CN102518391A - Stairway for mine hydraulic excavator - Google Patents
Stairway for mine hydraulic excavator Download PDFInfo
- Publication number
- CN102518391A CN102518391A CN2011104541385A CN201110454138A CN102518391A CN 102518391 A CN102518391 A CN 102518391A CN 2011104541385 A CN2011104541385 A CN 2011104541385A CN 201110454138 A CN201110454138 A CN 201110454138A CN 102518391 A CN102518391 A CN 102518391A
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- Prior art keywords
- support
- locking
- stairway
- airstair
- ladder
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Abstract
A stairway for a mine hydraulic excavator relates to mine hydraulic excavators and solves the problem that the existing stairway unreasonable in structure is easy to fail to cause excavator stoppage. The stairway for the mine hydraulic excavator is characterized in that a staircase, a support, an upper connecting bar and a lower connecting bar form a four-link mechanism, namely, one end of the upper connecting bar and one end of the lower connecting bar are respectively hinged to the support, the other end of the upper connecting bar and other end of the lower connecting bar are respectively hinged to the staircase, and the support is connected with a walking board; the support and the connecting bars are hinged to an oil cylinder; a locking rack is connected with an awning and the walking board and connected with a locking hook; a handle is further connected to a connecting shaft for the locking rack and the locking hook and connected with a spring device; the spring device is fixed to the awning, the upper portion of the staircase is connected with a locking plate, and the awning is connected with a retaining plate. The stairway for the mine hydraulic excavator has the advantages of reasonable structure, and comfortableness, safety and reliability in use.
Description
Technical field
The present invention relates to hydraulic excavator for mine, particularly a kind of airstair of hydraulic excavator for mine.
Background technology
Airstair is the necessary component part of excavator; The structure of airstair has directly had influence on stability, the comfortableness of airstair and the personnel's that board personal safety; And the quality of the performance of airstair has directly had influence on the service behaviour of excavator complete machine; If airstair breaks down, then must shut down, this situation must cause bigger economic loss to the mine.The airstair poor performance of present most of excavators is prone to break down.
Summary of the invention
The object of the invention is intended to overcome the shortcoming of prior art, and a kind of airstair of hydraulic excavator for mine is provided, and thoroughly solves existing airstair because of unreasonable structure, is prone to break down and causes the problem of shutdown.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
A kind of airstair of hydraulic excavator for mine; It is characterized in that: said airstair is by ladder; Last connecting rod, lower link, support, oil cylinder, locking frame, locking bail, handle, spring assembly, latch and baffle plate are formed, and said ladder, go up connecting rod, lower link, be configured to quadric chain, that is: a said end of going up connecting rod, lower link is hinged with said support respectively; The said other end of going up connecting rod, lower link is hinged with said ladder respectively, and said support is connected with walking on stage; Said support and last connecting rod and said oil cylinder are hinged; Said locking frame is connected and is connected with said locking bail with walking on stage with canopy; Also be connected said handle on said locking frame and the locking bail connecting axle, said handle is connected with said spring assembly; Said spring assembly is fixed on the said canopy, and the top of said ladder is connected with said latch, and said canopy is connected with said baffle plate.
The present invention compared with prior art has the following advantages and beneficial effect:
Because the special connected mode of two connecting rods, support, ladder among the present invention; Make and formed four-bar linkage structure between these four members; That guarantees to move is steadily reliable, has strengthened integrally-built rigidity, has increased safety and comfortableness when the staff boards.Retaining mechanism can be effectively reliably with ladder locking, to guarantee the normal operation of excavator, reduced the economic loss that the shutdown because of excavator causes.The present invention has rational in infrastructure, uses comfortable, safe and reliable advantage.
Description of drawings
Fig. 1 is the structural representation that airstair goes downwards to extreme position;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the structural representation of airstair locking state;
Fig. 4 is ladder, the partial structurtes detail drawing of going up connecting rod, lower link, support and oil cylinder;
Fig. 5 is the partial structurtes detail drawing of locking frame, locking bail, handle and spring assembly;
When Fig. 6 is the airstair locking state, locking position detail drawing.
The present invention is elaborated through preferred embodiment below in conjunction with accompanying drawing.
The specific embodiment
Like Fig. 1,2,3,4,5, shown in 6; A kind of airstair of hydraulic excavator for mine; By ladder 1; Last connecting rod 2, lower link 3, support 4, oil cylinder 5, locking frame 6, locking bail 7, handle 8, spring assembly 9, latch 10 and baffle plate 11 are formed, and said ladder 1, go up connecting rod 2, lower link 3, support 4 and constitute quadric chains, that is: a said end of going up connecting rod 2, lower link 3 is hinged with said support 4 respectively; The said other end of going up connecting rod 2, lower link 3 is hinged with said ladder 1 respectively, and said support 4 13 is connected with walking on stage; Said support 4 is hinged with last connecting rod 2 and said oil cylinder 5; Said locking frame 6 and canopy 12 13 are connected and are connected with said locking bail 7 with walking on stage; Also be connected said handle 8 on said locking frame 6 and locking bail 7 connecting axles, said handle 8 is connected with said spring assembly 9; Said spring assembly 9 is fixed on the said canopy 12, and the top of said ladder 1 is connected with said latch 10, and said canopy 12 is connected with said baffle plate 11.
According to the actual conditions of concrete excavator, confirm the parameter of the link position of support 4, the length that goes up connecting rod 2 and lower link 3 and articulated position, ladder 1, the position of locking frame 6 etc.
The present invention utilizes connecting rod 2 to link to each other with ladder 1 with lower link 3, and more traditional airstair operates steadily reliably, and has increased the integral rigidity of mechanism, has reduced rocking of ladder when boarding to a great extent, has increased safety and comfortableness when the staff boards.Locking device is easy to operate, and can effective and safe ground be locked by airstair, and the position of airstair is as shown in Figure 3 during with the operation of assurance excavator.
The course of work of the present invention:
When need were boarded, like Fig. 1, position shown in 2, locking bail 7 was under the effect of its gravity and spring assembly 9, and the bottom of locking bail 7 contacts with baffle plate 11, and 11 pairs of locking bails of baffle plate 7 carry out spacing, have guaranteed that locking bail 7 is in level.After the action of boarding is accomplished; When airstair need rise, oil cylinder 5 stretched out action, the quadric chain setting in motion that support 4, last connecting rod 2, lower link 3 and ladder 1 form; Simultaneously oil cylinder 5 is around its pin joint rotation with support 4; When ladder 1 moves to when contacting with locking bail 7, locking bail rotates under to its pressure at latch 10, when the lower end of locking bail gets into the hole of latch 10; Locking bail airstair is locked under the effect of spring assembly 9, the state during locking is as shown in Figure 3.When need are descending with airstair, at first spur handle 7, lift spring assembly 9 so that the lower end of locking bail 7 breaks away from the hole of latch 10, so far remove locking, airstair is stablized descending under the effect of gravity and oil cylinder 5, until going downwards to position as shown in Figure 1.
Claims (1)
1. the airstair of a hydraulic excavator for mine; It is characterized in that: said airstair is by ladder (1); Last connecting rod (2), lower link (3), support (4), oil cylinder (5), locking frame (6), locking bail (7), handle (8), spring assembly (9), latch (10) and baffle plate (11) are formed; Said ladder (1), last connecting rod (2), lower link (3), support (4) constitute quadric chain; That is: an end of said upward connecting rod (2), lower link (3) is hinged with said support (4) respectively, and the other end of said upward connecting rod (2), lower link (3) is hinged with said ladder (1) respectively, and said support (4) is connected with walk on stage (13); Said support (4) and last connecting rod (2) are hinged with said oil cylinder (5); Said locking frame (6) is connected with walk on stage (13) with canopy (12) and is connected with said locking bail (7); Also be connected said handle (8) on said locking frame (6) and locking bail (7) connecting axle, said handle (8) is connected with said spring assembly (9); Said spring assembly (9) is fixed on the said canopy (12), and the top of said ladder (1) is connected with said latch (10), and said canopy (12) is connected with said baffle plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104541385A CN102518391A (en) | 2011-12-22 | 2011-12-22 | Stairway for mine hydraulic excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104541385A CN102518391A (en) | 2011-12-22 | 2011-12-22 | Stairway for mine hydraulic excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102518391A true CN102518391A (en) | 2012-06-27 |
Family
ID=46289429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104541385A Pending CN102518391A (en) | 2011-12-22 | 2011-12-22 | Stairway for mine hydraulic excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102518391A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787800A (en) * | 2012-08-06 | 2012-11-21 | 东营蒙德金马机车有限公司 | Special ladder stand for mobile machinery shop |
| CN104110212A (en) * | 2014-07-10 | 2014-10-22 | 太原重工股份有限公司 | Ladder for getting on/off mechanical equipment and mechanical equipment provided with ladder |
| CN104196439A (en) * | 2014-07-10 | 2014-12-10 | 太原重工股份有限公司 | Airstairs locking device and airstairs |
| CN108193734A (en) * | 2018-02-23 | 2018-06-22 | 徐州徐工挖掘机械有限公司 | Large excavator access step system |
| CN109138824A (en) * | 2018-09-29 | 2019-01-04 | 连云港天邦科技开发有限公司 | Rotary and telescopic autostairs |
| CN110382783A (en) * | 2017-07-11 | 2019-10-25 | 日立建机株式会社 | The lifting device of engineering machinery |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172806Y (en) * | 1993-07-21 | 1994-07-27 | 郑克霖 | Multi-purpose ladder |
| CN101497326A (en) * | 2009-01-14 | 2009-08-05 | 江苏捷诚车载电子信息工程有限公司 | Simple stepping ladder |
-
2011
- 2011-12-22 CN CN2011104541385A patent/CN102518391A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172806Y (en) * | 1993-07-21 | 1994-07-27 | 郑克霖 | Multi-purpose ladder |
| CN101497326A (en) * | 2009-01-14 | 2009-08-05 | 江苏捷诚车载电子信息工程有限公司 | Simple stepping ladder |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787800A (en) * | 2012-08-06 | 2012-11-21 | 东营蒙德金马机车有限公司 | Special ladder stand for mobile machinery shop |
| CN104110212A (en) * | 2014-07-10 | 2014-10-22 | 太原重工股份有限公司 | Ladder for getting on/off mechanical equipment and mechanical equipment provided with ladder |
| CN104196439A (en) * | 2014-07-10 | 2014-12-10 | 太原重工股份有限公司 | Airstairs locking device and airstairs |
| CN104196439B (en) * | 2014-07-10 | 2016-04-06 | 太原重工股份有限公司 | The locking device of airstair and airstair |
| CN110382783A (en) * | 2017-07-11 | 2019-10-25 | 日立建机株式会社 | The lifting device of engineering machinery |
| CN110382783B (en) * | 2017-07-11 | 2021-09-24 | 日立建机株式会社 | Lifting device for engineering machinery |
| US11414831B2 (en) | 2017-07-11 | 2022-08-16 | Hitachi Construction Machinery Co., Ltd. | Lifting and lowering device for construction machine |
| CN108193734A (en) * | 2018-02-23 | 2018-06-22 | 徐州徐工挖掘机械有限公司 | Large excavator access step system |
| CN108193734B (en) * | 2018-02-23 | 2023-04-28 | 徐州徐工挖掘机械有限公司 | Boarding ladder system of large excavator |
| CN109138824A (en) * | 2018-09-29 | 2019-01-04 | 连云港天邦科技开发有限公司 | Rotary and telescopic autostairs |
| CN109138824B (en) * | 2018-09-29 | 2023-05-26 | 连云港天邦科技开发有限公司 | Rotary telescopic movable ladder |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120627 |