CN210190163U - Clutch type rotary sealing mechanism with spiral compression - Google Patents
Clutch type rotary sealing mechanism with spiral compression Download PDFInfo
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- CN210190163U CN210190163U CN201920878805.4U CN201920878805U CN210190163U CN 210190163 U CN210190163 U CN 210190163U CN 201920878805 U CN201920878805 U CN 201920878805U CN 210190163 U CN210190163 U CN 210190163U
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Abstract
The utility model discloses a clutch type rotary sealing mechanism with spiral compression, which is used for sealing a rotary barrel, wherein the rear end of the rotary barrel is provided with a central barrel which is coaxial with the rotary barrel and integrally revolves, the rotary sealing mechanism comprises a rotary sealing cover, the outer cylindrical surface of the central barrel is provided with an external thread, and the rotary sealing cover is provided with a nut matched with the external thread; the mechanism also comprises a moving mechanism and a clutch mechanism; the clutch mechanism comprises a first component, a second component and a third component, wherein the first component and the second component are arranged on the rotary sealing cover, and the third component is arranged on the movable frame body and is positioned between the first component and the second component; the first member and the third member form an engagement assembly, and the third member is also used for pulling the second member backwards when acting with the moving frame body. The utility model discloses a screw mechanism drive gyration seals lid switch, and the telescoping cylinder only intervenes when the switch, has sealed effectual, the telescoping cylinder wearing and tearing are little and need not gyration strutting arrangement's advantage.
Description
Technical Field
The utility model relates to a be used for the sealed of concrete mixer agitator, also can be used to the rotary seal of other similar occasions.
Background
At present, the mixer truck is mainly open, and the problems that the mixer truck is poor in weather resistance, cannot meet the requirement of concrete quality, seriously influences the forward development of the concrete quality and cannot meet the requirements of energy-saving and green construction exist. In order to solve the problems, the field provides a mixer truck with a rotary seal, wherein a hollow shaft type rotary seal structure (refer to the invention patent with the application number of CN201710753539.8 and the publication number of 2017.11.14) is a representative one, and a seal cover for plugging a mixing drum is changed into a rotatable form to rotate along with the mixing drum, so that the rotary radius of a dynamic seal is greatly reduced, the relative linear velocity of a seal part is reduced, the sealing effect is good, the abrasion is small, the reliability is high, and the maintenance difficulty is low.
However, the hollow shaft rotary seal in the prior art is pressed by a hydraulic cylinder or an air cylinder, and the problems are that: 1. the hydraulic (air) cylinder needs to be pressed all the time during operation, and as the stirring barrel rotates continuously, the vehicle travels to generate larger axial and radial force, so that the cylinder rod continuously goes in and out and swings, and the abrasion is larger after the time is long; 2. for the air cylinder, the pressure is low, the pressure requirement of rotary sealing cannot be met, and the sealing effect is poor; 3. the rotary support is needed, the rotary support is heavy, the destructive force generated by rotation and bumping of the stirring barrel cannot be offset, the rotary support device is seriously abraded, and the service life is short.
SUMMERY OF THE UTILITY MODEL
The utility model provides a separation and reunion formula rotary seal mechanism that spiral compresses tightly, its purpose: (1) reducing wear of the hydraulic/cylinder components; (2) the sealing effect is improved; (3) reducing wear of the slewing bearing device; (4) the weight of the device is reduced; (5) the energy consumption is reduced; (6) the cost of the device is reduced.
The utility model discloses technical scheme as follows:
the utility model provides a separation and reunion formula rotary sealing mechanism that spiral compresses tightly for the sealing of rotatory bucket, rotatory bucket is installed in the frame, and is turned round under rotary drive device's drive, the rear end of rotatory bucket is installed rather than coaxial center section of thick bamboo, center section of thick bamboo and the integrative gyration of rotatory bucket, rotary sealing mechanism includes the sealed lid of gyration, the sealed lid center department of gyration is equipped with the through-hole and adorns on a center section of thick bamboo through this through-hole cover, the outward flange department of the sealed lid of gyration be equipped with be used for with the first sealing device that the rear end edge of rotatory bucket contacted, its characterized in that: an external thread is arranged on the outer cylindrical surface of the central cylinder, and a nut matched with the external thread is arranged at the through hole of the rotary sealing cover;
the rotary sealing mechanism further comprises a moving mechanism and a clutch mechanism;
the moving mechanism comprises a moving frame body and a moving driving mechanism for driving the moving frame body to move relative to the rack;
the clutch mechanism comprises a first component, a second component and a third component, wherein the first component and the second component are arranged on the rotary sealing cover, and the third component is arranged on the movable frame body and is positioned between the first component and the second component; the first member and the third member form an engagement assembly, and the third member is also used for pulling the second member backwards when acting with the moving frame body.
As a further improvement of the mechanism: the first and third members are intermeshed toothed discs or pressure plates.
As a further improvement of the mechanism: the first part is a front fluted disc arranged at the rear part of the rotary sealing cover, the third part is a rear fluted disc arranged on the movable frame body through a clutch sleeve, the second part is a clutch disc arranged at the rear part of the rotary sealing cover, the clutch disc is positioned behind the front fluted disc and spaced from the front fluted disc, the clutch sleeve is sleeved outside the clutch disc, and the rear fluted disc is positioned between the front fluted disc and the clutch disc.
As a further improvement of the mechanism: the utility model discloses a rotary sealing cover, including first part, third part, the first part is installed at the sealed preceding dental lamina at lid rear portion of gyration, the third part is through colluding the back dental lamina of board installation on removing the support body, it moves towards the setting for the front and back to collude the board, the second part is the stores pylon of installing at the sealed lid rear portion of gyration, the stores pylon is the door font, has two sets of longitudinal bars and the horizontal pole that both ends are connected with two longitudinal bar rear ends respectively that move towards around, the front end of longitudinal bar is connected with the sealed rear portion of lid of gyration, collude the board and be used for contacting in order to prevent the sealed rotation of lid of gyration with the stores pylon.
As a further improvement of the mechanism: the movable support body is used for supporting the movable support body to move.
As a further improvement of the mechanism: the movable bearing mechanism comprises a rail and a wheel carrier which runs on the rail, and the wheel carrier is arranged on the movable frame body.
As a further improvement of the mechanism: the pressure sensor is used for detecting the pressure between the movable frame body and the movable bearing mechanism.
As a further improvement of the mechanism: the rotary barrel is a stirring barrel on the stirring truck, the frame is a main frame of the stirring truck, the central barrel is a central charging barrel on the stirring barrel, the movable frame body is a cross beam, and the movable driving mechanism is a telescopic cylinder.
As a further improvement of the mechanism: the nut further comprises a second sealing device arranged at the front end of the nut, and the second sealing device is in contact with the external thread.
As a further improvement of the mechanism: still install the feeder hopper on the crossbeam, the discharge end of feeder hopper is connected with a feeding section of thick bamboo, a feeding section of thick bamboo stretches into in the central feed cylinder, rotary seal mechanism is still including setting up the third sealing device between a feeding section of thick bamboo and central feed cylinder.
Compared with the prior art, the utility model discloses following positive effect has: (1) the utility model realizes the opening and closing of the rotary sealing cover by the screw mechanism with the help of the rotary power of the stirring barrel, and has large sealing pressing force and good effect; (2) the hydraulic cylinder or the air cylinder is used as a movement driving mechanism and is only involved when the cover is opened and closed, and the telescopic cylinder is in a non-working state when the mixer truck normally runs, so that the mixer truck is not easy to wear and has long service life; (3) the rotary sealing cover is directly sleeved on the central charging barrel, a rotary supporting device is not needed, the weight of the device is reduced, the cost is reduced, and the later maintenance amount is reduced; (4) the clutch mechanism can prevent the rotary sealing cover from rotating when the cover is opened and closed, and can complete the action of opening and closing the cover by matching with the thread mechanism, and can push/pull the rotary sealing cover to be close to or far away from the external thread by matching with the moving mechanism, so that the stroke of the thread part is shortened, the efficiency of opening and closing the cover is improved, the cost is reduced, the weight is lightened, the energy consumption is reduced, and the structure is more compact; (5) the device is matched with a pressure sensor and a controller, so that the mechanical and automatic operation is convenient to realize.
Drawings
Fig. 1 is a schematic structural diagram of the first embodiment.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
FIG. 3 is a schematic structural view of a rotary seal cover and a clutch mechanism portion when the front tooth plate and the rear tooth plate are engaged according to the second embodiment.
FIG. 4 is a schematic structural view of a rotary seal cover and a clutch mechanism portion after the front dental plate and the rear dental plate are disengaged according to the second embodiment.
Fig. 5 is a schematic structural diagram of the pressure sensor arranged on the track.
Fig. 6 is a schematic structural view of the pressure sensor disposed on the cross beam.
Detailed Description
The technical scheme of the utility model is explained in detail below with the attached drawings:
the utility model provides a separation and reunion formula rotary sealing mechanism that spiral compressed tightly for the sealing of rotatory bucket, rotatory bucket is installed in the frame, and is turned round under rotary drive device's drive, the rear end of rotatory bucket is installed rather than coaxial center section of thick bamboo, center section of thick bamboo and the integrative gyration of rotatory bucket, rotary sealing mechanism is including being used for sealing the sealed lid of gyration of rotatory bucket rear end open-ended, the sealed lid center department of gyration is equipped with the through-hole and adorns on center section of thick bamboo through this through-hole cover, the outward flange department of the sealed lid of gyration be equipped with be used for with the first sealing device that the rear end edge of rotatory bucket contacted.
And an external thread is arranged on the outer cylindrical surface of the central cylinder, and a nut matched with the external thread is arranged at the through hole of the rotary sealing cover.
The rotary sealing mechanism further comprises a moving mechanism and a clutch mechanism.
The moving mechanism comprises a moving frame body and a moving driving mechanism for driving the moving frame body to move relative to the rack.
The clutch mechanism comprises a first component, a second component and a third component, wherein the first component and the second component are arranged on the rotary sealing cover, and the third component is arranged on the movable frame body and is positioned between the first component and the second component; the first member and the third member form an engagement assembly.
The third part is also used for pulling the second part backwards when acting with the movable rack body.
Typically, the first and third members are intermeshed toothed discs or plates.
When the rotary sealing cover is close to the rotary barrel, the first component is meshed with the second component through the moving mechanism, the rotary sealing cover cannot rotate along with the rotary barrel or the central barrel, and can only move back and forth relative to the central barrel under the action of the external threads, so that the rotary sealing cover is opened and closed. When the external thread and the nut are disengaged, the rotary sealing cover is pushed/pulled by the moving mechanism through the clutch mechanism, so that the rotary sealing cover can move quickly.
Example one
Referring to fig. 1 and 2, the rotary seal mechanism in the present embodiment is used for a mixer truck apparatus. Specifically, rotatory bucket is agitator 1 on the trucd mixer, the frame is the main frame of trucd mixer, the center section of thick bamboo is central feed cylinder 2 on the trucd mixer 1, it is crossbeam 6 to remove the support body, it is telescopic cylinder 7 to remove actuating mechanism. The telescopic cylinder 7 can be a hydraulic cylinder, an air cylinder, an electric screw rod or other mechanical or manual devices. The telescopic cylinder 7, in addition to being able to extend and retract to extreme positions, has an intermediate position for some operations requiring the pivoting seal cover to be half-open.
In this embodiment, the first component is a front fluted disc 9 installed at the rear portion of the rotary seal cover 3, the third component is a rear fluted disc 10 installed on the movable frame body through a clutch sleeve 11, the second component is a clutch disc 12 installed at the rear portion of the rotary seal cover 3 through a cylindrical component, the clutch disc 12 is located behind the front fluted disc 9 and spaced from the front fluted disc 9, the clutch sleeve 11 is sleeved outside the clutch disc 12, and the rear fluted disc 10 is located between the front fluted disc 9 and the clutch disc 12.
The toothed disc may be partial or complete. The clutch sleeve 11 may be cylindrical or frame-type and includes several upright columns with toothed plates or toothed discs and transverse rings to connect the upright columns.
When the rotary sealing cover 3 is closed, the telescopic cylinder 7 contracts, the rear fluted disc 10 moves forwards along with the cross beam 6 and is meshed with the front fluted disc 9, then the rotary sealing cover 3 is continuously pushed to move forwards to enable the nut 3-1 to be contacted with the external thread 2-1, then the stirring barrel 1 and the central charging barrel 2 start to rotate, and the rotary sealing cover 3 cannot rotate due to the meshing of the fluted discs, so that the rotary sealing cover 3 moves forwards under the action of the thread mechanism until the first sealing device 4 is pressed tightly, and the closing action is completed. After the stirring device is closed, the telescopic cylinder 7 extends to the middle position, the fluted disc is disengaged, the rotary sealing cover 3 starts to rotate along with the stirring barrel 1, and then the telescopic cylinder 7 releases pressure and is in a non-stressed state, so that the abrasion and the energy consumption are reduced.
When the rotary sealing cover 3 is opened, the telescopic cylinder 7 contracts firstly, the rear fluted disc 10 moves forwards along with the cross beam 6 and is meshed with the front fluted disc 9, then the stirring barrel 1 and the central charging barrel 2 start to rotate reversely, the rotary sealing cover 3 cannot rotate, and therefore the rear fluted disc 10 moves backwards under the action of the thread mechanism, the rotary sealing cover 3 is opened gradually, the telescopic cylinder 7 can extend along with the rotary sealing cover in the process, when the nut 3-1 is disengaged from the external thread 2-1, the rear fluted disc 10 is disengaged from the front fluted disc 9, the telescopic cylinder 7 extends again, the rear fluted disc 10 is disengaged from the front fluted disc 9, the rear fluted disc 10 moves backwards and is contacted with the clutch disc 12, the rotary sealing cover 3 is pushed to move backwards to the limit position, and the rotary sealing cover 3 is opened completely.
Further, in order to avoid abrasion of the telescopic cylinder 7, the mechanism further comprises a movable bearing mechanism for supporting the movable frame body to move.
As shown in fig. 5 and 6, the moving and carrying mechanism includes a rail 19 and a wheel frame 18 running on the rail 19, and the wheel frame 18 is mounted on the moving frame body.
Further, the mechanism further comprises a pressure sensor 20 for detecting the pressure between the moving frame and the moving bearing mechanism, and the pressure sensor 20 may be mounted on the rail 19 as shown in fig. 5, or may be disposed on the cross beam 6 as shown in fig. 6.
When the rotary sealing cover 3 is closed, the torque borne by the rotary sealing cover 3 can be monitored through the pressure sensor 20, whether the rotary sealing cover is pressed or not is deduced, and when the pressure value is larger than a set value, the telescopic cylinder 7 is controlled to extend, so that the fluted disc is separated.
When the pressure sensor 20 is disposed on the rail 19, the rail 19 may be hinged at the rear end to the frame and connected at the front end to the frame by a spring so as to transmit the pressure value to the sensor. A cover plate can be arranged at the front part of the track 19, the pressure sensor 20 is arranged below the cover plate, when the sensor works, the cover plate is compressed, when the vehicle runs, the telescopic cylinder 7 is positioned at the middle position, the wheel frame 18 is positioned at the middle rear part of the track 19, the cover plate is not compressed, even if the vehicle bumps, the pressure sensor 20 can be protected from extra impact, and the service life of the vehicle and the reliability of the whole system are improved.
The mechanism further comprises a second sealing device 8 arranged at the front end of the nut 3-1, and the second sealing device 8 is in contact with the external thread 2-1.
As a mixer truck, the cross beam 6 is further provided with a feed hopper 5, the discharge end of the feed hopper 5 is connected with a feed cylinder 5-1, the feed cylinder 5-1 extends into the central feed cylinder 2, and the rotary sealing mechanism further comprises a third sealing device 13 arranged between the feed cylinder 5-1 and the central feed cylinder 2.
Example two
As shown in fig. 3 and 4, the main difference between the present embodiment and the first embodiment is that the clutch mechanism portion: the first part is the preceding dental lamina 14 of installing at the sealed lid 3 rear portion of gyration, the third part is through colluding board 17 and installing back dental lamina 15 on removing the support body, collude board 17 and move towards the setting for the front and back, the second part is the stores pylon 16 of installing at the sealed lid 3 rear portion of gyration, stores pylon 16 is door font or domes, has two sets of longitudinal bars and the horizontal pole that both ends are connected with two longitudinal bar rear ends respectively that move towards around, the front end of longitudinal bar is connected with the rear portion of the sealed lid 3 of gyration, collude board 17 and be used for contacting in order to prevent the sealed lid 3 rotation of gyration with stores pylon 16, collude board 17 and back dental lamina 15 still are used for pulling stores pylon 16 backward.
The telescopic cylinder 7 has an intermediate position in addition to being able to extend and retract to the extreme positions.
When the rotary sealing cover 3 is opened, the telescopic cylinder 7 firstly contracts to the middle position, then the hanging rack 16 touches the hook plate 17 when rotating along with the rotary sealing cover 3 to stop rotating, then the telescopic cylinder 7 contracts, the rear tooth plate 15 moves forwards along with the cross beam 6 and is meshed with the front tooth plate 14, then the stirring barrel 1 and the central charging barrel 2 start to rotate reversely, because the tooth plates are meshed, the rotary sealing cover 3 cannot rotate and can only move backwards under the action of the screw mechanism, the rotary sealing cover 3 is gradually opened, the telescopic cylinder 7 extends under stress in the process, when the nut 3-1 is separated from the external screw 2-1, the telescopic cylinder 7 extends to the limit position again, the rear tooth plate 15 is separated from the front tooth plate 14 and moves backwards to be in contact with the hanging rack 16, the rotary sealing cover 3 is pushed to continuously move backwards to the limit position, and the rotary sealing cover 3 is completely opened.
When the rotary sealing cover 3 is closed, the telescopic cylinder 7 contracts firstly, the rear tooth plate 15 moves forwards along with the cross beam 6 and is meshed with the front tooth plate 14, then the rotary sealing cover 3 is continuously pushed to move forwards to enable the nut 3-1 to be in contact with the external thread 2-1, then the stirring barrel 1 and the central charging barrel 2 start to rotate, and the rotary sealing cover 3 cannot rotate due to the fact that the tooth plates are meshed and can only move forwards under the action of the thread mechanism until the first sealing device 4 compresses tightly, and the closing action is completed. After the closing, the telescopic cylinder 7 extends to the middle position firstly, so that the tooth plates are separated, the rotary sealing cover 3 starts to rotate along with the stirring barrel 1, the hanging rack 16 is separated from the hook plate 17, then the telescopic cylinder 7 extends to the position or the limit position where the hook plate 17 and the hanging rack 16 cannot be contacted, the hook plate 17 and the rear tooth plate 15 are prevented from colliding with the hanging rack 16, and then the telescopic cylinder 7 is decompressed and is in an unstressed state.
Obviously, the above-mentioned clutch mechanism can also change other structural style through the change of shape, position, can only block the sealed lid gyration of gyration through the structure of similar meshing or interlock, make the spiral screw or loosen, realize quick switch lid through push-and-pull action, all be in the scope of protection of the utility model.
The mechanism can also be used in other rotary sealing occasions, and is not described in detail herein.
Claims (10)
1. The utility model provides a separation and reunion formula rotary sealing mechanism that spiral compresses tightly for the sealing of rotatory bucket, rotatory bucket is installed in the frame, and revolves under rotary drive device's drive, the rear end of rotatory bucket is installed rather than coaxial center section of thick bamboo, center section of thick bamboo and the integrative gyration of rotatory bucket, rotary sealing mechanism includes rotary sealing lid (3), rotary sealing lid (3) center department is equipped with the through-hole and adorns on center section of thick bamboo through this through-hole cover, the outward flange department of rotary sealing lid (3) be equipped with be used for with first sealing device (4) that the rear end edge of rotatory bucket contacted, its characterized in that: an external thread (2-1) is arranged on the outer cylindrical surface of the central cylinder, and a nut (3-1) matched with the external thread (2-1) is arranged at the through hole of the rotary sealing cover (3);
the rotary sealing mechanism further comprises a moving mechanism and a clutch mechanism;
the moving mechanism comprises a moving frame body and a moving driving mechanism for driving the moving frame body to move relative to the rack;
the clutch mechanism comprises a first component, a second component and a third component, wherein the first component and the second component are arranged on the rotary sealing cover (3), and the third component is arranged on the movable frame body and is positioned between the first component and the second component; the first member and the third member form an engagement assembly, and the third member is also used for pulling the second member backwards when acting with the moving frame body.
2. The screw-on, compression, clutch-type rotary seal mechanism of claim 1, further comprising: the first and third members are intermeshed toothed discs or pressure plates.
3. The screw-on, compression, clutch-type rotary seal mechanism of claim 1, further comprising: the first part is the preceding fluted disc (9) of installing at sealed lid of gyration (3) rear portion, the third part is through separation and reunion cover (11) install back fluted disc (10) on removing the support body, the second part is clutch disc (12) of installing at sealed lid of gyration (3) rear portion, clutch disc (12) be located the rear of preceding fluted disc (9) and leave the interval between preceding fluted disc (9), separation and reunion cover (11) suit is in the clutch disc (12) outside, and back fluted disc (10) are located between preceding fluted disc (9) and clutch disc (12).
4. The screw-on, compression, clutch-type rotary seal mechanism of claim 1, further comprising: the utility model discloses a rotary rack, including sealed lid (3), first part, second part, stores pylon (16), first part is the preceding dental lamina (14) of installing at the sealed lid of gyration (3) rear portion, the third part is through colluding board (17) and installs back dental lamina (15) on removing the support body, collude board (17) and move towards the setting for the front and back, the second part is the stores pylon (16) of installing at the sealed lid of gyration (3) rear portion, stores pylon (16) is the door font, has two sets of front and back vertical poles that move towards and the horizontal pole that both ends are connected with two vertical pole rear ends respectively, the front end of vertical pole is connected with the rear portion of the sealed lid of gyration (3), collude board (17) and be used for contacting with stores pylon (16) and rotate in order to prevent the sealed lid of gyration (3).
5. The screw-on, compression, clutch-type rotary seal mechanism of claim 1, further comprising: the movable support body is used for supporting the movable support body to move.
6. The screw-on, compression, clutch-type rotary seal mechanism according to claim 5, further comprising: the movable bearing mechanism comprises a track (19) and a wheel carrier (18) walking on the track (19), and the wheel carrier (18) is installed on the movable frame body.
7. The screw-on, compression, clutch-type rotary seal mechanism according to claim 5, further comprising: the pressure sensor (20) is used for detecting the pressure between the movable frame body and the movable bearing mechanism.
8. The screw-on, clutch-type rotary seal mechanism according to any one of claims 1 to 7, further comprising: the rotary drum is a stirring drum (1) on the stirring truck, the frame is a main frame of the stirring truck, the central cylinder is a central cylinder (2) on the stirring drum (1), the movable frame body is a cross beam (6), and the movable driving mechanism is a telescopic cylinder (7).
9. The screw-on, compression, clutch-type rotary seal mechanism of claim 8, wherein: the nut is characterized by further comprising a second sealing device (8) arranged at the front end of the nut (3-1), wherein the second sealing device (8) is in contact with the external thread (2-1).
10. The screw-on, compression, clutch-type rotary seal mechanism of claim 8, wherein: still install feeder hopper (5) on crossbeam (6), the discharge end of feeder hopper (5) is connected with a feeding section of thick bamboo (5-1), a feeding section of thick bamboo (5-1) stretches into in central feed cylinder (2), rotary seal mechanism is still including setting up third sealing device (13) between a feeding section of thick bamboo (5-1) and central feed cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920878805.4U CN210190163U (en) | 2019-06-12 | 2019-06-12 | Clutch type rotary sealing mechanism with spiral compression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920878805.4U CN210190163U (en) | 2019-06-12 | 2019-06-12 | Clutch type rotary sealing mechanism with spiral compression |
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| Publication Number | Publication Date |
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| CN210190163U true CN210190163U (en) | 2020-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920878805.4U Active CN210190163U (en) | 2019-06-12 | 2019-06-12 | Clutch type rotary sealing mechanism with spiral compression |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103339A (en) * | 2019-06-12 | 2019-08-09 | 烟台盛利达工程技术有限公司 | A kind of disengaging type rotary sealing mechanism of spiral compression |
-
2019
- 2019-06-12 CN CN201920878805.4U patent/CN210190163U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103339A (en) * | 2019-06-12 | 2019-08-09 | 烟台盛利达工程技术有限公司 | A kind of disengaging type rotary sealing mechanism of spiral compression |
| WO2020248763A1 (en) * | 2019-06-12 | 2020-12-17 | 烟台盛利达工程技术有限公司 | Screw compression disengaging/engaging rotary sealing mechanism |
| CN110103339B (en) * | 2019-06-12 | 2024-02-20 | 烟台盛利达工程技术有限公司 | Spiral-compressed clutch type rotary sealing mechanism |
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