CN108501902B - Positioning support leg - Google Patents
Positioning support leg Download PDFInfo
- Publication number
- CN108501902B CN108501902B CN201810434987.6A CN201810434987A CN108501902B CN 108501902 B CN108501902 B CN 108501902B CN 201810434987 A CN201810434987 A CN 201810434987A CN 108501902 B CN108501902 B CN 108501902B
- Authority
- CN
- China
- Prior art keywords
- positioning
- ear plate
- frame
- landing leg
- fixedly connected
- 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.)
- Active
Links
- 238000009434 installation Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000003754 machining Methods 0.000 description 9
- 230000008520 organization Effects 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a positioning support leg, which comprises a plurality of support legs and a plurality of oil cylinders, wherein the oil cylinders are vertically and fixedly connected with the rear ends of the support legs; the right end of the positioning pulling plate is hinged with the frame, three groups of positioning holes are formed in the middle end of the positioning pulling plate, and each group of positioning holes sequentially comprises a telescopic positioning hole for the fixed support leg when the crawler frame is telescopic, a mounting positioning hole for the fixed support leg when the crawler frame is mounted and a transportation positioning hole for the fixed support leg when the frame is transported from back to front. According to the invention, the three mounting holes, namely the telescopic positioning hole of the fixed support leg when the crawler frame is telescopic, the mounting positioning hole of the fixed support leg when the crawler frame is mounted and the transportation positioning hole of the fixed support leg when the frame is transported, are integrated on the positioning pulling plate, so that the design of the support leg is simplified, and the manufacturing difficulty of the frame and the support leg is reduced.
Description
Technical Field
The invention relates to a positioning support leg, and belongs to the technical field of support legs of crawler chassis.
Background
When the telescopic crawler chassis is provided with the supporting legs, the supporting legs generally need to have at least three installation orientations according to different functional requirements, as shown in fig. 1: 1. when the crawler frame is installed, the support legs need to provide enough front-back and left-right dimensions so as to ensure the stability of the installation process, and are generally at a relatively inclined angle; 2. when the crawler frame is telescopic, the supporting legs are generally required to be rotated to the front and back positions of the vehicle; 3. during transportation, the support leg is generally rotated to a position parallel to the left and right of the frame.
In order to ensure that the support leg works smoothly in various directions, an additional positioning device is needed besides the main hinge pin of the support leg, and the positioning mode of the pin shaft shown in fig. 2 or the positioning mode of the pull plate shown in fig. 3 is generally adopted in the prior art.
The method comprises the following steps: the pin shaft positioning mode. Positioning holes are respectively formed in the main hinge point lug plate of the support leg and the support leg seat plate on the frame, corresponding positions of functions are realized according to the requirements of the support leg, and a pin shaft is inserted to realize the positioning of the working state of the support leg.
For the telescopic crawler chassis, the functions of telescopic crawler frames, installing crawler frames and transporting along with a frame are realized, the supporting legs at least need to be provided with three positions for corresponding, and three groups of positioning hole combinations are needed, as shown in fig. 2, three groups of holes are formed in the supporting leg seat plate or the supporting leg main hinge point lug plate in the prior art, or two groups of holes are respectively formed in the supporting leg seat plate and the supporting leg main hinge point lug plate on the frame to form three positions.
Meanwhile, when the pin shaft positioning mode is adopted, the supporting legs are symmetrically arranged in use, and the symmetrical parts are formed in the supporting leg structure due to the arrangement of the positioning holes, so that the supporting legs installed on one trolley cannot be made into one type, two types or even four types of parts to be produced are required to be made, the production organization and management are affected, and the probability of errors in splice welding, machining and assembly is increased. When a plurality of groups of positioning holes are formed at the hinge point of each supporting leg on the frame, the machining process of the frame becomes complex, the frame belongs to a large-scale structural member, the machining process is easy to form a production bottleneck, and the machining of the excessive positioning holes can cause frosting on snow, so that the production process is seriously influenced.
The second method is as follows: and (5) a pulling plate positioning mode. The frame and the supporting legs are provided with a pulling plate positioning pin shaft and a pulling plate positioning pin shaft lug plate, and the length of the pulling plate is determined and the pulling plate is customized according to the working position requirement of the supporting legs. To meet the different position requirements of the supporting legs, the arrangement of the pull plate or the pin shaft lug plate is necessarily non-unique. Either the pulling plates with different lengths are made, or a plurality of groups of positioning pin shaft ear plates are arranged on the frame or the supporting leg, and a scheme of arranging a plurality of groups of positioning pin shaft ear plates on the supporting leg is generally adopted.
When the pull plate positioning mode is used for arranging a plurality of groups of positioning pin shaft ear plates on the supporting legs, the structural diversity of the supporting legs which are symmetrically placed can be caused, the production organization and management are affected, and the assembly welding and the assembly are easy to be wrong.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the supporting leg and the positioning mode thereof, and integrates all the telescopic positioning holes for fixing the supporting leg when the crawler frame is telescopic, the mounting positioning holes for fixing the supporting leg when the crawler frame is mounted and the transportation positioning holes for fixing the supporting leg when the frame is transported into the positioning pull plate, so that the supporting leg of the whole vehicle is of a structure, the structural design of the corresponding positions of the supporting leg and the frame is simplified, and the manufacturing difficulty of the frame and the supporting leg is reduced.
In order to achieve the purpose, the invention provides a positioning support leg which comprises a plurality of support legs and a plurality of oil cylinders, wherein the oil cylinders are vertically and fixedly connected with the rear ends of the support legs, and the front ends of the support legs are respectively and rotatably connected with a frame; still include a plurality of location arm-tie, a plurality of location arm-tie right-hand member front end all articulates the frame, a plurality of all offer at least three group's locating hole on the location arm-tie middle-end, at least three group's locating hole is by the back forward including in proper order be used for fixing when flexible track frame the flexible locating hole of landing leg, be used for fixing when installing the track frame the installation locating hole of landing leg, be used for fixing when the frame transportation the transportation locating hole of landing leg, location arm-tie middle-end fixed connection the landing leg.
Preferentially, the bicycle comprises a fixing piece, wherein a groove matched with the fixing piece is formed in the bicycle frame, the front ends of the fixing piece are fixedly connected with the groove, and the front ends of a plurality of supporting legs are hinged with the fixing piece.
Preferentially, two the landing leg is articulated symmetrically the mounting, the mounting includes fixing base, upper left otic placode, lower left otic placode, upper right otic placode and lower right otic placode, upper left side otic placode lower left otic placode right side otic placode upper right side otic placode with lower right otic placode respectively through screw fixed connection upper left end, lower left end, upper right end and the lower right end of fixing base, upper left side otic placode lower left otic placode upper right otic placode with lower right otic placode front end is all through round pin axle fixed connection frame, upper left side otic placode lower left side otic placode right side otic placode with lower right side otic placode rear end is all fixed connection the landing leg.
Preferentially, the support leg comprises two positioning pull plates and two positioning seats, the positioning seats are fixedly connected with the top wall of the support leg, positioning holes are formed in the middle ends of the positioning seats, three groups of positioning holes in the positioning pull plates are fixedly connected with the positioning holes through pull plate fixing pins, frame positioning holes are symmetrically and vertically formed in the left upper ear plate and the right upper ear plate, and the front ends of the positioning pull plates are fixedly connected with the frame positioning holes through pins.
Preferentially, the two main connecting pins and two auxiliary connecting pins are included, the upper parts of the front ends of the supporting legs are respectively provided with a main through hole matched with the main connecting pins, the lower parts of the front ends of the supporting legs are respectively provided with auxiliary through holes matched with the auxiliary connecting pins, the two auxiliary connecting pins respectively penetrate through the left lower ear plate and the right lower ear plate and then are hinged with one auxiliary through hole, and the two main connecting pins respectively penetrate through the left upper ear plate and the right upper ear plate and then are hinged with one main through hole.
Preferably, the positioning seat is in an inverted U shape.
Preferably, the device comprises four baffles, wherein two top walls of the main connecting pin shafts and two bottom walls of the auxiliary connecting pin shafts are respectively provided with the baffles, and the four baffles are respectively and fixedly connected with the left upper ear plate, the left lower ear plate, the right upper ear plate and the right lower ear plate through screws.
The invention has the beneficial effects that:
the positioning mode of the supporting leg is designed into a pulling plate fixing mode, the telescopic positioning holes for fixing the supporting leg when the crawler frame is telescopic, the installation positioning holes for fixing the supporting leg when the crawler frame is installed and the transportation positioning holes for fixing the supporting leg when the frame is transported are all integrated on the positioning pulling plate, the supporting leg of the whole vehicle is of a uniform structure, the structural design of the corresponding positions of the supporting leg and the frame is simplified, and the manufacturing difficulty of the frame and the supporting leg is reduced.
The frame is hinged with the supporting legs through the fixing seats, and the position of the supporting legs in different working states can be adjusted smoothly by means of the three through holes of the telescopic positioning holes, the mounting positioning holes and the transportation positioning holes which are formed in the pull plate, so that the supporting legs can be ensured to work safely under various conditions, the supporting legs are prevented from being damaged, the structure is simple, and the operation is convenient; the device enables four supporting legs of engineering machinery adopting the telescopic crawler chassis to be of a unified type, reduces the design and manufacturing difficulty of the frame and the supporting legs, is convenient for production organization and management, and prevents mismatching and mismatching during the assembly process of splice welding, machining and assembling.
Drawings
FIG. 1 is a schematic view of the different operating conditions of the legs of a prior art telescoping crawler chassis;
FIG. 2 is a block diagram of a pin positioning version of the prior art;
FIG. 3 is a block diagram of a prior art tie plate positioning pattern;
FIG. 4 is a block diagram of the present invention;
fig. 5 is a structural diagram of the present invention.
The meaning of the symbols in the attached drawings, 1-frame; 2-positioning seats; 3-telescoping positioning holes; 4, installing a positioning hole; 5-transporting and positioning holes; 6, positioning a pin shaft; 7-positioning a pull plate; 8-supporting leg fixing holes; 9-a frame positioning hole; 10-supporting legs; 11-a fixed seat on the frame; 12-pulling a plate fixed pin shaft; 13-positioning holes; 14-a main connecting pin shaft; 15-a pair of connecting pins; 16-an oil cylinder; 21-a supporting leg mounting pin shaft; 22-positioning pull plates; 23-pulling a pin shaft ear seat; 24-pulling a plate pin shaft; 25-landing leg positioning holes; 27-left track frame; 28-right track frame; 29-a fixing member; a, a telescopic crawler frame state; b, installing and dismantling a crawler frame; c-an integrated transportation state along with the frame; d-a telescopic crawler frame state, E-a detachable crawler frame state and F-a frame-following integrated transportation state.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, and the following examples are only for more clearly illustrating the technical aspects of the present invention, and are not to be construed as limiting the scope of the present invention.
The positioning support leg comprises a plurality of support legs 10 and a plurality of oil cylinders 16, wherein the oil cylinders 16 are vertically and fixedly connected with the rear ends of the support legs 10, and the front ends of the support legs 10 are all rotatably connected with a frame 1; still include a plurality of location arm-tie 7, a plurality of location arm-tie 7 right-hand member front end all articulates frame 1, a plurality of all offer at least three group's locating hole on the location arm-tie 7 middle-end, at least three group's locating hole is by the back forward including in proper order be used for fixing when flexible track frame the flexible locating hole of landing leg, be used for fixing when installing the track frame the installation locating hole of landing leg, be used for the frame transportation time fixing the transportation locating hole of landing leg, location arm-tie 7 middle-end fixed connection landing leg 10.
Further, the bicycle frame comprises a fixing piece 29, a groove matched with the fixing piece 29 is formed in the bicycle frame 1, the front ends of the fixing piece 29 are fixedly connected with the groove, and the front ends of the supporting legs 10 are hinged to the fixing piece 29.
Further, the two supporting legs 10 are symmetrically hinged to the fixing piece 29, the fixing piece 29 comprises a fixing seat, an upper left ear plate, a lower left ear plate, an upper right ear plate and a lower right ear plate, the upper left ear plate, the lower left ear plate, the upper right ear plate and the lower right ear plate are fixedly connected with the upper left end, the lower left end, the upper right end and the lower right end of the fixing seat through screws respectively, the upper left ear plate, the lower left ear plate, the upper right ear plate and the front end of the lower right ear plate are fixedly connected with the frame 1 through pin shafts, and the upper left ear plate, the lower left ear plate, the upper right ear plate and the rear end of the lower right ear plate are fixedly connected with the supporting legs 10.
Further, including two location arm-tie 7 and two positioning seat 2, positioning seat 2 fixed connection landing leg 10 roof, positioning hole 13 is seted up to positioning seat 2 middle-end, three sets of locating holes on the location arm-tie 7 pass through arm-tie fixed pin 12 fixed connection positioning hole 13, upper left otic placode with upper right otic placode is last all symmetrically vertically to set up frame locating hole 9, location arm-tie 7 front end passes through round pin axle fixed connection frame locating hole 9.
Further, the two main connecting pins 14 and two auxiliary connecting pins 15 are included, the upper parts of the front ends of the supporting legs 10 are provided with main through holes matched with the main connecting pins 14, the lower parts of the front ends of the supporting legs 10 are provided with auxiliary through holes matched with the auxiliary connecting pins 15, the two auxiliary connecting pins 15 respectively penetrate through the left lower ear plate and the right lower ear plate and then are hinged with one auxiliary through hole, and the two main connecting pins 14 respectively penetrate through the left upper ear plate and the right upper ear plate and then are hinged with one main through hole.
Further, the positioning seat 2 is in an inverted U shape.
Further, the left upper ear plate, the left lower ear plate, the right upper ear plate and the right lower ear plate are respectively and fixedly connected through screws.
The device enables four supporting legs of engineering machinery adopting the telescopic crawler chassis to be of a unified type, thereby reducing the design and manufacturing difficulty of the frame and the supporting legs, facilitating production organization and management and preventing mismatching, mismatching and mismatching during assembly processes of splice welding, machining and assembly.
According to the invention, the positioning mode of the supporting leg is designed into a pulling plate fixing mode, the supporting leg is adjusted at different positions under different working states, the positioning is realized by means of the three through holes of the telescopic positioning hole, the mounting positioning hole and the transportation positioning hole which are formed in the positioning pulling plate, and the supporting leg is ensured to be fixed at a specified position under the three conditions of integrally transporting the telescopic crawler frame, the mounting and dismounting crawler frame, the supporting leg and the oil cylinder along with the frame.
The invention integrates the pin shaft positioning and the pulling plate positioning of the supporting legs to realize the structural unification of the supporting legs and the pulling plates, only one supporting leg and one pulling plate are needed for one trolley, and the positioning holes of each supporting leg, which correspond to the frame and the supporting legs, are only one group, so that the pulling plate ear plates are not needed to be positioned, the structure is simplified, the machining amount is reduced, the occurrence of splice welding, machining and assembling errors is avoided, and the production organization and management are also convenient.
The support leg 10 only needs to be provided with a group of positioning holes 13 on the symmetrical surface of the upper positioning seat 2, so that the unified support leg structure is realized, the purpose that only one support leg 10 model is arranged on one trolley is achieved, and the processing difficulty of the positioning holes is reduced. Each supporting leg 10 is correspondingly provided with only one frame positioning hole 9 on the frame 1 to realize the function of adjusting the supporting leg position, so that the structure is simple, and the machining process of the frame is simplified.
The position adjusting and positioning functions of the supporting legs 10 in different working states are integrated on the positioning pull plate 7, the positioning pull plate 7 is provided with the telescopic positioning holes 3, the mounting positioning holes 4 and the transportation positioning holes 5 at the same time, and the requirements of the supporting legs in different working states are respectively met: the root positioning hole 8 is a fixed hole and is always hinged with the frame positioning hole 9 on the frame 1 by a pulling plate fixed pin shaft 12. And the telescopic positioning holes 3, the mounting positioning holes 4 and the transporting positioning holes 5 on the positioning pull plate 7 are adjusting holes of the supporting legs.
When the locating pin shaft 6 of the pulling plate connects the locating hole 13 on the supporting leg 10 with the transporting locating hole 5 on the locating pulling plate 7, the supporting leg 10 is positioned at an integrated transporting position along with the frame 1;
when the locating pin shaft 6 of the pull plate connects the locating hole 13 on the supporting leg 10 with the installation locating hole 4 on the locating pull plate 7, the supporting leg 10 is positioned at the position of installing and dismantling the crawler frame;
when the locating pin shaft 6 of the pulling plate connects the locating hole 13 on the supporting leg 10 with the telescopic locating hole 3 on the locating pulling plate 7, the supporting leg 10 is positioned on the telescopic crawler frame.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (3)
1. The utility model provides a location landing leg, includes a plurality of landing leg (10) and a plurality of hydro-cylinder (16), hydro-cylinder (16) vertical fixed connection the rear end of landing leg (10), a plurality of landing leg (10) front end all rotates connection frame (1), and a plurality of location arm-tie (7) are still included, a plurality of location arm-tie (7) front end all articulates frame (1), a plurality of all offer at least three group's locating hole on location arm-tie (7) middle-end, and at least three group locating hole is from the back forward including in proper order be used for fixing the flexible locating hole of landing leg when flexible track frame, be used for fixing when installing the track frame the installation locating hole of landing leg, be used for fixing when frame transportation the transportation locating hole of landing leg, location arm-tie (7) middle-end fixed connection landing leg (10);
the bicycle comprises a fixing piece (29), wherein a groove matched with the fixing piece (29) is formed in a bicycle frame (1), the front ends of the fixing piece (29) are fixedly connected with the groove, and the front ends of a plurality of supporting legs (10) are hinged with the fixing piece (29);
the two supporting legs (10) are symmetrically hinged with the fixing piece (29), the fixing piece (29) comprises a fixing seat, an upper left ear plate, a lower left ear plate, an upper right ear plate and a lower right ear plate, the upper left ear plate, the lower left ear plate, the upper right ear plate and the lower right ear plate are fixedly connected with the upper left end, the lower left end, the upper right end and the lower right end of the fixing seat respectively through screws, the upper left ear plate, the lower left ear plate, the upper right ear plate and the front end of the lower right ear plate are fixedly connected with the frame (1) through pin shafts, and the upper left ear plate, the lower left ear plate, the upper right ear plate and the rear end of the lower right ear plate are fixedly connected with the supporting legs (10);
the positioning device comprises two positioning pull plates (7) and two positioning seats (2), wherein the positioning seats (2) are fixedly connected with the top wall of a supporting leg (10), positioning holes (13) are formed in the middle ends of the positioning seats (2), three groups of positioning holes on the positioning pull plates (7) are fixedly connected with the positioning holes (13) through pull plate fixing pins (12), frame positioning holes (9) are symmetrically and vertically formed in the upper left ear plate and the upper right ear plate, and the front ends of the positioning pull plates (7) are fixedly connected with the frame positioning holes (9) through pins;
including two main connecting pin axle (14) and two vice connecting pin axle (15), the cooperation is all offered on landing leg (10) front end upper portion the main through-hole of main connecting pin axle (14), the cooperation is all offered to landing leg (10) front end lower part vice through-hole of vice connecting pin axle (15), two vice connecting pin axle (15) pass respectively left lower otic placode with right lower otic placode back articulates one vice through-hole, two main connecting pin axle (14) pass respectively left upper otic placode with right upper otic placode back articulates one main through-hole.
2. A positioning leg according to claim 1, characterized in that the positioning seat (2) is of inverted U-shape in shape.
3. A positioning leg according to claim 1, characterized in that it comprises four baffles, two of which are provided on the top wall of the main connecting pin (14) and the bottom wall of the auxiliary connecting pin (15), and which are fixedly connected to the upper left ear plate, the lower left ear plate, the upper right ear plate and the lower right ear plate, respectively, by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810434987.6A CN108501902B (en) | 2018-05-09 | 2018-05-09 | Positioning support leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810434987.6A CN108501902B (en) | 2018-05-09 | 2018-05-09 | Positioning support leg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108501902A CN108501902A (en) | 2018-09-07 |
| CN108501902B true CN108501902B (en) | 2024-04-16 |
Family
ID=63399990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810434987.6A Active CN108501902B (en) | 2018-05-09 | 2018-05-09 | Positioning support leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108501902B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112647842B (en) * | 2020-12-24 | 2022-08-12 | 江苏徐工工程机械研究院有限公司 | Modularization landing leg and rig for rig |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064595A (en) * | 2008-09-10 | 2010-03-25 | Kobelco Cranes Co Ltd | Lower traveling body of crawler type vehicle |
| CN203186472U (en) * | 2013-04-28 | 2013-09-11 | 中联重科股份有限公司 | crawler-type chassis and crawler-type engineering machinery |
| JP2015155230A (en) * | 2014-02-20 | 2015-08-27 | コベルコ建機株式会社 | Base carrier of crawler type vehicle |
| CN204676629U (en) * | 2015-05-21 | 2015-09-30 | 常州迈腾机械有限公司 | A kind of excavator with swing leg |
| CN205719756U (en) * | 2016-07-04 | 2016-11-23 | 胡玥 | The control power that a kind of power of control loading head can rotate adds carrier aircraft |
| CN208278024U (en) * | 2018-05-09 | 2018-12-25 | 徐工集团工程机械股份有限公司 | A kind of positioning support leg |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7267066B2 (en) * | 2005-05-27 | 2007-09-11 | Derner Technologies, Inc. | Boat lift |
| US20110163523A1 (en) * | 2010-01-04 | 2011-07-07 | Ken Smith | Trailer support apparatus and methods |
| US9764762B2 (en) * | 2014-05-13 | 2017-09-19 | Gomaco Corporation | Rotary pivot arm positioning assembly |
-
2018
- 2018-05-09 CN CN201810434987.6A patent/CN108501902B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064595A (en) * | 2008-09-10 | 2010-03-25 | Kobelco Cranes Co Ltd | Lower traveling body of crawler type vehicle |
| CN203186472U (en) * | 2013-04-28 | 2013-09-11 | 中联重科股份有限公司 | crawler-type chassis and crawler-type engineering machinery |
| JP2015155230A (en) * | 2014-02-20 | 2015-08-27 | コベルコ建機株式会社 | Base carrier of crawler type vehicle |
| CN204676629U (en) * | 2015-05-21 | 2015-09-30 | 常州迈腾机械有限公司 | A kind of excavator with swing leg |
| CN205719756U (en) * | 2016-07-04 | 2016-11-23 | 胡玥 | The control power that a kind of power of control loading head can rotate adds carrier aircraft |
| CN208278024U (en) * | 2018-05-09 | 2018-12-25 | 徐工集团工程机械股份有限公司 | A kind of positioning support leg |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108501902A (en) | 2018-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108501902B (en) | Positioning support leg | |
| CN106392565B (en) | Vehicle door assembling tool | |
| CN101648669A (en) | Split assembled type staircase step framework structure | |
| CN203185195U (en) | Process device used for combing cross beam and connecting plate | |
| CN206426830U (en) | A kind of engine rear support device and cargo vehicle | |
| CN110962918B (en) | Steering gear mounting structure with adjustable hard points | |
| CN208648653U (en) | A kind of quick-replaceable carrying wheel construction of overturning | |
| CN214135723U (en) | Auxiliary positioning device for hub assembly | |
| CN204915268U (en) | Suspension installing support for [electric] motor coach driving motor | |
| CN101585482A (en) | Split assembled type staircase step structure | |
| CN207957544U (en) | Single-beam reinforcing vehicle frame used for electric hoist | |
| CN220744337U (en) | Sorting trolley modularization running mechanism and sorting equipment | |
| CN220640041U (en) | Detachable carriage door plate structure convenient to overhaul | |
| CN214189794U (en) | High-strength steel tractor crossbeam structure | |
| CN218742948U (en) | Vehicle body coating support | |
| CN112108831A (en) | Tank car assembling tool and assembling method | |
| CN220265134U (en) | Automobile lifting device | |
| CN214324938U (en) | Front row seat installation front beam convenient to installation | |
| CN219246271U (en) | Bottom framework | |
| CN220842658U (en) | Steering support assembly | |
| CN213705426U (en) | Rail transport vehicle convenient to change wheel | |
| CN216830697U (en) | Car sun visor board mirror lid round pin axle frock of impressing | |
| CN221418085U (en) | New structure of flexible car body turnover appliance | |
| CN220353964U (en) | Vacuum tank installing support | |
| CN221163081U (en) | Truck chassis assembly line strutting arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |