Pull disc labor-saving structure, pull disc and engine

Abstract

The utility model relates to the technical field of diesel engines, and provides a pull disc labor-saving structure, a pull disc and an engine, the pull disc labor-saving structure comprises a cam shaft, an automatic pressure regulating system is installed on the cam shaft, the automatic pressure regulating system comprises a transmission part and a pressure regulating part, and the pressure regulating part and the transmission part are in transmission connection and are both installed on the cam shaft. The transmission component comprises a first balancing weight, a second balancing weight and a reset component, the first balancing weight and the second balancing weight are installed on the cam shaft through rivets, the first balancing weight is in transmission connection with the pressure adjusting piece, and the reset component is installed between the first balancing weight and the second balancing weight. The automatic pressure regulating system has the advantages that by arranging the automatic pressure regulating system, starting of the diesel engine is more labor-saving, the service life of the diesel engine is prolonged, the overall operation efficiency is improved, and the advanced technical level and the wide application prospect in the field of diesel engine design are shown.

Description

Technical Field

[0001] The utility model relates to the technical field of diesel engines, and relates to a pull plate labor-saving structure, a pull plate and an engine. Background Art

[0002] In the current domestic diesel engine market, pull-start technology is a widely used starting mechanism. The core operation of this technology involves the user directly pulling the starter disc to trigger the combustion of fuel, thereby starting the engine. However, this traditional starting method does not integrate a decompression structure, which causes a series of problems and user inconvenience in actual operation. The specific problems are as follows:

[0003] 1. Increased physical labor during starting: Due to the lack of an effective decompression mechanism, when a user tries to start a diesel engine, the process of pulling the starter disc becomes increasingly difficult as the internal pressure of the engine increases. This direct physical feedback means that the user needs to exert more force to overcome the internal pressure, making the starting process laborious and inconvenient.

[0004] 2. Reduced user experience: As the difficulty of the startup action increases, especially in low temperature environments or when the machine has not been used for a long time, this situation will become more obvious. The user's labor intensity during the startup process increases, which directly affects the user experience, especially for operating environments that require frequent startup of the machine, this inconvenience will be more prominent.

[0005] 3. May increase maintenance costs: For a long time, due to the large force required during the startup process, this not only constitutes a burden on users, but also causes additional wear and tear on the startup disk and related startup mechanisms, which may increase the maintenance cost of the machine and reduce its overall life.

[0006] 4. Low user-friendliness for novice users: For unfamiliar or weak users, the high-intensity startup operation may pose a greater challenge, thus limiting the popularity and market acceptance of the product. Utility Model Content

[0007] In view of the above technical problems existing in the prior art, a pull plate labor-saving structure, a pull plate and an engine are provided.

[0008] The purpose and effect of the utility model are achieved by the following specific technical means:

[0009] In a first aspect, the utility model provides a pull plate labor-saving structure, including a camshaft;

[0010] An automatic pressure regulating system is installed on the camshaft. The automatic pressure regulating system includes a transmission component and a pressure regulating component. The pressure regulating component is transmission-connected to the transmission component and both are installed on the camshaft.

[0011] Optionally, the transmission component includes counterweight block one, counterweight block two and a reset component, wherein counterweight block one and counterweight block two are mounted on the camshaft by rivets, and counterweight block one is transmission-connected to the pressure regulating member, and the reset component is installed between counterweight block one and counterweight block two.

[0012] Optionally, the reset component includes a tension spring, and the tension spring is installed between the first counterweight block and the second counterweight block.

[0013] Optionally, the pressure regulating member includes an adjusting rod, which is mounted on the camshaft and is transmission-connected to a counterweight.

[0014] In the second aspect, the utility model provides a pull plate, characterized in that it includes the above-mentioned pull plate labor-saving structure, a pull plate body, an impeller, a handle and a crankshaft, the handle is rotatably connected to the pull plate body, the impeller is installed on one side of the pull plate body, and a starting disk is installed on the impeller, the starting disk is transmission-connected to the handle, the crankshaft is fixedly connected to the impeller through a semicircular pin, and the camshaft is located on one side of the crankshaft and is transmission-connected through a force transmission component.

[0015] Optionally, the force transmission assembly includes two bevel gears, and the two bevel gears are respectively sleeved and fixed on the crankshaft and the camshaft, and the two bevel gears are meshingly connected.

[0016] In a third aspect, the utility model provides an engine, characterized in that it comprises the above-mentioned pull plate.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The pull-plate labor-saving structure, the pull-plate and the engine, the application of the pull-plate labor-saving structure significantly improves the starting mechanism of the diesel engine, making it more humane and labor-saving. Especially when starting an engine in a low temperature environment or when the engine has not been used for a long time, the technology can effectively reduce the physical burden of the operator and improve the success rate of engine starting. In addition, since the pressure generated in the main box can be automatically eliminated during the engine starting process, thereby reducing the wear of the mechanical parts inside the engine during the engine starting process, the implementation of this technology is expected to reduce the long-term maintenance cost of the engine and extend the engine life.

[0019] To sum up, this application, by setting up an automatic pressure regulating system, not only makes the starting of the diesel engine more labor-saving and extends its service life, but also improves the overall operating efficiency, demonstrating the advanced technical level and broad application prospects in the field of diesel engine design. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall main structure of the utility model;

[0021] Figure 2 It is a side view structural diagram of the camshaft of the utility model;

[0022] Figure 3 It is a schematic diagram of the side cross-sectional structure of the camshaft and the adjusting rod of the utility model.

[0023] Markings in the figure: pull plate body 1, impeller 2, handle 3, crankshaft 4, camshaft 5, bevel gear 6, counterweight block 1 7, adjusting rod 8, tension spring 9, counterweight block 2 10. DETAILED DESCRIPTION

[0024] See also Figure 1-3 , the embodiments of the utility model are further described;

[0025] A pull plate labor-saving structure, comprising a camshaft 5;

[0026] An automatic pressure regulating system is installed on the camshaft 5 , and the automatic pressure regulating system includes a transmission component and a pressure regulating component. The pressure regulating component is transmission-connected to the transmission component and both are installed on the camshaft 5 .

[0027] The pull plate labor-saving structure is installed in the main housing of the diesel engine, and a pull plate body, an impeller and a crankshaft are installed in the main housing. A handle is installed on the main housing, and the inner end of the handle extends into the main housing and is rotatably connected with the pull plate body. The impeller is located on one side of the pull plate body, and a starting disk (not shown in the figure) is installed on the impeller, and the starting disk is connected to the handle in a transmission manner. The crankshaft is fixedly connected to the impeller, and a camshaft 5 is located on one side of the crankshaft and is connected in a transmission manner therewith. A cylinder (not shown in the figure) is provided in the main housing, and an exhaust valve is provided on the cylinder. The camshaft 5 is connected in a transmission manner with the exhaust valve, and the combination Figure 3 In the figure, the pull plate body is marked as 1, the impeller is marked as 2, the handle is marked as 3, and the crankshaft is marked as 4. When the operator pulls the handle 3 on the pull plate body 1, the handle 3 drives the starter plate to drive the impeller 2 to rotate, and then transmits the power to the camshaft 5 through the crankshaft 4 and rotates it, and the camshaft 5 drives the transmission component to rotate. When the speed of the crankshaft 4 is as high as 300 rpm, the cylinder is in the compression stage and the exhaust valve is in a closed state; when the speed of the crankshaft 4 exceeds 300 rpm, the transmission component is affected by the centrifugal force to drive the pressure regulating member to open the exhaust valve for pressure relief, so as to automatically eliminate the pressure generated in the main box during the engine starting process, significantly reduce the force required to start the engine, and achieve the purpose of labor saving. When the camshaft 5 stops rotating, the transmission component automatically returns to its position, and at the same time, the transmission component will turn the pressure regulating member counterclockwise to return it to its position. This automatic return mechanism not only ensures the reset and readiness of the engine, but also provides convenience for the continuous operation of the engine.

[0028] The application of the pull plate labor-saving structure has significantly improved the starting mechanism of the diesel engine, making it more humane and labor-saving. Especially when starting an engine in a low temperature environment or when the engine has not been used for a long time, this technology can effectively reduce the physical burden of the operator, making the user experience better, and also improve the success rate of engine starting, thereby improving the overall operating efficiency. In addition, since the pressure generated in the main box can be automatically eliminated during the engine starting process, thereby reducing the wear of its internal mechanical parts during the engine starting process, the implementation of this technology is expected to reduce the long-term maintenance cost of the engine and extend the engine life. Both demonstrate the advanced technical level and broad application prospects in the field of diesel engine design.

[0029] The transmission components include a counterweight block 1 7, a counterweight block 2 10 and a reset component. The counterweight block 1 7 and the counterweight block 2 10 are both installed on the camshaft 5 by rivets, and the counterweight block 1 7 is connected to the pressure regulating member by transmission, and the reset component is installed between the counterweight block 1 7 and the counterweight block 2 10.

[0030] Specifically, when the speed of the crankshaft 4 is up to 300 rpm, the cylinder is in the compression stage and the exhaust valve is in a closed state; when the speed of the crankshaft 4 exceeds 300 rpm, the counterweight block 1 7 and the counterweight block 2 10 in the transmission component will be affected by the centrifugal force, so that the counterweight block 1 7 and the counterweight block 2 10 will be swung outward from the camshaft 5, and the counterweight block 1 7 will turn the pressure regulating member clockwise, and the pressure regulating member can open the exhaust valve to release the pressure, so as to automatically eliminate the pressure generated in the main box during the engine starting process, significantly reduce the force required to start the engine, and achieve the purpose of labor saving. In this process, the reset component will be affected by the pulling force of the counterweight block 1 7 and the counterweight block 2 10 and undergo elastic deformation. When the camshaft 5 stops rotating, the counterweight block 1 7 and the counterweight block 2 10 automatically return to their positions under the elastic force of the reset component, and at the same time, the counterweight block 1 7 turns the pressure regulating member counterclockwise to return it to its position. This automatic homing mechanism not only ensures that the engine is reset and ready, but also facilitates continuous engine operation.

[0031] The reset component includes a tension spring 9, which is installed between the counterweight block 1 7 and the counterweight block 2 10.

[0032] Specifically, the tension spring 9 will be stretched during the swinging of the counterweight block 7 and the counterweight block 2 10. At this time, the tension spring 9 has elastic potential energy. When the camshaft 5 stops rotating, the external force on the counterweight block 7 and the counterweight block 2 10 is reduced, and the tension spring 9 with elastic potential energy will pull the counterweight block 1 7 and the counterweight block 2 10, so that the counterweight block 1 7 and the counterweight block 2 10 return to their original positions. The counterweight block 1 7 will push the pressure regulating piece counterclockwise to return it to its original position, so that the automatic pressure regulating system can achieve automatic pressure regulation and automatic return to its original position at the same time.

[0033] The pressure regulating member comprises an adjusting rod 8, which is mounted on the camshaft 5 and is in transmission connection with a counterweight block 7.

[0034] Specifically, the counterweight 7 moves the adjusting rod 8 clockwise, and the adjusting rod 8 can open the exhaust valve to release pressure, thereby automatically eliminating the pressure generated in the main box during the engine starting process.

[0035] The utility model also provides a pull plate, including the above-mentioned pull plate labor-saving structure, a pull plate body 1, an impeller 2, a handle 3 and a crankshaft 4, the handle 3 is rotatably connected to the pull plate body 1, the impeller 2 is installed on one side of the pull plate body 1, and a starting disk is installed on the impeller 2, the starting disk is transmission-connected to the handle 3, the crankshaft 4 is fixedly connected to the impeller 2 through a semicircular pin, and the camshaft 5 is located on one side of the crankshaft 4 and is transmission-connected through a force transmission component.

[0036] Specifically, when the operator pulls the handle 3 on the pull plate body 1, the handle 3 drives the starter plate to drive the impeller 2 to rotate, and then transmits the power to the camshaft 5 through the crankshaft 4 and the force transmission component to rotate it, and the camshaft 5 will drive the transmission component to rotate. When the speed of the crankshaft 4 is as high as 300 rpm, the cylinder is in the compression stage and the exhaust valve is in a closed state; when the speed of the crankshaft 4 exceeds 300 rpm, the transmission component is affected by the centrifugal force to drive the pressure regulating member to open the exhaust valve for pressure relief, so as to automatically eliminate the pressure generated in the main box during the engine starting process, significantly reduce the force required to start the engine, and achieve the purpose of labor saving. When the camshaft 5 stops rotating, the transmission component automatically returns to its position. At the same time, the transmission component will turn the pressure regulating member counterclockwise to return it to its position. This automatic return mechanism not only ensures the reset and readiness of the engine, but also provides convenience for the continuous operation of the engine.

[0037] The force transmission assembly includes two helical gears 6, which are respectively sleeved and fixed on the crankshaft 4 and the camshaft 5, and the two helical gears 6 are meshed and connected;

[0038] Specifically, when the crankshaft 4 rotates, it drives the helical gear 6 thereon to rotate. Since the two helical gears 6 are meshed and connected, the other helical gear 6 can be driven to rotate, thereby driving the camshaft 5 to rotate.

[0039] The utility model also provides an engine, including the above-mentioned pull plate; when the operator pulls the handle 3 on the pull plate body 1, the handle 3 drives the start plate and drives the impeller 2 to rotate, and then transmits the power to the camshaft 5 through the crankshaft 4 and makes it rotate, and the camshaft 5 will drive the transmission component to rotate. When the speed of the crankshaft 4 is as high as 300 rpm, the cylinder is in the compression stage and the exhaust valve is in a closed state; when the speed of the crankshaft 4 exceeds 300 rpm, the transmission component is affected by the centrifugal force to drive the pressure regulating component to open the exhaust valve for pressure relief, so as to automatically eliminate the pressure generated in the main box during the engine starting process, significantly reduce the force required to start the engine, and achieve the purpose of labor saving. When the camshaft 5 stops rotating, the transmission component automatically returns to its position, and at the same time, the transmission component will turn the pressure regulating component counterclockwise to return it to its position. This automatic return mechanism not only ensures the reset and readiness of the engine, but also provides convenience for the continuous operation of the engine.

Claims

1. A pull plate labor-saving structure, comprising a camshaft (5), characterized in that: An automatic pressure regulating system is installed on the camshaft (5), and the automatic pressure regulating system comprises a transmission component and a pressure regulating component. The pressure regulating component is in transmission connection with the transmission component, and both are installed on the camshaft (5).

2. A pull plate labor-saving structure according to claim 1, characterized in that: The transmission component comprises a counterweight block 1 (7), a counterweight block 2 (10) and a reset component. The counterweight block 1 (7) and the counterweight block 2 (10) are both mounted on the camshaft (5) by rivets, and the counterweight block 1 (7) is transmission-connected to the pressure regulating member. The reset component is mounted between the counterweight block 1 (7) and the counterweight block 2 (10).

3. A pull plate labor-saving structure according to claim 2, characterized in that: The reset component comprises a tension spring (9), and the tension spring (9) is installed between the first counterweight block (7) and the second counterweight block (10).

4. A pull plate labor-saving structure according to claim 2, characterized in that: The pressure regulating member comprises an adjusting rod (8), which is mounted on the camshaft (5) and is drivingly connected to a counterweight block (7).

5. A pull plate, characterized in that: It comprises the pull plate labor-saving structure as claimed in any one of claims 1 to 4, a pull plate body (1), an impeller (2), a handle (3) and a crankshaft (4), wherein the handle (3) is rotatably connected to the pull plate body (1), the impeller (2) is mounted on one side of the pull plate body (1), and a starting disk is mounted on the impeller (2), the starting disk is transmission-connected to the handle (3), the crankshaft (4) is fixedly connected to the impeller (2) via a semicircular pin, and the camshaft (5) is located on one side of the crankshaft (4) and is transmission-connected via a force transmission component.

6. A pull tray according to claim 5, characterized in that: The force transmission component comprises two helical gears (6), the two helical gears (6) are respectively sleeved and fixed on the crankshaft (4) and the camshaft (5), and the two helical gears (6) are meshed and connected.

7. An engine, characterized in that: A pull tray comprising the pull tray according to any one of claims 5 to 6.

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