CN202201078U - Caterpillar band assembly - Google Patents
Caterpillar band assembly Download PDFInfo
- Publication number
- CN202201078U CN202201078U CN2011202424838U CN201120242483U CN202201078U CN 202201078 U CN202201078 U CN 202201078U CN 2011202424838 U CN2011202424838 U CN 2011202424838U CN 201120242483 U CN201120242483 U CN 201120242483U CN 202201078 U CN202201078 U CN 202201078U
- Authority
- CN
- China
- Prior art keywords
- caterpillar
- pin
- track section
- guide
- bearing pin
- 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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- Mechanical Sealing (AREA)
Abstract
The utility model discloses a caterpillar band assembly, which comprises a caterpillar track section, a shaft sleeve, a pin shaft, sealing rings, a caterpillar band plate, bolts and nuts, wherein the caterpillar band plate is fixed on the caterpillar track section through the bolts and the nuts; the pin shaft and a pin sleeve are in interference fit with the caterpillar track section; the caterpillar track section is fixed at the two ends of the assembly through the pin shaft and the pin sleeve; a gap into which lubricating grease is filled is formed between the pin shaft and the pin sleeve; and each sealing ring is compressed in a counter bore of the caterpillar track section through the pin sleeve and the caterpillar track section and is a rubber sealing ring with an M-shaped cross section. The caterpillar band assembly uses the sealing rings and has a good sealing effect, external water or silt cannot enter the gap between the pin shaft and the pin sleeve, and the lubricating grease is filled between the pin shaft and the pin sleeve, so that the abrasion possibility is reduced, the service life of the caterpillar assembly is prolonged, the replacement or maintenance frequency is reduced, and the using cost is reduced.
Description
Technical field
The utility model relates to the bulldozer field, relates in particular to a kind of track rail assembly of bulldozer.
Background technology
Existing bulldozer in the fish pond, places such as seabeach and coal yard use, bearing pin guide severe wear often appears in the track rail assembly of bulldozer, causes the chain rail to elongate, even the phenomenon that guide grinds fully occurs.The root that produces above problem is that the hermetically-sealed construction of crawler belt is unreasonable.Existing hermetically-sealed construction is a dish spring hermetically-sealed construction, and promptly two dish springs are anchored to together relatively, relies on side seal compressed together.Because the ambient moisture content such as fish pond, seabeach and coal yard and the grains of sand etc. are many; Cause the dish spring corrosion of steel structure serious, after work a period of time, can't play sealing effectiveness; The grains of sand etc. get into the gap between the bearing pin guide; In the engineering of crawler belt work, the grains of sand etc. play the effect of abrasive material, and the wearing and tearing of bearing pin guide are serious further.Therefore in the fish pond, the crawler belt hermetically-sealed construction that uses of places such as seabeach and coal yard is most important.
Summary of the invention
The purpose of the utility model provides the track rail assembly of a kind of rational in infrastructure, dependable performance, long service life.
The purpose of the utility model realizes as follows: this track rail assembly comprises chain rail joint, axle sleeve, bearing pin, seal ring, caterpillar block, screw bolt and nut; Caterpillar block is fixed on the chain rail joint through screw bolt and nut; Between bearing pin and chain rail joint and guide and the chain rail joint is interference fit, and chain rail joint is fixed on two ends by bearing pin and guide, and the gap that charges into lubricating grease is set between bearing pin and the guide; Seal ring is compressed in the chain rail joint counterbore by guide and chain rail joint; Seal ring seals, and prevents the leakage of in-to-in lubricating grease, prevents that also extraneous water or silt etc. from getting between bearing pin and the guide.
Seal ring is a rubber seal, has good rebound resilience, resistance to abrasion and resistance to aging, and discord water attack, and sealing effectiveness is good.
The seal ring cross section is a M shape.
The utility model is to use the track rail assembly of seal ring, good sealing effect, and outer water or silt can't get into the space between the bearing pin guide; Between the bearing pin guide grease lubrication is arranged, reduce wearing and tearing, prolong the service life of track rail assembly; Reduce replacing or maintenance times, reduced use cost.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is an A-A cutaway view among Fig. 1.
The specific embodiment
Like Fig. 1, shown in Figure 2; The utility model track rail assembly comprises chain rail joint 1, caterpillar block 2, bolt 3, nut 4, guide 5, bearing pin 6 and seal ring 7; It is interference fit that guide 5 saves 1 macropore with the chain rail; It is interference fit that bearing pin 6 saves 1 aperture with the chain rail, and chain rail joint 1 tightly is fixed on two ends by bearing pin 6 and guide 5.Caterpillar block 2 is fixed on the chain rail joint 1 through bolt 3 and nut 4.Be free-running fit between guide 5 and the bearing pin 6; Lubricating grease is housed between the two; Seal ring 7 is the rubber seal of M shape for the cross section; Be compressed in by chain rail joint 1 and guide 5 in the counterbore of chain rail joint 1 and seal, prevent that the in-to-in lubricating grease from revealing, prevent that also extraneous water or silt etc. from getting between bearing pin 6 and the guide 5.
Claims (3)
1. track rail assembly; Comprise chain rail joint, axle sleeve, bearing pin, seal ring, caterpillar block, screw bolt and nut; Caterpillar block is fixed on the chain rail joint through screw bolt and nut, is interference fit between bearing pin and chain rail joint and guide and the chain rail joint, and chain rail joint is fixed on two ends by bearing pin and guide; It is characterized in that: the gap that charges into lubricating grease is set between bearing pin (6) and the guide (5), and seal ring (7) is compressed in the counterbore of chain rail joint (1) by guide (5) and chain rail joint (1).
2. track rail assembly according to claim 1 is characterized in that: seal ring (7) is a rubber seal.
3. track rail assembly according to claim 1 and 2 is characterized in that: the cross section of seal ring (7) is a M shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202424838U CN202201078U (en) | 2011-07-11 | 2011-07-11 | Caterpillar band assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202424838U CN202201078U (en) | 2011-07-11 | 2011-07-11 | Caterpillar band assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202201078U true CN202201078U (en) | 2012-04-25 |
Family
ID=45965214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202424838U Expired - Fee Related CN202201078U (en) | 2011-07-11 | 2011-07-11 | Caterpillar band assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202201078U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481962A (en) * | 2013-09-24 | 2014-01-01 | 昆山凯诺尔金属制品有限公司 | Caterpillar link assembly part |
| CN110271618A (en) * | 2019-07-26 | 2019-09-24 | 三一重机有限公司 | Crawler belt assembly unit and track rail assembly |
-
2011
- 2011-07-11 CN CN2011202424838U patent/CN202201078U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103481962A (en) * | 2013-09-24 | 2014-01-01 | 昆山凯诺尔金属制品有限公司 | Caterpillar link assembly part |
| CN110271618A (en) * | 2019-07-26 | 2019-09-24 | 三一重机有限公司 | Crawler belt assembly unit and track rail assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20160711 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |