CN109236984A - A kind of vibration and noise reducing gear and its assembly technology - Google Patents

A kind of vibration and noise reducing gear and its assembly technology Download PDF

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Publication number
CN109236984A
CN109236984A CN201811252841.6A CN201811252841A CN109236984A CN 109236984 A CN109236984 A CN 109236984A CN 201811252841 A CN201811252841 A CN 201811252841A CN 109236984 A CN109236984 A CN 109236984A
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China
Prior art keywords
wheel body
external gear
vibration
gear
noise reduction
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CN201811252841.6A
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Chinese (zh)
Inventor
肖洋轶
邱柯朝
牛晓虎
李文虎
卢传奇
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Huazhong Agricultural University
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Huazhong Agricultural University
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Priority to CN201811252841.6A priority Critical patent/CN109236984A/en
Publication of CN109236984A publication Critical patent/CN109236984A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/17—Toothed wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
    • B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/08—Profiling
    • F16H55/0806—Involute profile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
    • F16H55/02—Toothed members; Worms
    • F16H55/14—Construction providing resilience or vibration-damping

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gears, Cams (AREA)

Abstract

本发明涉及齿轮传动领域，具体地，本发明涉及一种带气压或液压阻尼器的减振降噪齿轮。包括外齿轮、设置在外齿轮内的轮体，端盖通过紧固螺钉将轮体卡在外齿轮内，所述轮体上设有能使轮体带动外齿轮旋转的气压或液压弹簧阻尼器，所述气压或液压弹簧阻尼器至少设置有一个，一端设置在轮体内，另一端设置在外齿轮内。因此，本发明具有如下优点：(1)减轻齿轮重量，提高传动效率;（2）配件易拆卸更换，提高使用寿命；（3）减振降噪，利于连续高负荷运转，改善工况，节能降耗。

The present invention relates to the field of gear transmission, in particular, the present invention relates to a vibration and noise reduction gear with a pneumatic or hydraulic damper. It includes an external gear and a wheel body arranged in the external gear. The end cover clamps the wheel body in the external gear by tightening screws. The wheel body is provided with a pneumatic or hydraulic spring damper that enables the wheel body to drive the external gear to rotate. The pneumatic or hydraulic spring damper is provided with at least one, one end is provided in the wheel body, and the other end is provided in the external gear. Therefore, the invention has the following advantages: (1) reduce the weight of the gear and improve the transmission efficiency; (2) the accessories are easy to disassemble and replace, and the service life is improved; (3) the vibration and noise are reduced, which is conducive to continuous high-load operation, improves the working condition, and saves energy Reduce consumption.

Description

A kind of vibration and noise reducing gear and its assembly technology
Technical field
The present invention relates to gear drive fields, in particular it relates to a kind of vibration damping with air pressure or hydraulic damper Noise-reducing gear.
Background technique
Modern industry just develops towards efficient, high speed, powerful direction, and mechanical noise has become the master of environmental pollution Want one of factor.As transmission device most commonly seen in mechanized equipment, gear drive has become the main source of vibration noise. Vibration noise can not only make one fatigue, harmful to health, but also can reduce the service life and transmission efficiency of gear, improve vibration damping Noise reduction technique can realize continuous heavy-duty service for mechanized equipment and energy-saving provide a strong guarantee.Therefore subtracting for gear is studied The noise reduction technology that shakes has great society and economic value.
Currently, reducing gear vibration noise mainly passes through two methods of active designs and passive design.Wherein active designs It mainly is improved the methods of the accuracy of manufacture and axial modification, although in active designs it is contemplated that it is preferred that the structural parameters of gear Such as tooth form, pressure angle improve the engagement situation of gear, but the mesh impact, time-varying in the engagement design of gear such as have just measured at the nothings Method avoids, and is influenced by processing technology, and the effect of vibration and noise reducing is unobvious；For passive vibration damping, mainly designed in gear parameter After, using a kind of oscillation damping method of other methods, such as the vibration of internal packing material, wheel body additional damping ring control gear It is dynamic, to reach the requirement for reducing vibration, reducing noise.It is gear respectively with rubbing at present there are two types of the passive damping modes of mainstream Wipe energy consumer, gear viscoelastic damper.
It is found by comparative analysis, active designs cannot significantly achieve the effect that vibration and noise reducing, so using passively setting The oscillation damping method of additional damping material in meter.
Summary of the invention
The present invention mainly solves technical problem present in the prior art；It provides a kind of with air pressure or hydraulic damper Vibration and noise reducing gear can effectively reduce grating of gears and vibration, improve service life and transmission efficiency, to realize continuous high load capacity It operating and energy-saving provides a strong guarantee.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals:
A kind of vibration and noise reducing gear, which is characterized in that including external gear, the wheel body being arranged in external gear, end cap passes through fastening Wheel body is stuck in external gear by screw, and the wheel body is equipped with the air pressure that wheel body can be made to drive external gear rotation or hydraulic spring grease cup resistance Buddhist nun's device, the air pressure or hydraulic spring grease cup damper are at least provided with one, and one end setting is internal in wheel, and the other end is arranged in external tooth In wheel.
In a kind of above-mentioned vibration and noise reducing gear, the wheel body thickness is less than external gear thickness, air pressure or hydraulic spring grease cup resistance Buddhist nun's device is three, and wheel body periphery is equidistantly provided with three protrusions；In each protrusion along two sides in wheel body tangent to periphery direction Face is respectively arranged with the threaded hole with air pressure or hydraulic spring grease cup damper one end fits；Protrusion side is along two faces of wheel body circumferential direction It is provided with and is connected to threaded hole for filling buffer gas to gas spring or to the aperture of hydraulic spring grease cup supplement buffer.
In a kind of above-mentioned vibration and noise reducing gear, for placing wheel body, external gear inner wall is circumferentially set external gear center opening There are three fan-shaped protrusion, three grooves are formed between three fan-shaped protrusions, three protrusions can be respectively clamped into external gear on wheel body Three grooves in；Three grooves are similarly formed on wheel body between three protrusions, three fan-shaped protrusions can be respectively clamped into wheel body Three grooves in, three fan-shaped protrusion thickness are equal to the thickness of wheel body；On the fan-shaped protrusion side opposite with the protrusion of wheel body It is provided with the aperture for being inserted into air pressure or the hydraulic spring grease cup damper other end.
In a kind of above-mentioned vibration and noise reducing gear, the sum of wheel body upper screwed hole and the length of aperture of fan-shaped protrusion are air pressure Or the length of hydraulic spring grease cup damper, a threaded hole is each provided on two sides of fan-shaped protrusion axial direction side, is used for Fixed end cap；The shape of the end cap is circular ring shape, and the thickness of two end caps is equal to the thickness of external gear plus the thickness of wheel body, The end cap is used to for wheel body being fixed on the tapping at external gear center.
In a kind of above-mentioned vibration and noise reducing gear, described three fan-shaped protrusions are along center line in 120 degree of distributions.
In a kind of above-mentioned vibration and noise reducing gear, the air pressure or hydraulic spring grease cup damper are nitrogen gas spring damper.
In a kind of above-mentioned vibration and noise reducing gear, the tailpiece of the piston rod of the air pressure or hydraulic spring grease cup damper adds spherical shape Ball.
In a kind of above-mentioned vibration and noise reducing gear, the sharp place that the cutting notch of external gear wheel leaves carries out chamfering.
In a kind of above-mentioned vibration and noise reducing gear, wheel body install at gas or liquid spring damper and external gear there are Gap, other positions of wheel body periphery and external gear carry out transition fit, and wheel body is fixed at external gear center.
A kind of assembly technology of vibration and noise reducing gear characterized by comprising
Step 1 screws in the nitrogen gas spring of unaerated in the threaded hole of wheel body；
Step 2, the piston rod for depressing nitrogen gas spring, wheel body is packed into external gear；
Step 3 inflates nitrogen gas spring, and the piston rod of nitrogen gas spring supports in the notch of external gear；
Two end caps are fixed on external gear both ends with fastening screw by step 4；
Step 5 uses after being keyed on gear and axis.
Therefore, the present invention has the advantage that
1. mitigating gear weight, transmission efficiency is improved.
2. the quick detachable replacement of accessory, improves service life.
3. vibration and noise reducing is conducive to continuous high loaded process, improve operating condition, it is energy-saving.
Detailed description of the invention
Fig. 1 is New Damping vibration and noise reducing gear assembly three-dimensional explosive view of the present invention.
Fig. 2 is the assembly main view of New Damping vibration and noise reducing gear end-cover-free of the present invention.
Fig. 3 is New Damping vibration and noise reducing gear external gear main view of the present invention.
Fig. 4 is New Damping vibration and noise reducing gear wheel body main view of the present invention.
Fig. 5 is New Damping vibration and noise reducing gear nitrogen gas spring main view of the present invention.
In figure, 1- external gear；2- wheel body；3- nitrogen gas spring；4- end cap；5- threaded hole；6- notch；7a, 7b- screw hole, 8- aeration aperture, 9- piston rod, 10- spherical ball, 11- cut notch.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment
As shown in Figure 1, the present invention includes external gear 1, wheel body 2, end cap 4, fastening screw and gas spring damper. It is worth noting that, herein only by taking nitrogen gas spring 3 as an example, but it is not limited to nitrogen gas spring 3, it can be damped by air pressure or hydraulic spring grease cup Device substitution,
The present invention is only illustrated with nitrogen gas spring.As shown in Figs. 1-5, each part has following feature, should compared with ordinary gear New gear is divided into external gear 1 and wheel body 2, and to three protrusions of wheel body 2, a threaded hole 5 is respectively cut in the two sides of each protrusion, The specific cutting profile of notch 6(is also respectively cut out on the corresponding position of external gear 1 and sees attached drawing 1).The axial left and right sides simultaneously End cap 4 is reserved, end cap 4 pushes down wheel body 2, and end cap 4 is fixed on external gear 1 using fastening screw, realizes that the axial direction of wheel body 2 is solid It is fixed.End cap 4 is equipped with several screw hole 7a, and corresponding position is again provided with corresponding several screw hole 7b, fastening screw on external gear 1 End cap 4 is fixed across screw hole 7a, 7b.
It is bored on the axial direction of wheel body 2 there are six aperture corresponding with nitrogen gas spring 3, i.e. aeration aperture 8, for giving nitrogen bullet Spring 3 is inflated.The sum of length of notch 6 is the length after the elongation completely of nitrogen gas spring 3 on 2 upper screwed hole 5 of wheel body and external gear 1 (i.e. the natural length of nitrogen gas spring 3) is wherein equipped with screw thread, can will be threaded the nitrogen of cylinder in the threaded hole 5 of wheel body 2 Spring 3 screws in, by the setting of threaded line just by the aeration aperture of nitrogen gas spring 3 against the aeration aperture 8 on wheel body 2.Wheel body 2 is logical It crosses nitrogen gas spring 3 to transmit power, external gear 1 is driven to rotate, entire gear mainly passes through the rigidity of nitrogen gas spring 3 and damps real Existing vibration and noise reducing effect.
In terms of details, the setting of six nitrogen gas springs 3 is so that bilateral symmetry, Direct/Reverse rotation can all realize effect.Such as Shown in Fig. 5 additional, spherical ball 10 is installed to the end of the piston rod 9 of nitrogen gas spring 3 in the market, solved each in gear rotation process To the problem of loaded unevenness, cuts the sharp place that notch 11 leaves and all carry out chamfering, eliminate the stress at this and concentrate.
As shown in Figure 2,3, wheel body 2 is installed at nitrogen gas spring 3 with external gear 1 there are gap, other positions of 2 periphery of wheel body with External gear 1 carries out clearance fit, and when generating vibration, wheel body 2 and external gear 1 can produce small relative rotation, then pass through nitrogen The deformation of gas spring 3 is to reach effectiveness in vibration suppression.
Vibration and noise reducing function of the present invention is to bear radial vibration by external gear 1 shown in Fig. 2, is passed by external gear 1 Vibration is passed to nitrogen gas spring 3 shown in Fig. 5, then vibration damping is realized by the deformation of nitrogen gas spring 3, to achieve the goal.For axial direction by The non-uniform problem of load, being eliminated in such a way that 3 piston rod of nitrogen gas spring, 9 end adds spherical ball 10 as shown in Figure 5 Load.Vibration surplus is reserved between wheel body 2 and external gear 1, thus preferably realize effectiveness in vibration suppression, the realization vibration and noise reducing Nitrogen gas spring 3 can be substituted by air-pressure damping device or hydraulic damper, be not limited to nitrogen gas spring.
The assembling process of entire gear:
1, the nitrogen gas spring of unaerated 3 is screwed in the threaded hole 5 of wheel body 2；
2, wheel body 2 is packed into external gear 1 by the piston rod 9 for depressing nitrogen gas spring 3；
3,6 nitrogen gas springs 3 are inflated, the piston rod 9 of nitrogen gas spring 3 supports in the notch 6 of external gear 1；
4, two end caps 4 are fixed on 1 both ends of external gear with fastening screw；
5, it is used after being keyed on gear and axis.
The course of work are as follows:
Wheel body 2 is connected by nitrogen gas spring 3 with external gear 1, and axis drives wheel body 2, and wheel body 2 is transmitted power by nitrogen gas spring 3, from And external gear 1 is driven to rotate.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.

Claims (10)

1.一种减振降噪齿轮，其特征在于，包括外齿轮、设置在外齿轮内的轮体，端盖通过紧固螺钉将轮体卡在外齿轮内，所述轮体上设有能使轮体带动外齿轮旋转的气压或液压弹簧阻尼器，所述气压或液压弹簧阻尼器至少设置有一个，一端设置在轮体内，另一端设置在外齿轮内。1. A vibration and noise reduction gear, characterized in that it comprises an external gear, a wheel body arranged in the external gear, and the end cover clamps the wheel body in the external gear by tightening screws, and the wheel body is provided with an enabling wheel. The body drives the external gear to rotate, and the pneumatic or hydraulic spring damper is provided with at least one, one end is set in the wheel body, and the other end is set in the external gear. 2.根据权利要求1所述的一种减振降噪齿轮，其特征在于，所述轮体厚度小于外齿轮厚度，气压或液压弹簧阻尼器为三个，轮体外周等间隔设置有三个突起；在每个突起沿轮体圆周切线方向的两个侧面分别设置有与气压或液压弹簧阻尼器一端配合的螺纹孔；突起侧面沿轮体周向的两个面设置有与螺纹孔连通用于给气压弹簧充缓冲气体或给液压弹簧补充缓冲液的小孔。2. A vibration and noise reduction gear according to claim 1, characterized in that, the thickness of the wheel body is smaller than the thickness of the outer gear, the number of air pressure or hydraulic spring dampers is three, and the outer circumference of the wheel body is provided with three protrusions at equal intervals ; Two sides of each protrusion along the tangential direction of the circumference of the wheel body are respectively provided with threaded holes which are matched with one end of the pneumatic or hydraulic spring damper; A small hole for filling the gas spring with buffer gas or supplementing the buffer liquid for the hydraulic spring. 3.根据权利要求2所述的一种减振降噪齿轮，其特征在于，外齿轮中心开孔用于放置轮体，外齿轮内壁周向设有三个扇形突起，三个扇形突起之间形成三个凹槽，轮体上三个突起能够分别卡入外齿轮的三个凹槽中；轮体上三个突起之间同样形成三个凹槽，三个扇形突起能够分别卡入轮体的三个凹槽中，三个扇形突起厚度等于轮体的厚度；扇形突起与轮体的突起相对的侧面上设置有用于插入气压或液压弹簧阻尼器另一端的小孔。3. A vibration and noise reduction gear according to claim 2, characterized in that the central opening of the external gear is used to place the wheel body, the inner wall of the external gear is provided with three sector-shaped protrusions in the circumferential direction, and three sector-shaped protrusions are formed between the three sector-shaped protrusions. The three protrusions on the wheel body can be respectively inserted into the three grooves of the external gear; three grooves are also formed between the three protrusions on the wheel body, and the three fan-shaped protrusions can be respectively clamped into the three grooves of the wheel body. In the groove, the thickness of the three fan-shaped protrusions is equal to the thickness of the wheel body; a small hole for inserting the other end of the pneumatic or hydraulic spring damper is provided on the side of the fan-shaped protrusion and the protrusion of the wheel body. 4.根据权利要求3所述的一种减振降噪齿轮，其特征在于，轮体上螺纹孔和扇形突起的小孔的长度之和为气压或液压弹簧阻尼器的长度，扇形突起轴向一侧的两个侧面上均各设置有一个螺纹孔，用于固定端盖；所述端盖的形状为圆环形，两个端盖的厚度加上轮体的厚度等于外齿轮的厚度，所述端盖用于将轮体固定在外齿轮中心的开孔处。4. A kind of vibration damping and noise reduction gear according to claim 3, characterized in that, the sum of the lengths of the threaded holes on the wheel body and the small holes of the fan-shaped protrusions is the length of a pneumatic or hydraulic spring damper, and the fan-shaped protrusions are axially Two side surfaces of one side are respectively provided with a threaded hole for fixing the end cover; the shape of the end cover is a circular ring, and the thickness of the two end covers plus the thickness of the wheel body is equal to the thickness of the external gear, The end cover is used to fix the wheel body at the opening in the center of the external gear. 5.根据权利要求3所述的一种减振降噪齿轮，其特征在于，所述三个扇形凸起沿中心线呈120度分布。5 . The vibration and noise reduction gear according to claim 3 , wherein the three sector-shaped protrusions are distributed at 120 degrees along the center line. 6 . 6.根据权利要求1所述的一种减振降噪齿轮，其特征在于，所述气压或液压弹簧阻尼器为氮气弹簧阻尼器。6 . The vibration and noise reduction gear according to claim 1 , wherein the pneumatic or hydraulic spring damper is a nitrogen gas spring damper. 7 . 7.根据权利要求1所述的一种减振降噪齿轮，其特征在于，所述气压或液压弹簧阻尼器的活塞杆端加装有球形滚珠。7 . The vibration and noise reduction gear according to claim 1 , wherein a spherical ball is added to the piston rod end of the pneumatic or hydraulic spring damper. 8 . 8.根据权利要求1所述的一种减振降噪齿轮，其特征在于，对外齿轮的切割槽口留下的尖锐处均进行倒角。8 . The vibration and noise reduction gear according to claim 1 , wherein the sharp parts left by the cutting notch of the external gear are all chamfered. 9 . 9.根据权利要求1所述的一种减振降噪齿轮，其特征在于，轮体安装气体或液体弹簧阻尼器处与外齿轮留有间隙，轮体外周其他部位与外齿轮进行过渡配合，以将轮体固定在外齿轮中心处。9. A kind of vibration and noise reduction gear according to claim 1, characterized in that, there is a gap between the wheel body and the external gear where the gas or liquid spring damper is installed, and other parts on the outer periphery of the wheel body are transitionally matched with the external gear, to fix the wheel body at the center of the external gear. 10.一种减振降噪齿轮的装配工艺，其特征在于，包括：10. An assembly process for a vibration-damping and noise-reducing gear, comprising: 步骤1、将未充气的氮气弹簧旋入外齿轮内；Step 1. Screw the uninflated nitrogen gas spring into the outer gear; 步骤2、将氮气弹簧活塞杆压下，装入轮体；Step 2. Press down the piston rod of the nitrogen gas spring and install it into the wheel body; 步骤3、将氮气弹簧充气，活塞杆撑入轮体孔径内；Step 3. Inflate the nitrogen gas spring, and support the piston rod into the hole of the wheel body; 步骤4、用紧固螺钉将两个端盖固定在外齿轮上；Step 4. Fix the two end caps on the external gear with fastening screws; 步骤5、将齿轮与轴上键连接后使用。Step 5. Use after connecting the gear with the key on the shaft.
CN201811252841.6A 2018-10-25 2018-10-25 A kind of vibration and noise reducing gear and its assembly technology Pending CN109236984A (en)

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CN110319174A (en) * 2019-07-06 2019-10-11 倪俊极 A kind of modified gear
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Cited By (3)

* Cited by examiner, † Cited by third party
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CN110319174A (en) * 2019-07-06 2019-10-11 倪俊极 A kind of modified gear
CN111173914A (en) * 2020-02-12 2020-05-19 常州工学院 A kind of high damping dynamic vibration damping gear
CN111173914B (en) * 2020-02-12 2021-03-12 常州工学院 High-damping dynamic vibration reduction gear

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Application publication date: 20190118