Shock absorption and noise reduction structure of diesel engine
By setting a buffer base, shock absorbing pad and shock absorbing spring member on the bottom and outside of the diesel engine, the problems of vibration and noise of traditional diesel engines are solved, and a more stable and silent engine operation is achieved.
Patent Information
- Application Number
- CN202420389319.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-03-01
AI Technical Summary
Traditional diesel engines lack effective shock and noise reduction structures, which leads to greater vibration and noise during operation, affecting the surrounding environment.
A shock-absorbing and noise-absorbing structure of a diesel engine is designed, including setting a buffer base and shock-absorbing pad at the bottom of the engine body, and setting a plurality of shock-absorbing spring members on the outside of the body. The buffer base is connected to the engine body through a rubber block, which is pressed in contact with the limit groove to absorb torsional force, and the shock absorbing pad and shock absorbing spring further reduce noise and vibration.
It effectively reduces the torsional force and noise of the engine during operation, improves the installation stability of the engine and reduces the amplitude, and improves the silent effect of the surrounding environment.
Smart Images
Figure CN222687694U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of diesel engines, in particular to a vibration reduction and noise reduction structure of a diesel engine. Background Art
[0002] A diesel engine is an engine that burns diesel to release energy. Due to the high working pressure, diesel engines require all related parts to have high structural strength and rigidity, so diesel engines are relatively bulky and large in size. The manufacturing precision of diesel engine injection pumps and nozzles is high, so the cost is relatively high. In addition, diesel engines operate roughly, with large vibration and noise.
[0003] At present, traditional diesel engines do not have a certain shock-absorbing and noise-reducing structure, and in actual use, they mostly use rigid connections such as bolts. During operation, the engine drives the output shaft to rotate at high speed, which not only produces a large amplitude, but also generates a large noise during the engine vibration process, causing a certain impact on surrounding personnel. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and proposes a vibration reduction and noise reduction structure for a diesel engine.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A vibration reduction and noise reduction structure for a diesel engine, comprising an engine body, wherein a base is provided at the bottom of the engine body, a plurality of limit grooves are provided on the base, a buffer base is connected to the limit grooves through rubber blocks, and a plurality of first connecting seats are provided on the outside of the engine body, each of the first connecting seats is connected to a connecting tube through a flexible rubber tube, and one side of the connecting tube is connected to a second connecting seat through a connecting screw;
[0007] The buffer base comprises a connecting bottom plate, a shock-absorbing middle plate and a rubber block, wherein a shock-absorbing pad is installed at the lower part of the buffer base.
[0008] In addition, a preferred structure is that the rubber block is in extrusion contact with a limiting groove provided on the engine body, and both the rubber block and the limiting groove are trapezoidal, wherein one end of the rubber block is connected to the shock absorbing middle plate.
[0009] In addition, a preferred structure is that a connecting bottom plate is provided at the bottom of the shock-absorbing middle plate, connecting end blocks are provided on both sides of the connecting bottom plate, the connecting end blocks pass through the shock-absorbing middle plate, and the connecting end blocks are connected to the base.
[0010] In addition, a preferred structure is that slots are provided on both sides of the base, and connecting end blocks are snap-fitted into the slots, wherein threaded holes are provided in the connecting end blocks and the middle of the slots, and the connecting end blocks and the slots are fixedly connected by bolts.
[0011] In addition, a preferred structure is that one end of each of the first connecting seats is connected to a fixed end head, a flexible rubber tube is provided on one side of the fixed end head, a telescopic rod is provided at one end inside the flexible rubber tube, a bottom plate is provided at one end of the telescopic rod, one side of the bottom plate is in contact with the connecting screw, and a shock-absorbing spring is provided on the outer side of the telescopic rod.
[0012] In addition, a preferred structure is that one end of the connecting screw is connected to the connecting tube through a screw hole, and both ends of the connecting tube are rotatably mounted on the flexible rubber tube and the connecting screw respectively, wherein the connecting screw is connected to the second connecting seat.
[0013] The beneficial effects of the utility model are:
[0014] In the utility model, a buffer base is arranged on the base of the engine body, and an internal rubber block is arranged, so that the torsional force generated by the engine during operation can be reduced. At the same time, the shock-absorbing pad arranged on the bottom can reduce the collision between the engine body and the mounting surface during actual installation, and reduce the noise generated by its vibration. In addition, multiple shock-absorbing spring components arranged on the outside of the body can effectively improve the stability of the body installation and reduce the amplitude. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a structural schematic diagram of a vibration reduction and noise reduction structure of a diesel engine proposed by the utility model;
[0016] Figure 2 This is a structural schematic diagram of a vibration reduction and noise reduction structure of a diesel engine proposed by the utility model;
[0017] Figure 3 This is a structural schematic diagram of a vibration reduction and noise reduction structure of a diesel engine proposed by the utility model;
[0018] Figure 4 This is a structural schematic diagram of a vibration reduction and noise reduction structure of a diesel engine proposed by the utility model;
[0019] Figure 5 The utility model is a schematic structural diagram of a vibration and noise reduction structure of a diesel engine.
[0020] In the figure: 1 engine body, 11 base, 12 limit groove, 2 shock-absorbing pad, 3 buffer base, 31 connecting bottom plate, 32 shock-absorbing middle plate, 33 rubber block, 4 first connecting seat, 41 second connecting seat, 5 connecting cylinder, 6 connecting end block, 7 flexible rubber cylinder, 71 fixed end, 8 telescopic rod, 9 shock-absorbing spring, 91 bottom plate, 10 connecting screw. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0022] Reference Figure 1-5 A vibration reduction and noise reduction structure of a diesel engine comprises an engine body 1, a base 11 is provided at the bottom of the engine body 1, a plurality of limit grooves 12 are provided on the base 11, a buffer base 3 is connected to the limit groove 12 through a rubber block 33, and a plurality of first connecting seats 4 are provided on the outer side of the engine body 1, and each of the first connecting seats 4 is connected to a connecting tube 5 through a flexible rubber tube 7, and one side of the connecting tube 5 is connected to a second connecting seat 41 through a connecting screw 10;
[0023] Furthermore, the buffer base 3 includes a connecting bottom plate 31, a shock absorbing middle plate 32, and a rubber block 33, wherein a shock absorbing pad 2 is installed at the lower part of the buffer base 3. The setting of the shock absorbing pad 2 can effectively avoid direct contact between the machine body and the mounting surface, thereby offsetting part of the noise.
[0024] The rubber block 33 is in compression contact with the limiting groove 12 provided on the engine body 1 , and both the rubber block 33 and the limiting groove 12 are trapezoidal, wherein one end of the rubber block 33 is connected to the shock absorbing middle plate 32 .
[0025] Moreover, a connecting bottom plate 31 is provided at the bottom of the shock-absorbing middle plate 32 , and connecting end blocks 6 are provided on both sides of the connecting bottom plate 31 . The connecting end blocks 6 pass through the shock-absorbing middle plate 32 , and the connecting end blocks 6 are connected to the base 11 .
[0026] In addition, slots are provided on both sides of the base 11, and a connecting end block 6 is clamped and installed in the slot, wherein threaded holes are provided in the connecting end block 6 and the middle of the slot, and the connecting end block 6 and the slot are fixedly connected by bolts.
[0027] Moreover, one end of each first connecting seat 4 is connected to a fixed end 71, one side of the fixed end 71 is provided with a flexible rubber tube 7, one end of the inner part of the flexible rubber tube 7 is provided with a telescopic rod 8, one end of the telescopic rod 8 is provided with a bottom plate 91, one side of the bottom plate 91 is in contact with the connecting screw 10, and a shock-absorbing spring 9 is provided on the outer side of the telescopic rod 8.
[0028] Furthermore, one end of the connecting screw 10 is connected to the connecting tube 5 through a screw hole, and both ends of the connecting tube 5 are rotatably mounted on the flexible rubber tube 7 and the connecting screw 10 respectively, wherein the connecting screw 10 is connected to the second connecting seat 41 .
[0029] In this embodiment, the shock absorbing spring mechanism is connected to the first connecting seat 4 on the engine body 1, and is connected to the mounting member through the second connecting seat 41. At the same time, the shock absorbing pad 2 arranged at the bottom of the engine body 1 is in contact with the mounting member, and the rubber block 33 therein is in squeeze contact with the limiting groove 12 opened on the base 11. In actual use, the up and down amplitudes generated by the operation of the engine body 1 will be initially absorbed by the shock absorbing pad 2, and the torsional force generated during the operation is offset by the rubber block 33 arranged at the bottom. Since the bottom of the rubber block 33 is not completely embedded in the limiting groove 12, the weight of the engine body 1 is pressed on the rubber block 33 to ensure a more effective shock absorbing effect.
[0030] At the same time, the shock-absorbing spring mechanism arranged on the outside of the engine body 1 can effectively ensure the operating stability of the engine body 1. When the engine body 1 is in operation, the telescopic rod 8 is extended and retracted, and the vibration is offset by the extension and retraction of the shock-absorbing spring 9. The flexible rubber tube 7 is provided to effectively improve its shock-absorbing effect and increase a certain degree of ductility. At the same time, by adjusting the connecting tube 5, the connecting tube 5 is rotated on the connecting screw 10, so that the connecting tube 5 moves toward the upper part of the connecting screw 10, and drives the internal bottom plate 91 to move upward, thereby squeezing the shock-absorbing spring 9, thereby changing its action stroke to ensure a more efficient shock-absorbing effect.
[0031] In the utility model, a buffer base 3 is provided on the base of the engine body 1, and an internal rubber block 33 is provided, so that the torsional force generated by the engine during operation can be reduced. At the same time, the shock-absorbing pad 2 provided at the bottom can reduce the collision between the engine body 1 and the mounting surface during actual installation, and reduce the noise generated by its vibration. In addition, a plurality of shock-absorbing spring components provided on the outside of the body can effectively improve the stability of the body installation and reduce the amplitude.
[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A vibration and noise reduction structure for a diesel engine, comprising an engine body (1), characterized in that: The bottom of the engine body (1) is provided with a base (11), a plurality of limiting grooves (12) are provided on the base (11), a buffer base (3) is connected to the limiting groove (12) via a rubber block (33), and a plurality of first connecting seats (4) are provided on the outside of the engine body (1), and each first connecting seat (4) is connected to a connecting tube (5) via a flexible rubber tube (7), and one side of the connecting tube (5) is connected to a second connecting seat (41) via a connecting screw (10); The buffer base (3) comprises a connecting bottom plate (31), a shock-absorbing middle plate (32), and a rubber block (33), wherein a shock-absorbing pad (2) is installed at the lower part of the buffer base (3).
2. A diesel engine vibration reduction and noise reduction structure according to claim 1, characterized in that: The rubber block (33) is in extrusion contact with a limiting groove (12) provided on the engine body (1), and both the rubber block (33) and the limiting groove (12) are trapezoidal, wherein one end of the rubber block (33) is connected to the shock absorbing middle plate (32).
3. A vibration and noise reduction structure for a diesel engine according to claim 2, characterized in that: A connecting bottom plate (31) is provided at the bottom of the shock-absorbing middle plate (32), and connecting end blocks (6) are provided on both sides of the connecting bottom plate (31). The connecting end blocks (6) pass through the shock-absorbing middle plate (32), and the connecting end blocks (6) are connected to the base (11).
4. A diesel engine vibration reduction and noise reduction structure according to claim 3, characterized in that: The base (11) is provided with slots on both sides, and a connecting end block (6) is mounted in the slot, wherein the connecting end block (6) and the middle of the slot are provided with threaded holes, and the connecting end block (6) and the slot are fixedly connected by bolts.
5. The vibration and noise reduction structure of a diesel engine according to claim 1, characterized in that: One end of each of the first connecting seats (4) is connected to a fixed end head (71), one side of the fixed end head (71) is provided with a flexible rubber tube (7), one end of the inside of the flexible rubber tube (7) is provided with a telescopic rod (8), one end of the telescopic rod (8) is provided with a bottom plate (91), one side of the bottom plate (91) is in contact with the connecting screw rod (10), and a shock absorbing spring (9) is sleeved on the outer side of the telescopic rod (8).
6. A diesel engine vibration reduction and noise reduction structure according to claim 5, characterized in that: One end of the connecting screw (10) is connected to the connecting tube (5) through a screw hole, and the two ends of the connecting tube (5) are rotatably mounted on the flexible rubber tube (7) and the connecting screw (10), respectively, wherein the connecting screw (10) is connected to the second connecting seat (41).