CN103899734A - Sun gear - Google Patents
Sun gear Download PDFInfo
- Publication number
- CN103899734A CN103899734A CN201410163170.1A CN201410163170A CN103899734A CN 103899734 A CN103899734 A CN 103899734A CN 201410163170 A CN201410163170 A CN 201410163170A CN 103899734 A CN103899734 A CN 103899734A
- Authority
- CN
- China
- Prior art keywords
- gear
- eccentric mass
- wheel rim
- mounting hole
- transmission shaft
- 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.)
- Pending
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Classifications
-
- 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
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/32—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels
- F16F15/322—Correcting- or balancing-weights or equivalent means for balancing rotating bodies, e.g. vehicle wheels the rotating body being a shaft
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a sun gear which comprises a rim and gear teeth. The gear teeth are arranged on the circumferential surface of the rim in the circumferential direction, the outer side faces of the rim comprise a left side face and a right side face, a first mounting hole used for installation of a transmission shaft is formed in the center of the rim, the sun gear further comprises at least one eccentric block, a second mounting hole is formed in the upper portion of the eccentric block, the inner side face of the eccentric block is connected with the outer side faces of the rim, and the first mounting hole and the second mounting hole are concentric. The joint of the eccentric block of the sun gear and the gear is a balance point of gravity, the eccentric block is mounted on the transmission shaft so that the two ends of the transmission shaft are uniformly stressed, a quartering hammer can be prevented from horizontally deviating in one direction or multiple directions, breaking positions can be precisely located at points, a determined breaking center is repeatedly impacted on the condition that the breaking center is not changed, vibration energy in the breaking direction is also guaranteed, breaking efficiency of the quartering hammer is improved, and therefore the service life of the transmission shaft, bearings and boxes is prolonged.
Description
Technical field
The present invention relates to a kind of vibration box of high-frequency breaking hammer, relate in particular to a kind of central gear being arranged in vibration box.
Background technique
Vibration box (having another name called vibration exciter) comprises casing and is installed on two eccentric wheels in casing, two eccentric wheels synchronously rotate in the opposite direction by a pair of pitch wheel, and then the centrifugal force component on the center line connecting direction of transmission shaft producing is separately cancelled out each other, mutually superpose and form described excitation force at the component of center transmission shaft line Vertical direction.
Although the vibration exciter of this kind of structure can prevent cracking hammer head occurred level skew in one direction, it still may occurred level skew in other any direction.And being arranged on transmission shaft due to gear, eccentric mass interval, transmission shaft another end will inevitably produce the gravity that is greater than the other end, so just cause stressed irregular on transmission shaft, thereby cause the bearing, casing at two ends because of the stressed irregular damage that produces, greatly reduce the working life of transmission shaft, bearing and casing.
And this will make broken position cannot be accurate to a little, cannot be in the situation that not wishing to change broken center the fixed broken center of repeated stock, but also can cut down the vibrational energy in broken direction, reduce broken effect.
Summary of the invention
The object of the invention is to solve the problems of the prior art, a kind of central gear is provided.
Technological scheme of the present invention is: central gear, comprise wheel rim and the gear teeth, the described gear teeth are circumferentially arranged on the circumferential surface of described wheel rim, the outer side surface of this wheel rim comprises left surface and right flank, the first mounting hole that offers an installation transmission shaft in the neutral position of described wheel rim, also comprises at least one eccentric mass, is provided with the second mounting hole on the top of this eccentric mass, the inner side surface of described eccentric mass and wheel rim outer side surface join, and the first mounting hole is concentric with the second mounting hole.
Preferably, described eccentric mass is one, is arranged on left surface or the right flank of described wheel rim.
Preferably, being equal in weight of the weight of described eccentric mass and described gear.
Preferably, described eccentric mass is a pair of, is symmetricly set on respectively left surface and the right flank of described wheel rim.
Preferably, the weight sum of described two eccentric masss is more than or equal to the weight of described gear.
Preferably, the outer side surface of described eccentric mass and the described wheel rim structure that is welded as a whole.
Preferably, all offer multiple the 3rd corresponding mounting holes on described eccentric mass and gear, eccentric mass and gear pass described the 3rd mounting hole by bolt and join.
Preferably, the profile of described eccentric mass is semicircle, and this eccentric mass circumferential shapes is with identical with the semi circular surface of described wheel rim.
Preferably, described gear is spur gear or helical gear or people's generating gear.
Preferably, on the outer side surface of described wheel rim, offer multiple stress and decompose hole.
The eccentric mass of central gear of the present invention and the gear connecting part equilibrium of forces point of attaching most importance to, be arranged on transmission shaft and can make the stressed even of transmission shaft two ends, can prevent cracking hammer head occurred level skew in one or more directions, broken position is accurate to a little, the fixed broken center of repeated stock in the situation that not changing broken center, but also ensure the vibrational energy in broken direction, increase the broken effect of quartering hammer, and then extended the working life of transmission shaft, bearing and casing.
Brief description of the drawings
Fig. 1 is the stereogram of the single eccentric mass of the present invention;
Fig. 2 is the stereogram of the two eccentric masss of the present invention;
Fig. 3 is the plan view of Fig. 2;
Fig. 4 is the rear view of Fig. 2;
Fig. 5 is the side view of Fig. 2;
Fig. 6 is that the present invention installs the stereogram after transmission shaft;
Fig. 7 is the explosive view of Fig. 6;
Fig. 8 is the gear stereogram of setting-up eccentricity piece not in the present invention;
Fig. 9 is the plan view of eccentric mass in the present invention;
Figure 10 is the constitutional diagram of Fig. 8, Fig. 9;
Figure 11 is two intermeshing schematic diagram of gear in the present invention.
Embodiment
For technological means, technical characteristics, goal of the invention and technique effect that the present invention is realized are easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
Be a kind of central gear 10 of the present invention as shown in Figure 1, 2, the vibration box that is mainly high-frequency breaking hammer provides the parts of power, the present invention includes wheel rim 100 and the gear teeth 200, the circumferential arrangement of these gear teeth 100 equi-spaced apart is on the circumferential surface of wheel rim, the gear teeth 100 of the present invention can be straight-tooth, helical teeth or humanoid tooth, in the present invention, with helical teeth best results, describe as an example of helical teeth example.
Comprise left surface 101 and right flank 102 at the outer side surface of wheel rim 100, offer the first mounting hole 103 of an installation transmission shaft 300 in the neutral position of wheel rim 100, above the first mounting hole 103, offer multiple stress and decompose hole 104, for decompose the power applying in the time that two gears are intermeshing.Transmission shaft 300 is fixed connection through this first mounting hole 103.This transmission shaft 300 is for connecting fluid pressure motor or other power plant, be provided with a mount inlet 301 in one end of transmission shaft 300, for the rotating shaft of oil hydraulic motor is installed, drive the rotation of transmission shaft 300 by the rotating shaft of oil hydraulic motor, thereby drive the running of entirety of the present invention, with reference to figure 6 and Fig. 7.
The present invention also comprises at least one eccentric mass 400, be provided with the second mounting hole 401 on the top of this eccentric mass 400, this second mounting hole 401 is identical with the pore size of the first mounting hole 103, and after cooperation, the first mounting hole 103 is concentric with the second mounting hole 401, the first mounting hole 103, the second mounting hole 401 are with transmission shaft 300 after assembling, and its center is all positioned on same axis.
The profile of the eccentric mass 400 in the present invention is semicircle, and eccentric mass 400 circumferential shapes are identical with the semi circular surface of wheel rim 100, and the root circle of the periphery of eccentric mass 400 and gear 10 coincides.Certainly in the present invention, be only example taking eccentric mass 400 as semicircle, other shapes can realize the also applicable the present invention that can reach eccentric effect.
As shown in Figure 1, when eccentric mass 400 in the present invention is one, this eccentric mass 400 is arranged on the left surface 101 or right flank 102 of described wheel rim 100, and being equal in weight of the weight of this eccentric mass 400 and gear 100, be that both take connecting part as separatrix, in these marginal both sides, it is equal in weight.Like this this gear 10 is arranged on behind the neutral position of transmission shaft 300, can ensure that transmission shaft 300 both sides weight keep balance, can to being set in the bearing at transmission shaft 300 two ends, because releasing, power is irregular produce damage, thus the working life of bearing and transmission shaft extended.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, emphasis of the present invention is introduced when a pair of taking eccentric mass 400, eccentric mass 400 is symmetricly set on being respectively twice on the left surface 101 and right flank 102 of wheel rim 100, and by two the second mounting holes 401 and the concentric installation of the first mounting hole 103, eccentric mass 400 positions that ensure two ends with this always in when assembling.
The weight sum of these two eccentric masss 400 can, according to the transmission effect of oil hydraulic motor, by the weight that is more than or equal to described gear 10 of its weight setting, can play the vibrating effect of expection like this.
The left surface 101 of two eccentric masss 400 and wheel rim 100 and right flank 102 Placements have multiple, mainly comprise integrally casting, welding or are bolted.Wherein calculating after various data when integrally casting, during such as weight, then die sinking makes it one-body molded, processes processing.
As shown in Fig. 1 to 7, welding is by two eccentric masss 400, along the periphery of eccentric mass 400 by its direct spot welding on the left surface 101 and right flank 102 of wheel rim 100, to ensure both sides eccentric mass 400 position correspondences, and in the face of left surface 101 and right flank 102.
Shown in figure 8, Fig. 9 and Figure 10, for ease of gear 10 and eccentric mass 400 are dismantled and are installed, by offer multiple the 3rd mounting holes 402 for inserting bolt on eccentric mass 400, and on the wheel rim 100 of gear 10, offer multiple and the 3rd mounting hole 402 positions and corresponding the 4th mounting hole 105 of size, like this by bolt being inserted into above-mentioned the 3rd mounting hole 402, the 4th mounting hole 104 can be realized the fixing assembling with wheel rim 100 by eccentric mass 400.
Above-mentioned eccentric mass 400 is also applicable to being connected of single eccentric mass with the Placement of wheel rim 100, certain this Placement is not limited to above-mentioned three kinds, also can be by other Placements, can as long as can eccentric mass, wheel rim are fixedly installed on transmission shaft and realize synchronous rotation.
As Figure 11, be two intermeshing schematic diagram that carry out transmission of central gear 10,20 of the present invention, wherein transmission shaft 300 is as driving shaft, and gear 10 is arranged on the neutral position of this transmission shaft 300, what be meshed with gear 10 is gear 20, and gear 20 is arranged on driven shaft 500.
The present invention is in the time coordinating with high-frequency breaking hammer, by the two ends of transmission shaft 300 302,303, the two ends of driven shaft 500 are arranged in bearing, mount inlet 301 connecting fluid pressure motors on one end 302 of transmission shaft 300, bearing is arranged on the side plate of vibration box, said gear 10,20 is combined as vibrations assembly.
Central gear velocity ratio of the present invention is stable, transmission efficiency is high, and its structure is comparatively compact, and functional reliability is high, long service life.
The eccentric mass of central gear of the present invention and the gear connecting part equilibrium of forces point of attaching most importance to, be arranged on transmission shaft and can make the stressed even of transmission shaft two ends, can prevent cracking hammer head occurred level skew in one or more directions, broken position is accurate to a little, the fixed broken center of repeated stock in the situation that not changing broken center, but also ensure the vibrational energy in broken direction, increase the broken effect of quartering hammer, and then extended the working life of transmission shaft, bearing and casing.
Be only preferred embodiment of the present invention in sum, be not used for limiting practical range of the present invention.Be that all equivalences of doing according to the content of the present patent application the scope of the claims change and modify, all should belong to technology category of the present invention.
Claims (10)
1. central gear, comprise wheel rim and the gear teeth, the described gear teeth are circumferentially arranged on the circumferential surface of described wheel rim, the outer side surface of this wheel rim comprises left surface and right flank, the first mounting hole that offers an installation transmission shaft in the neutral position of described wheel rim, is characterized in that: also comprise at least one eccentric mass, be provided with the second mounting hole on the top of this eccentric mass, the inner side surface of described eccentric mass and wheel rim outer side surface join, and the first mounting hole is concentric with the second mounting hole.
2. central gear according to claim 1, is characterized in that: described eccentric mass is one, is arranged on left surface or the right flank of described wheel rim.
3. central gear according to claim 2, is characterized in that: being equal in weight of the weight of described eccentric mass and described gear.
4. central gear according to claim 1, is characterized in that: described eccentric mass is a pair of, is symmetricly set on respectively left surface and the right flank of described wheel rim.
5. central gear according to claim 4, is characterized in that: the weight sum of described two eccentric masss is more than or equal to the weight of described gear.
6. according to the central gear described in claim 2 or 4 or 5, it is characterized in that: the outer side surface of described eccentric mass and the described wheel rim structure that is welded as a whole.
7. according to the central gear described in claim 2 or 4 or 5, it is characterized in that: on described eccentric mass and gear, all offer multiple the 3rd corresponding mounting holes, eccentric mass and gear pass described the 3rd mounting hole by bolt and join.
8. according to the central gear described in claim 2 or 4 or 5, it is characterized in that: the profile of described eccentric mass is for semicircle, and this eccentric mass circumferential shapes is with identical with the semi circular surface of described wheel rim.
9. according to the central gear described in claim 2 to 5 any one, it is characterized in that: described gear is spur gear or helical gear or people's generating gear.
10. according to the central gear described in claim 2 to 5 any one, it is characterized in that: on the outer side surface of described wheel rim, offer multiple stress and decompose hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163170.1A CN103899734A (en) | 2014-04-22 | 2014-04-22 | Sun gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410163170.1A CN103899734A (en) | 2014-04-22 | 2014-04-22 | Sun gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103899734A true CN103899734A (en) | 2014-07-02 |
Family
ID=50991243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410163170.1A Pending CN103899734A (en) | 2014-04-22 | 2014-04-22 | Sun gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103899734A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372030A (en) * | 2015-09-25 | 2016-03-02 | 浙江大学 | Multi-direction cyclic loading device and method for offshore wind turbine support structure vibration tests |
| CN110428717A (en) * | 2019-08-02 | 2019-11-08 | 安徽盛鸿展览工程有限公司 | A kind of driving mechanism of suspension type machinery flying bird |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09105236A (en) * | 1995-08-04 | 1997-04-22 | Jiyakutei Eng Kk | Attachment for fitting to shovel |
| CN102182218A (en) * | 2011-04-01 | 2011-09-14 | 曹国俊 | High-frequency breaking hammer |
| CN102844500A (en) * | 2010-04-20 | 2012-12-26 | 赵在龙 | Vibration nipper for heavy machinery |
| CN103233490A (en) * | 2013-05-15 | 2013-08-07 | 上海豪宏机械制造有限公司 | High-frequency vibrating hammering stone crusher |
| CN203784229U (en) * | 2014-04-22 | 2014-08-20 | 上海上鸣机械科技有限公司 | Sungear |
-
2014
- 2014-04-22 CN CN201410163170.1A patent/CN103899734A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09105236A (en) * | 1995-08-04 | 1997-04-22 | Jiyakutei Eng Kk | Attachment for fitting to shovel |
| CN102844500A (en) * | 2010-04-20 | 2012-12-26 | 赵在龙 | Vibration nipper for heavy machinery |
| CN102182218A (en) * | 2011-04-01 | 2011-09-14 | 曹国俊 | High-frequency breaking hammer |
| CN103233490A (en) * | 2013-05-15 | 2013-08-07 | 上海豪宏机械制造有限公司 | High-frequency vibrating hammering stone crusher |
| CN203784229U (en) * | 2014-04-22 | 2014-08-20 | 上海上鸣机械科技有限公司 | Sungear |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372030A (en) * | 2015-09-25 | 2016-03-02 | 浙江大学 | Multi-direction cyclic loading device and method for offshore wind turbine support structure vibration tests |
| CN110428717A (en) * | 2019-08-02 | 2019-11-08 | 安徽盛鸿展览工程有限公司 | A kind of driving mechanism of suspension type machinery flying bird |
| CN110428717B (en) * | 2019-08-02 | 2021-05-25 | 安徽盛鸿展览工程有限公司 | Driving mechanism of suspension type mechanical flying bird |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140702 |