CN202250698U - Copper bush for idle wheel of air intake regulating device of compressor - Google Patents
Copper bush for idle wheel of air intake regulating device of compressor Download PDFInfo
- Publication number
- CN202250698U CN202250698U CN2011203702351U CN201120370235U CN202250698U CN 202250698 U CN202250698 U CN 202250698U CN 2011203702351 U CN2011203702351 U CN 2011203702351U CN 201120370235 U CN201120370235 U CN 201120370235U CN 202250698 U CN202250698 U CN 202250698U
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- CN
- China
- Prior art keywords
- copper bush
- copper
- copper sheathing
- compressor
- regulating device
- 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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Abstract
The utility model discloses a copper bush for an idle wheel of an air intake regulating device of a compressor, which consists of a copper bush casing pipe and an axle hole, wherein the copper bush casing pipe is made of copper base powder metallurgy material and has a self-lubricating function, the axle hole is arranged in the copper bush casing pipe, and chamfering treatment is performed to the positions of an inner circle and an outer circle of the end surface of the copper bush casing pipe. The copper bush made of copper base powder metallurgy material has a self-lubricating effect in the frequent rotation process, so that the phenomenon that the parts are lack of lubrication during practical using can not happen, and the trouble of adding lubricating substances at ordinary times is overcome.
Description
(1) technical field
The utility model belongs to technical field of refrigeration compressors, and the movable idle pulley that is specifically related to a kind of flexible drawing rope means for adjusting limit of movement of refrigeration compressor air admittance regulation system is used copper sheathing.
(2) background technique
The air inlet adjustment of large-scale refrigeration compressor is also claimed the inlet throttle adjusting, and promptly install adjustment valve on compressor inlet tube is regulated suction pressure through the inlet modulating valve.The reduction of suction pressure directly has influence on Compressor Discharge Pressure, and compressor performance curves is moved down, so the result of inlet adjusting is actually the performance curve that has changed compressor, reaches the purpose of regulating flow.Compare with the outlet throttling method; The better economy that inlet throttle is regulated; According to the interrelated data introduction; Certain compressor is carried out test shows: in changes in flow rate was 60～80% scope, inlet throttle was saved power than outlet throttling and is about 4～5%, so this is a kind of fairly simple and commonly used regulating method.In numerous refrigeration compressor air inlet regulating devices; A kind of air inlet adjustment mechanism of the flexible kind of drive that adopts has the outstanding advantage that adjusting is reliable, rate of fault is low; Because what flexible transmission system adopted is that a kind of using through the Steel Cable of a plurality of guide vanes adjusting driving wheels is used as traction power, can change race and traction drive wheel over to tangent line from the outer circumference of each guide vane driving wheel in order to make Steel Cable, therefore; Must introduce the position at the Steel Cable of each driving wheel a movable idle pulley is set; Movable idle pulley is installed on the fixed base, because the rotation frequency of movable idle pulley, and the influence of factors such as occasion space is installed; The lubrication problem of necessary solution activity idle pulley rotatable parts, the utility model mainly provides a kind of movable idle pulley with self-lubricating function and uses copper sheathing.
(3) summary of the invention
The utility model provides a kind of movable idle pulley of flexible drawing rope means for adjusting limit of movement of refrigeration compressor air admittance regulation system to use copper sheathing, and main technical schemes is following:
A kind of compressor air inlet regulating device idle pulley is used copper sheathing, is made up of copper sheathing sleeve pipe and axis hole.Said copper sheathing sleeve pipe is processed by the copper-base powder metallurgy material, has self-lubricating function, establishes axis hole in the copper sheathing sleeve pipe, and circle all passes through chamfered with the cylindrical place in the end face of copper sheathing sleeve pipe.
During use; The first close installation of whole copper sheathing is in the installation axle hole of idle pulley wheel body; And then copper sheathing is installed on the idle pulley fixed base, air inlet regulating device in actual use, the idle pulley wheel body will be done frequent the rotation with the driving steel wire rope; There is one to relatively rotate process with the stationary axle of idle pulley fixed base; And the copper sheathing that adopts the copper-base powder metallurgy material to process can produce the selflubricating effect in frequent rotation, can not lack lubricated phenomenon by generation part in actual use, has save daily trouble of acquiring greasing substance.
(4) description of drawings
Fig. 1 is the plan view of the utility model
Fig. 2 is the structure sectional view of the utility model
(5) embodiment
Shown in accompanying drawing, the compressor air inlet regulating device idle pulley that the utility model provides is used copper sheathing, is made up of copper sheathing sleeve pipe 1 and axis hole 2.Copper sheathing sleeve pipe 1 is processed by the copper-base powder metallurgy material, has self-lubricating function, is provided with axis hole in the copper sheathing sleeve pipe 1, and circle all passes through chamfered with the cylindrical place in the end face of copper sheathing sleeve pipe 1.During practical application, whole copper sheathing elder generation close installation and then is installed in copper sheathing on the idle pulley fixed base in the installation axle hole of idle pulley wheel body.
Claims (1)
1. a compressor air inlet regulating device idle pulley is used copper sheathing, comprises copper sheathing sleeve pipe and axis hole, it is characterized in that: said copper sheathing sleeve pipe is processed by the copper-base powder metallurgy material, establishes axis hole in the copper sheathing sleeve pipe, and circle all passes through chamfered with the cylindrical place in the end face of copper sheathing sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203702351U CN202250698U (en) | 2011-09-29 | 2011-09-29 | Copper bush for idle wheel of air intake regulating device of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203702351U CN202250698U (en) | 2011-09-29 | 2011-09-29 | Copper bush for idle wheel of air intake regulating device of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250698U true CN202250698U (en) | 2012-05-30 |
Family
ID=46111950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203702351U Expired - Fee Related CN202250698U (en) | 2011-09-29 | 2011-09-29 | Copper bush for idle wheel of air intake regulating device of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250698U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041080A (en) * | 2015-06-04 | 2015-11-11 | 广东顶固集创家居股份有限公司 | Hinge |
-
2011
- 2011-09-29 CN CN2011203702351U patent/CN202250698U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105041080A (en) * | 2015-06-04 | 2015-11-11 | 广东顶固集创家居股份有限公司 | Hinge |
| CN105041080B (en) * | 2015-06-04 | 2018-01-02 | 广东顶固集创家居股份有限公司 | Hinge |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20120929 |