CN208858894U - A kind of new gear group - Google Patents

Abstract

The utility model relates to technical field of mechanical transmission, refer in particular to a kind of new gear group, including bottom plate, pedestal and gear, pedestal is installed on bottom plate, the gear is installed on pedestal, the shape of bottom plate and base plate is circle, bottom plate, pedestal and gear are the setting of same axle center, several gear teeth are evenly equipped on the outside of gear, several equally distributed connecting holes are offered on bottom plate, cylindrical hole is offered in the middle part of the bottom plate, one end of cylindrical hole forms circular conical surface, the inner wall of the cylindrical hole is embedded with plastic hoop, the internal diameter of plastic hoop is equal to the aperture of the cylindrical hole, keyway is offered in the cylindrical hole, the end face of gear forms limited post, the utility model is embedded with plastic hoop by the inner wall in cylindrical hole, loss of weight is played in the setting of plastic hoop, the effect of shock-absorbing noise abatement, and plastics The coefficient of friction of ring is small, wears small, long service life, improves the service life of gear.

Description

A kind of new gear group

Technical field

The utility model relates to technical field of mechanical transmission, refer in particular to a kind of new gear group.

Background technique

Gear is the medium being driven between machinery, and gear mechanism is to transmit movement and power between two axis, for not Tongfang The transmitting of position kinetic energy provides possibility, and due to gear-driven efficiency height, transmission ratio is accurate, long service life, safe and reliable, Therefore gear drive equipment is widely used in all trades and professions, and type and size are varied, the application requirement for needing to meet It is different, but key components and parts one of of the gear as various drive apparatus, its performance quality are direct to a certain extent Determine the service life of whole equipment.

And the gear teeth of gear can generate very strong bite force under the action of the rotary force of shaft, therefore mutual between gear During being meshed, noise can be generated, and just will appear great frictional force between the gear teeth, the gear teeth is caused to be easy to occur Abrasion condition, since the required precision of the gear mesh gear teeth is higher, the gear teeth can not be used again after there is larger abrasion, be needed More renew gear, and the gear after wearing can not be used again substantially, can only be recycled as waste product, be increased to a certain extent The maintenance cost of mechanical equipment.

On the other hand, gear set will receive abrasion in prolonged rotation process, and improve the stabilization of gear set rotation Property, mitigate the weight of gear set, the abrasion of gear can be effectively reduced, to improve the service life of gear.

Summary of the invention

The purpose of the utility model is to provide a kind of simple structure and convenient processings, anti-wear and small noise new gear Group.

Purpose of the utility model is realized as follows: a kind of new gear group, including bottom plate, pedestal and gear sheet Body is equipped with pedestal on the bottom plate, the gear is equipped on pedestal, the shape of the bottom plate and base plate is circle Shape, the bottom plate, pedestal and gear are the setting of same axle center, are evenly equipped with several wheels on the outside of the gear Tooth offers several equally distributed connecting holes on the bottom plate, offers cylindrical hole in the middle part of the bottom plate, and the one of cylindrical hole End forms circular conical surface, and the inner wall of the cylindrical hole is embedded with plastic hoop, and the internal diameter of plastic hoop is equal to the aperture of the cylindrical hole, Keyway is offered in cylindrical hole, the end face of the gear forms limited post.

Preferably, the protrusion of several same shape sizes is respectively equipped on the field of conjugate action of each gear teeth, protrusion is logical Microplasma cladding is crossed to be fixed on the gear teeth, the material of the protrusion be it is iron-based or Ni-based, the protrusion is uniformly distributed On the field of conjugate action.

Preferably, the protrusion is hemispherical, it is described protrusion be in matrix arrangement, adjacent two it is described protrusion between It is equidistant.

Preferably, the distance between two adjacent described protrusions are 1-3 times of the projection diameter.

Preferably, the spacing between adjacent two protrusions is 1-3mm.

Preferably, the gear is elastic material, and the gear teeth include teeth, the T-shaped block that is connected with teeth；Institute State the outer surface that teeth are located at gear；The T-shaped block is in gear；The gear is wrapped with metal Layer；The metal layer is equipped with several limit holes being circularly and evenly distributed and match with teeth.

Preferably, it is coated with wearing layer in the teeth, oil guiding hole is equipped in the teeth, oil guiding hole is through-hole, through-hole Two fields of conjugate action of the teeth are connected to, the wearing layer is to plate hard silver layer or Hard Chromium Coating or plating rhodium layer.

Preferably, the quantity of the gear teeth is eight, and the quantity of the connecting hole is four.

Preferably, sound insulation hole is offered in the pedestal, is filled with aluminium foil sound-proof material in sound insulation hole.

Preferably, the aluminium foil sound-proof material includes the first aluminium foil layer set gradually from the inside to the outside, sponge puigging, prevents The water-repellent modified eptfe layer of oil, meltblown polypropylene fibres thin layer pass through adhesive bonding between each layer；Described first The outer surface of aluminium foil layer forms the diverging portion at several intervals, the sponge puigging with a thickness of 0.08-0.17mm, the sea Continuous puigging, the ontology with layer structure, layered structure are from top to bottom followed successively by spongy layer, rubber damping plate layer, the Two aluminium foil layers, each layer are bonded together；The spongy layer is the honeycomb being made of concave-convex surface curved body；The rubber resistance Buddhist nun's plate layer is the plate structure being made of rubber；Second aluminium foil layer is made of aluminium foil.

Compared with the prior art, the utility model has prominent and beneficial technical effects that:

1, the utility model is embedded with plastic hoop by the inner wall in cylindrical hole, and the internal diameter of plastic hoop is equal to the cylindrical hole Aperture, the inner wall of the non-bulging cylindrical hole of the inner wall of such plastic hoop, the setting of plastic hoop plays the work of loss of weight, shock-absorbing noise abatement With, and the coefficient of friction of plastic hoop is small, wears small, long service life, improves the service life of gear.

2, the utility model does not destroy the structure of gear by the design of the filling aluminium foil sound-proof material in pedestal, The noise that gear operation generates further is also reduced to reduce vibration frequency so that gear operation is quiet, be conducive to extend use Service life protects environment.

3, the utility model on the field of conjugate action of gear by being arranged raised design, in gear-driven engagement process In, the protrusion is worn first, therefore can effectively slow down the contact area between gear meshing portions position, advantageously reduce gear The contact stress of site of engagement and time of contact, avoid the occurrence of fatigue crack, while there are gap between several protrusions, The gap site increases the storage capacity of lubricating oil, further slows down the abrasion of the field of conjugate action, to promote retarder Transmission efficiency improves the wearability of the gear teeth, improves the safety that gear uses, extends the service life of gear.

4, the utility model can store lubricating oil, and lubricate the flank of tooth at runtime by the design of oil guiding hole, guarantee tooth The good lubrication of wheel advantageously reduces the abrasion between gear, prolongs the service life.

Detailed description of the invention

Fig. 1 is the schematic perspective view of the utility model.

Fig. 2 is the schematic cross-sectional view of the utility model.

Fig. 3 is the schematic perspective view of the utility model other direction.

Fig. 4 is the schematic perspective view of teeth.

Fig. 5 is the structural schematic diagram of the positive apparent direction of teeth.

Fig. 6 is the schematic structural cross-sectional view of gear.

Fig. 7 is the schematic structural cross-sectional view of pedestal.

Fig. 8 is the structural schematic diagram of aluminium foil sound-proof material.

Fig. 9 is the structural schematic diagram of sponge puigging.

The following drawings is marked to mark on it in conjunction with attached drawing: 1- bottom plate；2- pedestal；3- gear；The 4- gear teeth；5- connection Hole；6- cylindrical hole；7- limited post；8- sound insulation hole；9- aluminium foil sound-proof material；10- protrusion；The first aluminium foil layer of 11-；12- sponge sound insulation Layer；13- grease-proof and waterproof is modified eptfe layer；14- meltblown polypropylene fibres thin layer；17- diverging portion；18- teeth； 19-T shape block；20- metal layer；21- limit hole；22- oil guiding hole；23- spongy layer；24- rubber damping plate layer；The second aluminium foil of 25- Layer；26- keyway；27- plastic hoop；28- circular conical surface.

Specific embodiment

The utility model is further described with specific embodiment with reference to the accompanying drawing, referring to Fig. 1~9:

A kind of new gear group, including bottom plate 1, pedestal 2 and gear 3 are equipped with pedestal 2, bottom on the bottom plate 1 The gear 3 is installed on seat 2, the shape of the bottom plate 1 and pedestal 2 is circle, the bottom plate 1, pedestal 2 and tooth Ontology 3 is taken turns as the setting of same axle center, slow-roll stabilization, the outside of the gear 3 is evenly equipped with several gear teeth 4, the bottom plate 1 On offer several equally distributed connecting holes 5, offer cylindrical hole 6 in the middle part of the bottom plate 1, one end molding of cylindrical hole 6 There is circular conical surface 28, the inner wall of the cylindrical hole 6 is embedded with plastic hoop 27, and the internal diameter of plastic hoop 27 is equal to the hole of the cylindrical hole 6 The work of loss of weight, shock-absorbing noise abatement is played in diameter, the inner wall of the non-bulging cylindrical hole 6 of the inner wall of such plastic hoop 27, the setting of plastic hoop 27 With, and the coefficient of friction of plastic hoop 27 is small, wears small, long service life, offers keyway 26 in cylindrical hole 6, cylindrical hole 6 rises It to the effect of connection other component, can be preferably fixedly connected by keyway 26, the end face molding of the gear 3 is limited Position column 7, limited post 7 are mounted in circular hole, are rotated convenient for gear set.

The bottom plate 1, pedestal 2 and gear 3 of the utility model are the setting of same axle center, in the rotation, can More stable, and the shape of bottom plate 1 and pedestal 2 is circle, rotation when, has better stability, obtains by opening The weight of gear set is alleviated in the case where not influencing gear set strength structure equipped with several equally distributed connecting holes 5 Amount, cylindrical hole 6 are fixedly connected with rotating member, key compatible with the keyway 26 are formed on rotating member, passes through key and keyway Cooperation, the transmission connection of the rotating member Yu cylindrical hole 6 can be realized, so that the connection of rotating member and cylindrical hole 6 is very square Just, rotating member drives gear set rotation by the key,

In actual use, since the inner wall of cylindrical hole 6 is embedded with plastic hoop 27, plastic hoop 27 is fitted in cylindrical hole 6 On inner hole wall, the internal diameter of the plastic hoop 27 of setting is equal to the aperture of the cylindrical hole 6, the non-bulging circle of inner wall of such plastic hoop 27 The inner wall of post holes 6 does not interfere with the connection of cylindrical hole 6 Yu rotating member, is opened up out in cylindrical hole 6 for being embedded and plastic hoop The groove of 27 adaptations, plastic hoop 27 are arranged in the groove, in the case where not influencing this body structure of gear, use plastics material Matter alleviates the weight of gear set instead of original metal material, and the coefficient of friction of plastics is smaller, when one end of rotating member is pacified When in cylindrical hole 6, the end thereof contacts with the rotating member are plastic hoop 27, therefore reduce rubbing between the two Power to be wiped, the noise because of friction, vibration and generation is also reduced, plastics have good damping capaicty, and it is flexible, light, it is rich Elasticity, recovery is good, and external impact force can be absorbed and dispersed by being bent, and achievees the effect that buffering, therefore plastic hoop 27 Setting play the role of loss of weight, shock-absorbing and noise abatement, and the coefficient of friction of plastic hoop 27 is small, wears small, has service life Long advantage can have gap between rotating member and the circular conical surface 28, can be filled with the lubricating oil of lubrication shaft, favorably in gap It being operated in the long-time of gear set, the molding limited post 7 of the gear set other end is rotatably disposed in circular hole, in rotation, tooth Wheel group does not deviate by position, improves stability when rotation, is conducive to the long-time running of gear, improves service life.

Preferably, the protrusion 10 of several same shape sizes is respectively equipped on the field of conjugate action of each gear teeth 4, protrusion 10 are fixed on the gear teeth 4 by microplasma cladding, raised 10 material be it is iron-based or Ni-based, described raised 10 It is evenly distributed on the field of conjugate action.

The technical program by the field of conjugate action of the gear teeth 4 be arranged protrusion 10 design, in gear-driven engagement process In, described raised 10 are worn first, therefore can effectively slow down the contact area between 4 site of engagement of the gear teeth, advantageously reduce The contact stress of 4 site of engagement of the gear teeth and time of contact avoid the occurrence of fatigue crack, while depositing between several described raised 10 In gap, the gap site increases the storage capacity of lubricating oil, further slows down the abrasion of the field of conjugate action, subtracts to be promoted The transmission efficiency of fast device improves the wearability of the gear teeth 4, improves the safety that gear set uses, extends the use of gear set Service life.

Preferably, described raised 10 is hemispherical, and described raised 10 be in matrix arrangement, and adjacent two described raised 10 The distance between it is equal.

The technical program specifically describes the structure of protrusion 10, and all 10 size shapes of protrusion are all the same, is convenient for gear Between engagement.

Preferably, adjacent two described raised the distance between 10 are 1-3 times of raised 10 diameter.

The technical program further describes the positions of 10 setting of protrusion, there are gap between protrusion 10, adjacent two A described raised the distance between 10 be 1.5 times of raised 10 diameter, and the empty distance stayed can increase between two protrusions 10 Add the lubrication area of lubricating oil, there is preferable lubricant effect.

Preferably, the spacing between adjacent two described raised 10 is 1-3mm.

It is 3mm that the technical program, which further describes the spacing between protrusion 10, is conducive to reduce the friction between gear Index improves rub proofness, slows down abrasion.

Preferably, the gear 3 is elastic material, the T that the gear teeth 4 include teeth 18, are connected with teeth 18 Shape block 19；The teeth 18 are located at the outer surface of gear 3；The T-shaped block 19 ensure that the gear teeth 4 in gear 3 The stability connected between gear 3；The gear 3 is wrapped with metal layer 20；The metal layer 20 is equipped with Several limit holes 21 for being circularly and evenly distributed and matching with teeth 18, the gear teeth 4 are metal material, and gear 3 is logical Injection molding is crossed to be connected with the gear teeth 4.

The technical program specifically describes the structure of gear 3, and gear 3 is elastic material, therefore when gear is nibbled When conjunction, the engagement force generated between the two can make the gear teeth being mounted in gear 34 that a certain range of offset occur, should Offset buffers the engagement force generated, and the strong friction occurred between script gear can also disappear, when reducing engagement every time Abrasion, extend the service life of gear.

In practical work process, due to being wrapped with metal layer 20 in gear 3, if the metal layer 20 is equipped with The dry limit hole 21 for being circularly and evenly distributed and matching with teeth 18, when the gear teeth 4 buffer, the offset of the gear teeth 4 can quilt Limit hole 21 limits, therefore is not in that the gear teeth 4 deviate excessively and lead to the case where can not effectively engaging between gear.

Preferably, it is coated with wearing layer in the teeth 18, oil guiding hole 22 is equipped in the teeth 18, oil guiding hole 22 is logical Hole, through-hole are connected to two fields of conjugate action of the teeth 18, and the wearing layer is to plate hard silver layer or Hard Chromium Coating or plating rhodium layer.

The technical program increases the wear-resisting property of gear by being coated with the design of wearing layer in teeth 18, setting Oil guiding hole 22 can store lubricating oil, penetrate into the field of conjugate action in gear operation, guarantee good lubricating condition, effectively reduce Abrasion, prolongs the service life, and hardness, wear-resisting, resistance to mildly anti-corrosion etc. the performances of part are improved using the characteristic of chromium.

Preferably, the quantity of the gear teeth 4 is eight, and the quantity of the connecting hole 5 is four.

The technical program describes the quantity of the gear teeth 4 and the quantity of connecting hole 5 in detail, using the gear teeth 4 of eight quantity, this When transmission efficiency highest, and use the connecting hole 5 of four quantity, at this point, in the case where not influencing gear set strength structure, The weight of gear set is alleviated, connection is reliable.

Preferably, sound insulation hole 8 is offered in the pedestal 2, is filled with aluminium foil sound-proof material 9 in sound insulation hole 8.

It in gear set operational process, can make a noise, the utility model in pedestal 2 by filling aluminium foil sound-proof material 9 Design, do not destroy the structure of gear 3, further also reduce gear operation generate noise, aluminium foil sound-proof material 9 use In absorbing noise, so that gear operation is quiet, vibration frequency is reduced, is conducive to extend service life, protects environment.

Preferably, the aluminium foil sound-proof material 9 includes the first aluminium foil layer 11, the sponge puigging set gradually from the inside to the outside 12, grease-proof and waterproof is modified eptfe layer 13, meltblown polypropylene fibres thin layer 14, is glued between each layer by adhesive It connects；The outer surface of first aluminium foil layer 11 forms the diverging portion 17 at several intervals, the sponge puigging 12 with a thickness of 0.08-0.17mm, the sponge puigging 12, the ontology with layer structure, layered structure are from top to bottom followed successively by sea Continuous layer 23, rubber damping plate layer 24, the second aluminium foil layer 25, each layer are bonded together；The spongy layer 23 is by concave-convex surface song The honeycomb that face body is constituted；The rubber damping plate layer 24 is the plate structure being made of rubber；Second aluminium foil layer 25 It is made of aluminium foil.

The technical program describes the structure of aluminium foil sound-proof material 9 in detail, melt-blown high polymer superfine fibre (PP polypropylene or PET polyester) random melt-blown distribution is bonded together to form thin layer micropore clearance material, white appearance, smooth, neither too hard, nor too soft, material Expect that fibre fineness is 1~10 μm, there is bigger specific surface area, higher porosity (> 75%), superfine fibre random distribution Provide more hot-gluing machine meetings between fiber.This melt-blown high polymer superfine fibre and expanded PTFE (ePTFE) is thin Film (micropore diameter at 0.01~20 μm, every square centimeter on have several hundred million micro-porous permeable gaps) is compound.It is meltblown high polymer superfine fibre After layer is with expanded PTFE (ePTFE) Film laminated, its structure is: have in material it is a large amount of, interpenetrate, from Table is to inner micropore, namely with certain gas permeability.The sound-absorbing principle of more micropore matter sound-absorbing materials is to vibrate air from slot When middle disengaging, sound can be transformed into thermal energy, consumed by air molecule and material and self friction.Kong Yue much closeer, sound-absorbing energy Power is stronger, a kind of specific function new material of high performance efficient full range sound-absorbing is formd, when sound wave incident is new to this more micropore When material surface, cause the air vibration in micropore, it, will due to the viscous resistance and conduction of heat of frictional resistance and air Quite a few sound can be converted into thermal energy, and sound equipment acoustic pressure reduces 4~6dB in all frequency range, and full range sound-absorbing effect ten is clearly demarcated Aobvious, especially centering low frequency noise absorbs more preferable, is applied the noise on transmission device, indoor environment, automobile or electromechanical equipment It is big to be absorbed degree, ambient noise will greatly reduce, and give one comfortable environment of people.

The honeycomb that the spongy layer 23 is constituted using concave-convex surface curved body, compound rubber damping material use, can Play the effect of sound insulation and noise reduction.

The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model Claimed range is defined by the appending claims and its equivalent thereof.

Claims (10)

1. a kind of new gear group, which is characterized in that including bottom plate (1), pedestal (2) and gear (3), the bottom plate (1) it is equipped with pedestal (2), is equipped on pedestal (2) gear (3) on, the shape of the bottom plate (1) and pedestal (2) It is circle, the bottom plate (1), pedestal (2) and gear (3) are that same axle center is arranged, outside the gear (3) Side is evenly equipped with several gear teeth (4), several equally distributed connecting holes (5), the bottom plate are offered on the bottom plate (1) (1) middle part offers cylindrical hole (6), and one end of cylindrical hole (6) forms circular conical surface (28), and the inner wall of the cylindrical hole (6) is embedding Equipped with plastic hoop (27), the internal diameter of plastic hoop (27) is equal to the aperture of the cylindrical hole (6), offers in the cylindrical hole (6) The end face of keyway (26), the gear (3) forms limited post (7).

2. a kind of new gear group according to claim 1, it is characterised in that: on the field of conjugate action of each gear teeth (4) It is respectively equipped with the protrusion (10) of several same shape sizes, raised (10) are fixed on the gear teeth by microplasma cladding (4) on, it is described protrusion (10) material be it is iron-based or Ni-based, it is described protrusion (10) be evenly distributed on the field of conjugate action.

3. a kind of new gear group according to claim 2, it is characterised in that: the protrusion (10) is hemispherical, described Raised (10) are in matrix arrangement, and the distance between adjacent two raised (10) are equal.

4. a kind of new gear group according to claim 3, it is characterised in that: between adjacent two raised (10) Distance be 1-3 times of described raised (10) diameter.

5. a kind of new gear group according to claim 4, it is characterised in that: between adjacent two raised (10) Spacing be 1-3mm.

6. a kind of new gear group according to claim 1, it is characterised in that: the gear (3) is elastic material, The gear teeth (4) include teeth (18), the T-shaped block (19) being connected with teeth (18)；The teeth (18) are located at gear (3) outer surface；The T-shaped block (19) is in gear (3)；The gear (3) is wrapped with metal layer (20)； The metal layer (20) is equipped with several limit holes (21) for being circularly and evenly distributed and matching with teeth (18).

7. a kind of new gear group according to claim 6, it is characterised in that: it is coated with wearing layer on the teeth (18), It is equipped with oil guiding hole (22) on the teeth (18), oil guiding hole (22) is through-hole, and two of the through-hole connection teeth (18) nibble Conjunction face, the wearing layer are to plate hard silver layer or Hard Chromium Coating or plating rhodium layer.

8. a kind of new gear group according to claim 7, it is characterised in that: the quantity of the gear teeth (4) is eight, institute The quantity for stating connecting hole (5) is four.

9. a kind of new gear group according to claim 1, it is characterised in that: offer sound insulation hole in the pedestal (2) (8), aluminium foil sound-proof material (9) are filled in sound insulation hole (8).

10. a kind of new gear group according to claim 9, it is characterised in that: the aluminium foil sound-proof material (9) includes, from It is interior to the modified eptfe layer of the first aluminium foil layer (11), sponge puigging (12), grease-proof and waterproof that set gradually outside (13), meltblown polypropylene fibres thin layer (14) pass through adhesive between each layer and are bonded；The outer surface of first aluminium foil layer (11) Form the diverging portion (17) at several intervals, the sponge puigging (12) with a thickness of 0.08-0.17mm, the sponge sound insulation Layer (12), the ontology with layer structure, layered structure are from top to bottom followed successively by spongy layer (23), rubber damping plate layer (24), the second aluminium foil layer (25), each layer are bonded together；The spongy layer (23) is the honeycomb being made of concave-convex surface curved body Structure；The rubber damping plate layer (24) is the plate structure being made of rubber；Second aluminium foil layer (25) is by aluminium foil structure At.