CN207034131U - A kind of gear - Google Patents

A kind of gear Download PDF

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Publication number
CN207034131U
CN207034131U CN201721003654.5U CN201721003654U CN207034131U CN 207034131 U CN207034131 U CN 207034131U CN 201721003654 U CN201721003654 U CN 201721003654U CN 207034131 U CN207034131 U CN 207034131U
Authority
CN
China
Prior art keywords
gear
gear mass
mass
peripheral
teeth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201721003654.5U
Other languages
Chinese (zh)
Inventor
蒋兴敖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yuhuan Automobile Gear Plant
Original Assignee
Yuhuan Automobile Gear Plant
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yuhuan Automobile Gear Plant filed Critical Yuhuan Automobile Gear Plant
Priority to CN201721003654.5U priority Critical patent/CN207034131U/en
Application granted granted Critical
Publication of CN207034131U publication Critical patent/CN207034131U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of gear, belongs to field of mechanical technique.It solves the problems such as existing gear vibration and noise reducing is bad.This gear includes gear mass and the teeth being arranged on gear mass outer peripheral face, the middle part of gear mass axially offers axis hole, gear mass side is fixed with damping piece, the opposite side of gear mass has the cone tooth that a circle favours the setting of gear body axis, the inwall of gear mass has the shoulder block of a circle radially protruding, shoulder block is supported on the inner root portion of cone tooth, the outer peripheral face of gear mass also has the convex shoulder positioned at sidepiece of the teeth away from cone tooth and radially protruding, the outer peripheral face vulcanization of convex shoulder is fixed with rubber blanket, and the outer peripheral face of rubber blanket maintains an equal level in the tooth top setting of teeth.The utility model has the advantages of structural strength is high, good operating stability and effect of vibration and noise reduction are good.

Description

A kind of gear
Technical field
The utility model belongs to field of mechanical technique, is related to a kind of gear.
Background technology
The NHH of vehicle(Noise, vibration and comfortableness)Characteristic is to weigh one of most important index of vehicle riding comfort, and car NVH in transmission system is a key factor for influenceing vehicle NVH again.NVH in vehicle drive system mainly by gear, The vibrations such as axle, bearing, housing generation, vibration and impact caused by gear are the emphasis of NVH researchs.Vibrate and make an uproar caused by gear Sound is the result of many factors comprehensive function, and the major way of control is elimination or weakens the vibration for evoking grating of gears, to Caused vibration, noise such as are insulated against sound, shielded and eliminated at the measure.
Such as Chinese patent literature data discloses a kind of gear [application number:200920161431.0;Authorization Notice No.: CN201568549U], it includes discoid gear mass and the teeth being arranged on the excircle of gear mass, the side of gear mass Synchronous combination gear is installed with by screw, the gear mass other end is fixed with damping piece.
Above-mentioned gear can vibration and noise reducing, but overall structure is not high, and bearing capacity is bad, and axial float be present The problem of, job stability is bad, and effect of vibration and noise reduction is still not ideal enough in addition.
The content of the invention
The purpose of this utility model is to be directed to the above-mentioned problems in the prior art, there is provided a kind of structural strength height, Good operating stability and the good gear of effect of vibration and noise reduction.
The purpose of this utility model can be realized by following technical proposal:A kind of gear, including gear mass and be arranged on Teeth on gear mass outer peripheral face, the middle part of described gear mass axially offer axis hole, and gear mass side is fixed with damping piece, Characterized in that, the opposite side of described gear mass has the cone tooth that a circle favours the setting of gear body axis, described gear The inwall of body has the shoulder block of a circle radially protruding, and described shoulder block is supported on the inner root portion of cone tooth, described gear mass Outer peripheral face also there is convex shoulder positioned at sidepiece of the teeth away from cone tooth and radially protruding, the outer peripheral face vulcanization of described convex shoulder is solid Rubber blanket is connected with, the outer peripheral face of described rubber blanket maintains an equal level in the tooth top setting of teeth.
In a kind of above-mentioned gear, it is recessed that inwall of the described gear mass in damping piece side end offers a ring shape Groove.Annular groove is installed for jump ring, and this gear axial float is effectively prevented after installation.
In a kind of above-mentioned gear, the inwall of described axis hole is embedded with plastic hoop, the internal diameter of described plastic hoop etc. In the aperture of axis hole.Loss of weight, absorbing noise abatement are played in the non-bulging inwall in axis hole of inwall of so plastic hoop, the setting of plastic hoop Effect, and the coefficient of friction of plastic hoop is small, and abrasion is small, service life length.
In a kind of above-mentioned gear, the end face axial of described gear mass offers several circumferential equally distributed peaces Tankage, described damping piece is cylindrical and is fixed in mounting groove.The weight of this gear is so alleviated, and is easily installed Damping piece.
As another situation, in a kind of above-mentioned gear, the end face of described gear mass offers a circle and gear The annular groove that body is coaxially disposed, described damping piece is annular in shape and is fixed in annular groove.Opening up for annular groove must meet gear The Structural strength calls of body, weight is so not only alleviated, and be easy to the placement of damping piece.
In a kind of above-mentioned gear, described damping piece is plastic parts or rubber parts.
Compared with prior art, the structural strength of this gear is high, and bearing capacity is good, and will not axial float, work is steady Qualitative good, effect of vibration and noise reduction is good in addition, and noise is small.
Brief description of the drawings
Fig. 1 is the structure sectional view of this gear.
In figure, 1, gear mass;2nd, teeth;3rd, axis hole;4th, damping piece;5th, tooth is bored;6th, shoulder block;7th, convex shoulder;8th, rubber blanket;9、 Annular groove;10th, plastic hoop.
Embodiment
It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these embodiments.
As shown in figure 1, this gear includes gear mass 1 and the teeth 2 that are arranged on the outer peripheral face of gear mass 1, in gear mass 1 Portion axially offers axis hole 3, and the side of gear mass 1 is fixed with damping piece 4, and there is the opposite side of gear mass 1 circle to favour gear The cone tooth 5 that the axis of body 1 is set, the inwall of gear mass 1 have the shoulder block 6 of a circle radially protruding, and it is inner that shoulder block 6 is supported on cone tooth 5 Root portion, the outer peripheral face of gear mass 1 also has the convex shoulder 7 positioned at sidepiece of the teeth 2 away from cone tooth 5 and radially protruding, convex shoulder 7 Outer peripheral face vulcanization be fixed with rubber blanket 8, the outer peripheral face of rubber blanket 8 maintains an equal level in the tooth top setting of teeth 2.
This gear suitable for engineering truck, automobile transmission system, this gear have integral type teeth 2 and cone tooth 5, this Spline structure intensity is high, and bearing capacity is good, and the setting of shoulder block 6 not only increases the bearing value of cone 5 inner root portion of tooth, Er Qieke The step in installation axle is matched with to prevent this gear axial float so that good operating stability, damping piece 4 play vibration and noise reducing Effect, convex shoulder 7 plays effective support to rubber blanket 8, and when this gear is under the influence of engine speed fluctuations, instantaneous line occurs Speed difference and when there is flopping phenomenon, rubber blanket 8 is used to contradict the rubber blanket 8 on the driving cog that engages with this gear, such rubber Rubber cushion 8 is inconsistent to play absorbing cushioning effect, so as to avoid this gear that slap phenomenon occurs, reduces noise, this gear vibration damping Excellent noise reduction effect.
Further describe in detail, in order to improve the anti-axial float ability of this gear, gear mass 1 is in the inwall of the side end of damping piece 4 Offer annular groove 9 of the circle for snap ring installation;For absorbing noise abatement and the abrasion of axis hole 3 is reduced, the inwall of axis hole 3 is embedding Provided with plastic hoop 10, for plastic hoop 10 between annular groove 9 and shoulder block 6, the internal diameter of plastic hoop 10 is equal to the aperture of axis hole 3.
The end face axial of the present embodiment middle gear body 1 offers four equally distributed mounting grooves of circumference, and damping piece 4 is in circle Column is simultaneously fixed in mounting groove, and to be molded the plastic parts in mounting groove, reality damps damping piece 4 when manufacturing in the present embodiment Part 4 can be rubber parts.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Claims (6)

1. a kind of gear, including gear mass(1)Be arranged on gear mass(1)Teeth on outer peripheral face(2), described gear mass (1)Middle part axially offer axis hole(3), gear mass(1)Side is fixed with damping piece(4), it is characterised in that described gear Body(1)Opposite side have one circle favour gear mass(1)The cone tooth that axis is set(5), described gear mass(1)Inwall tool There is the shoulder block of a circle radially protruding(6), described shoulder block(6)It is supported on cone tooth(5)Inner root portion, described gear mass (1)Outer peripheral face also have be located at teeth(2)Away from cone tooth(5)Sidepiece and radially protruding convex shoulder(7), described convex shoulder (7)Outer peripheral face vulcanization be fixed with rubber blanket(8), described rubber blanket(8)Outer peripheral face maintain an equal level in teeth(2)Tooth top set Put.
A kind of 2. gear according to claim 1, it is characterised in that described gear mass(1)In damping piece(4)Side end Inwall offer a ring annular groove(9).
A kind of 3. gear according to claim 2, it is characterised in that described axis hole(3)Inwall be embedded with plastic hoop (10), described plastic hoop(10)Internal diameter be equal to axis hole(3)Aperture.
A kind of 4. gear according to claim 1, it is characterised in that described gear mass(1)End face axial offer Several circumferential equally distributed mounting grooves, described damping piece(4)It is cylindrical and be fixed in mounting groove.
A kind of 5. gear according to claim 1, it is characterised in that described gear mass(1)End face offer a circle With gear mass(1)The annular groove being coaxially disposed, described damping piece(4)Annularly and it is fixed in annular groove.
A kind of 6. gear according to claim 4 or 5, it is characterised in that described damping piece(4)For plastic parts or rubber Part.
CN201721003654.5U 2017-08-11 2017-08-11 A kind of gear Expired - Fee Related CN207034131U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721003654.5U CN207034131U (en) 2017-08-11 2017-08-11 A kind of gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721003654.5U CN207034131U (en) 2017-08-11 2017-08-11 A kind of gear

Publications (1)

Publication Number Publication Date
CN207034131U true CN207034131U (en) 2018-02-23

Family

ID=61487180

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201721003654.5U Expired - Fee Related CN207034131U (en) 2017-08-11 2017-08-11 A kind of gear

Country Status (1)

Country Link
CN (1) CN207034131U (en)

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20180223

Termination date: 20190811

CF01 Termination of patent right due to non-payment of annual fee