CN204080893U - Hydraulic grab bucket head opening and closing rotational structure - Google Patents
Hydraulic grab bucket head opening and closing rotational structure Download PDFInfo
- Publication number
- CN204080893U CN204080893U CN201420364825.7U CN201420364825U CN204080893U CN 204080893 U CN204080893 U CN 204080893U CN 201420364825 U CN201420364825 U CN 201420364825U CN 204080893 U CN204080893 U CN 204080893U
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- China
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- axle sleeve
- bearing pin
- bucket
- lubricating cup
- sealed groove
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Abstract
A kind of bucket head opening and closing rotational structure of the opening and closing of hydraulic grab bucket head rotational structure, particularly a kind of engineering machinery.This structure comprises: bucket head, bucket seat, bearing pin, the first axle sleeve, the second axle sleeve, O RunddichtringO, lubricating cup, protective cap, pad and baffle plate; In described structure, bearing pin is connected with bucket seat by the first axle sleeve, is connected with bucket head by the second axle sleeve; First sleeve lining has bar sealed groove near an endface position, and the second sleeve lining respectively has bar sealed groove near both ends of the surface position, mounting O-shaped sealing ring in sealed groove; Bearing pin both ends of the surface center has each one of the hydraulic fluid port of band counter sink, and the lubricating cup be arranged on hydraulic fluid port is positioned at counter sink; Counter sink has screw thread, is screwed into protective cap, lubricating cup can be protected to avoid when the work of grab bucket impaired.Structure is simple, reliable and practical, when the head opening and closing rotational structure of struggling against is substantially constant, realizes keeping between bearing pin and axle sleeve lubrication, isolated foreign matter, life-extending.
Description
Technical field
The utility model relates to a kind of bucket head opening and closing rotational structure of engineering machinery, particularly a kind of hydraulic grab bucket head opening and closing rotational structure.
Background technology
The working method of subterranean continuous wall hydraulic grab is deadweight pressurization, and the oil cylinder push-and-pull in grab bucket, realizes the action of bucket head opening and closing.The connected mode of bucket head opening and closing rotational structure is pinned connection, contacts, then be connected with bucket head and the seat that struggles against by axle sleeve outside bearing pin with axle sleeve.
At present, bearing pin in various grab bucket bucket head opening and closing rotational structure and all non-grease up between axle sleeve, and there is no sealing with the external world, so in slurry environment, tiny sandstone can insert the minim gap between bearing pin and axle sleeve, cause bucket head to rotate to be obstructed, even aggravate the spot corrosion of bearing pin and boss surfaces.
Summary of the invention
The purpose of this utility model to provide a kind of: the hydraulic grab bucket head opening and closing rotational structure that structure is simple, reliable and practical, when the head opening and closing rotational structure that struggles against is substantially constant, realizes keeping between bearing pin and axle sleeve lubrication, isolated foreign matter, life-extending.
The purpose of this utility model is achieved in that this structure comprises: bucket head, bucket seat, bearing pin, the first axle sleeve, the second axle sleeve, O RunddichtringO, lubricating cup, protective cap, pad and baffle plate; In described structure, bearing pin is connected with bucket seat by the first axle sleeve, is connected with bucket head by the second axle sleeve; First sleeve lining has bar sealed groove near an endface position, and the second sleeve lining respectively has bar sealed groove near both ends of the surface position, mounting O-shaped sealing ring in sealed groove; Bearing pin both ends of the surface center has each one of the hydraulic fluid port of band counter sink, and the lubricating cup be arranged on hydraulic fluid port is positioned at counter sink; Counter sink has screw thread, is screwed into protective cap, lubricating cup can be protected to avoid when the work of grab bucket impaired.
There is a sealed groove one end on the inwall of the first described axle sleeve, and inwall also has the oil groove of vertical and horizontal; Respectively there is a sealed groove at the two ends of the inwall of the second described axle sleeve, between two sealed grooves, be distributed with crisscross oil groove; The hydraulic fluid port of pin roll end face is connected with the oil duct of inside; The outlet of oil duct is positioned on the bearing pin face of cylinder, corresponding with the position of the oil groove on two axle sleeves; Lubricating grease is injected by lubricating cup, through oil channel and oil groove, can be full of the gap of bearing pin and two shaft rooms, reach sufficient lubrication, and O RunddichtringO can make lubricating grease seal with extraneous.
The utility model has the advantages that: by increasing hydraulic fluid port and oil duct, and set up the mode of sealing device, making between bearing pin and axle sleeve can grease up, and ensure sealing, outside mud and sandstone can not enter the gap between bearing pin and axle sleeve, thus reach the effect of lubrication and sealing, solve in grab bucket work the problem of struggle against head opening and closing rotational structure clamping stagnation and bearing pin wearing and tearing.
This hydraulic grab bucket head opening and closing rotational structure is subterranean continuous wall hydraulic grab bucket head opening and closing rotational structure, is applicable to the special slurry environment in continuous wall trench underground construction.Structure is simple, reliable and practical, when the head opening and closing rotational structure of struggling against is substantially constant, realizes keeping between bearing pin and axle sleeve lubrication, isolated foreign matter, life-extending.
Accompanying drawing explanation
Fig. 1 is an embodiment sectional structure chart of the present utility model.
Fig. 2 is the sectional structure chart of the utility model first axle sleeve.
Fig. 3 is the sectional structure chart of the utility model second axle sleeve.
In figure, the 1, first axle sleeve; 2, the second axle sleeve; 3, O RunddichtringO; 4, bearing pin; 5, lubricating cup; 6, protective cap; 7, baffle plate; 8, pad; 9, struggle against head; 10, struggle against seat; 11, sealed groove; 12, oil groove.
Detailed description of the invention
Be described further below in conjunction with drawings and Examples.
This structure comprises: bucket 9, bucket seat 10, bearing pin 4, first axle sleeve 1, second axle sleeve 2, O RunddichtringO 3, lubricating cup 5, protective cap 6, pad 8 and baffle plate 7; In described structure, bearing pin 4 is connected with bucket seat 10 by the first axle sleeve 1,9 to be connected with struggling against by the second axle sleeve 2; First axle sleeve 1 inwall has 1 sealed groove 11, second axle sleeve 2 inwall near an endface position and respectively has 2 sealed grooves 11 near both ends of the surface position, mounting O-shaped sealing ring 3 in sealed groove 11; Bearing pin 4 both ends of the surface center has each one of the hydraulic fluid port of band counter sink, and the lubricating cup 5 be arranged on hydraulic fluid port is positioned at counter sink; Counter sink has screw thread, is screwed into protective cap 6, lubricating cup can be protected to avoid when the work of grab bucket impaired.
There is a sealed groove 11 one end on the inwall of the first described axle sleeve 1, and inwall also has the oil groove 12 of vertical and horizontal; Respectively there is a sealed groove 11 at the two ends of the inwall of the second described axle sleeve 2, between two sealed grooves, be distributed with crisscross oil groove 12; The hydraulic fluid port of bearing pin 4 end face is connected with the oil duct of inside; The outlet of oil duct is positioned on bearing pin 4 face of cylinder, corresponding with the position of the oil groove 12 on two axle sleeves; Lubricating grease is injected by lubricating cup 5, through oil channel and oil groove 12, can be full of the gap of bearing pin 4 and two shaft rooms, reach sufficient lubrication, and O RunddichtringO 3 can make lubricating grease seal with extraneous.
O RunddichtringO 3 is loaded in the sealed groove 11 of the first axle sleeve 1, second axle sleeve 2, again the first axle sleeve 1, second axle sleeve 2 is respectively charged in the axis hole of bucket seat 10, bucket 9 correspondence, then by the axis hole alignment of bucket seat 10 and bucket 9, and pad 8 is loaded onto at the axis hole end face that the two contacts.Next; bearing pin 4 is loaded axis hole completely; and baffle plate 7 of burn-oning at bearing pin 4 two ends is fixed; align with the hydraulic fluid port of bearing pin 4 in the hole at baffle plate 7 center; hydraulic fluid port is exposed completely, then lubricating cup 5 is installed on hydraulic fluid port, and inject lubricating grease from lubricating cup 5; be full of oil duct oil groove 12 and internal clearance to lubricating grease, be finally screwed into protective cap 6.
Claims (2)
1. a hydraulic grab bucket head opening and closing rotational structure, is characterized in that: this structure comprises: bucket head, bucket seat, bearing pin, the first axle sleeve, the second axle sleeve, O RunddichtringO, lubricating cup, protective cap, pad and baffle plate; In described structure, bearing pin is connected with bucket seat by the first axle sleeve, is connected with bucket head by the second axle sleeve; First sleeve lining has bar sealed groove near an endface position, and the second sleeve lining respectively has bar sealed groove near both ends of the surface position, mounting O-shaped sealing ring in sealed groove; Bearing pin both ends of the surface center has each one of the hydraulic fluid port of band counter sink, and the lubricating cup be arranged on hydraulic fluid port is positioned at counter sink; Counter sink has screw thread, is screwed into protective cap, lubricating cup can be protected to avoid when the work of grab bucket impaired.
2. hydraulic grab bucket head opening and closing rotational structure according to claim 1, is characterized in that: there is a sealed groove one end on the inwall of the first described axle sleeve, and inwall also has the oil groove of vertical and horizontal; Respectively there is a sealed groove at the two ends of the inwall of the second described axle sleeve, between two sealed grooves, be distributed with crisscross oil groove; The hydraulic fluid port of pin roll end face is connected with the oil duct of inside; The outlet of oil duct is positioned on the bearing pin face of cylinder, corresponding with the position of the oil groove on two axle sleeves; Lubricating grease is injected by lubricating cup, through oil channel and oil groove, can be full of the gap of bearing pin and two shaft rooms, reach sufficient lubrication, and O RunddichtringO can make lubricating grease seal with extraneous.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364825.7U CN204080893U (en) | 2014-07-03 | 2014-07-03 | Hydraulic grab bucket head opening and closing rotational structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420364825.7U CN204080893U (en) | 2014-07-03 | 2014-07-03 | Hydraulic grab bucket head opening and closing rotational structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204080893U true CN204080893U (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420364825.7U Active CN204080893U (en) | 2014-07-03 | 2014-07-03 | Hydraulic grab bucket head opening and closing rotational structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204080893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005140A (en) * | 2017-11-29 | 2018-05-08 | 黄力 | A kind of clean and effective new type mining hydraulic crawler excavator |
-
2014
- 2014-07-03 CN CN201420364825.7U patent/CN204080893U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005140A (en) * | 2017-11-29 | 2018-05-08 | 黄力 | A kind of clean and effective new type mining hydraulic crawler excavator |
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| GR01 | Patent grant |