CN203096785U - Unlimited working arm of loader-digger - Google Patents
Unlimited working arm of loader-digger Download PDFInfo
- Publication number
- CN203096785U CN203096785U CN 201320021217 CN201320021217U CN203096785U CN 203096785 U CN203096785 U CN 203096785U CN 201320021217 CN201320021217 CN 201320021217 CN 201320021217 U CN201320021217 U CN 201320021217U CN 203096785 U CN203096785 U CN 203096785U
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- CN
- China
- Prior art keywords
- oil cylinder
- arm
- cylinder
- loader
- forearm
- 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 discloses an unlimited working arm of a loader-digger. The unlimited working arm of the loader-digger comprises a small arm (4) and a large arm (5). The front end of the small arm is provided with an excavator bucket (1). An excavator bucket oil cylinder (3) is arranged above the small arm. The excavator bucket oil cylinder is connected with the excavator bucket through a connecting rod (2). A small arm oil cylinder (6) and a large arm oil cylinder (7) are respectively arranged above the large arm and below the large arm. A portal frame (9) is arranged behind the large arm. An angling cylinder (8) is arranged on the portal frame. Buffering devices (10) are respectively arranged on the small arm oil cylinder and the large arm oil cylinder and at two ends of the angling cylinder. Because buffering devices are arranged at two ends of the oil cylinder, when a travel stretches to a limit of the travel, oil consumption is reduced through the buffering devices so as to achieve stretching and decelerating, and accordingly the cylinder flexibly controls a working mechanism to operate, working flexibility is achieved, a machine is protected, and the problems that tough parts confront with each other, the machine is compulsorily stopped by external force, the piston rod of the oil cylinder is easily damaged, structural working members easily deform due to long-period mechanical limiting, and energy is wasted are avoided.
Description
Technical field
The utility model relates to the loader-digger working arm, the not spacing working arm of especially a kind of loader-digger.
Background technology
Loader-digger is a kind of quantity-produced high efficiency ore removal equipment, be mainly used in the loading operation in railway tunnel construction, road driving, diversion tunnel and the construction of national defence hole, the flexible reciprocating motion of main big arm with operating mechanism, forearm, bucket, angling cylinder comes realization equipment to load driving.Yet, operating mechanism's position limiting structure formula mechanical forced is spacing in the prior art, limiting plate is welded on the big arm, when the forearm oil cylinder reached extreme position, forearm is connected bearing pin with big arm with forearm be till limiting plate is run in center rotation, be that outer power forces to stop purely, operating mechanism this type of reciprocating motion can occur during operation always, in the course of time, and the structural member easy deformation of operating mechanism, the oil cylinder piston bar is fragile, big arm and forearm connecting hole are yielding, and serious cause forearm and big arm connecting hole are torn the connecting pin axle fracture, oil cylinder ear seat is torn, and then influence the excavation work progress, and increased the engineering excavation cost, cause security incident very easily easily.
The utility model content
At excavating the problem that the elevating conveyor working arm exists in the above-mentioned prior art, the utility model provides a kind of loader application life of prolonging, the not spacing working arm of the loader-digger of increasing work efficiency.
The technical scheme that the technical problems to be solved in the utility model is taked is: the not spacing working arm of described loader-digger comprises forearm and big arm 5, described forearm the place ahead is provided with bucket; the forearm top is provided with bucket cylinder; described bucket cylinder is connected with bucket by connecting rod; described big arm upper and lower is respectively arranged with forearm oil cylinder and big arm oil cylinder; big arm rear is provided with portal frame; described portal frame is provided with angling cylinder, and forearm oil cylinder, big arm oil cylinder and angling cylinder two ends are respectively arranged with buffer.
The utility model is owing to be provided with the special forearm of double headed roller buffer; big arm and angling cylinder; utilize the forearm oil cylinder stroke to control flexible spacing forearm; two mechanical forced stopping means have been cancelled; and be provided with the special angling cylinder of double headed roller buffer; utilize about angling cylinder stroke Flexible Control operating mechanism and the both sides swing; cancelled mechanical position limitation buffer on the portal frame; because oil cylinder two ends design buffer; make when stroke is flexible to arrive extreme limit of travel, utilize buffer to use oil mass to reduce and realize flexible deceleration, thereby control operating mechanism's action flexibly; reach the work flexibility; the protection machine has avoided very stiff and demanding, and outer power forces to stop; fragile oil cylinder piston bar; long-term mechanical position limitation, the work structuring part is yielding, the problem that wastes energy.
Description of drawings
Fig. 1 is the utility model master TV structure schematic diagram,
Fig. 2 is the utility model plan structure schematic diagram.
The specific embodiment
In Fig. 1 and Fig. 2, the not spacing working arm of described loader-digger comprises forearm 4 and big arm 5, described forearm the place ahead is provided with a bucket 1, bucket tooth is housed on the bucket, the wearing and tearing back is replaceable; the forearm top is provided with bucket cylinder 3; the flexible bucket that can make of control bucket cylinder does to excavate action; be provided with connecting rod 2 between described bucket cylinder and the bucket; respectively be provided with a forearm oil cylinder 6 and big arm oil cylinder 7 at big arm upper and lower; two is provided with buffer 10 in described forearm oil cylinder and the big arm oil cylinder; by control forearm oil cylinder forearm is done and be seesawed; by controlling big arm oil cylinder big arm is moved up and down, in Fig. 2, big arm rear is provided with a portal frame 9; described portal frame has been cancelled mechanical position limitation buffer stopper device; described portal frame top is provided with angling cylinder 8, and two also is provided with buffer 10 in the described angling cylinder, need not to control big arm left rotation and right rotation speed by the one-way throttle valve at control angling cylinder two ends.All adopt bearing pin to connect in the not spacing working arm of described loader-digger between each work structuring part, described buffer comprises guide rod, spring and overcoat.
Claims (1)
1. not spacing working arm of loader-digger, it comprises forearm (4) and big arm (5), described forearm front end is provided with bucket (1); the forearm top is provided with bucket cylinder (3); described bucket cylinder is connected with bucket by connecting rod (2); described big arm upper and lower is respectively arranged with forearm oil cylinder (6) and big arm oil cylinder (7); big arm rear is provided with portal frame (9); described portal frame is provided with angling cylinder (8), it is characterized in that: described forearm oil cylinder, big arm oil cylinder and angling cylinder two ends are respectively arranged with buffer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320021217 CN203096785U (en) | 2013-01-16 | 2013-01-16 | Unlimited working arm of loader-digger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320021217 CN203096785U (en) | 2013-01-16 | 2013-01-16 | Unlimited working arm of loader-digger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096785U true CN203096785U (en) | 2013-07-31 |
Family
ID=48848202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320021217 Expired - Fee Related CN203096785U (en) | 2013-01-16 | 2013-01-16 | Unlimited working arm of loader-digger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203096785U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437797A (en) * | 2013-08-30 | 2013-12-11 | 河南理工大学 | Combined type hydraulic support provided with notch excavation device |
| CN109469128A (en) * | 2018-11-26 | 2019-03-15 | 马鞍山金顺来工业设计有限公司 | A kind of excavator reducing oil cylinder impact |
-
2013
- 2013-01-16 CN CN 201320021217 patent/CN203096785U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103437797A (en) * | 2013-08-30 | 2013-12-11 | 河南理工大学 | Combined type hydraulic support provided with notch excavation device |
| CN103437797B (en) * | 2013-08-30 | 2016-03-02 | 河南理工大学 | With the Combined hydraulic support stand of otch backactor |
| CN109469128A (en) * | 2018-11-26 | 2019-03-15 | 马鞍山金顺来工业设计有限公司 | A kind of excavator reducing oil cylinder impact |
| CN109469128B (en) * | 2018-11-26 | 2020-12-18 | 马鞍山建腾新型建材有限公司 | Excavator capable of reducing impact of oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20140116 |