CN104494417A - Wheel assembly for aerial work platform - Google Patents
Wheel assembly for aerial work platform Download PDFInfo
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- CN104494417A CN104494417A CN201410836282.9A CN201410836282A CN104494417A CN 104494417 A CN104494417 A CN 104494417A CN 201410836282 A CN201410836282 A CN 201410836282A CN 104494417 A CN104494417 A CN 104494417A
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- wheel
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- oil cylinder
- mount pad
- connecting element
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Abstract
The invention discloses a wheel assembly for an aerial work platform. The wheel assembly comprises a wheel beam, a steering mechanism, a leveling mechanism and driving wheel assemblies arranged at both ends of the wheel beam; each driving wheel assembly comprises a wheel mounting base, a wheel motor and a wheel; the wheel beam comprises two beam steel plates which are vertically arranged, a beam connecting plate arranged between the two beam steel plates and a U-shaped hinged seat arranged between the two beam steel plates; the U-shaped hinged seat is of an integral structure formed by stamping one integral steel plate so as to form mounting base rotating grooves for accommodating the wheel mounting bases in the U-shaped hinged seat. The wheel assembly has the advantages that when stable rotational connection is provided for the driving wheel assemblies, the integral structure is simpler and more practical; moreover, better spatial layout can be realized.
Description
Technical field
The present invention relates to a kind of wheel set for high-altitude operation platform.
Background technology
High-altitude operation platform (Aerial work platform) is the product of serving the mobility aloft work such as every profession and trade aloft work, equipment installation, maintenance.High-altitude operation platform Related product mainly contains: the large class of scissor aerial work platform, in-vehicle high-altitude operation platform, crank type aerial working platform, self-propelled aloft working platform, aluminum alloy high-altitude operation platform, double-cylinder type high-altitude operation platform six.In high-altitude operation platform operation process, platform operations requires higher mobile alerting ability, therefore four drive wheels of platform operations adopt freestanding motor to drive usually, therefore the mounting structure that how design driven is taken turns, make four drive wheels can while individual drive, can cooperative motion, and load-carrying capacity and the stability of the drive wheel in use procedure will be ensured, it is the problem that designer needs to consider, the existing car wheel structure for high-altitude operation platform due to structure design unreasonable, cause topology layout comparatively complicated, thus install comparatively loaded down with trivial details, manufacturing cost is higher.
Summary of the invention
The object of the invention is to overcome above shortcomings in prior art, and provide a kind of reasonable in design, integral structure is more simple and practical, and can realize the wheel set for high-altitude operation platform of better space layout.
The present invention's adopted technical scheme that solves the problem is:
A kind of wheel set for high-altitude operation platform, described wheel set comprises wheel crossbeam, steering hardware, levelling gear and is arranged on the drive wheel assembly at wheel crossbeam two ends, it is characterized in that: described drive wheel assembly comprises wheel mount pad, wheel electrical machine and wheel, vehicle wheel rotation is arranged on wheel mount pad, and drives vehicle wheel rotation by the wheel electrical machine on wheel mount pad.Described wheel crossbeam comprises the two panels crossbeam steel plate vertically arranged, the U-shaped hinged seat being arranged on the cross-beam connecting plate between two panels crossbeam steel plate and being arranged between two panels crossbeam steel plate, wheel crossbeam bearing pin is horizontally disposed with, wherein, U-shaped hinged seat is the integral structure of a monoblock steel plate punched, thus the mount pad rotation slot formed on U-shaped hinged seat for holding wheel mount pad, the two sides of U-shaped hinged seat are welded on the inwall of two panels crossbeam steel plate respectively, U-shaped hinged seat offers upper and lower two the first hinge holes, described wheel mount pad comprises the wheel mount pad base plate vertically arranged, oil cylinder connecting strap, synchronizing bar connecting strap and two panels rotate installation sheet relative to what distribute up and down, two panels is rotated on installation sheet and is all offered the second hinge hole, oil cylinder connecting strap, synchronizing bar connecting strap offers respectively oil cylinder hinge hole and synchronizing bar hinge hole, first hinge hole of top and the second hinge hole of top are by the first pinned connection, first hinge hole of below and the second hinge hole of below are by the second pinned connection, the axis of the first bearing pin, the axis of the second bearing pin coexists on a vertical curve.Thus drive wheel assembly integral is rotatably installed in the two ends of wheel crossbeam, the upper and lower side of drive wheel assembly passes through the first bearing pin, the second hinge in mount pad rotation slot, while drive wheel assembly provides stable being rotationally connected, integral structure is more simple and practical, and can realize better space layout.
As preferably, one end of oil cylinder connecting strap and one end of synchronizing bar connecting strap are provided with rectangular-shaped welding breach, the face that welding two of breach is mutually right angle is weldingly fixed on respectively on wheel mount pad base plate and is mutually on rectangular base plate front and bottom panel side, oil cylinder connecting strap, synchronizing bar connecting strap, two panels is rotated installation sheet equal relative wheel mount pad base plate and is vertically arranged, wherein, between oil cylinder connecting strap and synchronizing bar connecting strap, synchronizing bar connecting strap and wherein a slice are rotated between installation sheet, wherein a slice rotation installation sheet and another sheet rotate between installation sheet, another sheet rotates installation sheet and is provided with between oil cylinder connecting strap for strengthening that wheel mount pad is integrally-built welds reinforcement.Thus make oil cylinder connecting strap, synchronizing bar connecting strap and wheel mount pad base plate can have larger face of weld, while reducing materials, improve overall intensity, the stable operation under making it go for various complex road condition.
As preferably, steering hardware comprise one turn to Connection Block, two turn to and regulate oil cylinder and a synchronization regulation bar, wherein, the two panels pin-joint piece turn to Connection Block to comprise connecting element cylindrically and be arranged on two panels pin-joint piece on the left of connecting element, be arranged on two panels pin-joint piece on the right side of connecting element, being arranged on the two panels pin-joint piece on the left of connecting element, being arranged on the right side of connecting element is provided with the 3rd hinge hole.Two panels pin-joint piece on the left of connecting element is parallel to each other, and the two panels pin-joint piece on the right side of connecting element is parallel to each other.Two panels pin-joint piece on the left of one end of connecting element, connecting element, the two panels pin-joint piece on the right side of connecting element are all weldingly fixed on crossbeam steel plate.One turns to one end of adjustment oil cylinder to be arranged between the two panels pin-joint piece on the left of connecting element, one is turned to and regulates one end of oil cylinder to be rotatably installed in by the 3rd bearing pin be located on the two panels pin-joint piece on the left of connecting element to turn on Connection Block, another root turns to and regulates one end of oil cylinder to be arranged between the two panels pin-joint piece on the right side of connecting element, another root is turned to and regulates one end of oil cylinder to be rotatably installed in by the 3rd bearing pin be located on the two panels pin-joint piece on the right side of connecting element to turn on Connection Block, one turns to the other end of adjustment oil cylinder and another root to turn to the other end of adjustment oil cylinder to be hinged on the oil cylinder hinge hole of correspondence position wheel mount pad respectively, the two ends of synchronization regulation bar be hinged on respectively be positioned at wheel crossbeam two ends synchronizing bar hinge hole on.Thus pass through, drive and turn to the wheel mount pad regulating oil cylinder band motor car wheel crossbeam two ends to rotate, and the synchronism of wheel mount pad rotation process is realized by synchronization regulation bar, avoid turning to asynchronous by two drive wheels at the two ends of the wheel crossbeam regulating oil cylinder power inequality to bring, the wheel damage caused, thus the smoothness and the safety that improve steering procedure.
The present invention compared with prior art, has the following advantages and effect:
1) thus drive wheel assembly integral is rotatably installed in the two ends of wheel crossbeam, the upper and lower side of drive wheel assembly passes through the first bearing pin, the second hinge in mount pad rotation slot, while drive wheel assembly provides stable being rotationally connected, integral structure is more simple and practical, and can realize better space layout.
2), thus make oil cylinder connecting strap, synchronizing bar connecting strap and wheel mount pad base plate can have larger face of weld, while reducing materials, overall intensity is improved, the stable operation under making it go for various complex road condition.
3) thus pass through, drive and turn to the wheel mount pad regulating oil cylinder band motor car wheel crossbeam two ends to rotate, and the synchronism of wheel mount pad rotation process is realized by synchronization regulation bar, avoid turning to asynchronous by two drive wheels at the two ends of the wheel crossbeam regulating oil cylinder power inequality to bring, the wheel damage caused, thus the smoothness and the safety that improve steering procedure.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiment of the present invention chassis structure.
Fig. 2 is the structural representation on another visual angle of embodiment of the present invention chassis structure.
Fig. 3 is the mounting structure schematic diagram of embodiment of the present invention wheel set.
Fig. 4 is the structural representation of embodiment of the present invention wheel set.
Fig. 5 is the structural representation of embodiment of the present invention wheel crossbeam.
Fig. 6 is the structural representation of embodiment of the present invention wheel mount pad.
Detailed description of the invention
Below in conjunction with accompanying drawing, also by embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
See Fig. 1-Fig. 6, the present embodiment the present embodiment is used for the chassis assembly of high-altitude operation platform, comprise support assembly 1, wheel set 2, wherein, support assembly 1 comprises two crossbeams 11, for connecting multiple crossbeam connecting panels 12 and two wheel set mount pads 13 for installing wheel assembly 2 of two crossbeams 11, two wheel set mount pads 13 arrange the rear and front end of crossbeam 11 respectively, wheel set mount pad 13 is the integral structure of a monoblock steel plate punched, wheel set mount pad 13 is provided with the wheel set mounting groove of U-shaped, described wheel set 2 comprises wheel crossbeam 21, steering hardware, levelling gear and be arranged on the drive wheel assembly at wheel crossbeam 21 two ends, wheel crossbeam 21 is rotatably installed in wheel set mounting groove by crossbeam turning cylinder, thus all provided support a little by the rear and front end that wheel set mounting groove is crossbeam turning cylinder, improve in wheel crossbeam 21 rotation process, machinery integral intensity, described drive wheel assembly comprises wheel mount pad 22, wheel electrical machine 23 and wheel 24, wheel 24 is rotatably installed on wheel mount pad 22, and drive wheel 24 to rotate by the wheel electrical machine 23 on wheel mount pad 22.
Levelling gear comprises leveling cyclinder 25, and every secondary wheel set 2 is provided with two leveling cyclinders 25, and two leveling cyclinders 25 on every secondary wheel set 2 lay respectively at the both sides of wheel set mount pad 13.One end of leveling cyclinder 25 is hinged on support assembly 1, and the other end of leveling cyclinder 25 is hinged on wheel crossbeam 21.By controlling two leveling cyclinders 25 on every secondary wheel 24, the angle of wheel set mount pad 13 relative wheel crossbeam 21 can be regulated, when wheel 24 for the wheel set of high-altitude operation platform is on uneven ground, wheel crossbeam 21 can tilt to some extent with the fluctuating of landing ground, also adjustment two leveling cyclinders 25 can be passed through, reconditioner seat assembly 1 to level, make the whole wheel set for high-altitude operation platform can carry out operation under comparatively pulsation-free state, improve safety performance, ensure also can construct under the road conditions of complexity.
One end on support assembly 1 arranges two feet assemblies 5, described feet assembly 5 comprises two leg connecting arms, 51, two leg pipe links 52 and two supporting disks 53, two leg connecting arms 51 are arranged on one end of support assembly 1 also in Eight characters shape, one end of leg pipe link 52 is hinged to be arranged on leg connecting arm 51, supporting disk 53 is hinged to be arranged on leg pipe link 52, and hingedly on leg connecting arm 51 being provided with leg oil cylinder 54, piston rod and the leg pipe link 52 of leg oil cylinder 54 are hinged.Described wheel crossbeam 21 comprises the two panels crossbeam steel plate 211 vertically arranged, the U-shaped hinged seat 213 being arranged on the cross-beam connecting plate 212 between two panels crossbeam steel plate 211 and being arranged between two panels crossbeam steel plate 211, wheel crossbeam 21 bearing pin is horizontally disposed with, wherein, U-shaped hinged seat 213 is the integral structure of a monoblock steel plate punched, thus the mount pad rotation slot formed on U-shaped hinged seat 213 for holding wheel mount pad 22, the two sides of U-shaped hinged seat 213 are welded on the inwall of two panels crossbeam steel plate 211 respectively, U-shaped hinged seat 213 offers upper and lower two the first hinge holes, described wheel mount pad 22 comprises the wheel mount pad base plate 221 vertically arranged, oil cylinder connecting strap 222, synchronizing bar connecting strap 223 and two panels rotate installation sheet 224 relative to what distribute up and down, two panels is rotated on installation sheet 224 and is all offered the second hinge hole, one end of oil cylinder connecting strap 222 and one end of synchronizing bar connecting strap 223 are provided with rectangular-shaped welding breach, the face that welding two of breach is mutually right angle is weldingly fixed on respectively on wheel mount pad base plate 221 and is mutually on rectangular base plate front and bottom panel side, oil cylinder connecting strap 222, synchronizing bar connecting strap 223, two panels is rotated the equal relative wheel mount pad base plate 221 of installation sheet 224 and is vertically arranged, wherein, between oil cylinder connecting strap 222 and synchronizing bar connecting strap 223, synchronizing bar connecting strap 223 and wherein a slice are rotated between installation sheet 224, wherein a slice rotation installation sheet 224 and another sheet rotate between installation sheet 224, another sheet rotates installation sheet 224 and is provided with between oil cylinder connecting strap 222 for strengthening that wheel mount pad 22 is integrally-built welds reinforcement 225, thus make oil cylinder connecting strap 222, synchronizing bar connecting strap 223 and wheel mount pad base plate 221 can have larger face of weld, while reducing materials, improve overall intensity, stable operation under making it go for various complex road condition.Oil cylinder connecting strap 222, synchronizing bar connecting strap 223 offers respectively oil cylinder hinge hole and synchronizing bar hinge hole, first hinge hole of top and the second hinge hole of top are by the first pinned connection, first hinge hole of below and the second hinge hole of below are by the second pinned connection, the axis of the first bearing pin, the axis of the second bearing pin coexists on a vertical curve, thus drive wheel assembly integral is rotatably installed in the two ends of wheel crossbeam 21, the upper and lower side of drive wheel assembly is by the first bearing pin, second hinge is in mount pad rotation slot, while drive wheel assembly provides stable being rotationally connected, integral structure is more simple and practical, and better space layout can be realized.
Steering hardware comprises one and turns to Connection Block 26, two to turn to adjustment oil cylinder 27 and a synchronization regulation bar 28, wherein, the two panels pin-joint piece 263 turn to Connection Block 26 to comprise connecting element 261 cylindrically and be arranged on two panels pin-joint piece 262 on the left of connecting element, be arranged on two panels pin-joint piece 263 on the right side of connecting element, being arranged on the two panels pin-joint piece 262 on the left of connecting element, being arranged on the right side of connecting element is provided with the 3rd hinge hole.Two panels pin-joint piece 262 on the left of connecting element is parallel to each other, and the two panels pin-joint piece 263 on the right side of connecting element is parallel to each other.Two panels pin-joint piece 262 on the left of one end of connecting element 261, connecting element, the two panels pin-joint piece 263 on the right side of connecting element are all weldingly fixed on crossbeam steel plate 211.One turns to one end of adjustment oil cylinder 27 to be arranged between the two panels pin-joint piece 262 on the left of connecting element, one is turned to and regulates one end of oil cylinder 27 to be rotatably installed in by the 3rd bearing pin be located on the two panels pin-joint piece 262 on the left of connecting element to turn on Connection Block 26, another root turns to and regulates one end of oil cylinder 27 to be arranged between the two panels pin-joint piece 263 on the right side of connecting element, another root is turned to and regulates one end of oil cylinder 27 to be rotatably installed in by the 3rd bearing pin be located on the two panels pin-joint piece 263 on the right side of connecting element to turn on Connection Block 26, one turns to the other end of adjustment oil cylinder 27 and another root to turn to the other end of adjustment oil cylinder 27 to be hinged on the oil cylinder hinge hole of correspondence position wheel mount pad 22 respectively, the two ends of synchronization regulation bar 28 be hinged on respectively be positioned at wheel crossbeam 21 two ends synchronizing bar hinge hole on.Thus pass through, driving to turn to regulates the wheel mount pad 22 of oil cylinder 27 with motor car wheel crossbeam 21 two ends to rotate, and the synchronism of wheel mount pad 22 rotation process is realized by synchronization regulation bar 28, avoid turning to asynchronous by two drive wheels at the two ends of the wheel crossbeam 21 regulating oil cylinder power inequality to bring, the wheel 24 caused damages, thus improves smoothness and the safety of steering procedure.
Above content described in this specification sheets is only casehistory made for the present invention.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from the content of specification sheets of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (3)
1. the wheel set for high-altitude operation platform, described wheel set comprises wheel crossbeam, steering hardware, levelling gear and is arranged on the drive wheel assembly at wheel crossbeam two ends, it is characterized in that: described drive wheel assembly comprises wheel mount pad, wheel electrical machine and wheel, vehicle wheel rotation is arranged on wheel mount pad, and drives vehicle wheel rotation by the wheel electrical machine on wheel mount pad.Described wheel crossbeam comprises the two panels crossbeam steel plate vertically arranged, the U-shaped hinged seat being arranged on the cross-beam connecting plate between two panels crossbeam steel plate and being arranged between two panels crossbeam steel plate, wheel crossbeam bearing pin is horizontally disposed with, wherein, U-shaped hinged seat is the integral structure of a monoblock steel plate punched, thus the mount pad rotation slot formed on U-shaped hinged seat for holding wheel mount pad, the two sides of U-shaped hinged seat are welded on the inwall of two panels crossbeam steel plate respectively, U-shaped hinged seat offers upper and lower two the first hinge holes, described wheel mount pad comprises the wheel mount pad base plate vertically arranged, oil cylinder connecting strap, synchronizing bar connecting strap and two panels rotate installation sheet relative to what distribute up and down, two panels is rotated on installation sheet and is all offered the second hinge hole, oil cylinder connecting strap, synchronizing bar connecting strap offers respectively oil cylinder hinge hole and synchronizing bar hinge hole, first hinge hole of top and the second hinge hole of top are by the first pinned connection, first hinge hole of below and the second hinge hole of below are by the second pinned connection, the axis of the first bearing pin, the axis of the second bearing pin coexists on a vertical curve.
2. the wheel set for high-altitude operation platform according to claim 1, it is characterized in that: one end of oil cylinder connecting strap and one end of synchronizing bar connecting strap are provided with rectangular-shaped welding breach, the face that welding two of breach is mutually right angle is weldingly fixed on respectively on wheel mount pad base plate and is mutually on rectangular base plate front and bottom panel side, oil cylinder connecting strap, synchronizing bar connecting strap, two panels is rotated installation sheet equal relative wheel mount pad base plate and is vertically arranged, wherein, between oil cylinder connecting strap and synchronizing bar connecting strap, synchronizing bar connecting strap and wherein a slice are rotated between installation sheet, wherein a slice rotation installation sheet and another sheet rotate between installation sheet, another sheet rotates installation sheet and is provided with between oil cylinder connecting strap for strengthening that wheel mount pad is integrally-built welds reinforcement.
3. the wheel set for high-altitude operation platform according to claim 1 and 2, it is characterized in that: steering hardware comprise one turn to Connection Block, two turn to and regulate oil cylinder and a synchronization regulation bar, wherein, the two panels pin-joint piece turn to Connection Block to comprise connecting element cylindrically and be arranged on two panels pin-joint piece on the left of connecting element, be arranged on two panels pin-joint piece on the right side of connecting element, being arranged on the two panels pin-joint piece on the left of connecting element, being arranged on the right side of connecting element is provided with the 3rd hinge hole.Two panels pin-joint piece on the left of connecting element is parallel to each other, and the two panels pin-joint piece on the right side of connecting element is parallel to each other.Two panels pin-joint piece on the left of one end of connecting element, connecting element, the two panels pin-joint piece on the right side of connecting element are all weldingly fixed on crossbeam steel plate.One turns to one end of adjustment oil cylinder to be arranged between the two panels pin-joint piece on the left of connecting element, one is turned to and regulates one end of oil cylinder to be rotatably installed in by the 3rd bearing pin be located on the two panels pin-joint piece on the left of connecting element to turn on Connection Block, another root turns to and regulates one end of oil cylinder to be arranged between the two panels pin-joint piece on the right side of connecting element, another root is turned to and regulates one end of oil cylinder to be rotatably installed in by the 3rd bearing pin be located on the two panels pin-joint piece on the right side of connecting element to turn on Connection Block, one turns to the other end of adjustment oil cylinder and another root to turn to the other end of adjustment oil cylinder to be hinged on the oil cylinder hinge hole of correspondence position wheel mount pad respectively, the two ends of synchronization regulation bar be hinged on respectively be positioned at wheel crossbeam two ends synchronizing bar hinge hole on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836282.9A CN104494417B (en) | 2014-12-28 | 2014-12-28 | Wheel assembly for aerial work platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410836282.9A CN104494417B (en) | 2014-12-28 | 2014-12-28 | Wheel assembly for aerial work platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104494417A true CN104494417A (en) | 2015-04-08 |
| CN104494417B CN104494417B (en) | 2017-04-12 |
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ID=52935906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410836282.9A Active CN104494417B (en) | 2014-12-28 | 2014-12-28 | Wheel assembly for aerial work platform |
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| Country | Link |
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| CN (1) | CN104494417B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064803A (en) * | 2016-08-05 | 2016-11-02 | 湖南星邦重工有限公司 | A kind of relocatable underframe |
| CN106613779A (en) * | 2016-12-27 | 2017-05-10 | 安徽艾瑞德农业装备股份有限公司 | Central pivot type draggable water-saving jet-irrigating machine |
| CN106613778A (en) * | 2016-12-27 | 2017-05-10 | 安徽艾瑞德农业装备股份有限公司 | Draggable water-saving jet-irrigating machine capable of walking by multiple angles |
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| US20120152630A1 (en) * | 2010-07-29 | 2012-06-21 | Chapman/Leonard Studio Equipment, Inc. | Camera crane mobile base |
| CN102596601A (en) * | 2009-09-15 | 2012-07-18 | 埃科莫维有限责任公司 | A transport means and a vehicle |
| US20130306394A1 (en) * | 2007-01-26 | 2013-11-21 | Theodore & Associates Llc | Universal chassis apparatus for automotive vehicle |
| CN204367874U (en) * | 2014-12-28 | 2015-06-03 | 浙江鼎力机械股份有限公司 | For the wheel set of high-altitude operation platform |
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2014
- 2014-12-28 CN CN201410836282.9A patent/CN104494417B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20130306394A1 (en) * | 2007-01-26 | 2013-11-21 | Theodore & Associates Llc | Universal chassis apparatus for automotive vehicle |
| CN102596601A (en) * | 2009-09-15 | 2012-07-18 | 埃科莫维有限责任公司 | A transport means and a vehicle |
| CN201694244U (en) * | 2010-03-29 | 2011-01-05 | 裘宇朝 | Chassis structure of pure electric vehicle |
| US20120152630A1 (en) * | 2010-07-29 | 2012-06-21 | Chapman/Leonard Studio Equipment, Inc. | Camera crane mobile base |
| CN204367874U (en) * | 2014-12-28 | 2015-06-03 | 浙江鼎力机械股份有限公司 | For the wheel set of high-altitude operation platform |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064803A (en) * | 2016-08-05 | 2016-11-02 | 湖南星邦重工有限公司 | A kind of relocatable underframe |
| CN106613779A (en) * | 2016-12-27 | 2017-05-10 | 安徽艾瑞德农业装备股份有限公司 | Central pivot type draggable water-saving jet-irrigating machine |
| CN106613778A (en) * | 2016-12-27 | 2017-05-10 | 安徽艾瑞德农业装备股份有限公司 | Draggable water-saving jet-irrigating machine capable of walking by multiple angles |
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| CN104494417B (en) | 2017-04-12 |
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