CN203716209U - Pin shaft connecting structure and excavator - Google Patents
Pin shaft connecting structure and excavator Download PDFInfo
- Publication number
- CN203716209U CN203716209U CN201420051898.0U CN201420051898U CN203716209U CN 203716209 U CN203716209 U CN 203716209U CN 201420051898 U CN201420051898 U CN 201420051898U CN 203716209 U CN203716209 U CN 203716209U
- Authority
- CN
- China
- Prior art keywords
- bolt
- pin shaft
- connection structure
- shaft connection
- protective sleeve
- 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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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model provides a pin shaft connecting structure and an excavator. The pin shaft connecting structure comprises a pin shaft inserted into a first member, wherein a lug plate is fixedly arranged on the pin shaft; the lug plate is fixed to the first member through a bolt; a protection sleeve is sleeved on a part, which is inserted into a bolt rod in the lug plate, of the bolt. By adopting the pin shaft connecting structure and the excavator provided by the utility model, the protection sleeve is sleeved on the bolt, so that the impact force on the bolt can be reduced, the bolt is protected, and the service life of the bolt is prolonged.
Description
Technical field
The utility model relates to frame for movement technology, relates in particular to a kind of pin shaft connection structure and excavator.
Background technology
In a lot of engineering machinery, be provided with pin shaft connection structure, realize the mutual rotation of two members by pin shaft connection structure.
In prior art, conventional pin shaft connection structure as shown in Figure 1, together with the first member 1 is located in by bearing pin 3 with second component 2, wherein, one end of bearing pin 3 is fixedly connected with otic placode 4, otic placode 4 is fixed on the first member 1 by bolt 5, and the bearing pin 3 that second component 2 connects on the first member 1 rotates.
But the problem that this structure exists is, in the time that the first member 1 moves mutually with second component 2, especially this structure is used in excavator, excavation action repeatedly makes to produce certain impact force between the first member 1 and second component 2, the first member 1 can drive bearing pin 3 to produce movement tendency while being subject to impact force, but the first member 1 links together by bolt 5 and bearing pin 3 and otic placode 4, in the time that the first member 1 drives otic placode 4 to move by bolt 5, bolt 5 can be subject to the shearing of the first member 1 and otic placode 4, after working long hours, bolt 5 can produce distortion, even cut off and cause bearing pin 3 to scurry out, thereby accidents caused, there is certain potential safety hazard.
Utility model content
The utility model provides a kind of pin shaft connection structure and excavator, and wherein the bolt in pin shaft connection structure can be protected, and reduces the shear stress that bolt is subject to, and extends the application life of bolt.
The utility model provides a kind of pin shaft connection structure; comprise the bearing pin being arranged in the first member; on described bearing pin, be fixedly installed otic placode, described otic placode is bolted on described the first member, and the shank of bolt part that described bolt is arranged in described otic placode is arranged with protective sleeve.
In pin shaft connection structure as above, described protective sleeve is the cylinder-like structure that one end arranged outside has flange, when described protective sleeve is located on described bolt, is provided with one end of flange near the bolt head of described bolt.
In pin shaft connection structure as above, on the external surface of described protective sleeve and described otic placode, wear between the bolt hole inner surface of described bolt and there is prepsetting gap.
In pin shaft connection structure as above, between the bolt head of described bolt and described protective sleeve, be provided with spring washer.
In pin shaft connection structure as above, between described spring washer and described protective sleeve, be provided with plain washer.
The utility model also provides a kind of excavator, includes pin shaft connection structure as above.
The pin shaft connection structure that the utility model provides and excavator, by sheathed protective sleeve on the bolt of pin shaft connection structure, can reduce the suffered impact force of bolt, thereby bolt is protected, and extends the application life of bolt.
Brief description of the drawings
Fig. 1 is the schematic diagram of pin shaft connection structure in this prior art;
The schematic diagram of the pin shaft connection structure that Fig. 2 provides for the utility model embodiment;
The structural representation of protective sleeve in the pin shaft connection structure that Fig. 3 provides for the utility model embodiment.
Detailed description of the invention
The utility model embodiment provides a kind of pin shaft connection structure, as shown in Figure 2, this pin shaft connection structure comprises the bearing pin 3 being arranged in the first member 1, is fixedly installed otic placode 4 on bearing pin 3, is specifically fixedly connected with otic placode 4 in one end of bearing pin 3, otic placode 4 is fixed on the first member 1 by bolt 5, like this, one end of bearing pin 3 is fixed on the first member 1, and axial float can not occur, on bearing pin 3, be also equipped with second component 2, second component 2 can rotate relative to the first member 1 around bearing pin 3;
In the present embodiment, because second component 2 is in the time that the first member 1 rotates, can be to the certain impact force of the first member 1, for protection bolt 5, while preventing that the first member 1 is subject to impact force, otic placode 4 is sheared bolt 5, the shank of bolt part being arranged on bolt 5 in otic placode 4 in the present embodiment is arranged with protective sleeve 6, in the time that the first member 1 is subject to impact force, otic placode 4 is applied to power on protective sleeve 6, instead of directly bolt 5 is sheared, thereby protection bolt 5 can not cut off by the impact of shearing stress, can not occur to be cut off and cause fastening part to remain in the problem that cannot take out in the first member 1 because of bolt 5 yet.
Preferably; on the external surface of protective sleeve 6 and otic placode 4, wear between the bolt hole inner surface of bolt 5 and there is prepsetting gap; the gap of 1mm left and right is set in the present embodiment; by gap is set; otic placode 4 is in the time applying active force to protective sleeve 6; also there is certain buffering, thereby otic placode 4 is reduced the injury of protective sleeve 6.
In the present embodiment, as shown in Figure 3, protective sleeve 6 has the cylinder-like structure of flange 61 for one end arranged outside, in the time that cylinder-like structure is set on bolt 5, and the bolt head with one end of flange 61 near bolt 5.
Loosening for preventing bolt 5, as shown in Figure 2, between the bolt head of bolt 5 and protective sleeve 6, be also provided with spring washer 7; in addition; between spring washer 8 and protective sleeve 6, be provided with plain washer 8, to increase the contact area of protective sleeve 6 and spring washer 8, reduce the stressed of protective sleeve 6 bearing surfaces.
The pin shaft connection structure that the utility model embodiment provides, is arranged with protective sleeve by the shank of bolt part being arranged at bolt in otic placode, can protect bolt, reduces the shear stress that bolt is subject to, and extends the application life of bolt.Meanwhile, after working long hours, if protective sleeve has wearing and tearing or has infringement, can directly change protective sleeve, reduce maintenance cost.
The utility model another embodiment also provide a kind of excavator, is provided with the pin shaft connection structure that the arbitrary embodiment of the utility model provides in this excavator, and the pin shaft connection structure providing by the utility model is set can reduce the generation of accident in mining process.
Finally it should be noted that: above each embodiment, only in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to aforementioned each embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or some or all of technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the scope of the each embodiment technical scheme of the utility model.
Claims (6)
1. a pin shaft connection structure; it is characterized in that, comprise the bearing pin being arranged in the first member, on described bearing pin, be fixedly installed otic placode; described otic placode is bolted on described the first member, and the shank of bolt part that described bolt is arranged in described otic placode is arranged with protective sleeve.
2. pin shaft connection structure according to claim 1, is characterized in that, described protective sleeve is the cylinder-like structure that one end arranged outside has flange, when described protective sleeve is located on described bolt, is provided with one end of flange near the bolt head of described bolt.
3. pin shaft connection structure according to claim 1, is characterized in that, wears between the bolt hole inner surface of described bolt and have prepsetting gap on the external surface of described protective sleeve and described otic placode.
4. according to the arbitrary described pin shaft connection structure of claim 1-3, it is characterized in that, between the bolt head of described bolt and described protective sleeve, be provided with spring washer.
5. pin shaft connection structure according to claim 4, is characterized in that, between described spring washer and described protective sleeve, is provided with plain washer.
6. an excavator, is characterized in that, comprises the arbitrary described pin shaft connection structure of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051898.0U CN203716209U (en) | 2014-01-26 | 2014-01-26 | Pin shaft connecting structure and excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420051898.0U CN203716209U (en) | 2014-01-26 | 2014-01-26 | Pin shaft connecting structure and excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203716209U true CN203716209U (en) | 2014-07-16 |
Family
ID=51155378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420051898.0U Expired - Fee Related CN203716209U (en) | 2014-01-26 | 2014-01-26 | Pin shaft connecting structure and excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203716209U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405007A (en) * | 2014-12-07 | 2015-03-11 | 常州市武进南夏墅苏南锻造有限公司 | Leaking preventing type scraper pan of excavator |
| CN108502537A (en) * | 2018-05-30 | 2018-09-07 | 辽宁三三工业有限公司 | A kind of duct piece assembling machine sucker shearing resistance system |
-
2014
- 2014-01-26 CN CN201420051898.0U patent/CN203716209U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405007A (en) * | 2014-12-07 | 2015-03-11 | 常州市武进南夏墅苏南锻造有限公司 | Leaking preventing type scraper pan of excavator |
| CN108502537A (en) * | 2018-05-30 | 2018-09-07 | 辽宁三三工业有限公司 | A kind of duct piece assembling machine sucker shearing resistance system |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110142 Shenyang economic and Technological Development Zone, Liaoning Road, No. 28 Patentee after: ZHONGCHE SHENYANG LOCOMOTIVE AND VEHICLE CO., LTD. Address before: 110142 Shenyang economic and Technological Development Zone, Liaoning Road, No. 28 Patentee before: China Beiche Group Shenyang Locomotive Vehicle Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20200126 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |