Motorcycle engine shock absorber capable of reducing noise

Abstract

The invention discloses a motorcycle engine shock absorber capable of reducing noise, and relates to the technical field of motorcycles, the motorcycle engine shock absorber comprises a motorcycle body and an engine body, a disc is fixedly arranged on the side wall of the engine body, a rotating speed judging mechanism is arranged at the end of an output shaft of the engine, and a piston assembly is arranged at the end of the rotating speed judging mechanism. Through the hollow plate, the first arc plate, the L-shaped connecting rod, the second arc plate and the two connecting shafts, the noise reduction effect is adjusted in a self-adaptive mode according to the rotating speed of the engine body, manual adjustment is not needed, applicability is high, and convenience and rapidness are achieved; and a damping spring, two spring columns, two hollow columns, two oil storage boxes, a mounting frame, a conical rod, two screw rods, a connecting plate, two adjusting gears and an adjusting rack are arranged, so that the magnitude of damping is adaptively adjusted according to the rotating speed of the output shaft of the engine body, the automation degree is high, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of motorcycles, in particular to a noise-reducing shock absorber for a motorcycle engine. Background Art

[0002] As the core component of the suspension system, motorcycle engine shock absorbers currently adopt a hydraulic damping structure (the telescopic tube type accounts for more than 60%).

[0003] In the prior art, as the engine speed increases, the frequency of its piston movement increases, the corresponding frequency of the rocker arm swings increases, the vibration intensity increases, and the corresponding noise generated increases. The prior art cannot adapt to adjust the engine's shock-absorbing damping effect and noise reduction level according to the engine rotation speed, and is not suitable for motorcycles of different speeds. Summary of the Invention

[0004] The technical solution of the present invention addresses the technical problem that the existing technical solutions are too simple, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to provide a noise-reducing shock absorber for motorcycle engines to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A noise-reducing shock absorber for a motorcycle engine, comprising a motorcycle body and an engine body, a disc fixedly provided on the side wall of the engine body, a speed determination mechanism provided at the end of the engine output shaft, a piston assembly provided at the end of the speed determination mechanism, a noise reduction mechanism fixedly provided at the bottom of the engine body, a shock absorbing mechanism provided at the bottom of the noise reduction mechanism, and an adjustment mechanism provided at the bottom of the shock absorbing mechanism.

[0006] Preferably, the speed judgment mechanism includes two arc-shaped plates, two plug-in columns, two plug-in springs, two counterweights, two sleeve rods, two sleeve rods, a rotating ring and an oil cylinder. The oil cylinder is fixedly arranged at the end of the output shaft of the engine body, the two sleeve rods are fixedly connected and arranged on the side wall of the oil cylinder, the two sleeve rods are respectively plugged into the inside of the two sleeve rods, the two arc-shaped plates are located on the inner side wall of the disc and slide within a limited position, one end of the two plug-in columns is respectively fixed on the two arc-shaped plates, the two plug-in springs are respectively sleeved on the two plug-in rods, the two counterweights are respectively fixed on one end of the two sleeve rods close to the arc-shaped plate, and the two sleeve rods are respectively plugged into and matched with the two plug-in columns.

[0007] Preferably, the piston assembly includes a connecting tube and a piston column, one end of the connecting rod is fixedly connected to the rotating ring, and the piston column is plugged into the other end of the connecting tube.

[0008] Preferably, the noise reduction mechanism includes a hollow plate, a first arc plate, an L-shaped connecting rod, a second arc plate and two connecting shafts, the hollow plate is fixedly arranged at the bottom of the engine body, the second arc plate is slidably arranged inside the hollow plate, one end of the two connecting shafts is fixedly arranged on the second arc plate, the first arc plate is fixedly arranged at the other end of the two connecting shafts, and the L-shaped connecting rod is fixedly arranged at the bottom of the first arc plate.

[0009] Preferably, the shock absorbing mechanisms include two shock absorbing springs, two spring columns, two hollow columns, two oil storage boxes and a mounting frame. The mounting frame is fixedly arranged inside the motorcycle body, the two oil storage boxes are fixedly arranged on the mounting frame, the two hollow columns are respectively fixedly arranged on the top of the two oil storage boxes, the two spring columns are plugged into the inside of the hollow columns, and the two shock absorbing springs are respectively sleeved on the outer walls of the two spring columns.

[0010] Preferably, the adjustment mechanism includes an adjustment component, two tapered rods and two screws. The adjustment component is arranged at the bottom of the shock absorbing mechanism. The two screws are respectively threadedly arranged at the bottom of the corresponding oil storage box, and the two tapered rods are fixedly arranged at the top of the two screws.

[0011] Preferably, the adjustment assembly includes a connecting plate, two adjusting gears and an adjusting rack, the connecting plate is fixedly arranged on the end of the piston column, the adjusting rack is fixedly arranged on the connecting plate, and the adjusting gear is fixedly arranged on the bottom of the screw.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] (1) The present invention realizes the adaptive adjustment of the noise reduction effect according to the rotation speed of the engine body through the hollow plate, the first arc plate, the L-shaped connecting rod, the second arc plate and the two connecting shafts. It does not require manual adjustment, has strong applicability, and is convenient and fast;

[0014] (2) The present invention realizes adaptive adjustment of the shock absorption damping size according to the rotation speed of the output shaft of the engine body by arranging a shock absorption spring, two spring columns, two hollow columns, two oil storage boxes, a mounting frame, a tapered rod, two screws, a connecting plate, two adjustment gears and an adjustment rack, with a high degree of automation and convenient and fast operation;

[0015] (3) The present invention realizes automatic determination of the engine rotation speed based on the principle of centrifugal force by arranging two arc-shaped plates, two plug-in columns, two plug-in springs, two counterweights, two sleeve rods, two sleeve rods, a rotating ring and an oil cylinder, thereby facilitating subsequent adaptive adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic cross-sectional view of the rotation speed determination mechanism of the present invention;

[0018] Figure 3 This is a schematic structural diagram of the positional relationship between the shock absorbing mechanism and the regulating mechanism of the present invention;

[0019] Figure 4 Schematic diagram of the noise reduction mechanism of the present invention;

[0020] Figure 5 It is a schematic cross-sectional structural diagram of the noise reduction mechanism of the present invention.

[0021] In the figure: 1. engine body; 2. speed judgment mechanism; 21. arc plate; 22. plug-in column; 23. plug-in spring; 24. counterweight; 25. sleeve rod; 26. sleeve rod; 27. rotating ring; 28. oil cylinder; 3. disc; 4. adjustment mechanism; 41. connecting plate; 42. tapered rod; 43. screw; 44. adjusting gear; 45. adjusting rack; 5. noise reduction mechanism; 51. hollow plate; 52. first arc plate; 53. L-shaped connecting rod; 54. second arc plate; 55. connecting shaft; 6. shock absorbing mechanism; 61. shock absorbing spring; 62. spring column; 63. hollow column; 64. oil storage box; 65. mounting bracket; 7. connecting pipe; 71. piston column. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 5The present invention provides an embodiment of a noise-reducing shock absorber for a motorcycle engine, comprising a motorcycle body and an engine body 1. A disc 3 is fixedly mounted on the sidewall of the engine body 1. A speed determination mechanism 2 is mounted on the end of the engine output shaft, and a piston assembly is mounted on the end of the speed determination mechanism 2. A noise reduction mechanism 5 is fixedly mounted on the bottom of the engine body 1. A shock absorption mechanism 6 is mounted on the bottom of the noise reduction mechanism 5, and an adjustment mechanism 4 is mounted on the bottom of the shock absorption mechanism 6. As the power frequency of the engine body 1 increases, the rotational speed of the drive shaft increases. This increase in the rotational speed of the drive shaft drives the speed determination mechanism 2 to rotate synchronously. Under the centrifugal force of the speed determination mechanism 2, the oil inside the piston assembly is drawn into the speed determination mechanism 2, causing the piston assembly to activate the adjustment mechanism 4. The adjustment mechanism 4 adjusts the shock absorption damping of the shock absorption mechanism 6. Simultaneously, the adjustment mechanism 4 drives air out of the noise reduction mechanism 5, thereby adaptively adjusting the shock absorption damping and noise reduction effect according to the rotational speed of the engine body 1.

[0024] Specifically, the speed judgment mechanism 2 includes two arc-shaped plates 21, two plug-in columns 22, two plug-in springs 23, two counterweights 24, two sleeve rods 25, two sleeve rods 26, a rotating ring 27 and an oil cylinder 28. The oil cylinder 28 is fixedly arranged at the end of the output shaft of the engine body 1, and the two sleeve rods 26 are fixedly connected and arranged on the side walls of the oil cylinder 28. The two sleeve rods 25 are respectively inserted into the two sleeve rods 26. The two arc-shaped plates 21 are located on the inner side wall of the disc 3 for limited sliding. One end of the two plug-in columns 22 is respectively fixed on the two arc-shaped plates 21. The two plug-in springs 23 are respectively sleeved on the two plug-in rods. The two counterweights 24 are respectively fixed on one end of the two sleeve rods 25 close to the arc-shaped plate 21. The two sleeve rods 25 are respectively plugged into and matched with the two plug-in columns 22. By rotating the output shaft of the engine body, the oil cylinder 28 is driven to rotate synchronously, and the rotation of the oil cylinder 28 drives the sleeve rod 26, the sleeve rod 25, the plug rod and the counterweight 24 to rotate synchronously. As the speed increases, the centrifugal force increases synchronously, so that the counterweight 24 drives the sleeve rod 25 to gradually be sleeved on the plug rod, and the counterweight 24 compresses the plug spring 23, and the sleeve rod 25 moves to suck the oil inside the oil cylinder 28 into the sleeve rod 26; it realizes the automatic judgment of the engine rotation speed according to the principle of centrifugal force, so that it is convenient to adaptively adjust the shock absorption and noise reduction according to the rotation speed of the engine body 1.

[0025] Specifically, the piston assembly includes a connecting tube 7 and a piston rod 71. One end of the connecting rod is fixedly connected to the rotating ring 27, and the piston rod 71 is plugged into the other end of the connecting tube 7. The oil in the oil cylinder 28 is sucked into the sleeve rod 26 through the sleeve rod 25, so that the oil in the connecting tube 7 forms a negative pressure, which drives the piston rod 71 toward the connecting rod.

[0026] Specifically, the noise reduction mechanism 5 includes a hollow plate 51, a first curved plate 52, an L-shaped connecting rod 53, a second curved plate 54, and two connecting shafts 55. The hollow plate 51 is fixedly arranged at the bottom of the engine body 1, and the second curved plate 54 is slidably arranged inside the hollow plate 51. One end of the two connecting shafts 55 is fixedly arranged on the second curved plate 54, and the first curved plate 52 is fixedly arranged at the other end of the two connecting shafts 55. The L-shaped connecting rod 53 is fixedly arranged at the bottom of the first curved plate 52. The movement of the piston column 71 drives the L-shaped connecting rod 53 and the first curved plate 52 to move synchronously toward the disk 3, and synchronously drives the connecting shaft 55 and the second curved plate 54 to move. The movement of the second curved plate 54 squeezes out the air inside the hollow plate 51. As the air density inside the hollow plate 51 decreases, the sound propagation efficiency is reduced, achieving the effect of noise reduction. The noise reduction effect is adaptively adjusted according to the rotation speed of the engine body 1, without the need for manual adjustment, and has strong applicability, convenience, and speed.

[0027] Specifically, the shock absorbing mechanism 6 includes two shock absorbing springs 61, two spring columns 62, two hollow columns 63, two oil storage boxes 64 and a mounting bracket 65. The mounting bracket 65 is fixedly arranged inside the motorcycle body, the two oil storage boxes 64 are fixedly arranged on the mounting bracket 65, the two hollow columns 63 are respectively fixedly arranged on the top of the two oil storage boxes 64, the two spring columns 62 are plugged into the inside of the hollow columns 63, and the two shock absorbing springs 61 are respectively sleeved on the outer walls of the two spring columns 62.

[0028] Specifically, the adjustment mechanism 4 includes an adjustment assembly, two tapered rods 42, and two screws 43. The adjustment assembly is disposed at the bottom of the shock-absorbing mechanism 6. The two screws 43 are threadedly mounted on the bottom of corresponding oil reservoirs 64, and the two tapered rods 42 are fixedly mounted on the tops of the two screws 43. The engine body 1 drives the spring column 62 downward to synchronously compress the shock-absorbing spring 61. It is worth noting that the bottom of the hollow column 63 is provided with an oil outlet hole that communicates with the oil reservoir 64, allowing the spring column 62 to squeeze the oil inside the hollow column 63 into the oil reservoir 64, thereby achieving a shock-absorbing effect on the engine body 1.

[0029] Specifically, the adjustment assembly includes a connecting plate 41, two adjustment gears 44, and an adjustment rack 45. The connecting plate 41 is fixedly mounted at the end of the piston column 71, the adjustment rack 45 is fixedly mounted on the connecting plate 41, and the adjustment gear 44 is fixedly mounted at the bottom of the screw 43. The movement of the piston column 71 drives the connecting plate 41 to move, which in turn drives the adjustment rack 45 to move, which in turn drives the adjustment gear 44 to rotate, which in turn drives the screw 43 to rotate, which in turn drives the tapered column to insert into the oil outlet hole, thereby reducing the diameter of the oil outlet hole, thereby reducing the oil delivery rate and increasing the shock absorber damping. This achieves adaptive adjustment of the shock absorber damping size according to the rotational speed of the output shaft of the engine body 1, with a high degree of automation and convenient and quick operation.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A noise-reducing shock absorber for a motorcycle engine, comprising a motorcycle body and an engine body, characterized in that: A disc is fixedly provided on the side wall of the engine body, a speed judgment mechanism is provided on the end of the engine output shaft, a piston assembly is provided on the end of the speed judgment mechanism, a noise reduction mechanism is fixedly provided on the bottom of the engine body, a shock absorbing mechanism is provided on the bottom of the noise reduction mechanism, and an adjustment mechanism is provided on the bottom of the shock absorbing mechanism.

2. A noise-reducing shock absorber for a motorcycle engine according to claim 1, characterized in that: The speed judgment mechanism includes two arc-shaped plates, two plug-in columns, two plug-in springs, two counterweights, two sleeve rods, two sleeve rods, a rotating ring and an oil cylinder. The oil cylinder is fixedly arranged at the end of the output shaft of the engine body, the two sleeve rods are fixedly connected and arranged on the side wall of the oil cylinder, the two sleeve rods are respectively plugged into the inside of the two sleeve rods, the two arc-shaped plates are located on the inner side wall of the disc and slide within a limited position, one end of the two plug-in columns is respectively fixedly arranged on the two arc-shaped plates, the two plug-in springs are respectively sleeved on the two plug-in rods, the two counterweights are respectively fixedly arranged on one end of the two sleeve rods close to the arc-shaped plate, and the two sleeve rods are respectively plugged into and matched with the two plug-in columns.

3. The noise-reducing shock absorber for a motorcycle engine according to claim 2, characterized in that: The piston assembly includes a connecting tube and a piston column. One end of the connecting rod is fixedly connected and arranged on the rotating ring, and the piston column is plugged and arranged on the other end of the connecting tube.

4. The noise-reducing shock absorber for a motorcycle engine according to claim 1, characterized in that: The noise reduction mechanism includes a hollow plate, a first arc plate, an L-shaped connecting rod, a second arc plate and two connecting shafts. The hollow plate is fixedly arranged at the bottom of the engine body, the second arc plate is slidably arranged inside the hollow plate, one end of the two connecting shafts is fixedly arranged on the second arc plate, the first arc plate is fixedly arranged at the other end of the two connecting shafts, and the L-shaped connecting rod is fixedly arranged at the bottom of the first arc plate.

5. The noise-reducing shock absorber for a motorcycle engine according to claim 1, characterized in that: The shock-absorbing mechanisms each include two shock-absorbing springs, two spring columns, two hollow columns, two oil storage boxes and a mounting frame. The mounting frame is fixedly arranged inside the motorcycle body, the two oil storage boxes are fixedly arranged on the mounting frame, the two hollow columns are respectively fixedly arranged on the top of the two oil storage boxes, the two spring columns are plugged into the inside of the hollow columns, and the two shock-absorbing springs are respectively sleeved on the outer walls of the two spring columns.

6. The noise-reducing shock absorber for a motorcycle engine according to claim 5, characterized in that: The adjustment mechanism includes an adjustment component, two tapered rods and two screws. The adjustment component is arranged at the bottom of the shock absorbing mechanism. The two screws are respectively threadedly arranged at the bottom of the corresponding oil storage box, and the two tapered rods are fixedly arranged on the top of the two screws.

7. The noise-reducing shock absorber for a motorcycle engine according to claim 6, characterized in that: The adjustment assembly includes a connecting plate, two adjusting gears and an adjusting rack. The connecting plate is fixedly arranged on the end of the piston column, the adjusting rack is fixedly arranged on the connecting plate, and the adjusting gear is fixedly arranged on the bottom of the screw.

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