Diesel engine starting pull disc

Abstract

The utility model relates to a diesel engine starting pull disc which is applied to the field of diesel engines and comprises a chassis, a starting disc is rotationally connected to the chassis, two oppositely-arranged shifting pieces are rotationally connected to the starting disc, and the chassis is provided with a first driving unit used for driving the starting disc to rotate and a second driving unit used for driving the shifting pieces to rotate. The starting cup frame is arranged on the starting disc; and when the first driving unit is started, the two shifting pieces are respectively and partially inserted into the connecting holes of the starting cup. The starting cup has the technical effects that when the two oppositely-arranged shifting pieces are inserted into the connecting holes of the starting cup, double-point supporting can be formed, the connecting stability between the shifting pieces and the starting cup is greatly improved through the multi-point contact mode, the possibility that the starting cup shakes or deviates due to uneven single-point stress can be reduced, and the starting cup is prevented from being damaged. Therefore, the stability and reliability of the whole diesel engine starting process are improved.

Description

Technical Field

[0001] The present application relates to the technical field of diesel engines, and in particular to a diesel engine starting pull plate. Background Art

[0002] A diesel engine is an engine that burns diesel to release energy. It has the advantages of high power and good economic performance. As an important power machinery, the diesel engine plays an irreplaceable role in modern society.

[0003] At present, when starting a diesel engine, the operator generally relies on the operator to pull a pull rope to manually drive the pull plate. The pull plate includes a starting disk and a starting cup connected to the flywheel of the engine. The pull rope is wrapped around the starting disk and connected to the starting disk. A separately set paddle is rotatably connected to the starting disk, and a connecting hole matching the paddle is opened on the starting cup. When the operator pulls the pull rope to drive the starting disk to rotate, and the starting disk rotates to drive the paddle to rotate, the separately set paddle is inserted into the starting cup, so that the paddle drives the starting cup to rotate, and the starting cup drives the flywheel of the engine to rotate, thereby driving the diesel engine to start.

[0004] When the pull plate with a separate paddle is used, the paddle and the starter cup are subjected to force at a single point, which causes the starter cup to be unstable during rotation and the starting efficiency of the diesel engine to be low. Summary of the invention

[0005] In order to help solve the problem of uneven force on the start cup and unstable rotation of the start cup due to single-point force applied to the start cup during use, the present application provides a diesel engine starter pull plate, which adopts the following technical solution: it includes a chassis, a protective ring is provided on the outer edge of the chassis, a start disk is rotatably connected to the chassis, and two oppositely arranged paddles are rotatably connected to the start disk, a first drive unit for driving the start disk to rotate and a second drive unit for driving the paddles to rotate are provided on the chassis, and the start cup is mounted on the start disk; when the first drive unit is started, the two paddles are partially inserted into the connecting holes of the start cup respectively.

[0006] In a specific possible implementation scheme, the first driving unit includes a rope threading hole opened on the protective ring, and an annular placement groove is opened on the outer edge of the starting disk. The pull rope passes through the rope threading hole and is wrapped in the annular placement groove, and one end of the pull rope is connected to the starting disk. The base is also provided with a first reset component for driving the starting disk to reset.

[0007] In a specific implementation manner, the first reset assembly includes a planar spiral spring disposed on the base, one end of the planar spiral spring is connected to the base, and the other end of the planar spiral spring is connected to the starting disk.

[0008] In a specific possible implementation mode, the start disk is provided with a paddle post, the paddle is provided with a rotation hole matching the paddle post, and the paddle post passes through the rotation hole.

[0009] In a specific feasible implementation scheme, the second driving unit includes a central column arranged on the base, the starting disk is rotatably connected to the outer edge of the central column, a mounting block is provided on the surface of the central column facing away from the base, a connecting column is provided on the surface of the mounting block facing the base, a driving spring matching the connecting column is sleeved on the outer edge of the connecting column, two ends of the driving spring are respectively in contact with two paddles, and a second reset component for driving the paddle to reset is also provided on the starting disk; when the first driving unit is started, the driving spring drives the two paddles to be partially inserted into the connecting holes of the starting cup.

[0010] In a specific feasible implementation scheme, the second reset component includes a torsion spring groove provided on the starting disk, a torsion spring matching the torsion spring groove is provided in the torsion spring groove, the paddle post is located at the inner edge of the torsion spring, a first mounting groove is provided at the bottom of the torsion spring groove, a second mounting groove corresponding to the first mounting groove is provided on the paddle, one end of the torsion spring is inserted into the first mounting groove, and the other end is inserted into the second mounting groove.

[0011] In a specific possible implementation manner, a limit block is provided on the surface of the start disk facing the paddle, the central column passes through the limit block and the limit block is located between the two paddles.

[0012] In a specific possible implementation manner, a plurality of arc-shaped limit plates are provided on the surface of the chassis facing the starting disk, and the starting disk is located at the inner edges of the plurality of arc-shaped limit plates and in contact with the arc-shaped limit plates.

[0013] In a specific possible implementation manner, a limiting groove is provided on the surface of the starter disc facing the paddle, and the starter cup holder is arranged in the limiting groove.

[0014] In a specific possible implementation mode, a mounting ring is provided at the outer edge of the protective ring, and a plurality of mounting holes are opened on the mounting ring.

[0015] In summary, the present application has at least the following beneficial technical effects: the first driving unit is started to drive the starter disk to rotate, and the second driving unit causes the two paddles on the starter disk to rotate respectively, so that the two oppositely arranged paddles are inserted into the connecting holes of the starter cup, so that the paddles drive the starter cup to rotate, and the starter cup drives the flywheel of the engine to rotate, thereby driving the diesel engine to start. When the two oppositely arranged paddles are inserted into the connecting holes of the starter cup, they can form a double-point support. This multi-point contact method greatly enhances the connection stability between the paddle and the starter cup, helps to reduce the possibility of shaking or offsetting the starter cup due to uneven force at a single point, thereby improving the stability and reliability of the entire diesel engine starting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0017] Figure 2 It is a structural schematic diagram used to reflect the installation block in the embodiment of the present application.

[0018] Figure 3 It is a schematic diagram of the structure of the driving spring in the embodiment of the present application.

[0019] Figure 4 It is a structural schematic diagram used to reflect the torsion spring slot in the embodiment of the present application.

[0020] Figure 5 It is an exploded schematic diagram used to illustrate the limit block in the embodiment of the present application.

[0021] Figure numerals: 1. chassis; 2. starting disk; 3. paddle; 4. rope threading hole; 5. annular placement groove; 6. protective ring; 7. paddle column; 8. rotating hole; 9. center column; 10. mounting block; 11. connecting column; 12. driving spring; 13. torsion spring groove; 14. first mounting groove; 15. second mounting groove; 16. limit block; 17. arc-shaped limit plate; 18. limit groove; 19. starting cup; 20. mounting ring; 21. mounting hole; 22. connecting hole. DETAILED DESCRIPTION

[0022] The following is combined with Figure 1-5 This application is further described in detail.

[0023] The embodiment of the present application discloses a diesel engine starting pull plate.

[0024] Reference Figure 1 and Figure 2 The diesel engine starting pull plate includes a chassis 1, on which a starting disk 2 is rotatably connected. In the embodiment of the present application, the centers of the chassis 1 and the starting disk 2 are coaxially arranged, and four arc-shaped limit plates 17 matching the size of the starting disk 2 are fixedly connected to the surface of the chassis 1 facing the starting disk 2. The four arc-shaped limit plates 17 are evenly distributed on the chassis 1, and the starting disk 2 is located at the inner edges of the four arc-shaped limit plates 17 and contacts with the arc-shaped limit plates 17. The four arc-shaped limit plates 17 limit the starting position, reduce the possibility of the starting disk 2 shifting during the rotation process, and improve the stability of the placement of the starting disk 2.

[0025] Reference Figure 1 and Figure 2A protective ring 6 is fixedly connected to the outer edge of the chassis 1, and the start disk 2 is located at the inner edge of the protective ring 6. A mounting ring 20 is fixedly connected to the outer edge of the protective ring 6. A plurality of mounting holes 21 are provided on the mounting ring 20. The mounting holes 21 are used to facilitate the connection of the diesel engine starter pull plate with external equipment. At the same time, the protective ring 6 reduces the possibility of external force interfering with the internal part of the diesel engine starter pull plate, thereby improving the safety and stability of the operation of the diesel engine starter pull plate.

[0026] Reference Figure 1 and Figure 2 Two oppositely arranged paddles 3 are rotatably connected to the start disk 2, and two paddle 3 columns are fixedly connected to the start disk 2. A rotation hole 8 matching the size of the paddle 3 column is opened on the paddle 3. The two paddle 3 columns respectively pass through the two rotation holes 8. The paddle 3 columns limit the rotation direction of the paddle 3, so that the paddle 3 rotates around the paddle 3 columns, reducing the possibility of deviation or shaking of the paddle 3 during rotation, and improving the stability of the paddle 3 during rotation.

[0027] Reference Figure 1 and Figure 2 The chassis 1 is provided with a first driving unit for driving the start disk 2 to rotate and a second driving unit for driving the paddle 3 to rotate; when the second driving unit is started, the two paddles 3 are partially inserted into the connecting hole 22 of the start cup 19. An annular limiting groove 18 matching the size of the start cup 19 is provided on the surface of the start disk 2 facing the paddle 3. The cup mouth of the start cup 19 is mounted in the limiting groove 18. The limiting groove 18 limits the position of the start cup 19, thereby improving the stability of the position of the start cup 19 mounted on the start disk 2, thereby improving the stability and reliability of the entire start process. The two paddles 3 in the embodiment of the present application are made of k5235 material, which is a special alloy steel with high strength, high toughness, good corrosion resistance and heat resistance, which can effectively reduce the noise generated when the paddle 3 contacts the start cup 19.

[0028] Reference Figure 1 and Figure 3 The first driving unit includes a rope threading hole 4 provided on a protective ring 6 of the chassis 1, an annular placement groove 5 provided on the outer edge of the start disk 2, the pull rope is passed through the rope threading hole 4 and then wound in the annular placement groove 5, and one end of the pull rope is connected to the start disk 2, and a first reset component for driving the start disk 2 to reset is also provided on the base. In the embodiment of the present application, by setting the groove width and groove depth of the annular placement groove 5, the pull rope can be wound twice in the annular placement groove 5, reducing the possibility of the nylon pull rope being squeezed and stuck when the operator pulls the pull rope, and improving the smoothness and convenience of the operator when starting the diesel engine starter pull plate.

[0029] Therefore, the operator pulls the pull rope passed through the rope hole 4. Since one end of the pull rope is connected to the starting disk 2, the pull rope drives the starting disk 2 to rotate, so that the paddle 3 on the starting disk 2 contacts the second drive unit. Under the rotation of the starting disk 2, the second drive unit makes the two oppositely arranged paddles 3 respectively inserted into the connecting holes 22 of the starting cup 19, so that the paddle 3 drives the starting cup 19 to rotate, and the starting cup 19 drives the flywheel of the engine to rotate, thereby driving the diesel engine to start.

[0030] Reference Figure 1 and Figure 3 The first reset component includes a planar volute spring arranged on the base, one end of the planar volute spring is connected to the arc-shaped limit plate 17 of the base, and the other end is connected to the starting disk 2. The planar volute spring is deformed when acted upon by the starting disk 2 to store energy; when the external force of the pull rope is removed, the planar volute spring releases energy and returns to its original state, thereby driving the starting disk 2 to reset.

[0031] Reference Figure 3 and Figure 4 The second driving unit includes a central column 9 arranged on the base, and the starting disk 2 is rotatably connected to the outer edge of the central column 9. A mounting block 10 is bolted on the surface of the central column 9 facing away from the base, and a connecting column 11 is fixedly connected to the surface of the mounting block 10 facing the base. In the embodiment of the present application, the mounting block 10, the connecting column 11 and the starting disk 2 are coaxially arranged, and the outer edge of the connecting column 11 is sleeved with a driving spring 12 matching the size of the connecting column 11. In the embodiment of the present application, the center of the driving spring 12 is sleeved on the outer edge of the connecting column 11, and the two ends of the driving spring 12 extend toward the base and contact the two paddles 3 respectively. A second reset component for driving the paddle 3 to reset is also provided on the starting disk 2; when the second driving unit is started, the driving spring 12 drives the two paddles 3 to be partially inserted into the connecting holes 22 of the starting cup 19 respectively.

[0032] Therefore, the paddle 3 on the start disk 2 is in contact with the driving spring 12. When the pull rope drives the start disk 2 to rotate, the two paddles 3 on the start disk 2 are squeezed by the two ends of the driving spring 12 respectively. The driving spring 12 provides a force on the two paddles 3, so that the two oppositely arranged paddles 3 rotate respectively and are inserted into the connecting holes 22 of the start cup 19, thereby realizing that the paddle 3 drives the start cup 19 to rotate.

[0033] Reference Figure 4 and Figure 5 The surface of the start plate 2 facing the paddle 3 is fixedly connected with a limit block 16, the center column 9 passes through the limit block 16 and the limit block 16 is located between the two paddles 3, and the two ends of the driving spring 12 are respectively located between the paddle 3 and the limit block 16. The limit block 16 limits the rotation position of the paddle 3, realizes the control of the rotation stroke of the paddle 3, and reduces the possibility of excessive deflection of the two paddles 3.

[0034] Reference Figure 3 and Figure 4 The second reset assembly includes a torsion spring slot 13 provided on the start disk 2, a torsion spring matching the size of the torsion spring slot 13 is installed in the torsion spring slot 13, the paddle 3 column is located at the inner edge of the torsion spring, a first mounting slot 14 is provided at the bottom of the torsion spring slot 13, a second mounting slot 15 corresponding to the first mounting slot 14 is provided on the paddle 3, one end of the torsion spring is inserted into the first mounting slot 14, and the other end is inserted into the second mounting slot 15. Therefore, the torsion spring is deformed by the external force of the paddle 3 due to its elastic characteristics, and can automatically return to its original state when the external force is removed, so as to facilitate the paddle 3 to accurately return to the initial position from the start cup 19.

[0035] In addition, the diesel engine starter pull plate in the embodiment of the present application can provide a more uniform force distribution due to the design of the double paddles 3, so that the starter cup 19 can rotate more smoothly and efficiently. The single-point paddle 3 may cause the starter cup 19 to rotate discontinuously or jam due to uneven force, while the double paddles 3 can effectively avoid this problem and ensure the continuity and efficiency of the starting process. Long-term single-point force is likely to cause the local wear of the paddle 3 or the starter cup 19 to increase, affecting the service life, while the double paddle 3 design disperses the force points and reduces the degree of wear of a single part, thereby extending the service life of the diesel engine starter pull plate as a whole. At the same time, for the operator, the design of the double paddles 3 may make the feel of pulling the pull rope more stable and smooth, reducing the risk of start failure or damage caused by improper operation. At the same time, because the starting process is more stable, it is also easier for the operator to grasp and control the timing and strength of the start, which is convenient for starting.

[0036] The implementation principle of the embodiment of the present application is as follows: the operator pulls the pull rope passed through the rope hole 4. Since one end of the pull rope is connected to the start disk 2, the pull rope drives the start disk 2 to rotate. The two paddles 3 on the start disk 2 are squeezed by the two ends of the driving spring 12 respectively, so that the two oppositely arranged paddles 3 are respectively rotated and inserted into the connecting hole 22 of the start cup 19, so that the paddles 3 drive the start cup 19 to rotate, and the start cup 19 drives the flywheel of the engine to rotate, thereby driving the diesel engine to start. When the two oppositely arranged paddles 3 are inserted into the connecting hole 22 of the start cup 19, double-point support can be formed. This multi-point contact method greatly enhances the connection stability between the paddles 3 and the start cup 19, and helps to reduce the possibility of shaking or offsetting the start cup 19 due to uneven force at a single point, thereby improving the stability and reliability of the entire diesel engine starting process.

[0037] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A diesel engine starting pull plate, characterized in that: The invention comprises a chassis (1), a starting disk (2) being rotatably connected to the chassis (1), two paddles (3) being rotatably connected to the starting disk (2), a first driving unit for driving the starting disk (2) to rotate and a second driving unit for driving the paddles (3) to rotate being provided on the chassis (1), and a starting cup (19) being mounted on the starting disk (2); when the first driving unit is started, the two paddles (3) are respectively partially inserted into the connecting holes (22) of the starting cup (19).

2. The diesel engine starting pull plate according to claim 1, characterized in that: The first driving unit comprises a rope threading hole (4) provided on the chassis (1); an annular placement groove (5) is provided on the outer edge of the starting disk (2); a pull rope is passed through the rope threading hole (4) and then wound in the annular placement groove (5), and one end of the pull rope is connected to the starting disk (2); and a first reset component for driving the starting disk (2) to reset is also provided on the chassis (1).

3. The diesel engine starting pull plate according to claim 2, characterized in that: The first reset component comprises a planar spiral spring arranged on the base, one end of the planar spiral spring is connected to the base, and the other end of the planar spiral spring is connected to the starting disk (2).

4. The diesel engine starting pull plate according to claim 1, characterized in that: The start disk (2) is provided with a paddle (3) column, the paddle (3) is provided with a rotation hole (8) matching the paddle (3) column, and the paddle (3) column passes through the rotation hole (8).

5. The diesel engine starting pull plate according to claim 4, characterized in that: The second driving unit comprises a central column (9) arranged on the base, the starting disk (2) is rotatably connected to the outer edge of the central column (9), a mounting block (10) is provided on the surface of the central column (9) facing away from the base, a connecting column (11) is provided on the surface of the mounting block (10) facing the base, the outer edge of the connecting column (11) is sleeved with a driving spring (12) matching the connecting column (11), the two ends of the driving spring (12) are respectively in contact with the two paddles (3), and the starting disk (2) is also provided with a second reset component for driving the paddles (3) to reset; when the first driving unit is started, the driving spring (12) drives the two paddles (3) to be partially inserted into the connecting holes (22) of the starting cup (19).

6. The diesel engine starting pull plate according to claim 5, characterized in that: The second reset component comprises a torsion spring groove (13) provided on the start disk (2), a torsion spring matching the torsion spring groove (13) being arranged in the torsion spring groove (13), a paddle (3) column being located at the inner edge of the torsion spring, a first mounting groove (14) being provided at the bottom of the torsion spring groove (13), a second mounting groove (15) corresponding to the first mounting groove (14) being provided on the paddle (3), one end of the torsion spring being inserted into the first mounting groove (14), and the other end being inserted into the second mounting groove (15).

7. The diesel engine starting pull plate according to claim 5, characterized in that: A limit block (16) is provided on the surface of the start disk (2) facing the paddle (3), the central column (9) passes through the limit block (16), and the limit block (16) is located between the two paddles (3).

8. The diesel engine starting pull plate according to claim 1, characterized in that: A plurality of arc-shaped limit plates (17) are provided on the surface of the chassis (1) facing the start disk (2), and the start disk (2) is located at the inner edges of the plurality of arc-shaped limit plates (17) and is in contact with the arc-shaped limit plates (17).

9. The diesel engine starting pull plate according to claim 1, characterized in that: A limiting groove (18) is provided on the surface of the starting disk (2) facing the paddle (3), and the starting cup (19) is mounted in the limiting groove (18).

10. The diesel engine starting pull plate according to claim 1, characterized in that: The outer edge of the chassis (1) is provided with a protective ring (6), the outer edge of the protective ring (6) is provided with a mounting ring (20), and the mounting ring (20) is provided with a plurality of mounting holes (21).

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