CN103255797A - Small excavator - Google Patents
Small excavator Download PDFInfo
- Publication number
- CN103255797A CN103255797A CN2013101733096A CN201310173309A CN103255797A CN 103255797 A CN103255797 A CN 103255797A CN 2013101733096 A CN2013101733096 A CN 2013101733096A CN 201310173309 A CN201310173309 A CN 201310173309A CN 103255797 A CN103255797 A CN 103255797A
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- cabin
- driver
- mounting platform
- cab
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Abstract
The invention relates to a small excavator which aims to overcome the defects that for an existing small excavator with a cab mounted in a hinged mode, turning up of the cab is limited, and consequently the existing small excavator with the cab mounted in the hinged mode is inconvenient to repair. The small excavator is structured and comprises a cab and a mounting platform for mounting the cab, wherein the cab is connected and mounted the mounting platform in the hinged mode, a turning hinged point of the cab is arranged at the rear of the front-and-rear direction of the cab and hinged to the mounting platform at the top of the mounting platform, a lifting device is arranged on the lower portion of the cab and lifts the cab to make the cab rotate around the hinged point. According to the small excavator, the hinged point is located at the rear of the cab and hinged to the top of the mounting platform, the distance from the hinged point to the bottom of the cab is large, when the cab turns by a small angle around the hinged point, the bottom of the cab can be wholly lifted by a large height, and large space is provided for repairing of other parts which are mounted on the mounting platform and located below the cab.
Description
Technical field
The present invention relates to a kind of engineering machinery, relate in particular to a kind of mini-excavator.
Background technology
Engineering machinery especially small type hydraulic excavator need be arranged many parts in the driver's cabin bottom, such as hydraulic control valve, rotary motor and centre of gyration joint often owing to complete machine size, general arrangement.Motor is owing to arrange that enging cabin always has a side and is close to the driver's cabin rear in addition.So for mini-excavator, can be very inconvenient when these parts break down.
Engineering machinery normally is designed to turnover form to driver's cabin in the part of maintenance under-cab at present, is namely undertaken hinged in the bottom of driver's cabin by hinge and erection support.When needs detect part, utilize servicing unit, driver's cabin is dug toward the place ahead, and then keeped in repair.When turning over, driver's cabin can be subjected to the influence of equipment forward, hydraulic system breaks down when equipment is in the posture of lifting, need repairing when being positioned at the main valve of driver's cabin bottom, this moment, driver's cabin can't be dug, even when the time work swing arm that breaks down is in extreme lower position, the angle that driver's cabin is dug can also be restricted, it is limited to dig angle, generally can not surpass 45 °, the space that is exposed to under-cab is also often limited, is not easy to maintenance.
Summary of the invention
The digging restricted of driver's cabin in the mini-excavator that the objective of the invention is to install at existing driver's cabin radial type and cause keeping in repair inconvenient shortcoming and to provide a kind of driver's cabin to dig angle bigger, the mini-excavator that the service clearance that exposes is big.
Technical scheme of the present invention is achieved in that a kind of mini-excavator of structure, the mounting platform, the driver's cabin that comprise driver's cabin, installation driver's cabin are hingedly mounted on the mounting platform, the upset pin joint of driver's cabin is arranged on the rear portion of driver's cabin fore-and-aft direction and hinged at top and the mounting platform of mounting platform, is provided with the lifting device that the jacking driver's cabin makes driver's cabin rotate around interface point in the bottom of driver's cabin.In the present invention, pin joint is positioned at the middle part of driver's cabin, distance apart from the driver's cabin bottom is bigger, driver's cabin is around the less angle of pin joint upset, its bottom can the bigger height of whole lifting, for providing bigger space to the maintenance that is installed on the mounting platform and be positioned at the miscellaneous part of under-cab.
In foregoing invention, be provided with the retaining mechanism of detachable disengagement between the front lower of driver's cabin and the mounting platform, lock bolt nut etc. for example, can unclamp this retaining mechanism at needs during with driver's cab turnover, make the linkwork that driver's cabin can the rear rotate, when not needing to overturn driver's cabin, retaining mechanism locking driver's cabin prevents from that driver's cabin from turning over to cause accident when work.All for example beam, damper equal the mounting platform connection to the linkworks at this retaining mechanism and driver's cabin rear etc. by damping device.
In the present invention, the driver's cabin rear lower caves in forward, make driver's cabin roughly be inverted notch cuttype, this depression constitutes an installing space with the driver's cabin mounting platform, lifting device then is installed in this installing space, this installing space can be opened by the hinged back hood on the driver's cabin mounting platform and open wide, the installing space that lifting device is set by the rear lower at driver's cabin is installed lifting device, this structure can be after the driver's cabin lifting, lifting device does not occupy the space of under-cab, do not influence the maintenance of under-cab components and parts, in addition in the driver's cab turnover equal angular, the shift motion of straight-line displacement device is shorter, also namely plays the purpose of the size that shortens the straight-line displacement device.In foregoing invention, lifting device comprises the straight-line displacement device, and the upper link point of straight-line displacement device is hinged at the place ahead and the driver's cabin of the top of depression, the interface point that overturns, and the lower link point of straight-line displacement device is hinged at bottom and the driver's cabin mounting platform of depression.In the present invention, the straight-line displacement device is hydraulic jack, hydraulic jack through fluid pressure line and hydraulic pump for example hand pump be connected.Be provided with lock-up valve at hydraulic jack, the piston rod of hydraulic jack retraction and cause danger automatically when preventing from the fluid pressure line occurring leaking.The straight-line displacement device forms being rigidly connected of nonelastic buffering between driver's cabin and mounting platform when preventing that machine is in operate as normal, can damping device such as beam or damping spring etc. be installed at the two ends of straight-line displacement device.
In foregoing invention, hand pump is installed in the back hood overlay area at mounting platform rear portion.Back hood and mounting platform are hinged, and articulation pivot is vertical direction, can make things convenient for the back hood to open and operate hand pump like this.In the present invention, the straight-line displacement device also can be for example mechanisms such as air spring, screw mandrel, jack of other similar means.
The beneficial effect that the present invention compared with prior art has: the driver's cabin of engineering machinery of the present invention at the middle part at its rear when driving mounting platform hinged, driver's cabin is dug easily, and can produce bigger service clearance after digging, and makes things convenient for the maintenance of machinery equipment.
Description of drawings
Fig. 1 is the integral installation structural representation of mini-excavator driver's cabin of the present invention;
Fig. 2 is the schematic diagram under another visual angle of integral installation structure of mini-excavator driver's cabin of the present invention;
Fig. 3 is the structural representation of mini-excavator driver's cabin of the present invention when digging.
Component title and sequence number among the figure:
Driver's cabin 1, the hinged upper pin 2 of oil cylinder, anterior damper 3, the hinged lower bearing pin 4 of oil cylinder, hydraulic jack 5, support 6, junction plate 7, hinging pin shaft 8, hydraulic tube 9, hand oil pump 10, back hood 11, rear shock absorbers 12, dividing plate 13, preceding hood 14.
The specific embodiment
Below in conjunction with the description of drawings specific embodiments.
As shown in Figure 1 to Figure 3, the driver's cabin mounting platform comprises hinged preceding hood 14 and back hood 11, wherein the jointed shaft of preceding hood 14 is horizontal direction, hood 14 can upwards be dug around the jointed shaft in the vertical direction of level before making, the jointed shaft of back hood is vertical direction, makes back hood 11 to horizontally rotate around vertical jointed shaft and opens.Driver's cabin 1 rear lower is to cave in forward, and this caves in from bottom to top until the middle part of driver's cabin, make rear cabin be rendered as one inverted stepped.Have a support 6 that protrudes upward to the mounting platform top at the driver's cabin mounting platform, the ladder step place of driver's cabin 1 forms hinge by hinging pin shaft 8 and junction plate 7, and junction plate 7 is fixedlyed connected with support 6 by rear shock absorbers 12 and erection bolt.Be provided with hydraulic jack 5 in the place ahead of support 6, the upper end of hydraulic jack 5 is hinged with driver's cabin 1 by the hinged upper pin 2 of oil cylinder in the place ahead of the top of caving in, hinging pin shaft 8, the lower end of hydraulic jack 5 is positioned at the oblique below of hinged end, and is hinged with support 6 by the hinged lower bearing pin 4 of oil cylinder.At the driver's cabin mounting platform dividing plate 13 is arranged, hand oil pump 10 is fixedly mounted on the dividing plate 13, hydraulic jack is connected with hand pump 10 by hydraulic tube 9, in order to prevent causing hydraulic jack to bounce back automatically because of hydraulic tube 9 explosions or hydraulic circuit leakage, is provided with lock-up valve at hydraulic jack.As shown in Figure 1, fixedly connected with the driver's cabin mounting platform by anterior damper 3 and erection bolt in front portion at driver's cabin, when needs are dug driver's cabin 1, can make driver's cabin to turn over around the hinging pin shaft 8 at rear portion anterior shock absorber fitting bolt dismounting.In the present invention, be positioned at the rear portion of driver's cabin fore-and-aft direction, the middle part on the above-below direction owing to turn over hinging pin shaft behind the driver's cabin, admissible flip angle was bigger when therefore driver's cabin was dug, and after the upset, all dig around hinging pin shaft whole driver's cabin bottom, the space that exposes is big, convenient for maintaining.In the present embodiment, when needing the upset driver's cabin, the shock absorber fitting bolt of driver's cabin front portion is removed, the back hood is opened shaken hand oil pump again, then hydraulic jack makes driver's cabin expose the components and parts that are positioned at under-cab around the hinging pin shaft upset at rear portion driver's cabin jack-up.
In the present invention, hydraulic jack also can be other straight-line displacement device, for example jack, linkage etc.
Claims (9)
1. mini-excavator, mounting platform, the driver's cabin of comprise driver's cabin, driver's cabin being installed are hingedly mounted on the mounting platform, and the upset pin joint that it is characterized in that described driver's cabin is arranged on the rear portion of driver's cabin fore-and-aft direction and hinged at top and the described mounting platform of described mounting platform.
2. mini-excavator according to claim 1 is characterized in that being provided with between the front lower of described driver's cabin and the mounting platform retaining mechanism of detachable disengagement.
3. mini-excavator according to claim 1 and 2 is characterized in that being provided with the jacking driver's cabin in the bottom of driver's cabin makes driver's cabin around the lifting device of interface point rotation.
4. mini-excavator according to claim 3 is characterized in that the rear lower of described driver's cabin caves in forward, and constitutes installing space on this depression and the mounting platform, and described lifting device is installed in this installing space.
5. mini-excavator according to claim 4, it is characterized in that described lifting device comprises the straight-line displacement device, the upper link point of described straight-line displacement device is hinged at the place ahead and the driver's cabin of the top of described depression, the interface point that overturns, and the lower link point of described straight-line displacement device is hinged at bottom and the driver's cabin mounting platform of depression.
6. mini-excavator according to claim 5 is characterized in that described straight-line displacement device is hydraulic jack, and described hydraulic jack is connected with hydraulic pump through fluid pressure line.
7. mini-excavator according to claim 6 is characterized in that described hydraulic jack is provided with lock-up valve.
8. mini-excavator according to claim 6 is characterized in that described hydraulic pump is hand oil pump.
9. mini-excavator according to claim 8 is characterized in that described hand pump is installed in the back hood overlay area at the rear portion of mounting platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310173309.6A CN103255797B (en) | 2013-05-13 | 2013-05-13 | Mini-excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310173309.6A CN103255797B (en) | 2013-05-13 | 2013-05-13 | Mini-excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103255797A true CN103255797A (en) | 2013-08-21 |
| CN103255797B CN103255797B (en) | 2015-09-02 |
Family
ID=48959980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310173309.6A Expired - Fee Related CN103255797B (en) | 2013-05-13 | 2013-05-13 | Mini-excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103255797B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572794A (en) * | 2013-11-25 | 2014-02-12 | 山东冠县鲁牛工程机械有限公司 | Ultra-short tail excavator |
| CN104088323A (en) * | 2014-07-14 | 2014-10-08 | 甘存南 | Combined frame of excavator driver seat |
| CN105271063A (en) * | 2015-08-12 | 2016-01-27 | 林德（中国）叉车有限公司 | Forklift with cab capable of overturning forwards and method for reducing height of container loading of forklift |
| CN105600680A (en) * | 2016-03-29 | 2016-05-25 | 苏州倍特罗智能科技有限公司 | Two-beam crane |
| CN107663873A (en) * | 2017-10-16 | 2018-02-06 | 江苏柳工机械有限公司 | A kind of loader cab |
| CN109455269A (en) * | 2018-10-12 | 2019-03-12 | 上海外高桥造船有限公司 | A kind of ship-handling console empties method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040194488A1 (en) * | 2003-04-04 | 2004-10-07 | Komatsu Ltd. | Air conditioning apparatus for hydraulic shovel |
| CN201865141U (en) * | 2010-11-25 | 2011-06-15 | 中外合资沃得重工（中国）有限公司 | Turnover type cab of hydraulic excavator |
| CN201943099U (en) * | 2010-08-25 | 2011-08-24 | 徐州万邦重型机械科技有限公司 | Cylinder elevating mechanism for grader engine hood |
| CN102561430A (en) * | 2010-12-08 | 2012-07-11 | 天津建筑机械厂 | Overturning cab of bulldozer |
| CN202577403U (en) * | 2012-04-06 | 2012-12-05 | 山推工程机械股份有限公司 | Turnover cab of bulldozer |
-
2013
- 2013-05-13 CN CN201310173309.6A patent/CN103255797B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040194488A1 (en) * | 2003-04-04 | 2004-10-07 | Komatsu Ltd. | Air conditioning apparatus for hydraulic shovel |
| CN201943099U (en) * | 2010-08-25 | 2011-08-24 | 徐州万邦重型机械科技有限公司 | Cylinder elevating mechanism for grader engine hood |
| CN201865141U (en) * | 2010-11-25 | 2011-06-15 | 中外合资沃得重工（中国）有限公司 | Turnover type cab of hydraulic excavator |
| CN102561430A (en) * | 2010-12-08 | 2012-07-11 | 天津建筑机械厂 | Overturning cab of bulldozer |
| CN202577403U (en) * | 2012-04-06 | 2012-12-05 | 山推工程机械股份有限公司 | Turnover cab of bulldozer |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103572794A (en) * | 2013-11-25 | 2014-02-12 | 山东冠县鲁牛工程机械有限公司 | Ultra-short tail excavator |
| CN104088323A (en) * | 2014-07-14 | 2014-10-08 | 甘存南 | Combined frame of excavator driver seat |
| CN105271063A (en) * | 2015-08-12 | 2016-01-27 | 林德（中国）叉车有限公司 | Forklift with cab capable of overturning forwards and method for reducing height of container loading of forklift |
| CN105600680A (en) * | 2016-03-29 | 2016-05-25 | 苏州倍特罗智能科技有限公司 | Two-beam crane |
| CN107663873A (en) * | 2017-10-16 | 2018-02-06 | 江苏柳工机械有限公司 | A kind of loader cab |
| CN109455269A (en) * | 2018-10-12 | 2019-03-12 | 上海外高桥造船有限公司 | A kind of ship-handling console empties method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103255797B (en) | 2015-09-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Pull the the Liujiang River city Liuzhou County town Shuangyong road 545100 the Guangxi Zhuang Autonomous Region Applicant after: Liuzhou Liugong Excavators Co.,Ltd. Applicant after: LIUGONG CHANGZHOU MACHINERY Co.,Ltd. Applicant after: GUANGXI LIUGONG MACHINERY Co.,Ltd. Address before: Pull the the Liujiang River city Liuzhou County town Shuangyong road 545100 the Guangxi Zhuang Autonomous Region Applicant before: Liuzhou Liugong Excavators Co.,Ltd. Applicant before: LIUGONG CHANGZHOU EXCVAVTOR Co.,Ltd. Applicant before: GUANGXI LIUGONG MACHINERY Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 |