CN2721949Y - Assembly of pin - Google Patents
Assembly of pin Download PDFInfo
- Publication number
- CN2721949Y CN2721949Y CN 200420072626 CN200420072626U CN2721949Y CN 2721949 Y CN2721949 Y CN 2721949Y CN 200420072626 CN200420072626 CN 200420072626 CN 200420072626 U CN200420072626 U CN 200420072626U CN 2721949 Y CN2721949 Y CN 2721949Y
- Authority
- CN
- China
- Prior art keywords
- pin
- bearing pin
- assembly
- axis hole
- lid
- 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 - Lifetime
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- Rolling Contact Bearings (AREA)
- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The utility model relates to an assembly of pin, comprising a pin, a fixing jacket and an installation part. The pin is arranged in the axle hole of the installation part. A first end of the pin is connected with one end of the axle hole through the fixing jacket. A second end of the pin is fixed to the other end of the axle hole. The fixing jacket is connected with the first end of the pin through a bolt. The fixing jacket comprises a cover and a positioning hole arranged on the cover. Flanges are provided around the cover. The flange external diameter is bigger than the internal diameter of the axle hole of the first end of the pin. Through the use of the assembly of pin, the pin can be effectively held; the axle sleeve can be tightly expanded. Thus, the construction safety is ensured. The production cost is saved.
Description
Technical field
The utility model relates to a kind of Assembly of pin, relates in particular to a kind of rocker arm of coal mining machine Assembly of pin.
Background technique
The 6LS-05 rocker arm of coal mining machine that U.S. JOY company produces, disintegrator and fuselage adopt bearing pin to be connected and fixed.See also Fig. 1, rocking arm bearing pin 1 ' two ends are taper sheath structure 2 ', and axial restraint is by bolton taper ringfeder 2 ' back tensioner.Yet, in actual use, because can not be effectively with axle sleeve 2 ' tensioner, cause producing between bearing pin 1 ' and the rocker shaft hole excessive gap, when coal cutting, cause bigger impact load, cause often fracture of rocking arm bearing pin 1 ', because fixing unreliable, bearing pin 1 ' is often outer scurries, and has had a strong impact on normally carrying out of producing.The working life of this bearing pin is shorter, has increased mining costs.
At above-mentioned situation, be necessary to design a kind of new rocker-arm roller pin shaft assembly, thereby overcome the problems referred to above.
The model utility content
The purpose of this utility model is to provide a kind of Assembly of pin with bearing pin secure fixation, the effective tensioner of axle sleeve.
To achieve these goals, the utility model is such design: this Assembly of pin comprises bearing pin, fixed cover and assembly department, wherein bearing pin is installed in the axis hole of assembly department, it is characterized in that: first end of this bearing pin is connected with fixed cover in an end of axis hole, second end of bearing pin is fixed in the other end of axis hole, fixed cover is connected by bolt with bearing pin first end, wherein fixed cover comprises lid and is located at positioning hole on the lid, be provided with flange around the described lid, the external diameter of its flange is greater than the internal diameter of the first end place axis hole of bearing pin.
By adopting said structure, can make the axle sleeve tensioner in effective fixing pivot pin, thereby guarantee construction safety, saved cost of production.
Description of drawings
Fig. 1 is the sectional view of existing rocker arm of coal mining machine Assembly of pin.
Fig. 2 is the sectional view of rocker arm of coal mining machine Assembly of pin of the present utility model.
Embodiment
Specifically describe embodiment of the present utility model below in conjunction with Fig. 2, Assembly of pin is used for rocker arm of coal mining machine, it comprise bearing pin 1, with bearing pin 1 interconnective fixed cover 2 and the assembly department 3 that holds bearing pin, wherein bearing pin 1 is installed in the axis hole of assembly department 3, first end 10 of this bearing pin 1 is connected with fixed cover 2 in an end of axis hole, and second end 12 of bearing pin 1 is fixed in an other end of axis hole with snap fit.
On first end 10 of bearing pin 1, be provided with screw 100, and second end 12 is provided with holding section 200, and the external diameter of this holding section 200 is greater than the internal diameter of bearing pin 1 second end 12 place axis holes, like this, bearing pin 1 can be fastened in securely the outside of axis hole, thereby define bearing pin 1 moving in the horizontal direction.
Fixed cover 2 comprises lid 20 and the sleeve 22 that is extended to the axis hole inboard by lid 20 surfaces, the inwall of sleeve 22 is the truncated cone shape, and first end 10 of bearing pin 1 promptly is contained within this sleeve 22, certainly, the inwall of this sleeve 22 also can be designed to other shapes, for example cylindrical other shapes that waits, perhaps the given shape according to bearing pin 1 is designed to corresponding shape.
Described lid 20 is provided with positioning hole 24, first end 10 of lid 20 and bearing pin 1 is connected by bolt, wherein be provided with flange 202 around the lid 20, the external diameter of its flange 202 is greater than the internal diameter of first end, 10 place axis holes, thereby, lid 20 is held in the outside of axis hole by the effect that holds of flange 202.
Therefore,, realized effective location, controlled bearing pin 1 degrees of freedom in the horizontal direction bearing pin 1 by the flange 202 of lid 20, the holding section 200 of bearing pin 1 second end 12 and the bolted acting in conjunction between lid 2 and the bearing pin 1.Compare with existing Assembly of pin in addition, the Assembly of pin that adopts structurally is more suitable for the exploitation work of down-hole.
By adopting above-mentioned design, make bearing pin 1 in axis hole, obtain effective location, gap between bearing pin 1 and the axis hole is less, in actual coal mining process, rocker arm of coal mining machine is less to the impulsive load of bearing pin 1, therefore all less to the wearing and tearing and the impact failure degree of bearing pin 1, solved the problem of scurrying axle and off-axis, and brought up to 5 month from 1 month the working life of this type of bearing pin, therefore reduced because change, handle the used service working time of bearing pin, thereby increased coal production, improved economic benefit.
Claims (4)
1. Assembly of pin, it comprises bearing pin, fixed cover and assembly department, wherein bearing pin is installed in the axis hole of assembly department, it is characterized in that: first end of this bearing pin is connected with fixed cover in an end of axis hole, second end of bearing pin is fixed in the other end of axis hole, and fixed cover is connected by bolt with bearing pin first end, and wherein fixed cover comprises lid and is located at positioning hole on the lid, be provided with flange around the described lid, the external diameter of its flange is greater than the internal diameter of the first end place axis hole of bearing pin.
2. Assembly of pin as claimed in claim 1 is characterized in that: described bearing pin second end is provided with the holding section, and the external diameter of this holding section is greater than the internal diameter of the bearing pin second end place axis hole.
3. Assembly of pin as claimed in claim 2 is characterized in that: fixed cover further comprises the sleeve that is extended by lid in axis hole.
4. Assembly of pin as claimed in claim 3 is characterized in that: the inwall of described sleeve is the truncated cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072626 CN2721949Y (en) | 2004-06-25 | 2004-06-25 | Assembly of pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072626 CN2721949Y (en) | 2004-06-25 | 2004-06-25 | Assembly of pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2721949Y true CN2721949Y (en) | 2005-08-31 |
Family
ID=35012321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420072626 Expired - Lifetime CN2721949Y (en) | 2004-06-25 | 2004-06-25 | Assembly of pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2721949Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491751C (en) * | 2007-08-08 | 2009-05-27 | 中国科学院光电研究院 | Locking mechanism |
| CN101782098A (en) * | 2009-01-15 | 2010-07-21 | 诺尔格螺栓公司 | Clamp bolt device |
| CN102963847A (en) * | 2012-11-18 | 2013-03-13 | 苏州蓝王机床工具科技有限公司 | Quick disassembling and assembling mechanism of working platform of overhead working truck |
| TWI414687B (en) * | 2009-01-16 | 2013-11-11 | Hon Hai Prec Ind Co Ltd | Security pin and method for making the same |
| CN103867558A (en) * | 2012-12-11 | 2014-06-18 | 北汽福田汽车股份有限公司 | Hinge apparatus |
| CN105202012A (en) * | 2015-09-25 | 2015-12-30 | 中国铁建重工集团有限公司 | Pin shaft |
-
2004
- 2004-06-25 CN CN 200420072626 patent/CN2721949Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491751C (en) * | 2007-08-08 | 2009-05-27 | 中国科学院光电研究院 | Locking mechanism |
| CN101782098A (en) * | 2009-01-15 | 2010-07-21 | 诺尔格螺栓公司 | Clamp bolt device |
| TWI414687B (en) * | 2009-01-16 | 2013-11-11 | Hon Hai Prec Ind Co Ltd | Security pin and method for making the same |
| CN102963847A (en) * | 2012-11-18 | 2013-03-13 | 苏州蓝王机床工具科技有限公司 | Quick disassembling and assembling mechanism of working platform of overhead working truck |
| CN103867558A (en) * | 2012-12-11 | 2014-06-18 | 北汽福田汽车股份有限公司 | Hinge apparatus |
| CN103867558B (en) * | 2012-12-11 | 2016-05-04 | 北汽福田汽车股份有限公司 | A kind of articulated mounting |
| CN105202012A (en) * | 2015-09-25 | 2015-12-30 | 中国铁建重工集团有限公司 | Pin shaft |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140625 Granted publication date: 20050831 |