CN216742699U

CN216742699U - Compound noise reduction gear

Info

Publication number: CN216742699U
Application number: CN202122914074.4U
Authority: CN
Inventors: 李�荣
Original assignee: Shenzhen Pufeite Precision Products Co ltd
Current assignee: Shenzhen Pufeite Precision Products Co ltd
Priority date: 2021-11-25
Filing date: 2021-11-25
Publication date: 2022-06-14
Anticipated expiration: 2031-11-25

Abstract

The utility model discloses a compound gear of making an uproar that falls, including the gear main part, gear main part outside circumference array has a plurality of teeth of a cogwheel, gear main part coaxial arrangement has the vibration/noise reduction circle, vibration/noise reduction circle coaxial arrangement has central rigid body, central rigid body outside array has a plurality of rigid body card holes, the coaxial splined hole of having seted up of central rigid body, a plurality of spring holes have been seted up to gear main part inside, spring hole bottom fixed mounting has damping spring, one side fixed mounting that damping spring kept away from spring hole bottom has the fastener, the fastener passes the vibration/noise reduction circle and stretches into rigid body card hole. The utility model discloses a when the gear received external force and produced vibrations, vibration/noise reduction circle and damping spring received the oppression and warp to absorb the vibrations energy, guarantee the job stabilization nature of this gear, fall the noise simultaneously on the noise source is overhead.

Description

Compound noise reduction gear

Technical Field

The utility model relates to a gear manufacturing technical field especially relates to a compound gear of making an uproar that falls.

Background

Gear refers to a mechanical element on a rim with gears continuously engaged to transmit motion and power. The use of gears in transmissions has long emerged. At the end of the 19 th century, the principle of generating the cutting method and the successive appearance of special machine tools and cutters for cutting teeth by using the principle pay attention to the running stability of gears along with the development of production.

Gears are widely used in mechanical devices due to their excellent transmission performance, excellent life span, and relatively low price. However, when the gear rotates at a high speed, noise can be generated due to vibration of the motor and external vibration, so that surrounding noise pollution is greatly improved, meanwhile, damage to gear teeth of the gear is increased due to the vibration, and the service life of the gear is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a composite noise reduction gear.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a compound gear of making an uproar that falls, includes the gear main part, gear main part outside circumference array has a plurality of teeth of a cogwheel, gear main part coaxial arrangement has the vibration/noise reduction circle, vibration/noise reduction circle coaxial arrangement has central rigid body, central rigid body outside array has a plurality of rigid body card holes, the splined hole has been seted up to central rigid body coaxial, a plurality of spring holes have been seted up to gear main part inside, spring hole bottom end fixed mounting has damping spring, damping spring keeps away from one side fixed mounting of spring hole bottom has the fastener, the fastener passes the vibration/noise reduction circle stretches into rigid body card hole.

Preferably, the gear body consists of a microporous oil absorption layer and a strengthening layer, the matrix of the microporous oil absorption layer is made of high-strength steel, and the strengthening layer is made by carburizing or nitriding the matrix material.

Preferably, the gear teeth are of a straight tooth structure when subjected to a circumferential force.

Preferably, the splined bore keyway is a circumferential array of rectangular slots.

Preferably, the vibration and noise reduction ring is made of a high-temperature-resistant and friction-resistant rubber material.

Preferably, the central rigid body is made of high-strength steel.

Compared with the prior art, the utility model discloses possess following advantage:

when the gear receives external force and produces vibrations, vibration/noise reduction ring and damping spring receive the oppression and warp to absorb the vibrations ability, guarantee the job stabilization nature of this gear, fall the noise simultaneously on the noise source head.

In the use process, the step of timing watering oil is carried out to the gear main part, because the micropore oil absorption layer has the micropore structure and can store lubricating oil to preserve certain oil, make preserved oil ooze to the surface through centrifugal force when high-speed operation, the degree of lubrication when guaranteeing the gear contact.

Drawings

Fig. 1 is a schematic structural view of a composite noise reduction gear provided by the present invention;

fig. 2 is a half-sectional view of a composite noise reduction gear provided by the present invention;

fig. 3 is a partial cross-sectional view of a gear main body of the composite noise reduction gear provided by the present invention;

in the figure: 1. a gear body; 2. a damping and noise-reducing ring; 3. a central rigid body; 4. a spline hole; 5. gear teeth; 6. a spring hole; 7. a damping spring; 8. a fastener; 9. a rigid body clamping hole; 10. a microporous oil absorption layer; 11. a strengthening layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1 to 3, a compound noise reduction gear, including gear main part 1, 1 outside circumference array of gear main part has a plurality of teeth of a cogwheel 5, the teeth of a cogwheel 5 is when receiving the circumference power, for the straight-tooth structure, 1 coaxial arrangement of gear main part has vibration/noise reduction circle 2, vibration/noise reduction circle 2 is made for the rubber material of high temperature resistant antifriction, 2 coaxial arrangements of vibration/noise reduction circle have central rigid body 3, 3 outside arrays of central rigid body have a plurality of rigid body card holes 9, splined hole 4 has been seted up coaxially to central rigid body 3, splined hole 4 keyway is the rectangular channel of circumference array, a plurality of spring holes 6 have been seted up to gear main part 1 is inside, 6 bottom fixed mounting in spring hole has damping spring 7, damping spring 7 keeps away from one side fixed mounting of 6 bottom in spring hole has fastener 8, fastener 8 passes vibration/noise reduction circle 2 and stretches into rigid body card hole 9.

Gear main part 1 comprises micropore oil absorption layer 10 and strengthening layer 11, micropore oil absorption layer 10 base member is high strength steel, in the use, the step of watering oil regularly to gear main part 1, because micropore oil absorption layer 10 has the micropore structure, can preserve certain oil, make the oil of preserving ooze the surface through centrifugal force when high-speed operation, the lubricity when guaranteeing the gear contact, strengthening layer 11 is made through carburizing or nitriding treatment to matrix material, make the 5 contact surfaces of teeth of a cogwheel have higher intensity, reduce the deformation of the 5 contact surfaces of teeth of a cogwheel, guarantee the roughness of the 5 contact surfaces of teeth of a cogwheel, thereby reduce the emergence of vibrations.

Now, the operation principle of the present invention is described as follows:

the utility model discloses during the use through splined hole 4 with this gear fixed mounting on required position, in the rotation, because splined hole 4 with the stress surface share on a plurality of rectangle sides, thereby the atress of gear when using is deformed has been reduced, simultaneously by fastener 8, damping spring 7 and damping noise circle 2's combined action, when the gear received external force and produces vibrations, damping noise circle 2 and damping spring 7 receive the oppression and warp, thereby absorb the vibrations ability, guarantee the job stabilization nature of this gear, it makes an uproar to fall simultaneously on the noise source.

Simultaneously this gear is in the use, the step of watering oil regularly to gear main part 1, because micropore oil absorption layer 10 has the micropore structure, can preserve certain oil, make the oil of preserving ooze the surface through centrifugal force when high-speed operation, the degree of lubrication when guaranteeing the gear contact, strengthening layer 11 is made through carrying out carburization or nitriding treatment to matrix material, make the 5 contact surfaces of teeth of a cogwheel have higher intensity, reduce the deformation of the 5 contact surfaces of teeth of a cogwheel, guarantee the roughness of the 5 contact surfaces of teeth of a cogwheel, thereby reduce the emergence of vibrations.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a compound noise reduction gear, includes gear main part (1), its characterized in that, gear main part (1) outside circumference array has a plurality of teeth of a cogwheel (5), gear main part (1) coaxial arrangement has vibration/noise reduction circle (2), vibration/noise reduction circle (2) coaxial arrangement has central rigid body (3), central rigid body (3) outside array has a plurality of rigid body card holes (9), splined hole (4) have been seted up to central rigid body (3) coaxial, gear main part (1) inside has seted up a plurality of spring holes (6), spring hole (6) bottom fixed mounting has damping spring (7), damping spring (7) are kept away from one side fixed mounting of spring hole (6) bottom has fastener (8), fastener (8) pass vibration/noise reduction circle (2) stretch into rigid body card hole (9).

2. A composite noise reduction gear according to claim 1, wherein the gear body (1) is composed of a microporous oil absorption layer (10) and a strengthening layer (11), the matrix of the microporous oil absorption layer (10) is made of high-strength steel, and the strengthening layer (11) is made by carburizing or nitriding the matrix material.

3. A composite noise reducing gear according to claim 1, characterized in that the teeth (5) are of straight tooth construction when subjected to a circumferential force.

4. A composite noise reducing gear according to claim 1, wherein the splined bore (4) is keyed by a circumferential array of rectangular slots.

5. A composite noise-reducing gear according to claim 1, wherein the vibration-damping and noise-reducing ring (2) is made of a high-temperature-resistant and friction-resistant rubber material.

6. A composite noise reducing gear according to claim 1, characterized in that the central rigid body (3) is made of high strength steel.