CN102671853A - Gear engagement type pneumatic vibrator - Google Patents
Gear engagement type pneumatic vibrator Download PDFInfo
- Publication number
- CN102671853A CN102671853A CN2012101071024A CN201210107102A CN102671853A CN 102671853 A CN102671853 A CN 102671853A CN 2012101071024 A CN2012101071024 A CN 2012101071024A CN 201210107102 A CN201210107102 A CN 201210107102A CN 102671853 A CN102671853 A CN 102671853A
- Authority
- CN
- China
- Prior art keywords
- gear
- center
- gravity
- type gas
- vibrator
- 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
Links
Images
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The invention relates to a gear engagement type pneumatic vibrator. The gear engagement type pneumatic vibrator comprises a vibrator shell (1) provided with an air inlet (11) and an air outlet (12); the air inlet (11) and the air outlet (12) are communicated with a hollow cavity (13), at least one pair of mutually engaged gears, namely a left gear (21) and a right gear (22), are installed in the hollow cavity (13); the left gear (21) and the right gear (22) are installed on a left revolving shaft (31) and a right revolving shaft (32) respectively; a center of gravity (A) of the left gear (21) is deviated from an axis (01) of the left revolving shaft (31) to form an eccentric distance L1, and a center of gravity (B) of the right gear (22) is deviated from an axis (02) of the right revolving shaft (32) to form an eccentric distance L2; the left gear (21) and the right gear (22) are rolled driven by the compressed air, and the rotation directions are opposite, so thatthe eccentric forces of the left gear (21) and the right gear (22) can be partially or completely counteracted to each other on the X-axis direction, and overlapped on the Y-axis direction of the vibration output direction in order to obtain relatively big directed vibratory force, and thus the amplitude of vibration of Y-axis is improved. The gear engagement type pneumatic vibrator has the advantages of simple structure, low cost, large amplitude, good vibration effect and high efficiency.
Description
1, technical field
The present invention relates to pneumatic element, refer to a kind of gear-engaged type gas vibrator that is used for vibratory sieve equipment especially.
2, background technology
The structure of traditional vibratory sieve is as shown in Figure 1, comprises screen frame 01, is located at the screen cloth that has mesh 02 on the screen frame 01, and is fixed on the vibration source 03 on the screen frame 01.Vibration source 03 has the employing ultrasonic vibration source, also adopts the gas vibrator, and at present, the ultrasonic vibration source price is higher, and vibration frequency is high, and vibrating effect is good, and the gas vibrator is because vibration frequency and amplitude are all less, and vibrating effect is not good, and price is lower.
When existing gas vibrator drive load was moved, mostly the load movement track was irregular curve, can't realize the motion of the directed straight line of load, and the idle work of consumption is more, and efficient is lower.
3, summary of the invention
The object of the present invention is to provide a kind of gear-engaged type gas vibrator, it is simple in structure, and cost is low, and amplitude is big, and vibrating effect is good, and efficient is higher.
The present invention is through realize in technical scheme as follows:
A kind of gear-engaged type gas vibrator comprises the vibrator housing that has air inlet and exhaust outlet, is provided with cavity in the inside of vibrator housing; Air inlet and exhaust outlet are communicated with cavity, minimum a pair of pitch wheel, i.e. left gear and the right gear of being equipped with in the cavity the inside; Left gear and right gear are installed in respectively on left rotary shaft and the right spindle; The axle center of the deviation of gravity center left rotary shaft of left gear forms eccentric throw L1, and the axle center of the deviation of gravity center right spindle of right gear forms eccentric throw L2, and left gear and right gear are compressed that air driven is done rolling and direction of rotation is opposite; Eccentric force on left gear and the right gear can some or all ofly be cancelled out each other in X-direction; Y direction at the vibration outbound course stacks up, and obtains bigger directional vibration power, improves the Y axis vibration amplitude.
Above-mentioned said a plurality of independently cavitys at vibrator housing are provided with many to separate left gear and right gear respectively.
Above-mentioned said 2 of vibrator housing independently cavity 2 pairs of separate left gears and right gear are set respectively.
Through the rolling bearing supporting, rolling bearing is installed in the bearing saddle bore of vibrator housing the inside respectively for above-mentioned said left rotary shaft and right spindle two ends.
The center of gravity of above-mentioned said left gear and the center of gravity of right gear are about the Y axial symmetry, and eccentric throw L1 equals eccentric throw L2.
The center of gravity of above-mentioned said left gear and the center of gravity of right gear are asymmetric about the Y axle, the unequal eccentric throw L2 of eccentric throw L1, and the ratio of two eccentric throws is in 0.8～1 scope.
The synchro angle θ 1 of the center of gravity of above-mentioned said left gear and the scope of the absolute value of the difference of the center of gravity synchro angle θ 2 of right gear at 0～60 degree.
Above-mentioned said vibrator housing is divided into upper shell and lower house, is respectively equipped with the bearing saddle bore that is used to install rolling bearing on upper shell and the lower house, and bearing saddle bore all is circular ladder blind hole, and the centre-to-centre spacing of diaxon bearing hole is meshing gear centre-to-centre spacing.
Above-mentioned said left gear is provided with lightening core and eccentric block, and right gear is provided with lightening core and eccentric block.
Above-mentioned said air admission hole and steam vent are separately positioned on vibrator housing top and bottom and between left gear and right gear.
The profile of tooth of above-mentioned said left gear and right gear is straight-tooth, helical teeth or herringbone tooth, and the number of teeth, the modulus of two meshing gears are identical; The number of teeth of gear >=8.
The beneficial effect that the present invention has:
(1) utilize compressed air to enter in the gas vibrator housing sealing upper impression from air inlet, the thrust left gear of gas and right gear rotation, left gear and right gear realize that synchronous pure rolling and direction of rotation are opposite; Eccentric force on left gear and the right gear can some or all ofly be cancelled out each other in X-direction, stack up, obtain bigger directional vibration power in Y direction; Improve the Y axis vibration amplitude, simple in structure, cost is low; Amplitude is big, and vibrating effect is good, and efficient is higher; Price is equivalent to 1/20 of ultrasonic vibrator, but Oscillation Amplitude is big, and the vibrating effect and the ultrasonic vibrator of generation are suitable.
(2) center of gravity of the center of gravity of left gear and right gear is about the Y axial symmetry, and eccentric throw L1 equals eccentric throw L2, and the eccentric force on left gear and the right gear is all cancelled out each other in X-direction, and Y direction obtains maximum amplitude effect.
(3) center of gravity of the center of gravity of left gear and right gear is asymmetric about the Y axle; The unequal eccentric throw L2 of eccentric throw L1, the ratio of two eccentric throws be in 0.8～1 scope, and perhaps the absolute value of the synchro angle θ 1 of the center of gravity of left gear and the difference of the center of gravity synchro angle θ 2 of right gear is in the scope of 0～60 degree; Eccentric force on left gear and the right gear can partly be cancelled out each other in X-direction; Stack up in Y direction, obtain bigger directional vibration power, improve the Y axis vibration amplitude.
(4) vibrator housing is divided into upper shell and lower house; Be respectively equipped with the bearing saddle bore that is used to install rolling bearing on upper shell and the lower house; Bearing saddle bore all is circular ladder blind hole, and the centre-to-centre spacing of diaxon bearing hole is meshing gear centre-to-centre spacing, and is simple in structure; The gear installation accuracy guarantees that easily cost is low.Vibrator housing adopts upper and lower minute body structure, in processing, install all easily, practices thrift processing cost greatly, after arbitrary wearing and tearing, can change easily, thereby reduce the maintenance cost of gas vibrator, increases the service life.
(5) left gear is provided with lightening core and eccentric block, and right gear is provided with lightening core and eccentric block, implements comparatively simple possible of structure.
(6) air admission hole and steam vent are separately positioned on vibrator housing top and bottom and between left gear and right gear, topology layout is reasonable, can make full use of compressed air with transmission of power on left gear and right gear, promote efficient.
4, description of drawings:
Fig. 1 is the structural representation of traditional vibratory sieve;
Fig. 2 a kind of cutaway view of implementing structure of the present invention.
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the cutaway view that the another kind of invention is implemented structure.
Fig. 5 is a principle schematic of the present invention;
Fig. 6 is the force analysis figure of Fig. 5.
5, the specific embodiment:
Below in conjunction with accompanying drawing embodiment of the present invention is described further:
Like Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, a kind of gear-engaged type gas vibrator of the present invention comprises the vibrator housing 1 that has air inlet 11 and exhaust outlet 12; Be provided with cavity 13 in the inside of vibrator housing 1; Air inlet 11 is communicated with cavity 13 with exhaust outlet 12, minimum a pair of pitch wheel, the i.e. left gear 21 and right gear 22 of being equipped with in cavity 13 the insides; Left gear 21 is installed in respectively on left rotary shaft 31 and the right spindle 32 with right gear 22; The axle center O1 that the center of gravity A of left gear 21 departs from left rotary shaft 31 forms eccentric throw L1, and the axle center O2 that the center of gravity B of right gear 22 departs from right spindle 32 forms eccentric throw L2, and left gear 21 is compressed with right gear 22 that air driven is done to roll and direction of rotation is opposite; Left gear 21 and the eccentric force on the right gear 22 can some or all ofly be cancelled out each other in X-direction; Y direction at the vibration outbound course stacks up, and obtains bigger directional vibration power, improves the Y axis vibration amplitude.
Above-mentioned described a plurality of independently cavitys 13 at vibrator housing 1 are provided with many to separate left gear 21 and right gear 22 respectively, promote the Y axis vibration amplitude, thereby obtain good vibrating effect.
Above-mentioned said 2 of vibrator housing 1 independently cavity 13 2 pairs of separate left gears 21 and right gear 22 are set respectively.
Above-mentioned described left rotary shaft 31 supports through rolling bearing 5 respectively with right spindle 32 two ends, and rolling bearing 5 is installed in the bearing saddle bore 14 of vibrator housing 1 the inside.
The center of gravity B of the center of gravity A of above-mentioned described left gear 21 and right gear 22 is about the Y axial symmetry; Eccentric throw L1 equals eccentric throw L2, and the eccentric force on left gear and the right gear is all cancelled out each other in X-direction, and Y direction obtains maximum amplitude effect; Loss is minimum, and is most effective.
The center of gravity B of the center of gravity A of above-mentioned described left gear 21 and right gear 22 is asymmetric about the Y axle, the unequal eccentric throw L2 of eccentric throw L1, and the ratio of two eccentric throws is in 0.8～1 scope.Eccentric force on left gear and the right gear can partly be cancelled out each other in X-direction, stack up, obtain bigger directional vibration power, improve the Y axis vibration amplitude, but be not preferred plan in Y direction.
The synchro angle θ 1 of the center of gravity A of above-mentioned described left gear 21 and the scope of the absolute value of the difference of the center of gravity B synchro angle θ 2 of right gear 22 at 0～60 degree.Eccentric force on left gear and the right gear can partly be cancelled out each other in X-direction, stack up, obtain bigger directional vibration power, improve the Y axis vibration amplitude, but be not preferred plan in Y direction.
Above-mentioned described vibrator housing 1 is divided into upper shell 100 and lower house 101; Be respectively equipped with the bearing saddle bore 14 that is used to install rolling bearing 5 on upper shell 100 and the lower house 101; Bearing saddle bore 14 all is circular ladder blind hole, and the centre-to-centre spacing of diaxon bearing hole 14 is meshing gear centre-to-centre spacing.
Above-mentioned described left gear 21 is provided with lightening core 211 and eccentric block 212, and right gear 22 is provided with lightening core 221 and eccentric block 222.Lightening core number on each gear is more than or equal to 1, and the eccentric block number is more than or equal to 1, and this instance gear lightening core number is 3, and the eccentric block number is 1,
Above-mentioned described air admission hole 11 and steam vent 12 are separately positioned on vibrator housing 1 top and bottom and between left gear 21 and right gear 22; The profile of tooth of said left gear 21 and right gear 22 is straight-tooth, helical teeth or herringbone tooth, and the number of teeth, the modulus of two meshing gears are identical; The number of teeth of gear >=8.
Principle of the present invention is: like Fig. 5 and shown in Figure 6; The axle center O1 that the center of gravity A of left gear 21 departs from left rotary shaft 31 forms eccentric throw L1; The axle center O2 that the center of gravity B of right gear 22 departs from right spindle 32 forms eccentric throw L2; Left gear 21 is opposite with right gear 22 engagement synchronous pure rolling of realization and direction of rotation; The line of AO1 turns clockwise around axle center O1, and the line of BO2 is rotated counterclockwise around axle center O2, in the absolute value of the synchro angle θ 1 of the center of gravity A of left gear 21 and the difference of the center of gravity B synchro angle θ 2 of right gear 22 scope at 0～60 degree; When eccentric throw L1 equaled eccentric throw L2, synchro angle θ 1 was 0 o'clock with the differential seat angle of synchro angle θ 2, just in time symmetry; Eccentric force on left gear and the right gear can all be cancelled out each other in X-direction; Stack up in Y direction, obtain maximum directional vibration power, improve the Y axis vibration amplitude; Be preferred plan, obtain directed rectilinear motion effect.
When eccentric throw L1 was not equal to eccentric throw L2, both had a little gap, and perhaps to equal the differential seat angle of eccentric throw L2 and synchro angle θ 1 and synchro angle θ 2 be not 0 o'clock to eccentric throw L1; Eccentric force can partly be cancelled out each other in X-direction; Direction Y direction in vibration output stacks up, and obtains bigger directional vibration power, improves the Y axis vibration amplitude; But, form the curvilinear motion track in the also residual certain function power of X-direction.
Among Fig. 6, O1 turns clockwise around the axle center with the center of gravity A of left gear 21, produces directed force F 1 in tangential direction, and the active force that directed force F 1 is decomposed at X axle and Y axle is F3 and F5; O2 is rotated counterclockwise the center of gravity B of right gear 22 around the axle center, produces directed force F 2 in tangential direction, and the active force that directed force F 2 is decomposed at X axle and Y axle is F4 and F6, and directed force F 3 is approaching with directed force F 4 sizes; In the opposite direction, therefore all perhaps most of active force of offsetting X-direction, directed force F 5 is approaching with directed force F 6 sizes; Direction is consistent, in the Y axle acquisition stack of vibration outbound course, thereby obtains bigger amplitude; Though under the situation that does not have to promote in vibration frequency, Oscillation Amplitude significantly promotes, vibrating effect is good; Efficient is higher, and price is equivalent to 1/20 of ultrasonic vibrator, and the vibrating effect and the ultrasonic vibrator of generation are suitable.
Claims (11)
1. gear-engaged type gas vibrator; Comprise the vibrator housing (1) that has air inlet (11) and exhaust outlet (12), be provided with cavity (13) in the inside of vibrator housing (1), air inlet (11) and exhaust outlet (12) are communicated with cavity (13); It is characterized in that: minimum in cavity (13) the inside a pair of pitch wheel is installed; Be left gear (21) and right gear (22), left gear (21) and right gear (22) are installed in respectively on left rotary shaft (31) and the right spindle (32), and the axle center (O1) that the center of gravity (A) of left gear (21) departs from left rotary shaft (31) forms eccentric throw L1; The axle center (O2) that the center of gravity (B) of right gear (22) departs from right spindle (32) forms eccentric throw L2; Left gear (21) and right gear (22) are compressed that air driven do to be rolled and direction of rotation is opposite, and the eccentric force on left gear (21) and the right gear (22) can some or all ofly be cancelled out each other in X-direction, stack up in the Y direction of vibrating outbound course; Obtain bigger directional vibration power, improve the Y axis vibration amplitude.
2. a kind of gear-engaged type gas vibrator according to claim 1 is characterized in that: a plurality of independently cavitys (13) at vibrator housing (1) are provided with many to separate left gear (21) and right gear (22) respectively.
3. a kind of gear-engaged type gas vibrator according to claim 2 is characterized in that: 2 of vibrator housing (1) independently cavity (13) 2 pairs of separate left gears (21) and right gear (22) are set respectively.
4. according to claim 1,2 or 3 described a kind of gear-engaged type gas vibrators; It is characterized in that: through rolling bearing (5) supporting, rolling bearing (5) is installed in the bearing saddle bore (14) of vibrator housing (1) the inside respectively for left rotary shaft (31) and right spindle (32) two ends.
5. a kind of gear-engaged type gas vibrator according to claim 1 is characterized in that: the center of gravity (A) of left gear (21) and the center of gravity (B) of right gear (22) are about the Y axial symmetry, and eccentric throw L1 equals eccentric throw L2.
6. a kind of gear-engaged type gas vibrator according to claim 1; It is characterized in that: the center of gravity (A) of left gear (21) and the center of gravity (B) of right gear (22) are asymmetric about the Y axle; The unequal eccentric throw L2 of eccentric throw L1, the ratio of two eccentric throws is in 0.8～1 scope.
7. a kind of gear-engaged type gas vibrator according to claim 1 is characterized in that: the synchro angle θ 1 of the center of gravity (A) of left gear (21) and the scope of the absolute value of the difference of center of gravity (B) the synchro angle θ 2 of right gear (22) at 0～60 degree.
8. a kind of gear-engaged type gas vibrator according to claim 1; It is characterized in that: vibrator housing (1) is divided into upper shell (100) and lower house (101); Be respectively equipped with the bearing saddle bore (14) that is used to install rolling bearing (5) on upper shell (100) and the lower house (101); Bearing saddle bore (14) all is circular ladder blind hole, and the centre-to-centre spacing of diaxon bearing hole (14) is meshing gear centre-to-centre spacing.
9. a kind of gear-engaged type gas vibrator according to claim 1 is characterized in that: left gear (21) is provided with lightening core (211) and eccentric block (212), and right gear (22) is provided with lightening core (221) and eccentric block (222).
10. a kind of gear-engaged type gas vibrator according to claim 1 is characterized in that: air admission hole (11) and steam vent (12) be separately positioned on vibrator housing (1) top and bottom and be positioned at left gear (21) and right gear (22) between.
11. a kind of gear-engaged type gas vibrator according to claim 1 is characterized in that: the profile of tooth of said left gear (21) and right gear (22) is straight-tooth, helical teeth or herringbone tooth, and the number of teeth, the modulus of two meshing gears are identical; The number of teeth of gear >=8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101071024A CN102671853A (en) | 2012-04-12 | 2012-04-12 | Gear engagement type pneumatic vibrator |
| PCT/CN2013/071107 WO2013152636A1 (en) | 2012-04-11 | 2013-01-30 | Pneumatic vibrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101071024A CN102671853A (en) | 2012-04-12 | 2012-04-12 | Gear engagement type pneumatic vibrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102671853A true CN102671853A (en) | 2012-09-19 |
Family
ID=46804785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101071024A Pending CN102671853A (en) | 2012-04-11 | 2012-04-12 | Gear engagement type pneumatic vibrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102671853A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013152636A1 (en) * | 2012-04-11 | 2013-10-17 | 裕东（中山）机械工程有限公司 | Pneumatic vibrator |
| CN106612958A (en) * | 2016-12-29 | 2017-05-10 | 东北农业大学 | Vibration adjustable walnut picking machine |
| CN109225792A (en) * | 2018-09-17 | 2019-01-18 | 合肥工业大学 | A kind of exciter |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3292835A (en) * | 1964-03-28 | 1966-12-20 | Philips Corp | Vibratory drive for intermittent tape transport |
| US4927289A (en) * | 1988-06-24 | 1990-05-22 | M-B-W Inc. | Vibratory mechanism for a compaction roller |
| US20010004438A1 (en) * | 1999-12-21 | 2001-06-21 | Thomas Reis | Turbo-vibrator |
| CN101091949A (en) * | 2007-07-17 | 2007-12-26 | 陆信 | Box type vibration exciter of gear wheel with excentric mass |
| CN101997357A (en) * | 2010-11-19 | 2011-03-30 | 西安理工大学 | Generation method of one-way aperiodic vibration of single motor and one-way aperiodic vibration device |
| CN202070480U (en) * | 2011-05-26 | 2011-12-14 | 常州凯普自动化设备有限公司 | Wheel vibrator |
| CN202621428U (en) * | 2012-04-12 | 2012-12-26 | 裕东（中山）机械工程有限公司 | Gear engagement type air vibrator |
-
2012
- 2012-04-12 CN CN2012101071024A patent/CN102671853A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3292835A (en) * | 1964-03-28 | 1966-12-20 | Philips Corp | Vibratory drive for intermittent tape transport |
| US4927289A (en) * | 1988-06-24 | 1990-05-22 | M-B-W Inc. | Vibratory mechanism for a compaction roller |
| US20010004438A1 (en) * | 1999-12-21 | 2001-06-21 | Thomas Reis | Turbo-vibrator |
| CN101091949A (en) * | 2007-07-17 | 2007-12-26 | 陆信 | Box type vibration exciter of gear wheel with excentric mass |
| CN101997357A (en) * | 2010-11-19 | 2011-03-30 | 西安理工大学 | Generation method of one-way aperiodic vibration of single motor and one-way aperiodic vibration device |
| CN202070480U (en) * | 2011-05-26 | 2011-12-14 | 常州凯普自动化设备有限公司 | Wheel vibrator |
| CN202621428U (en) * | 2012-04-12 | 2012-12-26 | 裕东（中山）机械工程有限公司 | Gear engagement type air vibrator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013152636A1 (en) * | 2012-04-11 | 2013-10-17 | 裕东（中山）机械工程有限公司 | Pneumatic vibrator |
| CN106612958A (en) * | 2016-12-29 | 2017-05-10 | 东北农业大学 | Vibration adjustable walnut picking machine |
| CN109225792A (en) * | 2018-09-17 | 2019-01-18 | 合肥工业大学 | A kind of exciter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102626688B (en) | A kind of Efficient impeller-type pneumatic vibrator | |
| CN202833880U (en) | Reduction gear of hypocycloid planetary pin wheel | |
| CN100593653C (en) | Internal gear ring outputting planetary speed reducer | |
| CN202621428U (en) | Gear engagement type air vibrator | |
| CN102671853A (en) | Gear engagement type pneumatic vibrator | |
| CN205534040U (en) | Bearing capacity harmonic gear reduction gear when variably slows down | |
| CN203730666U (en) | Planet and small tooth difference structure integrated speed reducer | |
| CN201735509U (en) | Two shaft ellipse box type vibrator | |
| CN202621429U (en) | Gear mesh type directional air vibrator | |
| CN202621427U (en) | High-efficiency impeller type pneumatic vibrator | |
| CN110259890A (en) | A kind of axial direction shock wave movable teeth reducer | |
| CN201560903U (en) | Oscillating tooth transmission speed increasing box for wind driven generator | |
| CN206111961U (en) | Poor planet gear of tridentate linkage double crank pinwheel few tooth of output cycloid | |
| CN101818655B (en) | Planetary gear differential power plant | |
| CN204131313U (en) | A kind of Novel transmission Blast Furnace Top Gas Recovery Turbine Unit (TRT) | |
| CN108480202B (en) | Modularized self-balancing vibration exciter and vibration excitation system for vibrating screen | |
| CN207111847U (en) | A kind of planet knuckle-tooth formula decelerator | |
| CN202776757U (en) | Transferring adsorption roller | |
| CN201906710U (en) | Three-gear two-extended-shaft box-type vibration exciter elliptical vibrating screen | |
| CN204459011U (en) | A kind of compound full-depth tooth drives eccentric active-tooth transmission | |
| CN201087741Y (en) | One-axes multi-machine speeding wind generator set | |
| CN204904273U (en) | Roller envelope inner gearing worm and wormwheel transmission | |
| CN204534018U (en) | A kind of transmission device by pivoting support and reducer group | |
| CN203703051U (en) | Concave cycloidal gear structure | |
| CN203741680U (en) | Vibration wheel of road roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120919 |