CN203453229U - Pin shaft - Google Patents
Pin shaft Download PDFInfo
- Publication number
- CN203453229U CN203453229U CN201320489066.2U CN201320489066U CN203453229U CN 203453229 U CN203453229 U CN 203453229U CN 201320489066 U CN201320489066 U CN 201320489066U CN 203453229 U CN203453229 U CN 203453229U
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- CN
- China
- Prior art keywords
- shaft sleeve
- mandrel
- bearing
- positioning
- positioning element
- 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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- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses a pin shaft and relates to the technical field of construction machinery manufacturing. The pin shaft comprises a central spindle, wherein a self-lubricating shaft sleeve is arranged on the central spindle in a penetrating mode, and a first positioning element and a second positioning element are arranged on the central spindle and are located at the two ends of the self-lubricating shaft sleeve. Compared with the prior art, the pin shaft solves the problem that an existing pin shaft is high in maintenance cost and high in labor cost.
Description
Technical field
The utility model relates to construction machinery production technical field, especially a kind of bearing pin for hinged component in relative rotation.
Background technique
The apparatus for work of engineering machinery, the steering gear etc. are all kinds of has component in relative rotation, and it is hinged by bearing pin that its Placement mostly is; Because the load of engineering machinery is generally all larger, its bearing pin wearing and tearing are very fast, must often carry out pressure lubrication, and the use amount of lubricant oil is very large, and cost is higher.Particularly, under hot environment, lubricant oil is sintered into piece fast, has had a strong impact on working performance and the life-span of machine; At present, have a kind of non-maintaining mode, which is that the axle sleeve plug-in mounting with selflubricating is entered in pin-and-hole to improve the working life of bearing pin.In use there is following deficiency in this mode: when self lubrication bearing wearing and tearing or selflubricating inefficacy, self lubrication bearing need to be split out to replacing in pin-and-hole, labor intensity is large, and dismounting can affect the dimensional accuracy of pin-and-hole by force, and maintenance cost also increases.
Summary of the invention
The purpose of this utility model is to provide a kind of non-maintaining bearing pin, and it can solve the high problem of maintenance cost Yamato work cost of existing bearing pin.
In order to address the above problem, the technical solution adopted in the utility model is: this bearing pin comprises mandrel, and described mandrel is coated with self lubrication bearing, at the two ends of described self lubrication bearing, is respectively equipped with the first positioning element and the second positioning element on described mandrel.
In technique scheme, more specifically scheme can also be: described the first positioning element and the second positioning element are respectively the first positioning shaft sleeve and the second positioning shaft sleeve, and described the first positioning shaft sleeve is interference fit with described the second positioning shaft sleeve with described mandrel and is connected.
Further: described the first positioning element is the location shaft shoulder being arranged on described mandrel, and described mandrel is socketed with pin plate in the end that is provided with the described location shaft shoulder, this pin plate butt is to the end face of the described location shaft shoulder; Described the second positioning element is the second positioning shaft sleeve, and this second positioning shaft sleeve is that interference fit is connected with described mandrel.
Further: on the barrel of described self lubrication bearing, to be distributed with a plurality of through holes, described in each, in through hole, to be equipped with the self lubrication part of being made by graphite.
Owing to having adopted technique scheme, compared with prior art, the beneficial effect having is the utility model:
1, on bearing pin, by interference fit, be coated with a self lubrication bearing, during use, self lubrication bearing draws in the rotation section of articulated section, and the rotation of component is played to good lubrication, non-maintaining;
2, because self lubrication bearing is to be sleeved on bearing pin, convenient for assembly and dismounting;
3, change accessory conveniently, expense is low, has reduced labor intensity.
Accompanying drawing explanation
Fig. 1 is the utility model the first embodiment's structural perspective.
Fig. 2 is the assembling schematic diagram of Fig. 1.
Fig. 3 is the utility model the second embodiment's structural perspective.
Fig. 4 is the assembling schematic diagram of Fig. 3.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
The first embodiment:
Bearing pin shown in Fig. 1, Fig. 2, mandrel 2 is coated with self lubrication bearing 3, at the two ends of self lubrication bearing 3, on mandrel 2, be respectively equipped with the first positioning shaft sleeve 1 and the second positioning shaft sleeve 4, the first positioning shaft sleeve 1 and the second positioning shaft sleeve 4 are common axle sleeve, and the first positioning shaft sleeve 1 is interference fit with the second positioning shaft sleeve 4 with mandrel 2 and is connected.On the barrel of self lubrication bearing 3, be distributed with a plurality of through holes, in each through hole, be all embedded with graphite for selflubricating.During use, component are hinged by bearing pin in relative rotation, and now the rotation section of self lubrication bearing 3 in hinge point, plays good lubrication to the rotation of component, and non-maintaining.
The second embodiment:
Bearing pin shown in Fig. 3 and Fig. 4, the first positioning element is the location shaft shoulder 6 being arranged on mandrel 2, this location shaft shoulder and mandrel 2 links are integrated, mandrel 2 is socketed with pin plate 5 in the end that is provided with the location shaft shoulder 6, these pin plate 5 butts are to the exterior edge face of locating the shaft shoulder 6, mandrel 2 is coated with self lubrication bearing 3, and one end of self lubrication bearing 3 is connected to the shaft shoulder 6 lower end surfaces, location, and the other end of self lubrication bearing 3 and the second positioning shaft sleeve 4 connect; The second positioning shaft sleeve 4 is common axle sleeve, and is connected for interference fit with mandrel 2.On the barrel of self lubrication bearing 3, be distributed with a plurality of through holes, in each through hole, be all embedded with graphite for selflubricating.During use, component are hinged by bearing pin in relative rotation, and now the rotation section of self lubrication bearing 3 in hinge point, plays good lubrication to the rotation of component, and non-maintaining.
Claims (4)
1. a bearing pin, comprises mandrel (2), it is characterized in that: described mandrel (2) is coated with self lubrication bearing (3), at the two ends of described self lubrication bearing (3), is respectively equipped with the first positioning element and the second positioning element on described mandrel (2).
2. bearing pin according to claim 1, it is characterized in that: described the first positioning element and described the second positioning element are respectively the first positioning shaft sleeve (1) and the second positioning shaft sleeve (4), described the first positioning shaft sleeve (1) is interference fit with described the second positioning shaft sleeve (4) with described mandrel (2) and is connected.
3. bearing pin according to claim 1, it is characterized in that: described the first positioning element is for being arranged on the location shaft shoulder (6) on described mandrel (2), described mandrel (2) is socketed with pin plate (5) in the end that is provided with the described location shaft shoulder (6), and this pin plate (5) butt is to the end face of the described location shaft shoulder; Described the second positioning element is the second positioning shaft sleeve (4), and this second positioning shaft sleeve and described mandrel (2) are connected for interference fit.
4. according to the bearing pin described in claim 1 or 2 or 3, it is characterized in that: on the barrel of described self lubrication bearing (3), be distributed with a plurality of through holes, described in each, in through hole, be equipped with the self lubrication part of being made by graphite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489066.2U CN203453229U (en) | 2013-08-12 | 2013-08-12 | Pin shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320489066.2U CN203453229U (en) | 2013-08-12 | 2013-08-12 | Pin shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203453229U true CN203453229U (en) | 2014-02-26 |
Family
ID=50133108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320489066.2U Expired - Lifetime CN203453229U (en) | 2013-08-12 | 2013-08-12 | Pin shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203453229U (en) |
-
2013
- 2013-08-12 CN CN201320489066.2U patent/CN203453229U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140226 |
|
| CX01 | Expiry of patent term |