CN217841947U - Safe and stable's compressor gas line clearance adjustment mechanism - Google Patents
Safe and stable's compressor gas line clearance adjustment mechanism Download PDFInfo
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- CN217841947U CN217841947U CN202221680717.1U CN202221680717U CN217841947U CN 217841947 U CN217841947 U CN 217841947U CN 202221680717 U CN202221680717 U CN 202221680717U CN 217841947 U CN217841947 U CN 217841947U
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Abstract
The utility model relates to a compressor technical field provides a safety and stability's compressor gas pipeline clearance adjustment mechanism, including the control tube, install in the blade of control tube, link to each other with driving vane pivoted executor and seal structure, its characterized in that through synchronous drive structure with each blade: the sealing structure comprises a sealing cover and an air bearing seat; the sealing cover surrounds and is fixed outside the adjusting pipe and seals the synchronous transmission structure and the rotating shaft in the cover body; the executor sets up outside the sealed cowling, and the air bearing frame is installed on the sealed cowling, and the connecting axle of executor runs through and stretches into the sealed cowling in-connection synchronous transmission structure behind the air bearing frame, the embedded sealing washer that is equipped with the connecting axle laminating of air bearing frame. The utility model overcomes prior art's is not enough, has solved the higher technical problem of current compressor import clearance adjustment mechanism poor stability, maintenance frequency.
Description
Technical Field
The utility model relates to a compressor technical field, concretely relates to compressor gas pipeline clearance adjustment mechanism of safety and stability.
Background
The utility model patent application with application number CN 2021213976360.1 discloses "a compressor import clearance adjustment mechanism", its transmission shaft has the clearance with the control tube contact site, there is the clearance when this mechanism is applied to some special compressor for the process system, for example, the medium in the process system of compressor contains poisonous and harmful gas composition, these mediums pass through the clearance and leak, if reveal to the atmosphere, then can cause the process gas pollution, harm on-the-spot personnel's health, so the utility model patent that application number is 202121733890.9 provides a sealed cowling, this sealed cowling adds outside compressor import clearance adjustment mechanism, effectively prevent the harmful gas leakage.
However, in the practical application process, the mechanism is found to have poor stability and high maintenance frequency, and the following technical problems mainly exist: the executor operation of adjustment mechanism generates heat, through sealed mounting back of enclosing cover, and the heat is difficult for giving off, has the potential safety hazard, and simultaneously, the connecting axle of executor is changeed and is taken place thermal deformation, blocks easily behind the connecting axle thermal deformation.
Therefore, a safe and stable gas pipeline gap adjusting mechanism of the compressor is provided.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a compressor gas pipeline clearance adjustment mechanism of safety and stability, overcome the not enough of prior art, reasonable in design has solved current compressor import clearance adjustment mechanism poor stability, the higher technical problem of maintenance frequency.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a compressor gas pipeline clearance adjustment mechanism of safety and stability, includes the control tube, rotates through the pivot and installs a plurality of blades in the control tube, the synchronous transmission structure of being connected with each pivot, be connected with the synchronous transmission structure and be used for driving pivot pivoted executor, be used for preventing gas leakage's seal structure, its characterized in that:
the sealing structure comprises a sealing cover and an air bearing seat;
the sealing cover surrounds and is fixed outside the adjusting pipe and seals the synchronous transmission structure and the rotating shaft in the cover body;
the actuator is arranged outside the sealing cover, the air bearing seat is arranged on the sealing cover, and a connecting shaft of the actuator penetrates through the air bearing seat and then extends into the sealing cover to be connected with a synchronous transmission structure;
the air bearing seat is provided with two air guide grooves and three sealing grooves which surround the inner side wall, an air inlet hole communicated with one air guide groove and an air outlet hole communicated with the other air guide groove, one air guide groove is arranged between every two adjacent sealing grooves, and a sealing ring attached to a connecting shaft is embedded in each sealing groove.
Further, the air inlet is connected with an air supply unit through a pipeline, and the air supply unit is used for providing inert gas.
Furthermore, the third radial air holes on the same side are provided with two radial air holes and are arranged in a cross shape.
Furthermore, the sealing ring is provided with two channels and is distributed on the upper side and the lower side of the first air guide groove.
Further, the synchronous transmission structure includes shift fork, driving lever and synchronizer ring, each the tip that the regulating tube was stretched out in the pivot all is connected with the shift fork, the shift fork is equipped with the adjustment tank that sets up along length direction, driving lever and shift fork one-to-one and perpendicular installation are on the synchronizer ring, the tip of driving lever stretches into in the adjustment tank, synchronizer ring cover is located outside the regulating tube and can rotate around the regulating tube, be equipped with on the regulating tube and carry out spacing in order to prevent that the driving lever from breaking away from the limit structure of adjustment tank to the axial position of synchronizer ring.
Furthermore, limit structure includes spacing groove and bearing, and annular spacing groove is seted up in the lateral wall of regulating tube and is set up with the synchronizer ring is coaxial, more than three the bearing is installed on the synchronizer ring and around the regulating tube equipartition, stretching into of bearing the spacing inslot.
Furthermore, a ball head is mounted on the shifting rod and is in contact with the inner side wall of the adjusting groove.
(III) advantageous effects
The utility model provides a compressor gas pipeline clearance adjustment mechanism of safety and stability possesses following beneficial effect:
1. the actuator of the adjusting mechanism is arranged outside the sealing cover, so that heat generated by operation is easy to dissipate, the influence on the connecting shaft is reduced, and potential safety hazards are reduced;
2. the sealing ring in the air bearing seat has a sealing effect to prevent gas leakage, and can absorb the thermal deformation of the connecting shaft to prevent the connecting shaft from being blocked;
3. under the normal working state, the gap between the connecting shaft and the air bearing seat is kept sealed by a sealing ring, inert gas is mainly statically kept in one of the gas guide grooves and is blocked by two sealing rings adjacent to the gas guide groove, and when the sealing rings are worn, the inert gas flows to form a gas film between the air bearing seat and the connecting shaft for compensation sealing so as to prevent gas leakage; through the setting of venthole, can retrieve partial inert gas on the one hand, on the other hand, the inert gas flow in accessible venthole is to whether need to change the sealing washer and effectively judge.
To sum up, the utility model discloses a safety and stability's compressor gas line clearance adjustment mechanism is after above-mentioned improvement, on guaranteeing original sealed effect, preventing the basis of gas medium leakage, mechanism's stability is effectively promoted, and maintenance frequency reduces by a wide margin.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic sectional view of the present invention;
FIG. 3 is a partially enlarged view of the structure at B in FIG. 2;
FIG. 4 is a schematic view of the structure of FIG. 2 at a position partially enlarged;
fig. 5 is a schematic structural view of the present invention, wherein a side plate of the sealing cover is not shown;
fig. 6 is a schematic view of a part a of fig. 5 enlarged.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-6, a safe and stable gas pipeline gap adjusting mechanism for a compressor comprises an adjusting pipe 2, a plurality of blades 16 rotatably mounted in the adjusting pipe 2 through a rotating shaft 11 (the plurality of blades 16 are distributed around the circumferential direction of the inner side wall of the adjusting pipe 2), a synchronous transmission structure connected with each rotating shaft 11, an actuator 1 connected with the synchronous transmission structure and used for driving the rotating shaft 11 to rotate, and a sealing structure used for preventing gas leakage;
the sealing structure comprises a sealing cover 3 and an air bearing seat 7;
the sealing cover 3 surrounds and is fixed outside the adjusting pipe 2 and seals the synchronous transmission structure and the rotating shaft 11 in the cover body, the sealing cover 3 comprises a first end plate 5, a second end plate 6 and a side plate 4, the first end plate 5 and the second end plate 6 are arranged in parallel and are fixedly connected with the adjusting pipe 2, the side plate 4 is connected with the first end plate 5 and the second end plate 6 in a sealing mode, the sealing cover 3 is preferably of an annular structure, in the figure, 8 is an annular connecting plate, the annular connecting plate 8 is fixedly welded with the side plate 4, is locked with the first end plate 5 through bolts, and is additionally provided with a first sealing ring;
the actuator 1 is arranged outside the sealing cover 3, the air bearing seat 7 is arranged on the sealing cover 3, and a connecting shaft 17 of the actuator 1 penetrates through the air bearing seat 7 and then extends into the sealing cover 3 to be connected with a synchronous transmission structure;
the air bearing seat 7 is provided with two air guide grooves 7b and three sealing grooves 7d which surround the inner side wall, an air inlet hole 7a communicated with one air guide groove 7b and an air outlet hole 7c communicated with the other air guide groove 7b, one air guide groove 7b is respectively arranged between the adjacent sealing grooves 7d, and a sealing ring 18 attached to a connecting shaft 17 is embedded in each sealing groove 7 d.
The synchronous transmission structure comprises shifting forks, a shifting rod 13 and a synchronous ring 14, wherein the shifting forks are connected to the end parts of the rotating shafts 11 extending out of the adjusting pipe 2, each shifting fork comprises a first shifting fork 9-1 and a second shifting fork 9-2, the first shifting fork 9-1 and the second shifting fork 9-2 are respectively provided with an adjusting groove 9a arranged along the length direction, the first shifting fork 9-1 is directly connected with the connecting shaft 17, the adjusting grooves 9a are annular closed penetrating grooves to prevent the shifting rod 13 from being separated, the adjusting grooves of the second shifting fork 9-2 are U-shaped penetrating grooves with one ends opened, the shifting rods 13 and the shifting forks are in one-to-one correspondence and are vertically arranged on the synchronous ring 14, the end parts of the shifting rods 13 extend into the adjusting grooves 9a, the synchronous ring 14 is sleeved outside the adjusting pipe 2 and can rotate around the adjusting pipe 2, and a limiting structure for limiting the axial position of the synchronous ring 14 to prevent the shifting rods 13 from being separated from the adjusting grooves 9a is arranged on the adjusting pipe 2. Limiting structure includes spacing groove and bearing 15, and annular spacing groove is seted up and is set up in the lateral wall of regulating pipe 2 and coaxial with synchronizing ring 14, and bearing 15 more than three is installed on synchronizing ring 14 and around the 2 equipartitions of regulating pipe, and stretching into spacing inslot of bearing 15. A ball head 12 is mounted on the shift lever, preferably the ball head 12 is in a running fit with the shift lever and in contact with the inner side wall of the adjustment groove. The utility model patent application with application number CN 20212139788.1, its synchronous drive structure adopt the connecting rod, because of the dead point exists, have certain probability card and die, in case the card drives by force again after dying, the connecting rod will break off, has also led to the higher technical problem of maintenance frequency. In addition, the first shifting fork 9-1 is matched with the corresponding shifting rod to drive the synchronizing ring 14 to rotate, and the synchronizing ring 14 rotates to drive the other shifting rod and the second shifting fork 9-2 to synchronously rotate, so that the synchronism is better, and the locking can be effectively avoided.
In the figure, 10 are the beaded finish, beaded finish 10 cover locate outside the control tube 2 and with control tube 2 fixed connection, be connected with the position sleeve 22 with 11 one-to-one in the pivot on beaded finish 10, control tube 2 is passed to the upper end of pivot 11, connect the shift fork behind the position sleeve 22, on the one hand, accessible position sleeve 22 fixes a position the position mounted position of shift fork, on the other hand, the lateral wall of position sleeve 22 can pass through threaded connection with beaded finish 10, install third sealing washer 23 between the inside wall of position sleeve 22 and the pivot 11, the clearance between pivot 11 and the control tube 2 is sealed to position sleeve 22 bottom, in order to further prevent gas leakage. Wherein, the shift fork includes connecting portion 9b, the regulation main part 9c that sets up the adjustment tank be connected with pivot 11, and threaded connection has jam screw 21 on connecting portion 9 b.
In the figure, 19 is a connecting seat, a connecting seat 19 is arranged between the air bearing seat 7 and the adjusting pipe 2, the connecting seat 19 is used for adapting the radian of the outer side wall of the adjusting pipe 2, and a fourth sealing ring 20 can be additionally arranged between the air bearing seat 7 and the connecting seat 19.
It should be noted that, in this document, the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. The utility model provides a compressor gas pipeline clearance adjustment mechanism of safety and stability, includes the control tube, rotates through the pivot and installs a plurality of blades in the control tube, the synchronous transmission structure of being connected with each pivot, be connected with the synchronous transmission structure and be used for driving pivot pivoted executor, be used for preventing gas leakage's seal structure, its characterized in that:
the sealing structure comprises a sealing cover and an air bearing seat;
the sealing cover surrounds and is fixed outside the adjusting pipe and seals the synchronous transmission structure and the rotating shaft in the cover body;
the actuator is arranged outside the sealing cover, the air bearing seat is arranged on the sealing cover, and a connecting shaft of the actuator penetrates through the air bearing seat and then extends into the sealing cover to be connected with a synchronous transmission structure;
the air bearing seat is provided with two air guide grooves and three sealing grooves which surround the inner side wall, an air inlet hole communicated with one air guide groove and an air outlet hole communicated with the other air guide groove, one air guide groove is arranged between every two adjacent sealing grooves, and a sealing ring attached to a connecting shaft is embedded in each sealing groove.
2. A safe and stable gas line clearance adjustment mechanism for compressors as claimed in claim 1, wherein: the air inlet is connected with the air supply unit through a pipeline.
3. A safe and stable gas line clearance adjustment mechanism for compressors as claimed in claim 1, wherein: the third radial air holes on the same side are provided with two radial air holes which are arranged in a cross shape.
4. A safe and stable compressor gas line clearance adjustment mechanism as set forth in claim 1, wherein: the sealing ring is provided with two channels and is distributed on the upper side and the lower side of the first air guide groove.
5. A safe and stable gas line clearance adjustment mechanism for compressors as claimed in claim 1, wherein: the synchronous transmission structure comprises a shifting fork, a shifting lever and a synchronizing ring, wherein the end part of the rotating shaft, which extends out of the adjusting pipe, is connected with the shifting fork, the shifting fork is provided with an adjusting groove which is arranged along the length direction, the shifting lever and the shifting fork are in one-to-one correspondence and are vertically arranged on the synchronizing ring, the end part of the shifting lever extends into the adjusting groove, the synchronizing ring is sleeved outside the adjusting pipe and can rotate around the adjusting pipe, and the adjusting pipe is provided with a limiting structure which limits the axial position of the synchronizing ring so as to prevent the shifting lever from separating from the adjusting groove.
6. A safe and stable compressor gas line clearance adjustment mechanism as set forth in claim 5, wherein: the limiting structure comprises a limiting groove and a bearing, the annular limiting groove is formed in the outer side wall of the adjusting pipe and is coaxially arranged with the synchronizing ring, more than three bearings are installed on the synchronizing ring and are uniformly distributed around the adjusting pipe, and the bearing stretches into the limiting groove.
7. A safe and stable gas line clearance adjustment mechanism for compressors as claimed in claim 5, wherein: and a ball head is arranged on the shifting rod and is in contact with the inner side wall of the adjusting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221680717.1U CN217841947U (en) | 2022-06-30 | 2022-06-30 | Safe and stable's compressor gas line clearance adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221680717.1U CN217841947U (en) | 2022-06-30 | 2022-06-30 | Safe and stable's compressor gas line clearance adjustment mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217841947U true CN217841947U (en) | 2022-11-18 |
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ID=84035125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221680717.1U Active CN217841947U (en) | 2022-06-30 | 2022-06-30 | Safe and stable's compressor gas line clearance adjustment mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217841947U (en) |
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2022
- 2022-06-30 CN CN202221680717.1U patent/CN217841947U/en active Active
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