CN202298686U - Excavator device working with fulcrum at one end of lever - Google Patents
Excavator device working with fulcrum at one end of lever Download PDFInfo
- Publication number
- CN202298686U CN202298686U CN2011204269659U CN201120426965U CN202298686U CN 202298686 U CN202298686 U CN 202298686U CN 2011204269659 U CN2011204269659 U CN 2011204269659U CN 201120426965 U CN201120426965 U CN 201120426965U CN 202298686 U CN202298686 U CN 202298686U
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- CN
- China
- Prior art keywords
- arm
- small
- forearm
- excavator device
- oil cylinder
- 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.)
- Expired - Fee Related
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Abstract
The utility model provides an excavator device working with a fulcrum at one end of a lever. In the excavator device, the fulcrum is positioned at one end of the lever, and the direction of input force is unchanged, so that the workspace of a small arm is reduced, collision between the forearm and the top of the excavation space is avoided, and the excavator device can effectively adapt to the smaller workspaces, such as railway tunnel excavation, subway tunnel excavation and the like. Besides, the excavator device is time-saving in operation, reduces the labor intensity, saves the energy, improves the quality and lowers the repair and maintenance cost. The excavator device consists of a machine body, a large arm, a small arm, a small-arm protective hood, a small-arm oil cylinder and a small-arm action oil cylinder, wherein the large arm is arranged in front of the machine body; the small arm is arranged at one end of the large arm; the small-arm action oil cylinder is arranged on one side between the middle of the small arm and that of the large arm; the small-arm protective hood is arranged on one side of the small arm; the small-arm oil cylinder is arranged between the small-arm protective hood and the small arm; and the bucket is arranged at the front end of the small arm. The excavator device provided by the utility model has the advantages of simple structure, easiness in production and modification, convenience in use, safety in operation, high working efficiency, time and labor conservation, low cost and convenience in popularization.
Description
Technical field
The utility model relates to excavator, especially a kind of work excavator device of lever end fulcrum.
Background technology
At present; Lever principle is generally adopted in the work of existing excavator forearm; Wherein lever principle is divided three types; First kind fulcrum is between the power and resistance application point, and the distance (power arm) between fulcrum and the dynamic action line is greater than the distance (resistance arm) between fulcrum and the drag effect line, and this type lever is laborsaving lever.Otherwise, then be the effort lever, can increase the operating distance of resistance.Second type of fulcrum is at lever one end, and this type lever is the effort lever, can increase the operating distance of resistance, but not change the direction of input power.The 3rd type of fulcrum is at lever one end, and this type lever is laborsaving lever, but they do not change the direction of active force.
The work of existing excavator forearm generally adopts first kind of fulcrum between the power and resistance application point, and the distance (power arm) between fulcrum and the dynamic action line is less than the distance (resistance arm) between fulcrum and the drag effect line.Therefore the distance between fulcrum and the dynamic action line can make the working space of forearm increase, and is difficult to adapt to for example railway tunnel excavation, less working spaces such as subway tunnel excavation; And during working expenditure, labour intensity increases, and expends the energy.
In view of the foregoing, existing excavator needs to improve.
The utility model content
The purpose of the utility model is in order to overcome deficiency of the prior art; A kind of work excavator device of lever end fulcrum is provided; Make fulcrum at lever one end, do not change the direction of input power, the working space of forearm is reduced; Avoid and excavate the collision of top of space, effectively adapt to less working spaces such as railway tunnel excavation, subway tunnel excavation; And work saves time, and labour intensity reduces, and has practiced thrift the energy.Improve quality, reduced maintenance and maintenance cost.
The utility model adopts following technical scheme to achieve these goals: a kind of lever end is the work excavator of fulcrum, is by body, big arm, and forearm, the forearm protective cover, the forearm oil cylinder, the forearm action tank constitutes; Body the place ahead is provided with big arm, and an end of big arm is provided with forearm; Side between forearm middle part and the big arm middle part is provided with the forearm action tank.
One side of forearm is provided with the forearm protective cover, and the forearm oil cylinder is set between forearm protective cover and the forearm; The forearm front end is provided with scraper bowl.
The technological principle of the utility model is: the utility model is surveyed and drawn the big arm of former car, forearm, each oil cylinder length and stroke on the basis of original model excavator, under situation about as far as possible primary car structure being made full use of, improves.
After the utility model mapping, on the professed machine design software, carry out analogue simulation according to the mapping size through Transform Type design, simulation comprises motion of mechanism scope, the interference situation of each mechanism, stressed strength analysis etc.
The forearm of the utility model adopts the high-strength steel sheet welding during fabrication, guarantees forearm self intensity.
The utility model is installed protective cover above the forearm oil cylinder, the better protection oil cylinder is avoided collision.
The beneficial effect of the utility model is: simple in structure, manufacturing improvement is easy, and is easy to use, handling safety; Improved operating efficiency, saved time, laborsaving; Improve quality, reduced maintenance and maintenance cost; Invest lowly, be convenient to promote.The utility model can better adapt to the excavation demand under the little space engineering environment; Can farthest avoid forearm and the collision of excavating top of space.Therefore, this equipment is applicable to the construction of less working space.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Fig. 1 is the general assembly structural representation of the utility model;
Among Fig. 1: body 1, big arm 2, forearm 3, forearm protective cover 4, forearm oil cylinder 5, forearm action tank 6.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further explain:
As shown in the figure, body 1 the place ahead is provided with big arm 2, and an end of big arm 2 is provided with forearm 3; Side between forearm 3 middle parts and big arm 2 middle parts is provided with forearm action tank 6.
One side of forearm 3 is provided with forearm protective cover 4, between forearm protective cover 4 and the forearm 3 forearm oil cylinder 5 is set; Forearm 3 front ends are provided with scraper bowl.
Claims (2)
1. the work excavator device of a lever end fulcrum is by body (1), big arm (2), and forearm (3), forearm protective cover (4), forearm oil cylinder (5), forearm action tank (6) constitutes; It is characterized in that: body (1) the place ahead is provided with big arm (2), and an end of big arm (2) is provided with forearm (3); Side between forearm (3) middle part and big arm (2) middle part is provided with forearm action tank (6).
2. the work excavator device of a kind of lever end fulcrum according to claim 1 is characterized in that: a side of forearm (3) is provided with forearm protective cover (4), between forearm protective cover (4) and the forearm (3) forearm oil cylinder (5) is set; Forearm (3) front end is provided with scraper bowl.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204269659U CN202298686U (en) | 2011-11-02 | 2011-11-02 | Excavator device working with fulcrum at one end of lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204269659U CN202298686U (en) | 2011-11-02 | 2011-11-02 | Excavator device working with fulcrum at one end of lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202298686U true CN202298686U (en) | 2012-07-04 |
Family
ID=46367615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204269659U Expired - Fee Related CN202298686U (en) | 2011-11-02 | 2011-11-02 | Excavator device working with fulcrum at one end of lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202298686U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989619A (en) * | 2017-12-20 | 2018-05-04 | 佛山科学技术学院 | A kind of telescopic shoveling arm of tunnelling |
| CN112443001A (en) * | 2019-09-02 | 2021-03-05 | 徐州徐工挖掘机械有限公司 | Low space working device and excavator |
-
2011
- 2011-11-02 CN CN2011204269659U patent/CN202298686U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989619A (en) * | 2017-12-20 | 2018-05-04 | 佛山科学技术学院 | A kind of telescopic shoveling arm of tunnelling |
| CN112443001A (en) * | 2019-09-02 | 2021-03-05 | 徐州徐工挖掘机械有限公司 | Low space working device and excavator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120704 Termination date: 20151102 |
|
| EXPY | Termination of patent right or utility model |