CN201068578Y - Hydraulic excavator deflection assistant locking apparatus - Google Patents
Hydraulic excavator deflection assistant locking apparatus Download PDFInfo
- Publication number
- CN201068578Y CN201068578Y CNU2007201258995U CN200720125899U CN201068578Y CN 201068578 Y CN201068578 Y CN 201068578Y CN U2007201258995 U CNU2007201258995 U CN U2007201258995U CN 200720125899 U CN200720125899 U CN 200720125899U CN 201068578 Y CN201068578 Y CN 201068578Y
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- CN
- China
- Prior art keywords
- turntable
- locking
- bearing pin
- steering head
- deflection
- 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 a hydraulic assistant digger deflection locking device, which is characterized in that through holes are drilled on the corresponding positions of a turning head and a turntable, a perforated stanchion is welded on the turning head, the edge of the part of a locking pin matching the turntable are cut, and a anti-turn board is welded on the locking pin. The locking pine is inserted into the corresponding through holes of the turning head and the turntable, the anti-turn board is sleeved in the perforated stanchion, and a springy pin is inserted in the perforated stanchion. The double locking method that adding mechanical assistant locking device on the base of the hydraulic locking can limit the turning head to deflect relatively to the turntable reliably, and can also facilitate assembly and disassembly.
Description
Technical field
The utility model relates to a kind of hydraulic crawler excavator steering head deflection locking device, when the user desires to make not deflection of steering head, adds mechanical locking by hydraulic locking, limits steering head reliably and rotates relative to turntable.
Background technology
At present, the band steering head hydraulic crawler excavator of producing is now mostly both at home and abroad is the deflection of single employing hydraulic lock locking steering head, be after the driver aligns steering head, by the control hydraulic lock, seal deflection oil cylinder oil-feed path and way to cycle oil, thereby the piston rod of restriction deflection oil cylinder is flexible, to reach the function of the relative turntable deflection of restriction steering head.Because leakage problem in oil cylinder more or less exists inevitably, promptly in the turntable turning course, because the active force that equipment inertia force is produced puts on oil cylinder, drain to the other end in the oil cylinder one end hydraulic oil, after work a period of time, front end steering head turntable commentaries on classics relatively has certain corner, and operator need work on behind the levelling corner of intermittence again, makes troubles to production operation.
Summary of the invention
The purpose of this utility model is to provide a kind of and solves single being hydraulically locked in and use the deficiency that produces deflection angle behind the certain hour, the double locking mode that adds the mechanical assistance locking device on the basis of hydraulic locking can limit steering head reliably and rotate relative to turntable.Under the prerequisite of hydraulic locking, relative deflection bearing pin rear same position is opened the hole on steering head and turntable; On steering head, weld a column with holes again; On the locking bearing pin, weld torsional stop, open the hole on the torsional stop and be a bit larger tham column diameter with holes; The locking bearing pin inserts the through hole of steering head and turntable, and the through hole on the locking bearing pin is inserted in column with holes, resilient key is inserted the through hole of column with holes again, and restriction locking bearing pin is up run out of.The stop pin shaft diameter is by the space of steering head and turntable and deflection is stressed edits; Consider the error of the two through hole separate machined existence of steering head and turntable, locking bearing pin and deflection bearing pin are crossed the location again in diaxon line direction, being prone to pack into locks the situation of bearing pin, to lock bearing pin lower end and turntable mating part at diaxon line direction chamfered edge, and determine that by torsional stop on the locking bearing pin and the column with holes on the steering head orientation of locking bearing pin is accurate; Be convenient mounting or dismounting and assurance locking effect, the locking bearing pin is chosen suitable matched in clearance with cooperating of steering head and turntable through hole.Under turntable revolution operating mode, because the restriction of locking bearing pin, steering head can't deflection with respect to turntable.
Technical solution of the present utility model is such, hydraulic crawler excavator deflection secondary locking device, comprise turntable, resilient key, column with holes, torsional stop, the locking bearing pin, steering head, feature is: steering head and turntable opposite position are opened the hole, welding hole column on the steering head, the locking bearing pin on turntable matching part chamfered edge, and on the locking bearing pin, weld torsional stop, the locking bearing pin inserts steering head and the corresponding through hole of turntable, torsional stop is inserted in column with holes, and resilient key inserts the pin-and-hole of column with holes, is torsional stop under the resilient key, being steering head under the torsional stop, is turntable under the steering head.
Locking bearing pin lower end and turntable mating part are at diaxon line direction chamfered edge.
The through hole of locking bearing pin and steering head and turntable has fit clearance.
The utility model has the advantages that the mechanical assistance locking device makes full use of the existing structure of steering head and turntable, need not to increase the restriction steering head deflection that multiple component can be convenient and reliable; Steering head and turntable separate machined, technology is easy, cost is low, has made full use of the usefull space of structural member; In addition, the dimension chain of mechanical assistance locking device is all finished by machine, and precision is guaranteed, and the user can optionally install and remove easily, and is convenient and reliable.Have advantages such as simple in structure, reasonable in design, easy to install, safe and reliable.
Description of drawings
It is such that structure of the present utility model constitutes:
Fig. 1 is a mechanical assistance locking device vertical view of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1 of the present utility model.
Fig. 3 is the B-B sectional view of Fig. 1 of the present utility model.
Among Fig. 1～Fig. 3: turntable (1), resilient key (2), column with holes (3), torsional stop (4), deflection oil cylinder (5), locking bearing pin (6), deflection bearing pin (7), steering head (8), equipment (9).
The specific embodiment
Most preferred embodiment of the present utility model is such: with reference to Fig. 1～Fig. 3, open the hole in deflection bearing pin (7) appropriate location, rear relatively at steering head (8), weld a column with holes (3) again on steering head (8) again, the torsional stop (4) that is welded on the locking bearing pin (6) is depended in its position; Open onesize through hole at the corresponding steering head of turntable (1) (8) lead to the hole site, increase thickness of slab in relevant position is in contact with it area to improve locking bearing pin (6) around the hole, prevent to lock the stressed back of bearing pin (6) and produce big beat, improve the structural strength of turntable (1) simultaneously; Go up welding torsional stop (4) at locking bearing pin (6), open the hole on the torsional stop (4) and be a bit larger tham column with holes (3) diameter, when locking bearing pin (6) inserts the through hole of steering head (8) and turntable (1), through hole on the locking bearing pin (6) also is inserted in column with holes (3), again resilient key (2) is inserted the through hole of column with holes (3), restriction locking bearing pin (6) is up run out of; Locking bearing pin (6) diameter is by the space of steering head (8) and turntable (1) and deflection is stressed edits, because there is error in the two through hole separate machined of steering head (8) and turntable (1), locking bearing pin (6) is crossed the location with deflection bearing pin (7) again in diaxon line direction, be prone to can't pack into the situation of turntable (1) of locking bearing pin (6), need locking bearing pin (6) lower end and turntable (1) mating part at diaxon line direction chamfered edge, and accurate by the definite orientation that locks bearing pin (6) of torsional stop (4) and column with holes (3); Be convenient mounting or dismounting and assurance locking effect, lock bearing pin (6) and steering head (8) and cooperating of turntable (1) through hole need choose suitable matched in clearance.Under turntable (1) revolution operating mode, even if the inertia force that equipment (9) is produced causes deflection oil cylinder (5) to produce interior the leakage, because the restriction of locking bearing pin (6), steering head (8) still can not produce deflection angle with respect to turntable (1); When the user needs deflection, only need extract locking bearing pin (6) and get final product.
Claims (3)
1. hydraulic crawler excavator deflection secondary locking device, comprise turntable, resilient key, column with holes, torsional stop, the locking bearing pin, steering head, it is characterized in that: steering head (8) and turntable (1) opposite position are opened the hole, steering head (8) is gone up welding hole column (3), locking bearing pin (6) is gone up and turntable (1) matching part chamfered edge, and locking upward weldering torsional stop (4) of bearing pin (6), locking bearing pin (6) inserts the corresponding through hole of steering head (8) and turntable (1), torsional stop (4) is inserted in column with holes (3), resilient key (2) inserts the pin-and-hole of column with holes (3), under the resilient key (2) torsional stop (4), being steering head (8) under the torsional stop (4), is turntable (1) under the steering head (8).
2. according to the described a kind of hydraulic crawler excavator deflection secondary locking device of claim 1, it is characterized in that: locking bearing pin (6) lower end and turntable (1) mating part are at diaxon line direction chamfered edge.
3. according to the described a kind of hydraulic crawler excavator deflection secondary locking device of claim 1, it is characterized in that: locking bearing pin (6) has fit clearance with the through hole of steering head (8) and turntable (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201258995U CN201068578Y (en) | 2007-07-13 | 2007-07-13 | Hydraulic excavator deflection assistant locking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201258995U CN201068578Y (en) | 2007-07-13 | 2007-07-13 | Hydraulic excavator deflection assistant locking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201068578Y true CN201068578Y (en) | 2008-06-04 |
Family
ID=39489956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201258995U Expired - Fee Related CN201068578Y (en) | 2007-07-13 | 2007-07-13 | Hydraulic excavator deflection assistant locking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201068578Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597912B (en) * | 2008-06-04 | 2012-01-11 | 神钢建设机械株式会社 | Working machine with structure for assembling boom |
-
2007
- 2007-07-13 CN CNU2007201258995U patent/CN201068578Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597912B (en) * | 2008-06-04 | 2012-01-11 | 神钢建设机械株式会社 | Working machine with structure for assembling boom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGXI YUCHAI HEAVY INDUSTRY CO., LTD. Free format text: FORMER NAME: GUANGXI YULIN YUCHAI ENGINEERING MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 537005 flyover Road, the Guangxi Zhuang Autonomous Region, Yulin No. 168 Patentee after: Guangxi Yuchai Heavy Industry Co., Ltd. Address before: 537005 flyover Road, the Guangxi Zhuang Autonomous Region, Yulin No. 168 Patentee before: Guangxi Yulin Yuchai Engineering Machinery Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080604 Termination date: 20130713 |