Flywheel of diesel engine

Abstract

The utility model discloses a diesel engine flywheel which comprises a flywheel body, threaded holes, fixing bolts and a counterweight column, one end of the flywheel body is provided with a plurality of threaded holes, the fixing bolts are screwed on the threaded holes, each fixing bolt is composed of a bolt head and a screw rod, the screw rods are all screwed into the threaded holes, the length of each screw rod is smaller than the depth of each threaded hole, and the counterweight column is arranged on the flywheel body. An insertion hole is formed in the tail end of the screw rod, the balance weight column is inserted in the insertion hole, a spring in a compressed state is arranged between the balance weight column and the hole bottom of the insertion hole, and the tail end of the balance weight column abuts against the hole bottom of the threaded hole; according to the flywheel, the threaded holes, the fixing bolts and the balance weight columns are matched, so that the flywheel can balance inertia force of rotation of the flywheel by using the proper balance weight columns in the different threaded holes, adjustment is convenient, and adjustment is more flexible.

Description

Technical Field

[0001] This utility model relates to the technical field of engines, and in particular to the technical field of flywheels. Background Technology

[0002] A flywheel is a mechanical device used to store rotational kinetic energy during rotational motion. Flywheels tend to resist changes in rotational speed. When the power source exerts a varying torque on the rotating shaft (e.g., in a reciprocating engine), or when applied to intermittent loads (e.g., in a piston or punch press), the flywheel can reduce speed fluctuations, making the rotational motion smoother. Some tests require intermittent high-power output. If this power is directly provided by the electrical system, it may cause unwanted current surges. When used with a flywheel, when the input power is greater than the output power, the flywheel converts the excess energy into its own kinetic energy, simultaneously accelerating the flywheel; when the input power is less than the output power, the flywheel decelerates, and the released kinetic energy becomes the power output.

[0003] Existing patent CN212004104U discloses a diesel engine flywheel assembly, which balances the inertial force of flywheel rotation through the reasonable distribution of weight-reducing grooves. However, since the weight-reducing grooves cannot be adjusted once they are processed, and errors are inevitable during the processing, it is impossible to adjust the balance of the inertial force of flywheel rotation after production is completed. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art by proposing a diesel engine flywheel that allows for easy counterweight balancing and has a relatively simple structure.

[0005] To achieve the above objectives, this utility model proposes a diesel engine flywheel, comprising a flywheel body, threaded holes, fixing bolts, and a counterweight column. One end of the flywheel body is provided with several threaded holes, and fixing bolts are screwed into the threaded holes. Each fixing bolt consists of a bolt head and a screw rod, with the screw rod fully screwed into the threaded hole. The length of the screw rod is less than the depth of the threaded hole. An insertion hole is provided at the end of the screw rod, and the counterweight column is inserted into the insertion hole. A spring in a compressed state is provided between the counterweight column and the bottom of the insertion hole, with the end of the counterweight column abutting against the bottom of the threaded hole.

[0006] Preferably, the central axis of the threaded hole is parallel to the central axis of the flywheel body, and the threaded hole is evenly arranged around the central axis of the flywheel body.

[0007] Preferably, one end of the flywheel body is provided with an annular groove, the annular groove and the flywheel body are located on the same central axis, the threaded hole is opened on the bottom of the annular groove, and the thickness of the bolt head is less than the depth of the annular groove.

[0008] Preferably, the inner wall of the socket is provided with a number of guide strips, which are parallel to the screw. The outer wall of the counterweight column is provided with a number of guide grooves that correspond one-to-one with the guide strips. The guide grooves are adapted to the guide strips, and the guide strips are inserted into the guide grooves.

[0009] Preferably, the outer side of the flywheel body includes a ring of flywheel teeth, one end of the flywheel body has a central hole and several crankshaft mounting holes, and the other end of the flywheel body has a main mounting hole. The main mounting hole, the central hole and the flywheel body are located on the same central axis, and the crankshaft mounting holes are evenly surrounding the central hole.

[0010] Preferably, the threaded hole and the center hole are located at the same end of the flywheel body.

[0011] The beneficial effects of this utility model are as follows: By combining threaded holes, fixing bolts, and counterweight columns, this utility model allows the flywheel to balance the inertial force of its rotation by using appropriate counterweight columns in different threaded holes, making adjustment more convenient and flexible.

[0012] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0013] Figure 1 This is a front view of the diesel engine flywheel of this utility model;

[0014] Figure 2 This is a cross-sectional view of the threaded hole of the diesel engine flywheel of this utility model.

[0015] In the diagram: 1-Flywheel body, 2-Fixing bolt, 10-Flywheel tooth, 11-Center hole, 12-Crankshaft mounting hole, 13-Main mounting hole, 15-Threaded hole, 16-Annular groove, 21-Bolt head, 22-Screw, 23-Insertion hole, 24-Spring, 25-Counterweight column, 26-Guide bar, 27-Guide groove. Detailed Implementation

[0016] Example 1:

[0017] See Figure 1 , Figure 2 The present invention relates to a diesel engine flywheel, comprising a flywheel body 1, threaded holes 15, fixing bolts 2, and counterweight column 25. One end of the flywheel body 1 is provided with several threaded holes 15, and fixing bolts 2 are screwed onto the threaded holes 15. Each fixing bolt 2 consists of a bolt head 21 and a screw 22. The screw 22 is fully screwed into the threaded holes 15, and the length of the screw 22 is less than the depth of the threaded holes 15. The end of the screw 22 is provided with an insertion hole 23, and the counterweight column 25 is inserted into the insertion hole 23. A spring 24 in a compressed state is provided between the counterweight column 25 and the bottom of the insertion hole 23, and the end of the counterweight column 25 abuts against the bottom of the threaded holes 15.

[0018] The central axis of the threaded hole 15 is parallel to the central axis of the flywheel body 1, and the threaded hole 15 is evenly surrounding the central axis of the flywheel body 1.

[0019] Example 2:

[0020] To prevent the bolt head 21 from colliding with other parts, an annular groove 16 is provided at one end of the flywheel body 1. The annular groove 16 and the flywheel body 1 are located on the same central axis. The threaded hole 15 is opened on the bottom of the annular groove 16. The thickness of the bolt head 21 is less than the depth of the annular groove 16.

[0021] Example 3:

[0022] In order to prevent the counterweight column 25 from rotating when the flywheel is running, the inner wall of the insertion hole 23 is provided with several guide bars 26, which are parallel to the screw 22. The outer wall of the counterweight column 25 is provided with several guide grooves 27 that correspond one-to-one with the guide bars 26. The guide grooves 27 are adapted to the guide bars 26, and the guide bars 26 are inserted into the guide grooves 27.

[0023] Example 4:

[0024] The outer side of the flywheel body 1 includes a ring of flywheel teeth 10. One end of the flywheel body 1 has a central hole 11 and several crankshaft mounting holes 12. The other end of the flywheel body 1 has a main mounting hole 13. The main mounting hole 13, the central hole 11 and the flywheel body 1 are located on the same central axis. The crankshaft mounting holes 12 are evenly surrounding the central hole 11.

[0025] The threaded hole 15 and the center hole 11 are located at the same end of the flywheel body 1.

[0026] The working process of this utility model:

[0027] In the operation of the diesel engine flywheel of this utility model, when balancing the flywheel, a suitable counterweight column 25 is selected as needed and inserted into the insertion hole 23 of the fixing bolt 2, and then the fixing bolt 2 is tightened. Different counterweight columns 25 can be selected for different threaded holes 15, and the adjustment is relatively flexible.

[0028] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A diesel engine flywheel, characterized in that: The device includes a flywheel body (1), threaded holes (15), fixing bolts (2), and counterweight column (25). One end of the flywheel body (1) is provided with several threaded holes (15). Fixing bolts (2) are screwed into the threaded holes (15). The fixing bolts (2) consist of a bolt head (21) and a screw (22). The screw (22) is fully screwed into the threaded hole (15). The length of the screw (22) is less than the depth of the threaded hole (15). The end of the screw (22) is provided with an insertion hole (23). The counterweight column (25) is inserted into the insertion hole (23). A spring (24) in a compressed state is provided between the counterweight column (25) and the bottom of the insertion hole (23). The end of the counterweight column (25) abuts against the bottom of the threaded hole (15).

2. The diesel engine flywheel as described in claim 1, characterized in that: The central axis of the threaded hole (15) is parallel to the central axis of the flywheel body (1), and the threaded hole (15) is evenly surrounding the central axis of the flywheel body (1).

3. The diesel engine flywheel as described in claim 1, characterized in that: One end of the flywheel body (1) is provided with an annular groove (16), the annular groove (16) and the flywheel body (1) are located on the same central axis, the threaded hole (15) is opened on the bottom of the annular groove (16), and the thickness of the bolt head (21) is less than the depth of the annular groove (16).

4. The diesel engine flywheel as described in claim 1, characterized in that: The inner wall of the socket (23) is provided with several guide strips (26), which are parallel to the screw (22). The outer wall of the counterweight column (25) is provided with several guide grooves (27) that correspond one-to-one with the guide strips (26). The guide grooves (27) are adapted to the guide strips (26), and the guide strips (26) are inserted into the guide grooves (27).

5. The diesel engine flywheel as described in claim 1, characterized in that: The outer side of the flywheel body (1) includes a ring of flywheel teeth (10). One end of the flywheel body (1) is provided with a central hole (11) and several crankshaft mounting holes (12). The other end of the flywheel body (1) is provided with a main mounting hole (13). The main mounting hole (13), the central hole (11) and the flywheel body (1) are located on the same central axis. The crankshaft mounting holes (12) are evenly surrounding the central hole (11).

6. The diesel engine flywheel as described in claim 5, characterized in that: The threaded hole (15) and the center hole (11) are located at the same end of the flywheel body (1).

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