CN215830803U - Built-in guide vane rotating angle indicating device of centrifugal refrigeration compressor - Google Patents
Built-in guide vane rotating angle indicating device of centrifugal refrigeration compressor Download PDFInfo
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- CN215830803U CN215830803U CN202121466369.3U CN202121466369U CN215830803U CN 215830803 U CN215830803 U CN 215830803U CN 202121466369 U CN202121466369 U CN 202121466369U CN 215830803 U CN215830803 U CN 215830803U
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Abstract
The utility model relates to a built-in guide vane rotation angle indicating device of a centrifugal refrigeration compressor, which comprises: the refrigeration compressor comprises a refrigeration compressor shell, wherein a guide vane is connected in the refrigeration compressor shell through a vane bearing seat; the shell of the refrigeration compressor is connected with a pointer rod through a bearing; one end of the pointer rod extends to the outer side of the refrigeration compressor shell, the other end of the pointer rod extends into the refrigeration compressor shell and is connected with one end of the guide vane, and the outer end of the pointer rod is connected with the pointer. The utility model has simple structure, less easily-damaged parts, built-in structure of the whole structure, full utilization of the inner space of the shell and no need of additional development of external placing space.
Description
Technical Field
The utility model relates to the field of centrifugal refrigeration compressors, in particular to a built-in guide vane rotating angle indicating device of a centrifugal refrigeration compressor.
Background
With the rapid development of the compressor industry, the performance requirements of the compressor in all aspects are higher and higher. The guide vane opening degree is an important parameter in the operation of the centrifugal compressor, and the guide vane rotating angle indicating device is used as an important display output functional part and has a visible importance in the area of the centrifugal refrigeration compressor.
At present, a guide vane rotating angle indicating device is required to be arranged in a centrifugal refrigeration compressor area, the opening condition of a guide vane can be observed on site through the device, the important functions of feedback and monitoring are achieved, and therefore the centrifugal refrigeration compressor area is widely concerned.
In the prior art, external form feedback signals such as a liquid crystal display and magnet conduction are commonly used, so that the installation is complex, a plurality of easily damaged parts are needed, the overhaul is difficult, the precision cannot be ensured, and the risk of signal delay exists; such operations are not only cumbersome, but also can seriously affect the operation efficiency of the whole machine and the whole process.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the problems in the prior art, the utility model provides a built-in guide vane rotation angle indicating device of a centrifugal refrigeration compressor, which has the characteristics of equipment integration, small occupied space, simple structure, direct feedback and high precision.
(II) technical scheme
In order to achieve the purpose, the utility model adopts the main technical scheme that:
an internal guide vane rotation angle indicator for a centrifugal refrigeration compressor, comprising: the refrigeration compressor comprises a refrigeration compressor shell, wherein a guide vane is connected in the refrigeration compressor shell through a vane bearing seat and can rotate relative to the refrigeration compressor shell; the refrigeration compressor shell is connected with a pointer rod through a bearing, and the pointer rod can rotate relative to the refrigeration compressor shell; one end of the pointer rod extends to the outer side of the refrigeration compressor shell, the other end of the pointer rod extends into the refrigeration compressor shell and is connected with one end of the guide vane, and the outer end of the pointer rod is connected with the pointer.
Furthermore, a circular through hole is formed in the shell of the refrigeration compressor, and the bearing is connected into the circular through hole through a clamp spring.
Furthermore, the pointer is located in the circular through hole, and the circular through hole is connected with a liquid viewing mirror.
Further, the circular through hole is step-shaped.
Further, the pointer is locked with the end part of the pointer rod through a screw.
Furthermore, the shell of the refrigeration compressor is provided with indication scales.
Further, the liquid viewing mirror and the refrigeration compressor shell are in threaded sealing and coated with sealing glue.
(III) advantageous effects
The utility model has the beneficial effects that: the structure is simple, the number of easily-damaged parts is small, the integral structure is a built-in structure, the internal space of the shell is fully utilized, and an external placing space does not need to be additionally developed.
On one hand, the pointer rod and the guide vane are in clearance fit, threads or welding is not needed, the pointer rod and the guide vane are directly connected in a sleeved mode, the rotating angle condition of the guide vane can be fed back in real time without intervals, a new method is not needed for installing redundant auxiliary parts, the working efficiency is improved, the equipment integration is realized, the precision is high, and the reliability is good;
on the other hand, the liquid viewing mirror is connected with the shell through threads and is coated with a sealant, so that the sealing performance of the shell is kept from being damaged, the pointer is protected, dust falling is prevented, the assembly is simple, and the economical efficiency is greatly improved.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
figure 2 is a side view of a structure according to one embodiment of the present invention.
Detailed Description
For the purpose of better explaining the present invention and to facilitate understanding, the present invention will be described in detail by way of specific embodiments with reference to the accompanying drawings.
An example of the present invention is a device for indicating the rotation angle of a built-in guide vane of a centrifugal refrigeration compressor, as shown in fig. 1 and 2, comprising: the compressor comprises a refrigeration compressor shell 1, wherein a guide vane 3 is connected in the refrigeration compressor shell 1 through a vane bearing seat 2, and the guide vane 3 can rotate relative to the refrigeration compressor shell 1; the refrigeration compressor shell 1 is connected with a pointer rod 4 through a bearing 5, and the pointer rod 4 can rotate relative to the refrigeration compressor shell 1; one end of the pointer rod 4 extends to the outer side of the refrigeration compressor shell 1, the other end of the pointer rod 4 extends into the refrigeration compressor shell 1 and is connected with one end of the guide vane 3, the pointer rod and the guide vane are in clearance fit, and only hole positions need to be embedded without thread locking or welding; the outer end of the pointer rod 4 is connected with a pointer 8, and the pointer 8 is locked with the end part of the pointer rod 4 through a screw 7.
Further, in order to facilitate the fixation of the bearing 5, a circular through hole 10 is formed in the refrigeration compressor shell 1, and the bearing 5 is connected into the circular through hole 10 through a snap spring 6; circular through-hole 10 is the step form, and in bearing 5 embedding circular through-hole 10, one side leaned on the step, one side is equipped with jump ring 6 and fixes to realize the purpose of firm bearing 5, the finger rod 4 one end registrates with guide vane 3 simultaneously, and the other end registrates with bearing 5.
Further, in order to prevent the pointer 8 from being interfered by external factors to generate fluctuation, the pointer 8 is positioned in the circular through hole 10, the liquid viewing mirror 9 is connected to the circular through hole 10, the pointer 8 is arranged in an independent closed hole formed by the bearing 5 and the liquid viewing mirror 9, the influence of internal airflow fluctuation is avoided, the interference of the external factors is avoided, and the pointer cannot move back and forth or slide left and right except rotating along with the guide vane 3, so that the angle change condition can be accurately reflected.
Further, for the convenience of observing the angle, be equipped with on the compressor housing 1 and instruct scale 11, instruct scale 11 to be located the side of looking liquid mirror 9, can observe the pointer 8 rotation condition through looking liquid mirror 9, the cooperation instructs scale 11 can read the angle opening angle condition of stator in real time.
In this embodiment, as shown in fig. 2, look liquid mirror 9 and refrigeration compressor casing 1 for thread sealing and scribble sealed glue, it is sealed good, avoid invasion pointer place space such as dust, keep visual scope clear, look liquid mirror 9 for preferred transparent glass material simultaneously, effectively protect pointer 8 to suffer external force scraping damage, indicate scale 11 to be located look liquid mirror 9 side simultaneously, can in time read out corresponding parameter when pointer 8 rotates.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
Claims (7)
1. A built-in guide vane rotation angle indicating device of a centrifugal refrigeration compressor is characterized by comprising: the compressor comprises a refrigeration compressor shell (1), wherein a guide vane (3) is connected in the refrigeration compressor shell (1) through a vane bearing seat (2), and the guide vane (3) can rotate relative to the refrigeration compressor shell (1); the refrigeration compressor shell (1) is connected with a finger needle rod (4) through a bearing (5), and the finger needle rod (4) can rotate relative to the refrigeration compressor shell (1); one end of the pointer rod (4) extends to the outer side of the refrigeration compressor shell (1), the other end of the pointer rod (4) extends into the refrigeration compressor shell (1) and is connected with one end of the guide vane (3), and the outer end of the pointer rod (4) is connected with a pointer (8).
2. The apparatus of claim 1, wherein: a circular through hole (10) is formed in the refrigeration compressor shell (1), and the bearing (5) is connected into the circular through hole (10) through the clamp spring (6).
3. A centrifugal refrigerant compressor in-built vane rotation angle indicator as claimed in claim 2, wherein: the pointer (8) is positioned in the circular through hole (10), and the liquid viewing lens (9) is connected to the circular through hole (10).
4. A centrifugal refrigerant compressor in-built vane rotation angle indicator as claimed in claim 2, wherein: the circular through hole (10) is step-shaped.
5. The apparatus of claim 1, wherein: the pointer (8) is locked with the end part of the pointer rod (4) through a screw (7).
6. The apparatus of claim 1, wherein: the refrigeration compressor shell (1) is provided with indication scales (11).
7. A centrifugal refrigerant compressor in-built vane rotation angle indicator as claimed in claim 3, wherein: the liquid viewing mirror (9) and the refrigeration compressor shell (1) are sealed by threads and coated with a sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121466369.3U CN215830803U (en) | 2021-06-30 | 2021-06-30 | Built-in guide vane rotating angle indicating device of centrifugal refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121466369.3U CN215830803U (en) | 2021-06-30 | 2021-06-30 | Built-in guide vane rotating angle indicating device of centrifugal refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215830803U true CN215830803U (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121466369.3U Active CN215830803U (en) | 2021-06-30 | 2021-06-30 | Built-in guide vane rotating angle indicating device of centrifugal refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215830803U (en) |
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2021
- 2021-06-30 CN CN202121466369.3U patent/CN215830803U/en active Active
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