CN206267217U - The tensioning apparatus of the band PTFE coating of medium-sized excavator - Google Patents
The tensioning apparatus of the band PTFE coating of medium-sized excavator Download PDFInfo
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- CN206267217U CN206267217U CN201621176212.6U CN201621176212U CN206267217U CN 206267217 U CN206267217 U CN 206267217U CN 201621176212 U CN201621176212 U CN 201621176212U CN 206267217 U CN206267217 U CN 206267217U
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- tensioning apparatus
- piston
- cylinder body
- spring
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Abstract
The utility model is related to a kind of tensioning apparatus of the band PTFE coating of medium-sized excavator, the tensioning apparatus of the band PTFE coating of this medium-sized excavator is by tensioning apparatus piston face chromium plating, using brand-new PTFE coating technologies on chromium coating plated surface PTFE coatings, improve the roughness and wearability of piston, with the corrosion resistance of piston, the service life of tensioning apparatus is extended；Dismountable sleeve is additionally provided between spring base and flange outside cylinder body simultaneously, sleeve can play a protective role to spring when in use.
Description
Technical field
The utility model is related to a kind of tensioning apparatus of the band PTFE coating of medium-sized excavator, is mainly used in excavator etc.
In engineering machinery, belong to technical field of engineering machinery.
Background technology
Due to construction machinery industry fast development at home in recent years, country carries forward vigorously construction machinery production industry
Development, simultaneously because China's construction machinery production industry level is more external compared to still relatively backward, Foreign Engineering Machinery giant jail
The handle in jail holds key technology, the development of the domestic manufacture level of containment.With the increase of engineering machinery demand at home, supply
Contradiction is needed progressively to increase.
Wherein excavator has the advantages of tractive force is big, climbing capacity strong, and radius of turn is small, therefore in engineering construction and ore deposit
It is widely used in the exploitation of mountain.And the tensioning apparatus in excavator serves extremely important effect, common excavation
Machine is used as its tensioning apparatus using tensioning screw, and the piston in current tensioning apparatus is easy to wear after long-term use and corruption
Erosion, its service life is not long.
The content of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, there is provided a kind of piston abrasion-proof is strong, is difficult to be corroded, spring
The not tensioning apparatus of the band PTFE coating of the medium-sized excavator of rapid wear.
What the purpose of this utility model was realized in：
A kind of tensioning apparatus of the band PTFE coating of medium-sized excavator, it includes cylinder body, and the cylinder body top is provided with oiling
Valve, the other end of cylinder body is connected with push rod, and the inside of the cylinder body is provided with piston, the piston rod of the piston and the bottom of fuel feeding valve
Portion is connected, and the outer round surface of piston is provided with chromium coating, and the outside of chromium coating is coated with PTFE coatings, outside the inferior part of the cylinder block
Enclose and be provided with spring base, the spring base is provided with spring, be provided with flange at the top of the spring, the spring base and flange are by bullet
Spring is fixed, and is additionally provided with dismountable sleeve, one end of sleeve and spring base outside the cylinder body between spring base and flange
Fixed, the other end is slidably matched with flange.
Compared with prior art, the beneficial effects of the utility model are：
The tensioning apparatus of the band PTFE coating of this medium-sized excavator by tensioning apparatus piston face chromium plating, using complete
New PTFE coating technologies PTFE coatings on chromium coating plated surface, improve the roughness and wearability of piston, and piston
Corrosion resistance, extends the service life of tensioning apparatus；It is additionally provided between spring base and flange outside cylinder body simultaneously removable
The sleeve for unloading, sleeve can play a protective role to spring when in use.
Brief description of the drawings
Fig. 1 is the structural representation of the tensioning apparatus of the band PTFE coating of the utility model medium-sized excavator.
Fig. 2 is the layer structure schematic diagram of piston in Fig. 1.
Wherein：Cylinder body 1, fuel feeding valve 2, piston 3, chromium coating 3.1, PTFE coatings 3.2, spring base 4, spring 5, flange 6, top
Bar 7, sleeve 8.
Specific embodiment
Referring to Fig. 1 and Fig. 2, the utility model is related to a kind of tensioning apparatus of the band PTFE coating of medium-sized excavator, including
Cylinder body 1, the top of the cylinder body 1 is provided with fuel feeding valve 2, and the other end of cylinder body 1 is connected with push rod 7, and piston is provided with the cylinder body 1
3, the outer round surface of the piston 3 is provided with chromium coating 3.1, and the outside of chromium coating 3.1 is plated using brand-new PTFE coating technologies
There are PTFE coatings（Polytetrafluorethylecoatings coatings）3.2, improve the roughness and wearability of piston, and piston corrosion resistance, prolong
The service life of tensioning apparatus is grown, the periphery of the bottom of the cylinder body 1 is provided with spring base 4, and the spring base 4 is provided with spring 5,
The top of the spring 5 is provided with flange 6, and the spring base 4 and flange 6 fix spring 5, in spring base 4 outside the cylinder body 1
Dismountable sleeve 8 is additionally provided with and flange 6 between, one end and the spring base 4 of sleeve 8 are fixed, the other end is slided with flange 6 matches somebody with somebody
Close, sleeve 8 can play a protective role to spring 5 when in use.
Claims (1)
1. the tensioning apparatus of the band PTFE coating of a kind of medium-sized excavator, it is characterised in that：It includes cylinder body（1）, the cylinder body
（1）Top is provided with fuel feeding valve（2）, cylinder body（1）The other end and push rod（7）Connection, the cylinder body（1）Inside be provided with piston
（3）, the piston（3）Piston rod and fuel feeding valve（2）Bottom be connected, piston（3）Outer round surface be provided with chromium coating
（3.1）, and chromium coating（3.1）Outside be coated with PTFE coatings（3.2）, the cylinder body（1）The periphery of bottom is provided with spring base
（4）, the spring base（4）It is provided with spring（5）, the spring（5）Top be provided with flange（6）, the spring base（4）And method
It is blue（6）By spring（5）It is fixed, the cylinder body（1）Outside is in spring base（4）And flange（6）Between be additionally provided with dismountable set
Cylinder（8）, sleeve（8）One end and spring base（4）Fixation, the other end and flange（6）It is slidably matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621176212.6U CN206267217U (en) | 2016-11-03 | 2016-11-03 | The tensioning apparatus of the band PTFE coating of medium-sized excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621176212.6U CN206267217U (en) | 2016-11-03 | 2016-11-03 | The tensioning apparatus of the band PTFE coating of medium-sized excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206267217U true CN206267217U (en) | 2017-06-20 |
Family
ID=59038349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621176212.6U Active CN206267217U (en) | 2016-11-03 | 2016-11-03 | The tensioning apparatus of the band PTFE coating of medium-sized excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206267217U (en) |
-
2016
- 2016-11-03 CN CN201621176212.6U patent/CN206267217U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee after: Jiangsu Changling hydraulic Limited by Share Ltd Address before: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee before: Jiangyin Changling Machinery Manufacturing Co., Ltd. |