Tool for installing bolt of frequency modulation wheel of low-speed diesel engine

Abstract

The utility model relates to the technical field of bolt installation tools, and discloses a tool for installing a bolt of a frequency modulation wheel of a low-speed diesel engine, which comprises a hollow inner hexagonal cylindrical sleeve, a round flange and a hexagonal steel plate, the round flange is assembled at the top of the hollow inner hexagonal cylindrical sleeve, and the hexagonal steel plate is connected with the round flange. The outer portion of the hexagonal steel plate is connected with a long-handle handle, the hexagonal steel plate is connected with the round flange through a seat plate, the two ends of the long-handle handle are both connected with extension arms in a sliding mode, and short grooves are evenly formed in the outer portion of the hollow inner hexagonal cylindrical sleeve. According to the tool for installing the bolt of the frequency modulation wheel of the low-speed diesel engine, the problems that efficiency is low, time and labor are consumed, operation is repeated, and mental fatigue of workers on site is extremely likely to be caused are solved, meanwhile, the length of the long-handle handle can be rapidly extended and retracted through the additionally-arranged extension jib and the additionally-arranged limiting mechanism, and therefore the applicability of the tool is greatly improved, and the tool is suitable for popularization and application. And the use comfort of workers is improved.

Description

Technical Field

[0001] This utility model relates to the field of bolt installation tools, specifically a tool for installing frequency-regulating wheel bolts on low-speed diesel engines. Background Technology

[0002] In the assembly and maintenance of marine low-speed diesel engines, the installation of the frequency tuning wheel bolts is a critical operation. Traditionally, workers manually tighten these bolts using a torque wrench. However, because a set of wheel discs contains numerous bolts, the torque wrench requires constant adjustment of the torque value, resulting in low efficiency, time-consuming, labor-intensive, and repetitive operations. This easily leads to worker fatigue and increases the risk of safety and quality accidents. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a tool for installing frequency-adjusting wheel bolts on low-speed diesel engines. This tool solves the technical problem of requiring constant torque adjustments, which leads to low efficiency, time-consuming and labor-intensive operations, repetitive tasks, and high risk of causing mental fatigue among on-site workers, as well as safety and quality accidents.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a tool for installing frequency-adjustable wheel bolts on a low-speed diesel engine, comprising: a hollow hexagonal cylindrical sleeve, a circular flange, and a hexagonal steel plate. The circular flange is assembled on the top of the hollow hexagonal cylindrical sleeve. The hexagonal steel plate is connected to the circular flange. A long handle is connected to the outside of the hexagonal steel plate. The hexagonal steel plate and the circular flange are connected through a base plate. Extended arms are slidably connected to both ends of the long handle. Short grooves are evenly distributed on the outside of the hollow hexagonal cylindrical sleeve.

[0007] Preferably, a first spring is internally connected to the long handle, and the first spring is slidably connected to the long handle. The first spring can pull the extended arm back to its original position after the movement is completed.

[0008] Preferably, both sides of the long handle are fitted with anti-slip sleeves, and both ends of the long handle are provided with limiting grooves. The anti-slip sleeves make it easy for workers to grip the long handle, and the limiting grooves can work with the limiting mechanism to limit the position of the extended arm.

[0009] Preferably, the extended arm is externally connected to a track block, and the inner cavity of the long handle is provided with a track groove that matches the track block. The track groove is slidably connected to the track block, and the track block can cooperate with the track groove to guide the extended arm, so that the extended arm can move in a straight line during movement.

[0010] Preferably, the extended arm has an internal sliding connection with a limiting mechanism. The limiting mechanism includes a trapezoidal block, and a second spring is connected to both sides of the top of the trapezoidal block. The second spring is slidably connected to the inner cavity of the extended arm. The trapezoidal block can be engaged inside the limiting groove, so that the extended arm can only be pulled in one direction and cannot be retracted to return to its original position.

[0011] Preferably, the top of the trapezoidal block is connected to a cross arm via a bearing seat. The extended arm has a vertical groove on its outside that is adapted to the cross arm. The vertical groove is slidably connected to the cross arm. The top of the cross arm is connected to a top plate. The cross arm can rotate and slide up and down inside the vertical groove. When the cross arm rotates, it will be locked at the top of the vertical groove to prevent the trapezoidal block from returning to its original position.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a tool for installing frequency regulating wheel bolts in low-speed diesel engines, which has the following advantages:

[0014] This tool for installing frequency-adjustable wheel bolts on low-speed diesel engines features a hollow hexagonal cylindrical sleeve, a circular flange, a hexagonal steel plate, a base plate, and a long handle. It can be quickly fitted onto the outside of the bolt and driven until the long handle contacts the protrusion. This eliminates the need for repeated torque adjustments with a torque wrench, avoiding inefficiency, time-consuming and laborious operations that can easily cause worker fatigue. Furthermore, the added extension arm and limiting mechanism allow for rapid extension and retraction of the long handle, significantly improving the device's applicability and enhancing worker comfort. Attached Figure Description

[0015] Figure 1 This is a front view of the present utility model;

[0016] Figure 2 This is a partial schematic diagram of the extended arm of this utility model;

[0017] Figure 3 This is a partial sectional view of the long handle of this utility model;

[0018] Figure 4 This is an external schematic diagram of the limiting mechanism of this utility model;

[0019] Figure 5This is a schematic diagram showing the installation of the wheel disc that needs to be installed inside a marine low-speed diesel engine in the working state, in accordance with the present invention and existing technologies.

[0020] In the diagram: 1. Hollow internal hexagonal cylindrical sleeve; 11. Short groove; 2. Round flange; 3. Hexagonal steel plate; 4. Seat plate; 5. Long handle; 51. Anti-slip sleeve; 52. Limiting groove; 6. Extended arm; 61. Track block; 62. First spring; 7. Limiting mechanism; 71. Trapezoidal block; 72. Second spring; 73. Top plate; 74. Cross arm; 8. Wheel body; 81. Protrusion. 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] This utility model provides a technical solution, please refer to Figure 1 and Figure 2 A tool for installing frequency-adjustable wheel bolts on a low-speed diesel engine includes: a hollow hexagonal cylindrical sleeve 1, a round flange 2, and a hexagonal steel plate 3. The round flange 2 is mounted on the top of the hollow hexagonal cylindrical sleeve 1. The hexagonal steel plate 3 is connected to the round flange 2. A long handle 5 is connected to the outside of the hexagonal steel plate 3. The hexagonal steel plate 3 and the round flange 2 are connected through a base plate 4. Both ends of the long handle 5 are slidably connected to extension arms 6. Short grooves 11 are evenly distributed on the outside of the hollow hexagonal cylindrical sleeve 1.

[0023] The hollow hexagonal cylindrical sleeve 1 can be fitted onto the outside of the bolt. The short groove 11 facilitates the fitting of the hollow hexagonal cylindrical sleeve 1 onto the outside of the bolt. The round flange 2, the hexagonal steel plate 3, and the seat plate 4 facilitate the connection and assembly of the hollow hexagonal cylindrical sleeve 1 with the long handle 5.

[0024] Please see Figure 3 and Figure 4 The long handle 5 is internally connected to a first spring 62, which is slidably connected to the long handle 5. The first spring 62 can pull the extended arm 6 back to its original position after the movement is completed. Anti-slip sleeves 51 are embedded on both sides of the long handle 5. Limiting grooves 52 are opened at both ends of the long handle 5. The anti-slip sleeves 51 make it convenient for the staff to grip the long handle 5. The limiting grooves 52 can cooperate with the limiting mechanism 7 to limit the position of the extended arm 6.

[0025] The extended arm 6 is externally connected to a track block 61. The inner cavity of the long handle 5 is provided with a track groove that is compatible with the track block 61. The track groove is slidably connected to the track block 61. The track block 61 can cooperate with the track groove to guide the extended arm 6, so that the extended arm 6 can move linearly during movement.

[0026] The extended arm 6 is internally slidably connected to a limiting mechanism 7. The limiting mechanism 7 includes a trapezoidal block 71. The top two sides of the trapezoidal block 71 are connected to a second spring 72. The second spring 72 is slidably connected to the inner cavity of the extended arm 6. The trapezoidal block 71 can be engaged inside the limiting groove 52, so that the extended arm 6 can only be pulled in one direction and cannot be retracted to return to its original position.

[0027] The top of the trapezoidal block 71 is connected to a cross arm 74 via a bearing seat. The extended arm 6 has a vertical groove on its outside that is adapted to the cross arm 74. The vertical groove is slidably connected to the cross arm 74. The top of the cross arm 74 is connected to a top plate 73. The cross arm 74 can rotate and slide up and down inside the vertical groove. When the cross arm 74 rotates, it will be locked at the top of the vertical groove, preventing the trapezoidal block 71 from returning to its original position.

[0028] Please see Figure 5 Instruction manual attached Figure 5 The wheel body 8 and the protrusion 81 are common external diagrams of wheel bodies in the prior art. There are at least twenty sets of bolts on the outside of the wheel body 8. In this solution, the hollow hexagonal cylindrical sleeve 1 is fitted on the outside of the bolt that needs to be turned, so that the long handle 5 is perpendicular to the protrusion 81. Then, the long handle 5 is turned so that the long handle 5 fits against the protrusion 81, thereby completing the fixing of the bolt.

[0029] When the length of the long handle 5 needs to be adjusted, the extension arm 6 is pulled out from inside the long handle 5. When the extension arm 6 moves, it will drive the trapezoidal block 71 to move together, so that the trapezoidal block 71 is inserted into the limit groove 52, preventing the extension arm 6 from returning to its original position. At the same time, when the extension arm 6 needs to return to its original position, the trapezoidal block 71 is pulled up and rotated. At this time, the trapezoidal block 71 is restricted by the cross arm 74 and cannot return to its original position. The extension arm 6 returns to its original position by the pull of the first spring 62, thus completing the retraction of the extension arm 6.

[0030] By adding a hollow hexagonal cylindrical sleeve 1, a round flange 2, a hexagonal steel plate 3, a seat plate 4, and a long handle 5, it can be quickly fitted onto the outside of the bolt and driven until the long handle 5 contacts the protrusion 81. This eliminates the need for repeated torque adjustments with a torque wrench, which is inefficient, time-consuming, labor-intensive, and prone to causing mental fatigue for on-site workers. Furthermore, the addition of an extension arm 6 and a limiting mechanism 7 allows the long handle 5 to be quickly extended and retracted, thereby significantly improving the applicability of the device and enhancing the comfort of the operators.

[0031] 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.

[0032] 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 tool for installing frequency regulating wheel bolts on low-speed diesel engines, comprising: A hollow hexagonal cylindrical sleeve (1), a round flange (2), and a hexagonal steel plate (3) are provided. The round flange (2) is mounted on the top of the hollow hexagonal cylindrical sleeve (1), and the hexagonal steel plate (3) is connected to the round flange (2). The hexagonal steel plate (3) is connected to the outside of a long handle (5). The hexagonal steel plate (3) is connected to the round flange (2) through a seat plate (4). Both ends of the long handle (5) are slidably connected to extended arms (6). Short grooves (11) are evenly distributed on the outside of the hollow hexagonal cylindrical sleeve (1).

2. The tool for installing frequency regulating wheel bolts in a low-speed diesel engine according to claim 1, characterized in that: The long handle (5) is internally connected to a first spring (62), which is slidably connected to the long handle (5).

3. The tool for installing frequency regulating wheel bolts in a low-speed diesel engine according to claim 1, characterized in that: Both sides of the long handle (5) are fitted with anti-slip sleeves (51), and both ends of the long handle (5) are provided with limit grooves (52).

4. The tool for installing frequency regulating wheel bolts in a low-speed diesel engine according to claim 1, characterized in that: The extended arm (6) is externally connected to a track block (61), and the inner cavity of the long handle (5) is provided with a track groove that is compatible with the track block (61). The track groove is slidably connected to the track block (61).

5. A tool for installing frequency regulating wheel bolts in a low-speed diesel engine according to claim 1, characterized in that: The extended arm (6) is internally slidably connected to a limiting mechanism (7), which includes a trapezoidal block (71). The top two sides of the trapezoidal block (71) are connected to a second spring (72), which is slidably connected to the inner cavity of the extended arm (6).

6. A tool for installing frequency regulating wheel bolts in a low-speed diesel engine according to claim 5, characterized in that: The top of the trapezoidal block (71) is connected to a cross arm (74) via a bearing seat. The extended arm (6) has a vertical groove on its outside that is adapted to the cross arm (74). The vertical groove is slidably connected to the cross arm (74). The top of the cross arm (74) is connected to a top plate (73).

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