CN105201953A - Bucket cylinder of excavator - Google Patents
Bucket cylinder of excavator Download PDFInfo
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- CN105201953A CN105201953A CN201510578099.8A CN201510578099A CN105201953A CN 105201953 A CN105201953 A CN 105201953A CN 201510578099 A CN201510578099 A CN 201510578099A CN 105201953 A CN105201953 A CN 105201953A
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- piston rod
- hydraulic fluid
- cylinder body
- cylinder
- piston
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Abstract
The invention discloses a bucket cylinder of an excavator. The bucket cylinder comprises a cylinder body, a piston rod and a piston, wherein the piston is assembled in the cylinder body, one end of the piston rod extends into the cylinder body from outside of the cylinder body and is matched and connected with the piston, the other end of the piston rod extends out of the cylinder body, oil ports are formed in the piston rod, and oil channels are formed axially in the piston rod and correspond to the oil ports. According to the scheme, the bucket cylinder of the middle-sized hydraulic excavator can adapt to a series of complicated and changeable working conditions such as high temperature, high speed and high probability of splash of molten steel of a steel mill, meanwhile, the production cost of the bucket cylinder is saved, the working performance of the bucket cylinder is improved well, and the service life of the bucket cylinder is prolonged well.
Description
Technical field
The present invention relates to cylinder structure field, the oil circuit particularly relating to a kind of medium-sized excavator bucket cylinder for steel mill's molten steel stirring improves.
Background technique
Medium-sized hydraulic shovel is that in hydraulic shovel, sales volume is maximum, handling good, the product line that application area is the widest, as the bucket cylinder of its power unit, nearest from bucket, job behavior requires higher, and therefore its project organization directly affects the operational reliability of bucket cylinder, is one of guardian technique of facing of current bucket cylinder.Often adopt medium-sized excavator to go to stir molten steel in present steel industry, but due to the restriction by the particular surroundings such as high temperature and molten steel splashing, effect is not very desirable.
Mainly there is following problem in general Hydraulic Excavator Bucket oil cylinder: 1. in the welding process of angle coupling and oil pipe, cylinder barrel, cylinder barrel unevenly causes residual stress because being heated in high temperature environments in steel mill molten steel stirs, weld joint is easily leaked, and cylinder barrel opens the intensity that hydraulic fluid port also weakens cylinder barrel simultaneously.2. end caps flange hydraulic fluid port o type circle and rod seal circle are heated and easily produce distortion and serious wear, more easily cause the internal leakage of oil cylinder under same equal pressure and speed.3., in stirring molten steel process, because the molten steel splashed out is unrestrained on the piston rod, easily cause the problems such as piston rod wire drawing.Comprehensive above three kinds of problems, in the urgent need to a kind of novel bucket cylinder project organization that can reduce welding procedure, reduce oil circuit crossover sub number of times, strengthen piston rod surface protection on Vehicles Collected from Market.
Summary of the invention
The technical problem that the present invention mainly solves be to provide a kind of can the service behaviour of high bucket cylinder, reduce maintenance frequency, increase the excavator bucket oil cylinder in working life.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts is: provide a kind of excavator bucket oil cylinder, comprise: cylinder body, piston rod and piston, Piston assembling is in cylinder body, piston rod one end is stretched in cylinder body from cylinder body, and is connected with piston, and the piston rod the other end extends outside cylinder body, and offering hydraulic fluid port on the piston rod, in piston rod, corresponding hydraulic fluid port axially offers asphalt channel.
In a preferred embodiment of the present invention, cylinder body one end is equipped with the end cap connecting piston rod and cylinder body.
In a preferred embodiment of the present invention, piston rod offers 2 hydraulic fluid ports, and in piston rod, corresponding two hydraulic fluid ports are provided with 2 asphalt channels.
In a preferred embodiment of the present invention, 2 described hydraulic fluid ports are respectively large chamber hydraulic fluid port and loculus hydraulic fluid port, and 2 corresponding asphalt channels are respectively large chamber oil circuit and loculus oil circuit.
In a preferred embodiment of the present invention, described hydraulic fluid port is flange hydraulic fluid port.
The invention has the beneficial effects as follows: the present invention be a kind ofly can adapt to steel mill's high temperature, at a high speed, molten steel easily spills the medium-sized Hydraulic Excavator Bucket oil cylinder of this series of operating mode complicated and changeable, also a saving the cost of production of bucket cylinder, also to its service behaviour with there is good lifting working life simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of excavator bucket oil cylinder one of the present invention preferred embodiment;
Fig. 2 is the external structure schematic diagram of excavator bucket oil cylinder shown in Fig. 1;
Fig. 3 is the stereogram of excavator bucket oil cylinder shown in Fig. 1;
In accompanying drawing, the mark of each parts is as follows: 1, cylinder body, and 2, piston rod, 3, piston, 4, end cap, 5, large chamber hydraulic fluid port, 6, loculus hydraulic fluid port, 7, large chamber oil circuit, 8, loculus oil circuit.
Embodiment
Be clearly and completely described to the technological scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, Fig. 2 and Fig. 3, the embodiment of the present invention comprises:
A kind of excavator bucket oil cylinder, comprising: cylinder body 1, piston rod 2 and piston 3.
Piston 3 is assemblied in cylinder body 1, and piston rod 2 one end is stretched in cylinder body 1 from cylinder body 1, and is connected with piston 3, and piston rod 2 the other end extends outside cylinder body 1.
Cylinder body 1 one end is equipped with the end cap 4 connecting piston rod 2 and cylinder body 1.Sealed by end cap 4 one end by cylinder body 1, thus form a seal chamber.
Cancel traditional bucket cylinder end cap 4 and cylinder bottom hydraulic fluid port form, adopt inverted structure, solve piston rod 2 because closely spattering the problem of wound by molten steel apart from scraper bowl, make bar seal away from scraper bowl simultaneously, the hole envelope making high temperature resistance stronger is gone close to scraper bowl, effectively ensure that the sealability of oil cylinder.
Piston rod 2 offers hydraulic fluid port, and in piston rod 2, corresponding hydraulic fluid port axially offers asphalt channel.
The preferred structure of the present invention offers 2 hydraulic fluid ports at piston rod 2, and in piston rod 2, corresponding two hydraulic fluid ports are provided with 2 asphalt channels.
Wherein, 2 hydraulic fluid ports are respectively large chamber hydraulic fluid port 5 and loculus hydraulic fluid port 6, and 2 corresponding asphalt channels are respectively large chamber oil circuit 7 and loculus oil circuit 8.
Described hydraulic fluid port is preferably flange hydraulic fluid port.
When bucket cylinder works, hydraulic oil directly enters the large loculus of oil cylinder by the flange hydraulic fluid port on piston rod 2, stop to know clearly and adopt traditional oils form of tubes and the weld seam leakage of oil that causes in the past, cylinder barrel stress is concentrated, the phenomenons such as cylinder oil port place strength reduction, also eliminate the component such as oil cylinder hard tube and pipe clamp, both the perforate in course of working had been reduced, welding, the technique processes such as assembling oil cylinder oil pipe, in turn increase stability and reliability in bucket cylinder working procedure, decrease the die sinking difficulty of end cap simultaneously, improve tension and the compression resistance of cylinder bottom, save cost of production, increase working life.
The present invention adopts above technological scheme, and the pairing of impacting with high pressure material with processing technology obtain and passes through, on the medium-sized hydraulic shovel simultaneously also in steel mill, installation obtains certification on the spot.From test experiments data and practical application, the present invention is a kind of hydraulic excavator bucket cylinder structure being suitable for operation under specific condition well, and meanwhile, this technology is also promoted on the medium-sized excavator of operation under other environment following.
In sum, the present invention be a kind ofly can adapt to steel mill's high temperature, at a high speed, molten steel easily spills the medium-sized Hydraulic Excavator Bucket oil cylinder of this series of operating mode complicated and changeable, also a saving the cost of production of bucket cylinder, also to its service behaviour with there is good lifting working life simultaneously.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. an excavator bucket oil cylinder, comprise: cylinder body, piston rod and piston, it is characterized in that, Piston assembling is in cylinder body, piston rod one end is stretched in cylinder body from cylinder body, and is connected with piston, and the piston rod the other end extends outside cylinder body, and offering hydraulic fluid port on the piston rod, in piston rod, corresponding hydraulic fluid port axially offers asphalt channel.
2. excavator bucket oil cylinder according to claim 1, is characterized in that, cylinder body one end is equipped with the end cap connecting piston rod and cylinder body.
3. excavator bucket oil cylinder according to claim 1, is characterized in that, piston rod offers 2 hydraulic fluid ports, and in piston rod, corresponding two hydraulic fluid ports are provided with 2 asphalt channels.
4. excavator bucket oil cylinder according to claim 3, is characterized in that, 2 described hydraulic fluid ports are respectively large chamber hydraulic fluid port and loculus hydraulic fluid port, and 2 corresponding asphalt channels are respectively large chamber oil circuit and loculus oil circuit.
5. excavator bucket oil cylinder according to claim 3, is characterized in that, described hydraulic fluid port is flange hydraulic fluid port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578099.8A CN105201953A (en) | 2015-09-14 | 2015-09-14 | Bucket cylinder of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510578099.8A CN105201953A (en) | 2015-09-14 | 2015-09-14 | Bucket cylinder of excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105201953A true CN105201953A (en) | 2015-12-30 |
Family
ID=54949830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510578099.8A Pending CN105201953A (en) | 2015-09-14 | 2015-09-14 | Bucket cylinder of excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105201953A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202370934U (en) * | 2011-12-07 | 2012-08-08 | 福建侨龙专用汽车有限公司 | Multipurpose oil cylinder |
| CN102705291A (en) * | 2012-05-28 | 2012-10-03 | 湘煤立达矿山装备股份有限公司 | Oil cylinder capable of passing oil by piston rod |
| US20120255432A1 (en) * | 2011-03-15 | 2012-10-11 | Liebherr-Mining Equipment Company | Multi-stage hydraulic cylinder assembly |
| CN102913507A (en) * | 2012-11-16 | 2013-02-06 | 江阴市洪腾机械有限公司 | Hydraulic cylinder with hollow piston rod |
| CN205025855U (en) * | 2015-09-14 | 2016-02-10 | 江苏恒立高压油缸股份有限公司 | Power shovel hydro -cylinder |
-
2015
- 2015-09-14 CN CN201510578099.8A patent/CN105201953A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120255432A1 (en) * | 2011-03-15 | 2012-10-11 | Liebherr-Mining Equipment Company | Multi-stage hydraulic cylinder assembly |
| CN202370934U (en) * | 2011-12-07 | 2012-08-08 | 福建侨龙专用汽车有限公司 | Multipurpose oil cylinder |
| CN102705291A (en) * | 2012-05-28 | 2012-10-03 | 湘煤立达矿山装备股份有限公司 | Oil cylinder capable of passing oil by piston rod |
| CN102913507A (en) * | 2012-11-16 | 2013-02-06 | 江阴市洪腾机械有限公司 | Hydraulic cylinder with hollow piston rod |
| CN205025855U (en) * | 2015-09-14 | 2016-02-10 | 江苏恒立高压油缸股份有限公司 | Power shovel hydro -cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 213000 Wujin high tech Zone, Jiangsu Province, No. long hidden Road, No. 99 Applicant after: JIANGSU HENGLI HYDRAULIC CO., LTD. Address before: 213000 Wujin high tech Zone, Jiangsu Province, No. long hidden Road, No. 99 Applicant before: Jiangsu Hengli High Pressure Oil Cylinder Co., Ltd. |
|
| COR | Change of bibliographic data | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151230 |
|
| RJ01 | Rejection of invention patent application after publication |