CN101302736A - Vibrating wheel of vibration roller - Google Patents

Vibrating wheel of vibration roller Download PDF

Info

Publication number
CN101302736A
CN101302736A CNA2008101278625A CN200810127862A CN101302736A CN 101302736 A CN101302736 A CN 101302736A CN A2008101278625 A CNA2008101278625 A CN A2008101278625A CN 200810127862 A CN200810127862 A CN 200810127862A CN 101302736 A CN101302736 A CN 101302736A
Authority
CN
China
Prior art keywords
vibrating
rotating shaft
rotary shaft
shaft
bearing
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.)
Granted
Application number
CNA2008101278625A
Other languages
Chinese (zh)
Other versions
CN101302736B (en
Inventor
钱华
宋浩
程国强
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.)
HEFEI YONG'AN GREENBELT ENGINEERING MACHINERY Co Ltd
Original Assignee
HEFEI YONG'AN GREENBELT ENGINEERING MACHINERY Co Ltd
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 HEFEI YONG'AN GREENBELT ENGINEERING MACHINERY Co Ltd filed Critical HEFEI YONG'AN GREENBELT ENGINEERING MACHINERY Co Ltd
Priority to CN200810127862A priority Critical patent/CN101302736B/en
Publication of CN101302736A publication Critical patent/CN101302736A/en
Application granted granted Critical
Publication of CN101302736B publication Critical patent/CN101302736B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

The invention relates to a vibrating wheel of a vibrating road roller, in particular to a vibrating wheel of a vibrating road roller with vertical orientation. At least two shaft rotaries of a first rotary shaft and a second rotary shaft are arranged inside a vibrating body cover of the vibrating wheel, the first rotary shaft is positioned inside the second rotary shaft that is shaped like a hollow pipe, and the first rotary shaft and the second rotary shaft are in mutual, concentric and reverse rotation and respectively and coaxially fixed with a first group and a second group of eccentric blocks; shaft heads of the first rotary shaft and the second rotary shaft arranged outside an end of the vibrating body cover are respectively connected with a first gear pair and a second gear pair of a drive device that rotate reversely at constant speed; an end of a shell of the drive device that is close to the vibrating body cover is in rotary fitting with a bearing that is arranged in an inner cavity of a rolling wheel body, a gyration center of the bearing is coincident with gyration centers of the rolling wheel body and the first and the second rotary shafts, and the other end of the shell is connected with an overhung bracket through an oscillation damper assembly. The vibrating wheel of the vibrating road roller with vertical orientation is favorable for lowering the processing difficulty and the cost of the rotary shaft and reducing the deformation that is caused when bending the rotary shaft and exerting torsion moment on the rotary shaft.

Description

The vibrating wheels of vibratory roller
Technical field
The present invention relates to the vibrating wheels of vibratory roller, specifically is exactly the vibrating wheels of vertical orientation vibratory roller.
Background technology
In the prior art, in order to realize the vertical orientation vibration, many group eccentric blocks are set in the vibrating wheels of road roller, eccentric block is fitted to each other when rotating and obtains in vertical direction and makes a concerted effort, should be passed on the outside wheel body of vibrating wheels by support component with joint efforts, implement vertical vibration by the wheel body road pavement, road pavement is implemented compaction actions.
The two kinds of basic schemes that are provided with of organizing eccentric blocks: the first is provided with two or more rotating shafts that keeps a determining deviation each other and be parallel to each other more, belong to the shaft parallel formula or be called for short parallel-connection structure, fixedly install eccentric block in the rotating shaft, rely on the cooperation of eccentric block to rotate the exciting force that obtains vertically downward; It two is that two rotating shafts are set at least, and rotating shaft is concentric and serial connection mutually each other, and its shaft is the rotating shaft of free central, tubular, passes through for other rotating shaft in it, constitutes coaxial arrangement thus, belongs to rotating shaft string shell type and connects or be called for short cascaded structure.
In the latter's the concrete scheme, the end of rotating shaft and/or neck are supported and fixed on by bearing and pipe fitting in the inner chamber of wheel body, and the termination of rotating shaft links to each other with line shaft and receives the moment of torsion that line shaft transmits, and rotates thereby drive eccentric block.In fact line shaft is exactly the power output shaft of drive unit, and described drive unit is the transmission device that is made of gear pair, requires to realize that double-axis reverse rotates.The housing of drive unit relies on inboard end face and fixedlys connected with junction plate, the junction plate location is assemblied on the inner ring of bearing, bearing is installed on the radial webs that is provided with in the inner chamber of the end of mounting pipe or wheel body, and the outside of junction plate is by installing on the frame cantilever by shock absorber.For ease of explanation, the prior art can be defined as the external drive unit.In the external drive unit, the inner ring that junction plate and bearing are passed in the end of rotating shaft extends to housing one side of external drive unit, in order to realize connecting, the length of rotating shaft is longer, for slender axles, not only rotating shaft processing difficulties, and, shaft length strengthens the back distortion and strengthens, and the space length that is used for the mounting arrangements eccentric block is simultaneously reduced.
Summary of the invention
Purpose of the present invention just provides a kind of vibrating wheels of vibratory roller, optimizes the installation of drive unit, the effective length of reduction rotating shaft under the prerequisite of guaranteeing the eccentric block installation length, reduce rotating shaft difficulty of processing, improve the stress condition of rotating shaft.
For achieving the above object, the present invention has adopted following technical scheme: a kind of vibrating wheels of vibratory roller, comprise the scroll wheel wheel body, in the scroll wheel wheel intracoelomic cavity support former is set radially, support former inner ring portion the mount pad that ring set constitutes vibrating mechanism is set, vibrating mechanism comprises the vibrating body overcoat of socket shape, the vibrating body overcoat is fixed in the above-mentioned ring set, it is characterized in that: be provided with first at least in the described vibrating body overcoat, 2 two rotating shafts, first rotating shaft is positioned at second rotating shaft of hollow tubular and concentric each other backward rotation, be positioned at first of vibrating body overcoat inside, 2 two rotating shafts are respectively with first, two liang of group eccentric blocks are coaxial fixing, be positioned at first of vibrating body overcoat one end outside, 2 two rotating shaft spindle noses respectively with first of drive unit, two gear pairs link to each other, first, two gear pair constant speed backward rotation, the bearing formation that is provided with in one end of the close vibrating body overcoat on the housing of described drive unit and the scroll wheel wheel intracoelomic cavity is rotatably assorted, the centre of gyration of bearing and scroll wheel wheel body, first, the centre of gyration of 2 two rotating shafts overlaps, and the other end of housing is linked to each other with the support that overhangs by vibration damper complement.
In technique scheme, drive unit is to be directly installed between the end of vibrating body overcoat and the vibration damper complement, so just make rotating shaft effectively be reduced to distance the vibrating body overcoat that enters the socket shape that constitutes vibrating mechanism from leaving the drive unit housing, one side can effectively be reduced rotating shaft under the prerequisite of guaranteeing the eccentric block installation length length, the difficulty of processing of this favourable reduction rotating shaft and cost, improved the force environment that is subjected to of rotating shaft objectively, favourable minimizing rotating shaft is bent, the distortion during torsional interaction; In addition, when drive unit be that the objective arrangement space of drive unit along the axial length direction that reduced helps reasonable Arrangement and organize eccentric block more when being directly installed between the end of vibrating body overcoat and the vibration damper complement.
Description of drawings
Fig. 1 is the structural representation in vertical of the present invention cross section;
Fig. 2 is the structural representation in horizontal direction of the present invention cross section;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the structural representation of vibrating mechanism among the present invention;
Fig. 5 is the left view of Fig. 4;
Fig. 6,7 is respectively a partial enlarged drawing among Fig. 1,2.
The specific embodiment
Referring to Fig. 1,2, the vibrating wheels of vibratory roller, comprise scroll wheel wheel body 10, radially be provided with in scroll wheel wheel body 10 inner chambers and support former 11, support former 11 inner ring portions the mount pad that ring set 12 constitutes vibrating mechanism 20 is set, the composite unit structure that adopt to support former 11 and ring set 12 on the one hand can material saving, guarantee the reliable of mount pad simultaneously and be convenient to processing, vibrating mechanism 20 comprises the vibrating body overcoat 21 of socket shape, vibrating body overcoat 21 is fixed in the above-mentioned ring set 12, both are stationary fit, when the normal tumbling-type of scroll wheel wheel body 10 is walked, vibrating body overcoat 21 rotates synchronously with scroll wheel wheel body 10, and the support that overhangs, drive unit 60 keeps native mode, promptly keeps and the parallel of road surface or translation state.At least be provided with first in the described vibrating body overcoat 21,2 two rotating shafts 30,40, first rotating shaft 30 is positioned at second rotating shaft 40 of hollow tubular and concentric each other backward rotation, be positioned at first of vibrating body overcoat 21 inside, 2 two rotating shafts 30,40 respectively with first, two liang of group eccentric block 32a, 32b, 42a, 42b is coaxial fixing, be positioned at first of vibrating body overcoat 21 1 end outsides, 2 two rotating shafts 30,40 spindle noses respectively with first of drive unit 60, two gear pairs link to each other, first, two gear pair constant speed backward rotation, promptly first, 2 two rotating shafts 30,40 backward rotation is by first of drive unit 60, the backward rotation of two gear pairs is given security.
At least be provided with first, 2 two rotating shafts 30,40 basic purpose guarantees every rotating shaft 30 exactly, can install and fix one group of eccentric block on 40, can form specific exciting when the eccentric block backward rotation makes a concerted effort, both can provide the exciting of vertical direction to make a concerted effort thus, thereby realize the vibratory compaction on road pavement basis, bearing 70 formations that are provided with in close vibrating body overcoat 21 1 ends on the housing 61 of described drive unit 60 and scroll wheel wheel body 10 inner chambers are rotatably assorted, the centre of gyration of bearing 70 and scroll wheel wheel body 10, first, 2 two rotating shafts 30,40 the centre of gyration overlaps, the other end of housing 61 is linked to each other with the support that overhangs by vibration damper complement 80, and the support that overhangs does not show in the drawings.Provided a kind of concrete example among Fig. 1,2, promptly near ring set 12 places bearing support 13 has been set on the support former 11 in the described outside, the outside herein is meant the side of scroll wheel wheel body 10 near the end.Bearing support 13 is a cannula-like, and the housing 61 of drive unit 60 extends in the sleeve pipe of bearing support 13, and bearing 70 formations are rotatably assorted between the two, and bearing 70 selects for use radial antifriction bearing to get final product.For convenience of explanation, an end of the housing described in the present invention 61 and the other end are meant the two ends of length direction of the rotating shaft of housing 61 mounting teeth wheel sets.Near ring set 12 places, it is compact, reasonable to make the space arrange like this on the support former 11 outside bearing support 13 is set directly at.
Because drive unit 60 is to be directly installed between the end of vibrating body overcoat and the vibration damper complement, so just make that the length of the rotating shaft 30,40 between the vibrating body overcoat 21 of the housing 61 of drive unit 60 and socket shape is effectively reduced, under the prerequisite of guaranteeing the eccentric block installation length, effectively reduce the length of rotating shaft 30,40 like this, the difficulty of processing of this favourable reduction rotating shaft and cost have improved that rotating shaft is bent, the distortion during torsional interaction; In addition, when drive unit was directly installed between the end of vibrating body overcoat 21 and the vibration damper complement 80, the objective arrangement space of drive unit along the axial length direction that reduced was beneficial to the eccentric block reasonable Arrangement.
In conjunction with Fig. 4, described second rotating shaft 40 is positioned at the 3rd rotating shaft 50 of hollow tubular and concentric each other backward rotation, be positioned at the 3rd rotating shaft 50 and the 3rd group of eccentric block 52a of vibrating body overcoat 21 inside, 52b is coaxial fixing, described first, 3 two rotating shafts 30, first group of eccentric block 32a on 50,32b, the 3rd group of eccentric block 52a, 52b is positioned at second group of eccentric block 42a in second rotating shaft 40, the both sides of 42b, each other along axial length direction symmetric arrangement, adopt the mode of eccentric block symmetric arrangement can make vibrating wheels obtain to take turns the equally distributed load of length direction along it, the 3rd rotating shaft 50 that is positioned at vibrating body overcoat 21 outsides links to each other with the 3rd gear pair of drive unit 60.Three groups of eccentric blocks are set are for the making a concerted effort improving vibrating effect of quantitative vertical direction is provided, and many group eccentric blocks are set, can reduce the stressed of every group of eccentric block, improved the application life of eccentric block and bearing 23.
As shown in Figure 1, 2, described ring set 12 evenly is provided with 3~5 along the axial length direction of vibrating body overcoat 21, specifically provided the structure of 5 ring sets 12 among the figure, the load of each bearing of effect is even and less like this, the distortion of vibrating body overcoat 21 will diminish, and help prolonging the application life of vibrating mechanism 20 internal bearings and the application life of ring set 12.
In conjunction with Fig. 4, fix sheathed splined shaft 31,41 in described first and second two rotating shafts 30,40, first and second two groups of eccentric blocks are set in respectively on the axle body of splined shaft 31,41, adopt spline fitted can guarantee the stable and reliability that moment of torsion transmits.
In conjunction with Fig. 4,6,7, the two ends of described first rotating shaft 30 extend to the outside, two ends of second rotating shaft 40, second rotating shaft, 40 two ends extend to the outside, two ends of the 3rd rotating shaft 50, the length of the 3rd rotating shaft 50 is very short, two groups of eccentric block 42a, 42b are set in second rotating shaft 40, fixing sheathed splined shaft 51, the three groups of eccentric block 52a, 52b in the 3rd rotating shaft 50 is set on the axle body of splined shaft 51.
The stage casing fixed eccentric block of described splined shaft 31,41,51 is provided with bearing 23 between the supporting seat 22 that is provided with in the two ends of described splined shaft 31,41,51 and the vibrating body overcoat 21, can guarantee the location and the stability of rotation of splined shaft 31,41,51 like this.
As shown in Figure 4, internal spline cooperated on section was provided with external splines on the axle body and fixes sheathed splined shaft 51 in described the 3rd rotating shaft 50, and the place of eating dishes without rice or wine, outer end of the 3rd rotating shaft 50 is provided with that external splines links to each other in the rotating shaft of the 3rd gear pair on internal spline and the drive unit 60.

Claims (8)

1, a kind of vibrating wheels of vibratory roller, comprise scroll wheel wheel body (10), radially be provided with in scroll wheel wheel body (10) inner chamber and support former (11), support former (11) inner ring portion the mount pad that ring set (12) constitutes vibrating mechanism (20) is set, vibrating mechanism (20) comprises the vibrating body overcoat (21) of socket shape, vibrating body overcoat (21) is fixed in the above-mentioned ring set (12), it is characterized in that: be provided with first at least in the described vibrating body overcoat (21), 2 two rotating shafts (30), (40), first rotating shaft (30) is positioned at second rotating shaft (40) of hollow tubular and concentric each other backward rotation, be positioned at first of vibrating body overcoat (21) inside, 2 two rotating shafts (30), (40) respectively with first, two liang of group eccentric blocks are coaxial fixing, be positioned at first of vibrating body overcoat (21) one end outsides, 2 two rotating shafts (30), (40) spindle nose respectively with first of drive unit (60), two gear pairs link to each other, first, two gear pair constant speed backward rotation, bearing (70) formation that is provided with in close vibrating body overcoat (21) one ends on the housing (61) of described drive unit (60) and scroll wheel wheel body (10) inner chamber is rotatably assorted, the centre of gyration of bearing (70) and scroll wheel wheel body (10), first, 2 two rotating shafts (30), (40) the centre of gyration overlaps, and the other end of housing (61) is linked to each other with the support that overhangs by vibration damper complement (80).
2, the vibrating wheels of vibratory roller according to claim 1, it is characterized in that: the support former (11) in the described outside is gone up near ring set (12) and is located to be provided with bearing support (13), bearing support (13) is a cannula-like, the housing (61) of drive unit (60) extends in the sleeve pipe of bearing support (13), is made of bearing (70) between the two to be rotatably assorted.
3, the vibrating wheels of vibratory roller according to claim 1 and 2, it is characterized in that: described second rotating shaft (40) is positioned at the 3rd rotating shaft (50) of hollow tubular and concentric each other backward rotation, it is coaxial fixing with the 3rd group of eccentric block to be positioned at inner the 3rd rotating shaft (50) of vibrating body overcoat (21), described first, 3 two rotating shafts (30), (50) first on, three liang of group eccentric blocks are positioned at the both sides of the last second group of eccentric block of second rotating shaft (40), along axial length direction symmetric arrangement, be positioned at outside the 3rd rotating shaft (50) of vibrating body overcoat (21) and link to each other each other with the 3rd gear pair of drive unit (60).
4, the vibrating wheels of vibratory roller according to claim 1, it is characterized in that: fixing sheathed splined shaft (31), (41) are gone up in described first and second two rotating shafts (30), (40), and first and second two groups of eccentric blocks are set in respectively on the axle body of splined shaft (31), (41).
5, the vibrating wheels of vibratory roller according to claim 1, it is characterized in that: the two ends of described first rotating shaft (30) extend to the outside, two ends of second rotating shaft (40), second rotating shaft (40) two ends extend to the outside, two ends of the 3rd rotating shaft (50), two groups of eccentric blocks are set in second rotating shaft (40), fixing sheathed splined shaft (51) is gone up in the 3rd rotating shaft (50), and the 3rd group of eccentric block is set on the axle body of splined shaft (51).
6, the vibrating wheels of vibratory roller according to claim 1 is characterized in that: described ring set (12) evenly is provided with 3~5 along the axial length direction of vibrating body overcoat (21).
7, the vibrating wheels of vibratory roller according to claim 5, it is characterized in that: be provided with bearing (23) between the supporting seat (22) that is provided with in the stage casing fixed eccentric block of described splined shaft (31), (41), (51), the two ends of described splined shaft (31), (41), (51) and vibrating body overcoat (21).
8, the vibrating wheels of vibratory roller according to claim 5, it is characterized in that: section is provided with external splines on the axle body and cooperates with internal spline on the splined shaft (51) in described the 3rd rotating shaft (50), and the external splines that the external port place of the 3rd rotating shaft (50) is provided with in the rotating shaft of the 3rd gear pair on internal spline and the drive unit (60) links to each other.
CN200810127862A 2008-07-07 2008-07-07 Vibrating wheel of vibration roller Active CN101302736B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810127862A CN101302736B (en) 2008-07-07 2008-07-07 Vibrating wheel of vibration roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810127862A CN101302736B (en) 2008-07-07 2008-07-07 Vibrating wheel of vibration roller

Publications (2)

Publication Number Publication Date
CN101302736A true CN101302736A (en) 2008-11-12
CN101302736B CN101302736B (en) 2012-10-10

Family

ID=40112805

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200810127862A Active CN101302736B (en) 2008-07-07 2008-07-07 Vibrating wheel of vibration roller

Country Status (1)

Country Link
CN (1) CN101302736B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021876A (en) * 2009-09-12 2011-04-20 合肥腾虎机械科技有限公司 Directional vibration wheel of vibratory roller
CN102561156A (en) * 2011-05-27 2012-07-11 中联重科股份有限公司 Vibrating wheel of vibrated roller and vibrated roller
WO2012155532A1 (en) * 2011-05-16 2012-11-22 池州腾虎机械科技有限公司 Directional vibrating wheel for road rollers
CN103938530A (en) * 2014-04-30 2014-07-23 成都海凌达机械有限公司 Vibrating drum body
CN104675977A (en) * 2015-02-16 2015-06-03 合肥永安绿地工程机械有限公司 Gearbox assembly with self-lubricating structure for vertical orientation vibratory roller
CN104805756A (en) * 2015-03-31 2015-07-29 徐工集团工程机械股份有限公司道路机械分公司 Built-in vertical vibrating wheel for reversing mechanism
CN113622265A (en) * 2021-09-17 2021-11-09 樊文彪 High stability highway subgrade construction equipment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2794270B2 (en) * 1993-11-30 1998-09-03 酒井重工業株式会社 Vibration device for variable amplitude vibration roller
AU692479B2 (en) * 1993-11-30 1998-06-11 Sakai Heavy Industries, Ltd. Vibrating mechanism and apparatus for generating vibrations for a vibration compacting roller with a variable amplitude
CN2651293Y (en) * 2003-09-28 2004-10-27 徐州工程机械制造厂 Stepless amplitude compactor
CN2687408Y (en) * 2004-04-02 2005-03-23 陈启方 Vibrating output bearing structure for directional vibrating road roller vibration exciter
CN1948624B (en) * 2005-10-15 2010-12-08 陈启方 Vibration wheel of directional vibration road roller

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021876A (en) * 2009-09-12 2011-04-20 合肥腾虎机械科技有限公司 Directional vibration wheel of vibratory roller
CN102021876B (en) * 2009-09-12 2014-06-25 池州腾虎机械科技有限公司 Directional vibration wheel of vibratory roller
WO2012155532A1 (en) * 2011-05-16 2012-11-22 池州腾虎机械科技有限公司 Directional vibrating wheel for road rollers
CN102561156A (en) * 2011-05-27 2012-07-11 中联重科股份有限公司 Vibrating wheel of vibrated roller and vibrated roller
CN102561156B (en) * 2011-05-27 2014-06-11 中联重科股份有限公司 Vibrating wheel of vibrated roller and vibrated roller
CN103938530A (en) * 2014-04-30 2014-07-23 成都海凌达机械有限公司 Vibrating drum body
CN104675977A (en) * 2015-02-16 2015-06-03 合肥永安绿地工程机械有限公司 Gearbox assembly with self-lubricating structure for vertical orientation vibratory roller
CN104675977B (en) * 2015-02-16 2017-04-19 合肥永安绿地工程机械有限公司 Gearbox assembly with self-lubricating structure for vertical orientation vibratory roller
CN104805756A (en) * 2015-03-31 2015-07-29 徐工集团工程机械股份有限公司道路机械分公司 Built-in vertical vibrating wheel for reversing mechanism
CN113622265A (en) * 2021-09-17 2021-11-09 樊文彪 High stability highway subgrade construction equipment

Also Published As

Publication number Publication date
CN101302736B (en) 2012-10-10

Similar Documents

Publication Publication Date Title
CN101302736B (en) Vibrating wheel of vibration roller
CN103977868B (en) A kind of drive mechanism of horizontal planetary ball mill
AR052459A1 (en) SUSPENSION OF HIGH CLEAR VEHICLE WITH TWIN AXLES TO TRANSFER THE STEERING TORQUE
CN1948624B (en) Vibration wheel of directional vibration road roller
CN103079848A (en) Wheel suspension for a motor vehicle
CN106347091A (en) Clutch control type electric drive axle
CN106143132A (en) Strongly support type electric drive decelerator
CN203528297U (en) Drive axle with coaxial motor
CN202579693U (en) Shaft coupling for electric power-assisted steering system of automobile
CN104805756A (en) Built-in vertical vibrating wheel for reversing mechanism
CN101387098A (en) New road roller exciter apparatus
CN101302737A (en) Drive device of road roller vibration mechanism
CN103660929B (en) Electric vehicle transmission system
CN100464089C (en) New type annular plate type RV actuator
US20050104472A1 (en) Electric motor with the rotor connected to the member that is to be rotated
CN202139525U (en) Vibratory roller and vibrating wheel thereof
CN205344527U (en) Motor head power take -off
CN204715170U (en) The Vertical Vibrating driving wheel of built-in changement
CN201250378Y (en) Novel exciter device of road roller
CN203641406U (en) Gear case of powder coating double-screw extruder
CN201280401Y (en) Wheel train sliding bush type prop pulling hoist
CN202879734U (en) Driving device
CN202369902U (en) Fixed tube frame and vibration exciter used for vibratory roller and comprising fixed tube frame
CN212028360U (en) Power transmission device of novel closed type sweeper
CN201198786Y (en) Double-shaft type internal combustion engine power transmission and output mechanism

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant