CN218658860U - Automatic rotating dismounting device of large multi-cylinder compressor - Google Patents
Automatic rotating dismounting device of large multi-cylinder compressor Download PDFInfo
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- CN218658860U CN218658860U CN202223298949.3U CN202223298949U CN218658860U CN 218658860 U CN218658860 U CN 218658860U CN 202223298949 U CN202223298949 U CN 202223298949U CN 218658860 U CN218658860 U CN 218658860U
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Abstract
The utility model provides a large-scale multi-cylinder compressor autogiration dismouting device, includes the pneumatic cylinder of fixed mounting on high pressure cylinder landing leg, by the rotary platform that rotary platform seat and the gyration strutting arrangement of installing in the rotary platform seat constitute, by the rotary platform removal strutting arrangement and the control system that the telescopic link of installing on the rotary platform base and the gyro wheel of telescopic link lower extreme constitute. When the device is used for dismounting and repairing the high-pressure cylinder, the dismounting platform of the inner shell of the compressor of the high-pressure cylinder is only required to be arranged at a position where the inner shell of the compressor of the high-pressure cylinder can be butted with the dismounting platform of the inner shell of the compressor after the high-pressure cylinder rotates for a certain angle, and the device can be used for repairing the inner shell of the compressor after the high-pressure cylinder rotates for a certain angle on site, so that the interference with a middle pressure cylinder positioned at the rear part of the high-pressure cylinder can be avoided, the middle pressure cylinder and the dismounting platform of the inner shell of the compressor of the high-pressure cylinder do not need to be moved, and the repairing is more convenient; compared with the maintenance by using a large crane for hoisting, the process is simple and the maintenance cost is low.
Description
Technical Field
The utility model relates to a compressor technical field specifically is a large-scale multi-cylinder compressor autogiration dismouting device.
Background
The large compressor unit comprises steam turbine and high, medium and low pressure jar, and wherein the one side of steam turbine is arranged in alone to the low pressure jar, and the opposite side of steam turbine is arranged in to medium pressure jar and high pressure jar, and the adjacent steam turbine of high pressure jar, medium pressure jar follow. When the compressor is maintained, the high-pressure cylinder is positioned between the intermediate-pressure cylinder and the steam turbine, the intermediate-pressure cylinder needs to be moved away firstly when the rotor of the high-pressure cylinder is dismounted, the inner shell dismounting platform of the compressor special for the high-pressure cylinder is mounted at the position of the original intermediate-pressure cylinder, then the rotor positioned in the shell of the high-pressure cylinder can be pulled out for maintenance, and after the maintenance is finished, the inner shell dismounting platform of the compressor special for the high-pressure cylinder is moved away, and the intermediate-pressure cylinder is moved back to the original position again. Because the weight of the intermediate pressure cylinder is more than hundred tons, a large crane is required to be installed when the intermediate pressure cylinder is moved, the use cost of the crane is high, and an enterprise can only use the crane when the equipment is overhauled; the large compressor unit is maintained once after several years, and the utilization rate of a crane is very low; the installation of a large crane has high requirements on the bearing of the wall of a factory building; a large special tool is needed when a large compressor rotor is disassembled; the inner shell dismounting platform of the compressor special for the high-pressure cylinder is required to be mounted at the tail of the high-pressure cylinder to be in butt joint with the high-pressure cylinder after the intermediate pressure cylinder is moved, so that the operation is time-consuming and labor-consuming, the operation is very inconvenient, and the maintenance cost is high. Therefore, how to reduce the maintenance difficulty and the maintenance cost of the large-scale multi-cylinder compressor becomes a difficult problem which is urgently needed to be solved at present.
SUMMERY OF THE UTILITY MODEL
Aiming at the difficult problem which needs to be solved urgently, the utility model provides a large-scale multi-cylinder compressor automatic rotation dismouting device and application method thereof, which can support the high-pressure cylinder on the spot and rotate a certain angle to maintain.
The utility model provides an automatic rotary dismounting device of a large multi-cylinder compressor, which comprises four hydraulic cylinders, a rotary platform, a movable support device and a control system, wherein the four hydraulic cylinders are respectively and fixedly arranged on four support legs of a high-pressure cylinder;
the rotary platform comprises a rotary platform seat and a rotary supporting device; the rotary supporting device comprises a driving mechanism which is arranged in the rotary platform seat and consists of a motor and a speed reducer (or a hydraulic motor) and a supporting plate which is driven by the driving mechanism through a transmission mechanism; the transmission mechanism comprises a bearing consisting of an outer ring, an inner ring, a rolling body and a retainer assembly, the outer ring of the bearing is fixedly arranged at the upper part of the rotary platform seat, the inner ring of the bearing is fixedly connected with the supporting plate, and the inner hole wall of the inner ring of the bearing is provided with transmission teeth which are meshed with a pinion on an output shaft of the speed reducer; the upper surface of the supporting plate is provided with a key which can be matched with the key groove on the bottom surface of the high-pressure cylinder;
the movable supporting device comprises two telescopic rods which are in a group and are respectively arranged at the front part and the rear part of the rotary platform seat, the telescopic rods are arranged at the lower part of a stepped hole of the rotary platform seat and can be extended and retracted up and down under the control of a spring arranged at the upper part of the stepped hole, and the lower ends of the telescopic rods are provided with bearing rollers which are exposed out of the bottom surface of the rotary platform seat;
the control system includes manual and automatic control devices (including remote controls) for manually or automatically controlling operation of the hydraulic cylinders and the motors in the rotary platform.
The use method of the automatic rotary dismounting device for the large multi-cylinder compressor comprises the following steps:
and 7, after the maintenance of the high-pressure cylinder is finished, retracting the piston rod of the hydraulic cylinder, separating the piston rod from the base of the high-pressure cylinder, rotating the high-pressure cylinder to a normal working position by the same method, extending the piston rod of the hydraulic cylinder downwards to support the high-pressure cylinder, ejecting the bearing roller by a spring in the movable supporting device of the rotating platform through a telescopic rod, moving the rotating platform out of the bottom of the high-pressure cylinder, then contracting the piston rod of the hydraulic cylinder, lowering the high-pressure cylinder onto the base of the high-pressure cylinder, and completing the disassembly and maintenance of the high-pressure cylinder.
The utility model has the advantages that:
1. utilize the utility model discloses when carrying out the dismouting maintenance to the high-pressure cylinder, only need arrange high-pressure cylinder compressor inner casing dismouting platform in the high-pressure cylinder can with the position of high-pressure cylinder butt joint after rotatory certain angle, then utilize the utility model discloses the device with the high-pressure cylinder on the spot rotatory make its and compressor inner casing dismouting platform butt joint can to can avoid the high-pressure cylinder to take place to interfere with the intermediate pressure cylinder that is located its rear portion, need not move the intermediate pressure cylinder, also need not to move high-pressure cylinder compressor inner casing dismouting platform, make the maintenance more convenient.
2. The hydraulic cylinders are arranged on the support legs of the high-pressure cylinders, so that the hydraulic cylinders can rotate along with the high-pressure cylinders, once the rotating platform breaks down in the rotating process, the hydraulic cylinders can support the high-pressure cylinders at any time so as to be convenient for maintaining the rotating platform, the phenomenon that the rotating platform cannot be separated from the high-pressure cylinders in the rotating process of the rotating platform so that the high-pressure cylinders cannot be rotated back to the original positions can be avoided, and the whole device can be operated more flexibly and reliably.
3. The utility model provides a rotary platform can freely remove, transports the scene during overhaul, and the storehouse is withdrawed to the maintenance finishing, and occupation space is not many, can not take place to interfere with other parts of compressor.
4. Use the utility model discloses carry out the overhaul to large-scale multi-cylinder compressor, need not to additionally consolidate the factory building, compare with using large-scale crane, easy operation is nimble, maintenance cost greatly reduced.
5. The combined control of the manual control device and the automatic control device is adopted, so that the manual control and the remote control can be realized on an on-site operation table, the operation is more flexible, and the labor intensity of workers is greatly reduced.
6. The rotary platform is provided with the movable supporting device, and the rotary platform moves on the high-pressure cylinder base by rolling of the bearing roller in the movable supporting device, so that the friction resistance between the rotary platform and the high-pressure cylinder base can be reduced, and the labor intensity of workers is reduced.
Drawings
Fig. 1 is a schematic view of the structure and the use of the present invention (a schematic view of a high pressure cylinder rotated by 90 degrees and butted with a compressor inner casing dismounting platform);
fig. 2 is a top view of the device of the present invention in a working state of the high pressure cylinder (the rotary platform is arranged below the high pressure cylinder);
fig. 3 is a bottom view of the rotary platform of the present invention;
fig. 4 is a cross-sectional view of a rotating platform according to the present invention;
fig. 5 is a top view of the support plate of the present invention;
fig. 6 is a cross-sectional view of the mobile supporting device of the present invention;
fig. 7 is a schematic view of the connection between the middle hydraulic cylinder and the high-pressure cylinder support leg of the present invention.
The symbols in the figures illustrate: 1. high-pressure cylinder base, 2, hydraulic cylinder, 21, bolt (for fixing hydraulic cylinder), 3, rotary platform, 31, speed reducer, 310, (pinion on output shaft of speed reducer), 32, motor, 33, support plate, 331, key, 34, (outer ring of bearing), 35, rotary platform seat, 36, (inner ring of bearing), 361, (transmission tooth on inner hole wall of bearing inner ring), 362, rolling body and holder component, 37, screw, 38, spring, 39, nut, 311, spring seat, 312, bearing roller, 313, telescopic rod, 314, push rod, 315, stepped hole, 4, high-pressure cylinder, 41, (supporting leg of high-pressure cylinder), 5, rotary platform pad, 6, inner casing dismounting platform of compressor, 7, rotor, 8 and control system.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
With reference to fig. 1 and 7, the embodiment of the automatic rotary dismounting device for a multi-cylinder compressor of the present invention comprises four hydraulic cylinders 2 (with piston rods of the hydraulic cylinders facing downward), a rotary platform 3, a movable supporting device and a control system 8, which are respectively and fixedly mounted on four legs (41) of a high pressure cylinder 4 by bolts 21.
The rotary platform 3 is shown in fig. 3 and 4, and comprises a rotary platform seat 35 and a rotary supporting device; the rotary supporting device comprises a driving mechanism which is arranged in the rotary platform seat and consists of a motor 32 and a speed reducer 31, and a supporting plate 33 which is driven by the driving mechanism through a transmission mechanism; the transmission mechanism comprises a bearing consisting of an outer ring 34, an inner ring 36 and a rolling body and retainer assembly 362, the outer ring 34 of the bearing is fixedly arranged at the upper part of the rotary platform seat, the inner ring of the bearing is fixedly connected with the support plate, the inner hole wall of the inner ring 36 of the bearing is provided with transmission teeth 361, the transmission teeth are meshed with a pinion 310 on an output shaft of the speed reducer, and the pinion rotates to drive the inner ring of the bearing and the support plate to rotate together through the transmission teeth on the inner hole wall of the inner ring of the bearing; the upper surface of the support plate has a key 331 (shown in fig. 2 and 5) that mates with a keyway in the bottom surface of the high pressure cylinder.
As shown in fig. 6, the movable supporting device comprises two telescopic rods 313 which are in a group and are respectively installed at the front part and the rear part of the rotary platform seat, the telescopic rods are arranged at the lower part of a stepped hole 315 of the rotary platform seat, a nut 39 matched with the internal thread of the stepped hole is arranged at the upper part of the stepped hole, a spring seat 311 is fixed at the top of the telescopic rods by a screw 37, a spring 38 is installed between the nut and the spring seat, a bearing roller 312 is installed at the lower end of the telescopic rods through a pin shaft, and the bearing roller is exposed out of the bottom surface of the rotary platform seat under the action of the spring; when the rotary platform moves on the high-pressure cylinder base 1, a certain gap is kept between the rotary platform and the high-pressure cylinder base under the support of the bearing idler wheels, and the rotary platform moves on the high-pressure cylinder base by rolling on the high-pressure cylinder base through the bearing idler wheels, so that the friction resistance between the rotary platform and the high-pressure cylinder base when the rotary platform moves is reduced, and the labor intensity of workers is reduced; the compression amount of the spring is changed by adjusting the up-and-down position of the nut in the stepped hole, so that the elastic force of the spring is adjusted, and a proper gap is kept between the rotary platform seat and the high-pressure cylinder seat.
The control system comprises automatic control means (including remote control) and manual control means (neither shown) for automatically or manually controlling the operation of the hydraulic cylinder 2 and the motor 32 in the rotary platform.
The use method of the automatic rotating dismounting device of the large multi-cylinder compressor comprises the following steps:
And 2, detaching a fixing bolt (not shown) between the high-pressure cylinder supporting leg and the high-pressure cylinder base, starting the hydraulic control system through the control system, enabling a piston rod of the hydraulic cylinder to extend downwards, enabling the head of the piston rod to be propped against the high-pressure cylinder base, and propping up the high-pressure cylinder to a certain height so as to conveniently install the rotating platform.
And 3, pushing the rotary platform to the lower part of the high-pressure cylinder through a rotary platform base plate 5 which is flush with the upper surface of the high-pressure cylinder base (if the high-pressure cylinder base is large enough, the rotary platform can be directly placed on the base without the rotary platform base plate), wherein in the moving process of the rotary platform, under the elastic force action of a spring in a moving supporting device, a bearing roller extends out of the bottom surface of the rotary platform base to support the rotary platform, so that a certain gap is kept between the bottom surface of the rotary platform base and the high-pressure cylinder base, and the rotary platform moves on the high-pressure cylinder base by rolling of the bearing roller, so that the friction resistance between the rotary platform and the high-pressure cylinder base is reduced, and the labor intensity of workers is reduced.
And 4, starting a driving mechanism of the rotary platform through the control system to rotate the support plate, adjusting the rotation angle of the support plate, and butting the key at the top of the support plate with the key groove at the bottom of the high-pressure cylinder.
And 5, contracting a piston rod of the hydraulic cylinder, enabling the high-pressure cylinder to fall on a supporting plate at the top of the rotary platform, compressing a spring in the rotary platform seat under the action of the gravity of the high-pressure cylinder, retracting the telescopic rod to drive the bearing roller to retract to the bottom surface of the rotary platform seat, and enabling the rotary platform seat to fall on a base of the high-pressure cylinder.
and 7, after the maintenance of the high-pressure cylinder is finished, retracting the piston rod of the hydraulic cylinder, leaving the high-pressure cylinder base for about 10CM, rotating the high-pressure cylinder to a normal working position by the same method, extending the piston rod of the hydraulic cylinder downwards to support the high-pressure cylinder, ejecting the bearing roller by a spring in the rotating platform moving and supporting device, moving the rotating platform out of the bottom of the high-pressure cylinder, contracting the piston rod of the hydraulic cylinder, lowering the high-pressure cylinder onto the high-pressure cylinder base, and completing the disassembly and maintenance of the high-pressure cylinder.
Claims (1)
1. The utility model provides a large-scale multi-cylinder compressor autogiration dismouting device which characterized in that: comprises four hydraulic cylinders (2) respectively fixedly arranged on four support legs (41) of a high-pressure cylinder, a rotary platform (3), a movable supporting device and a control system (8);
the rotary platform (3) comprises a rotary platform seat (35) and a rotary supporting device; the rotary supporting device comprises a driving mechanism which is arranged in the rotary platform seat and consists of a motor (32) and a speed reducer (31) and a supporting plate (33) which is driven by the driving mechanism through a transmission mechanism; the transmission mechanism comprises a bearing consisting of an outer ring (34), an inner ring (36) and a rolling body and retainer assembly (362), the outer ring (34) of the bearing is fixedly arranged at the upper part of the rotary platform seat, the inner ring of the bearing is fixedly connected with the supporting plate, and the inner hole wall of the inner ring (36) of the bearing is provided with transmission teeth (361) which are meshed with a pinion (310) on an output shaft of the speed reducer; the upper surface of the supporting plate is provided with a key (331) which can be matched with a key groove on the bottom surface of the high-pressure cylinder;
the movable supporting device comprises two telescopic rods (313) which are in a group and are respectively arranged at the front part and the rear part of the rotary platform seat, the telescopic rods are arranged at the lower part of a stepped hole (315) of the rotary platform seat and can be controlled by a spring (38) arranged at the upper part of the stepped hole to be stretched up and down, and the lower end of each telescopic rod is provided with a bearing roller (312) exposed out of the bottom surface of the rotary platform seat;
the control system comprises a manual control device and an automatic control device, and is used for manually or automatically controlling the operation of the hydraulic cylinder and the motor in the rotary platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223298949.3U CN218658860U (en) | 2022-12-05 | 2022-12-05 | Automatic rotating dismounting device of large multi-cylinder compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223298949.3U CN218658860U (en) | 2022-12-05 | 2022-12-05 | Automatic rotating dismounting device of large multi-cylinder compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218658860U true CN218658860U (en) | 2023-03-21 |
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ID=85548481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223298949.3U Active CN218658860U (en) | 2022-12-05 | 2022-12-05 | Automatic rotating dismounting device of large multi-cylinder compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218658860U (en) |
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2022
- 2022-12-05 CN CN202223298949.3U patent/CN218658860U/en active Active
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