.

[0028] The slots 61 are provided in four sets, and the four sets of slots 61 are evenly distributed on the outer side wall of the locking nut 6. The number of pins 52 is the same as that of the slots 61, and the pins 52 are evenly distributed on the outer side wall of the locking wrench 5.

[0029] The locking wrench 5 is hollow inside, and the inner diameter of the locking wrench 5 is larger than the outer diameter of the trunnion at the front of the journal 3.

[0030] Working principle: First, insert journal 3 into limiting hole 21 to limit journal 3. Next, put first bearing 42 on the outside of journal 3, and then put bushing 4 on the outside of journal 3 and bearing 42, using bushing 4 to abut against bearing 42, so that bearing 42 and abutment 32 fit tightly. Then, put second bearing 42 on journal 3, so that it moves into bushing 4. Then, put lock nut 6 on journal 3 and screw it into threaded part 31 to pre-fix lock nut 6.

[0031] When installing the locking nut 6, place the locking wrench 5 over the journal 3, aligning and engaging the four pins 52 on the outer wall of the locking wrench 5 with the four slots 61 on the outer wall of the locking nut 6. At this point, the locking wrench 5 is connected to the locking nut 6. By gripping the handle 51, the locking wrench 5 is rotated, thereby turning the locking nut 6 and fixing it onto the threaded portion 31 of the journal 3. This completes the installation of the locking nut 6.

[0032] When removing the lock nut 6, follow the same method as when installing it. Hold the handle 51 and push the lock wrench 5 in the opposite direction to rotate it, thereby turning the lock nut 6 and separating it from the threaded part 31 of the journal 3. This completes the removal of the lock nut 6.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A simple and convenient tool for installing and removing locking nuts, comprising an axle bracket (1), a support base (2), and a locking wrench (5), characterized in that: The axle frame (1) has a support base (2) fixed to its side wall. The support base (2) has a limiting hole (21) inside. A journal (3) is placed inside the limiting hole (21). A bushing (4) is fitted on the outside of the journal (3). Bearings (42) are provided at the front and rear ends inside the bushing (4). The bearings (42) are fitted on the outside of the journal (3). A locking nut (6) is provided at the front of the bearing (42) inside the bushing (4). The locking nut (6) is fitted on the front end of the bearing (42). Outside the journal (3), a threaded portion (31) is provided on the outside of the journal (3). The threaded portion (31) is located inside the locking nut (6). A groove (61) is provided on the outer side wall of the locking nut (6). A locking wrench (5) is provided at the front end of the locking nut (6). A pin block (52) is engaged inside the groove (61). The pin block (52) is fixed on the outer side wall of the locking wrench (5). A handle (51) is provided at the rear end of the locking wrench (5).

2. The simple and convenient locking nut installation and removal tool according to claim 1, characterized in that: The rear end bearing (42) inside the bushing (4) is provided with a stop block (32), which is fixed to the outside of the journal (3).

3. The simple and convenient locking nut installation and removal tool according to claim 1, characterized in that: The front end of the support base (2) is fixed with a docking ring (22), and the rear end of the bushing (4) is provided with a docking groove (41).

4. The simple and convenient locking nut installation and removal tool according to claim 3, characterized in that: The docking groove (41) is an annular groove, and the docking ring (22) matches the size of the docking groove (41). The docking ring (22) can be inserted into the docking groove (41).

5. The simple and convenient locking nut installation and removal tool according to claim 1, characterized in that: The locking nut (6) has an internal thread on its inner side, and the journal (3) is threadedly connected to the locking nut (6) through the threaded part (31).

6. The simple and convenient locking nut installation and removal tool according to claim 1, characterized in that: The slots (61) are provided in four sets, and the four sets of slots (61) are evenly distributed on the outer side wall of the locking nut (6). The number of pins (52) is the same as that of the slots (61), and the pins (52) are evenly distributed on the outer side wall of the locking wrench (5).

7. The simple and convenient locking nut installation and removal tool according to claim 1, characterized in that: The locking wrench (5) is hollow inside, and the inner diameter of the locking wrench (5) is larger than the outer diameter of the trunnion at the front of the journal (3).

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