Turning structure based on engine fan cushion block
By using a turning gear structure based on an engine fan pad and utilizing through holes to cooperate with the turning gear rod, the problem of cumbersome operation of traditional turning gear equipment in a space-constrained environment is solved, and convenient and efficient engine turning gear operation is achieved.
Patent Information
- Application Number
- CN202520445741.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-03-13
AI Technical Summary
Existing cranking equipment is cumbersome to operate, time-consuming and labor-intensive, and it is difficult to achieve precise control, especially in environments with limited space, which affects the efficiency of engine maintenance and repair.
A cranking structure based on an engine fan pad is designed. The cranking rod is engaged with the through hole on the fan pad. The cranking operation is achieved by inserting the rod into the through hole of the fan pad. The handle is made of high-strength alloy material and ergonomic design to ensure convenient operation and force control.
It simplifies the preparation time for turning the engine, improves the convenience and accuracy of operation, is suitable for space-constrained environments, reduces labor costs, and improves the efficiency of engine maintenance and repair.
Smart Images

Figure CN223647920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine maintenance equipment technology, specifically to a turntable structure based on an engine fan pad. Background Technology
[0002] In the routine maintenance, repair and debugging of the engine, cranking is a crucial operation. Traditional cranking methods, such as using a wrench to directly turn the crankshaft pulley or using complex large cranking equipment, have many drawbacks. In some engine installation environments with limited space, large cranking equipment is difficult to use. Manual wrench operation is not only laborious, but also difficult to control the cranking angle and force precisely, and can easily damage internal engine components due to improper operation.
[0003] Furthermore, existing methods for turning the engine over are insufficient in terms of efficiency and convenience, especially when frequent turning is required. Traditional methods are time-consuming, severely impacting the progress of maintenance and repair work. Therefore, there is an urgent need for a new type of turning device that can improve the efficiency and convenience of turning the engine over while ensuring safety and accuracy. Utility Model Content
[0004] The technical problem this invention aims to solve is that existing turning equipment is cumbersome, time-consuming, and labor-intensive to operate.
[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is to provide a cranking structure based on an engine fan pad, including a shock absorber, a fan pad, and a fan assembly. The fan pad is connected between the shock absorber and the fan assembly. It also includes a cranking rod. The side of the fan pad has a through hole, the axis of which is perpendicular to the central axis of the fan pad. The diameter of the cranking rod is the same as the diameter of the through hole. One end of the cranking rod is a plug that is inserted into the through hole of the fan pad, and the other end is a handle.
[0006] Optionally, the handle is provided with knurled or non-slip rubber pads.
[0007] In summary, this utility model utilizes the existing fan pad structure of the engine, eliminating the need for additional complex installation and disassembly steps. Simply inserting the turning rod into the through hole allows for turning operations. Compared to traditional turning methods, it significantly saves preparation time and operational difficulty, making it particularly suitable for engine maintenance scenarios with limited space. With its simple structure, low manufacturing cost, and convenient operation, it can effectively shorten engine maintenance and repair time, reduce labor costs, and improve work efficiency, demonstrating significant cost-effectiveness. Attached Figure Description
[0008] Figure 1 This is a schematic diagram of the fan pad installation in this utility model;
[0009] Figure 2 This is a schematic diagram of the fan pad structure in this utility model;
[0010] Figure 3 This is a schematic diagram of the center plate lever structure of this utility model;
[0011] In the diagram: 1. Shock absorber; 2. Fan pad; 3. Fan assembly; 4. Turning lever; 41. Handle. Detailed Implementation
[0012] The following combination Figure 1-3 The present invention will be described in further detail below.
[0013] This utility model discloses a turnout structure based on an engine fan pad, referring to... Figures 1 to 3 It includes a shock absorber 1, a fan pad 2 and a fan assembly 3. The fan pad 2 is connected between the shock absorber 1 and the fan assembly 3. It also includes a turning rod 4. The side of the fan pad 2 is provided with a through hole. The axis of the through hole is perpendicular to the central axis of the fan pad 2. The diameter of the turning rod 4 is the same as the diameter of the through hole. One end of the turning rod 4 is a plug that is inserted into the through hole of the fan pad 2, and the other end is a handle 41. The handle 41 is provided with a knurled or anti-slip rubber pad.
[0014] In this invention, the diameter and shape of the through hole on the fan pad 2 are precisely designed to fit specific turning tools. The fan pad 2 is made of high-strength, wear-resistant alloy material to ensure that it will not deform or be damaged when subjected to turning force, while ensuring the stability of the connection with the engine. One end of the turning rod 4 is a plug that can be tightly inserted into the through hole to achieve a gapless fit, ensuring stable and reliable force transmission during turning. The other end is equipped with a handle 41, which is ergonomically designed with anti-slip texture on the surface for easy gripping and force application by the operator. The length of the handle 41 is optimized to provide a suitable lever arm, allowing the operator to easily turn the turning rod, thereby driving the engine crankshaft to rotate.
[0015] In the manufacturing process of this utility model, a suitable high-strength alloy material is selected according to the engine model and design requirements. The fan pad 2 is manufactured through precision casting or machining. During the manufacturing process, the dimensional accuracy of the fan pad 2 is strictly controlled to ensure a good fit with the crankshaft lever 4. According to the design requirements, high-quality steel is used to manufacture the crankshaft lever 4 to ensure that the crankshaft lever 4 has sufficient strength and toughness. The plug of the crankshaft lever 4 is precision machined so that its size is completely matched with the through hole size of the fan pad 2. The surface of the plug of the crankshaft lever 4 is quenched to improve its wear resistance and hardness. The handle 41 of the crankshaft lever 4 is ergonomically designed and optimized. The length and shape of the handle 41 are determined according to the principles of human biomechanics. The surface of the handle 41 is knurled or coated with anti-slip rubber to increase the friction when the operator holds it and prevent slippage during cranking.
[0016] During engine assembly or maintenance, the manufactured fan pad 2 is accurately installed in the designated position on the engine and fixed with high-strength bolts or other connection methods to ensure that the connection between the fan pad 2 and the engine is firm and reliable and can withstand the torque generated during turning.
[0017] When using this utility model:
[0018] First, stop the engine and ensure it is in a safe condition. Close all relevant power sources and valves. Inspect the working environment around the engine to ensure there are no obstructions to the turning operation. Then, accurately insert one end of the turning lever 4 into the through hole of the fan pad 2 on the side of the engine, ensuring that the plug fits tightly into the through hole.
[0019] Then, the operator holds the handle 41 of the crankshaft lever 4 and slowly and evenly rotates the crankshaft lever 4 clockwise or counterclockwise according to the crankshaft requirements. Through the cooperation between the crankshaft lever 4 and the fan pad 2, the torque applied by the operator is transmitted to the engine crankshaft, thereby realizing the crankshaft operation of the engine. During the crankshaft operation, the rotation can be stopped at any time as needed to check or adjust the internal engine components. Through the carefully designed cooperation between the crankshaft lever 4 and the through hole of the fan pad 2, precise control of the crankshaft angle and force can be achieved. The operator can slowly and steadily rotate the engine crankshaft according to actual needs, avoiding damage to the internal engine components due to excessive force or loss of angle control.
[0020] After completing the turning operation, pull the turning rod 4 out of the through hole of the fan pad 2, properly store the turning tool, and perform necessary inspections and records on the engine to provide a basis for subsequent maintenance or repair work.
[0021] The cranking device provided by this utility model can be designed and adjusted in a targeted manner according to the size and structural characteristics of the fan pad 2 of different engine models. It has strong versatility and adaptability. Whether it is a small car engine or a large industrial engine, efficient cranking operation can be achieved by reasonably designing the cranking rod 4 and the through hole of the fan pad 2.
[0022] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A crankshaft structure based on an engine fan pad, comprising a shock absorber (1), a fan pad (2), and a fan assembly (3), wherein the fan pad (2) is connected between the shock absorber (1) and the fan assembly (3), characterized in that, It also includes a turning rod (4), the side of the fan pad (2) is provided with a through hole, the axis of the through hole is perpendicular to the central axis of the fan pad (2), the diameter of the turning rod (4) is the same as the diameter of the through hole, one end of the turning rod (4) is a plug that is inserted into the through hole of the fan pad (2), and the other end is a handle (41).
2. The turning gear structure based on the engine fan pad according to claim 1, characterized in that, The handle (41) is provided with knurled or anti-slip rubber pads.