CN105817865B - A kind of storage station's water intaking valve pivot axle sleeve attaching/detaching apparatus and assembly and disassembly methods - Google Patents
A kind of storage station's water intaking valve pivot axle sleeve attaching/detaching apparatus and assembly and disassembly methods Download PDFInfo
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- CN105817865B CN105817865B CN201610165821.XA CN201610165821A CN105817865B CN 105817865 B CN105817865 B CN 105817865B CN 201610165821 A CN201610165821 A CN 201610165821A CN 105817865 B CN105817865 B CN 105817865B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
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- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
本发明公开了一种蓄能电站进水阀枢轴轴套拆装装置及方法，其中，该装置包括：液压泵、分流器、中空千斤顶、受力导向螺杆、组合受力套件、轴套连接螺杆；分流器连接液压泵及中空千斤顶，组合受力套件包括受力盘、与受力盘焊接组装的受力套筒，受力盘上布设有受力导向螺杆孔，受力套筒布设有连接螺杆孔。利用该装置进行轴套拆装，可以提高工作效率，减少操作人员数量，能省去在回装轴套环节的反复拆装工序，减少回装轴套时间及冷缩后的轴套在常温环境中暴露的时间，保证安装质量和轴套自身设备的安全。同时，轴套受力均匀，避免了在回装过程中因发生卡阻而需要重新拔出返工的问题，减少了枢轴轴套检修不可控的因素，保证了机组检修整体的进度。
The invention discloses a device and a method for disassembling and disassembling a shaft sleeve of an inlet valve of an energy storage power station. The screw; the flow divider is connected with the hydraulic pump and the hollow jack. The combined stress kit includes a force plate and a force sleeve welded and assembled with the force plate. The force guide screw hole is arranged on the force plate, and the force sleeve is equipped with Connection screw holes. Using this device to disassemble and assemble the shaft sleeve can improve work efficiency, reduce the number of operators, save the repeated disassembly and assembly process in the reinstallation of the shaft sleeve, reduce the time for reinstalling the shaft sleeve and reduce the temperature of the shaft sleeve after cooling in the normal temperature environment. The time of medium exposure ensures the installation quality and the safety of the bushing's own equipment. At the same time, the shaft sleeve is evenly stressed, which avoids the problem of needing to be pulled out and reworked due to jamming during the reassembly process, reduces uncontrollable factors in the maintenance of the pivot shaft sleeve, and ensures the overall progress of the maintenance of the unit.
Description
Technical Field
The invention relates to the field of electric power, in particular to a device and a method for dismounting a water inlet valve pivot shaft sleeve of an energy storage power station.
Background
At present, a pumped storage power station is taken as a prominent representative of new energy, is closely related to national policies such as energy conservation and emission reduction, environmental protection and the like, can be matched with the operation of thermal power, nuclear power and the like, optimizes the structure of a power grid and ensures the stability of the power grid. One of the main structures of the energy storage power station comprises a water diversion system, wherein the water diversion system comprises a water inlet gate, a water delivery pressure steel pipe, a water inlet valve and the like. Wherein the water inlet valve is divided into a valve body and a valve plate. The valve body is the shell of the water inlet valve, the valve body is an integral casting part, and shaft holes are arranged on two sides of the valve body for installing the valve plate shaft. The valve plate is a water inlet valve sealing component and plays a role in switching on and off water flow, and the valve plate is provided with a shaft, and the water inlet valve is opened and closed through the matching of the operating mechanism and the shaft. A shaft sleeve (namely a pivot shaft sleeve) is arranged between the valve plate shaft and the shaft hole of the valve body, so that the functions of lubricating the opening and closing actions and protecting the shaft hole from being abraded are achieved. Because the pumped storage unit needs to be adjusted according to the load every day, the unit is frequently started and stopped every day, the pivot shaft sleeve is quickly abraded, and the pivot shaft sleeve needs to be replaced after being abraded to a certain degree, so that the shaft sleeve is pulled out and installed. Because the size of axle sleeve and hole belongs to interference fit, consequently all need great power to go on smoothly in the in-process of pulling out the axle sleeve and installing, have a series of devices for the dismouting of axle sleeve for this reason.
The existing water inlet valve pivot shaft sleeve dismounting device has various parts and complex operation, so that the shaft sleeve dismounting process wastes time and labor, the uncertain factors are many, the overhauling construction period is easily influenced, and meanwhile, the cold shrinkage effect of the shaft sleeve is influenced because the complicated operation in the dismounting process causes the long time of the shaft sleeve exposed in the normal temperature environment, and the shaft sleeve dismounting is not facilitated.
Disclosure of Invention
The pivot shaft sleeve is more in dismounting preparation work, including large piece hoisting, scaffold erection and the like. The operation risk is many, like high altitude construction, cross operation, mechanical injury etc. therefore axle sleeve dismouting device structure is simpler, and the operation flow is more refined, and operating personnel is less, more helps the production safety and the maintenance quality of maintenance scene. Particularly, the pivot shaft sleeve is shrunk before being reinstalled, the shorter the reinstallation time is, the smoother the reinstallation process is, and the damage to the shaft sleeve and the shaft hole can be prevented.
In order to achieve the above object, the present invention provides a device for assembling and disassembling a pivot shaft sleeve of a water inlet valve of an energy storage power station, comprising: the hydraulic pump, the flow divider, the hollow jack, the stress guide screw, the combined stress external member and the shaft sleeve connecting screw are arranged on the hydraulic pump; the combined stress sleeve comprises a stress disc and a stress sleeve, the stress disc and the stress sleeve are welded and assembled, stress guide screw holes are distributed in the stress disc, and connecting screw holes are distributed in the stress sleeve; when the pivot shaft sleeve is pulled out, one end of the stressed guide screw penetrates through the stressed guide screw hole and the hollow jack and is fixedly connected with the valve body of the water inlet valve; the top bar of the hollow jack faces the stress disc, and the base of the hollow jack is fixed by a back cap screwed on the stress guide screw; the shaft sleeve connecting screw is inserted into the connecting screw hole, one end of the shaft sleeve connecting screw is clamped in the connecting screw hole close to one side of the stress disc through the screwed back cap, and the other end of the shaft sleeve connecting screw is connected with the pivot shaft sleeve; the hollow jack jacks up the stress disc along the stress guide screw by pressing the hydraulic pump, and the pivot shaft sleeve is pulled out by the shaft sleeve connecting screw; when the pivot shaft sleeve is installed, one end of the stressed guide screw penetrates through the hollow jack and the stressed guide screw hole and is fixedly connected to the valve body of the water inlet valve; the top bar of the hollow jack faces the stress disc, and the base of the hollow jack is fixed by a back cap screwed on the stress guide screw; after the shaft sleeve connecting screw is inserted into the connecting screw hole, one end of the shaft sleeve connecting screw is clamped in the connecting screw hole at one side far away from the stress disc through the screwed back cap and props against the pivot shaft sleeve; the hollow jack jacks up the stress disc along the stress guide screw by pressing the hydraulic pump, and the pivot shaft sleeve is jacked into the mounting position through the shaft sleeve connecting screw.
Furthermore, 4 stress guide screw holes are distributed on the stress disc.
Further, the device comprises 4 stressed guide screws and 4 hollow jacks.
Furthermore, 12 connecting screw holes are distributed on the stress sleeve.
Further, the device comprises 12 sleeve connecting screws.
The invention also provides a method for dismounting the pivot shaft sleeve of the water inlet valve of the energy storage power station, wherein the method for pulling out the pivot shaft sleeve comprises the following steps: hoisting the combined stress external member in place by using a bridge crane, and fixedly connecting a stress guide screw to the valve body of the water inlet valve after sequentially penetrating through a stress guide screw hole and a hollow jack; the top bar of the hollow jack faces the stress disc, the base of the hollow jack is fixed by a back cap screwed on the stress guide screw rod, and the back cap is used as a force application fulcrum of the hollow jack; inserting a shaft sleeve connecting screw into the connecting screw hole, wherein one end of the shaft sleeve connecting screw is clamped in the connecting screw hole close to one side of the stress disc through a screwed back cap, and the other end of the shaft sleeve connecting screw is connected with the pivot shaft sleeve, so that the combined stress external member is connected and fastened with the pivot shaft sleeve; a hydraulic pipeline is used for connecting the hydraulic pump, the shunt and the hollow jack; the hydraulic pump is pressed to enable the hollow jack to be stressed uniformly, the hollow jack jacks up the stress disc along the stress guide screw rod, and the pivot shaft sleeve is pulled out through the shaft sleeve connecting screw rod; the method of installing a pivot bushing includes: cooling the pivot shaft sleeve, hoisting the pivot shaft sleeve to the water inlet valve pivot by using a bridge crane after cooling is finished, and releasing the connection between the bridge crane and the pivot shaft sleeve; hoisting the combined stress external member in place by using a bridge crane; after the shaft sleeve connecting screw is inserted into the connecting screw hole, one end of the shaft sleeve connecting screw is clamped in the connecting screw hole at one side far away from the stress disc through the screwed back cap and props against the pivot shaft sleeve; one end of the stressed guide screw penetrates through the stressed guide screw hole and is fixedly connected to the valve body of the water inlet valve; a hollow jack penetrates through the stress guide screw, a top bar of the hollow jack faces the stress disc, and a base of the hollow jack is fixed by a back cap screwed on the stress guide screw; the heights of the back caps are adjusted to be consistent; a hydraulic pipeline is used for connecting the hydraulic pump, the shunt and the hollow jack; and the hydraulic pump is pressed to enable the hollow jack to be stressed uniformly, the hollow jack jacks up the stress disc along the stress guide screw rod, and the pivot shaft sleeve is jacked into the mounting position through the shaft sleeve connecting screw rod.
The shaft sleeve dismounting device and the shaft sleeve dismounting method for the water inlet valve pivot shaft sleeve of the energy storage power station can improve the working efficiency, reduce the number of operators, simplify the operation process, save the repeated dismounting and mounting process of the shaft sleeve loop, reduce the shaft sleeve dismounting time, reduce the time of exposing the shaft sleeve after cold contraction in the normal temperature environment, and ensure the mounting quality and the safety of the shaft sleeve self equipment. Meanwhile, the refined structure and the simplified operation steps provide guarantee for the safety production of field maintenance. In addition, utilize hydraulic pump, shunt to make the axle sleeve atress even, avoided the axle sleeve to pull out the problem of doing over again because of taking place the card to hinder at repacking in-process, reduced pivot axle sleeve and overhauld uncontrollable factor, guaranteed the holistic progress of unit maintenance.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
FIG. 1 is a schematic structural view of a force application part in the device for assembling and disassembling a pivot shaft sleeve of a water inlet valve of an energy storage power station.
FIG. 2 is a schematic structural view of a combined stress sleeve in the device for assembling and disassembling the pivot shaft sleeve of the water inlet valve of the energy storage power station.
FIG. 3 is a schematic structural view of a force-bearing guide portion of the device for mounting and dismounting a water inlet valve pivot shaft sleeve of an energy storage power station.
FIG. 4 is a schematic view showing the connection of the device for pulling out the pivot bush by using the device for mounting and dismounting the pivot bush of the water inlet valve of the energy storage power station according to the present invention.
FIG. 5 is a schematic view showing the attachment of the pivot bushing to the apparatus for mounting and dismounting the pivot bushing of the inlet valve of the energy storage plant according to the present invention.
Detailed Description
The technical means adopted by the invention to achieve the preset object are further described below by combining the drawings and the preferred embodiments of the invention.
Referring to fig. 1 to 3, the device for mounting and dismounting the pivot shaft sleeve of the water inlet valve of the energy storage power station comprises: the hydraulic pump 1, the shunt 2, the hollow jack 3, the stress guide screw rod 4, the combined stress external member 5 and the shaft sleeve connecting screw rod 6.
Further, fig. 1 is a schematic structural diagram of the force application portion. The hydraulic pump 1 is connected with a flow divider 2, and the flow divider 2 is connected with a hollow jack 3. The hydraulic pump 1 is used for providing hydraulic power, and can adopt a manual hydraulic pump or an electric hydraulic pump, and if the electric hydraulic pump is adopted, the working efficiency is further improved. The flow divider 2 is used for distributing the hydraulic pressure of the hydraulic pump 1 into 4 hollow jacks 3 to ensure that the pressure of each hollow jack 3 is consistent. Correspondingly, the number of the stressed guide screw rods is 4, and the stressed guide screw rods are used for being matched with the hollow jack 3 to work. The hollow jack 3 is fixed by utilizing the hollow characteristic of the hollow jack and the stressed guide screw rod 4, and the back-tightening nut on the stressed guide screw rod 4 is used as a force application fulcrum, so that the pivot shaft sleeve can be pulled out and pressed in.
As shown in fig. 2, it is a schematic structural diagram of the force-receiving portion. The combined stress assembly 5 comprises a stress disc 51 and a stress sleeve 52, wherein the stress disc 51 and the stress sleeve 52 are welded and assembled, 4 stress guide screw holes 53 are distributed on the stress disc 51, 12 connecting screw holes 54 are distributed on the stress sleeve 52, and a hanging ring 55 is arranged on the stress sleeve 52. The bushing coupling screw 6 includes 12 corresponding to the number of the coupling screw holes 54. The eye 55 is used to maintain the orientation of the combined force sleeve 5 through the force lead screw 4 for installation.
FIG. 4 is a schematic view showing the connection of the device for pulling out the pivot bush by using the device for mounting and dismounting the pivot bush of the water inlet valve of the energy storage power station according to the present invention. Usually, the inlet valve body 8 is internally provided with a pivot shaft sleeve 7 and an inlet valve pivot (not shown), and the pivot shaft sleeve 7 is sleeved outside the inlet valve pivot.
When the pivot bushing 7 is pulled out, the apparatus is first assembled. And hoisting the combined stress external member 5 in place by using a bridge crane. The stressed guide screw 4 sequentially passes through the stressed guide screw hole 53 and the hollow jack 3 and then is fixedly connected with the water inlet valve body 8. The top lever of the hollow jack 3 faces the stress disc 51, the base of the hollow jack 3 is fixed by a back cap screwed on the stress guide screw rod 4, and the back cap can be used as a force application fulcrum of the hollow jack 3. The sleeve connection screw 6 is inserted into the connection screw hole 54, one end of which is caught by the screwed back cap at the connection screw hole 54 near the side of the force receiving plate 51, and the other end is connected to the pivot sleeve 7, so that the combined force receiving sleeve 5 is fixedly connected to the pivot sleeve 7. And connecting the hydraulic pump 1, the flow divider 2 and the hollow jack 3 by using a hydraulic pipeline, and finishing the assembly of the device.
And then, shaft sleeve pulling operation is carried out, the hydraulic pump 1 is pressed, 4 hollow jacks 3 are uniformly stressed, the hollow jacks 3 jack the stress disc 51 along the stress guide screw rods 4, and the pivot shaft sleeve is pulled out through the shaft sleeve connecting screw rods 6. When the hydraulic pump 1 is pressed, whether the parts are connected and fastened needs to be checked, and after the abnormality is confirmed, the hydraulic pump 1 is continuously pressed, so that the shaft sleeve is slowly pulled out of the shaft hole. And when the stroke of the hollow jack 3 is to be exhausted, the pressure of the hydraulic pump is removed, the hollow jack 3 is moved towards the direction of the combined stress external member 5, the back cap is fastened, the hydraulic pump 1 is pressed again to enable the 4 hollow jacks 3 to be uniformly stressed, the process is repeatedly operated until the shaft sleeve is completely pulled out of the shaft hole, and the shaft sleeve pulling operation is finished.
FIG. 5 is a schematic view showing the attachment of the pivot bushing to the apparatus for mounting and dismounting the pivot bushing of the inlet valve of the energy storage plant according to the present invention. Because the size of pivot axle sleeve 7 and the interior pre-installation position of shaft hole is interference fit, consequently before the axle sleeve repacks, need carry out cooling treatment with the axle sleeve for the external diameter size of axle sleeve reduces because of the principle of shrinkage temporarily, makes things convenient for the repacking of axle sleeve.
When the pivot shaft sleeve 7 is installed, the shaft sleeve needs to be cooled firstly, and after the cooling is finished, the shaft sleeve is hung on the water inlet valve pivot shaft by using the bridge crane, so that the connection between the bridge crane and the shaft sleeve is released. And hoisting the combined stress external member 5 in place by using a bridge crane. After the shaft sleeve connecting screw 6 is inserted into the connecting screw hole 54, one end of the connecting screw hole 54 on the side far from the stress disc 51 is clamped by a screwed back cap and is pressed against the pivot shaft sleeve 7. One end of the force-receiving guide screw 4 is passed through the force-receiving guide screw hole 53 and is fixedly connected to the inlet valve body. The hollow jack 3 penetrates through the stress guide screw rod 4, the top bar of the hollow jack 3 faces the stress disc 51, and the base of the hollow jack 3 is fixed through a back cap screwed on the stress guide screw rod 4, so that the height of the back cap is adjusted uniformly. And connecting the hydraulic pump 1, the flow divider 2 and the hollow jack 3 by using a hydraulic pipeline, and finishing the assembly of the device.
And then, the shaft sleeve is reinstalled, the hydraulic pump 1 is pressed, 4 hollow jacks 3 are uniformly stressed, the hollow jacks 3 jack the stress disc 51 along the stress guide screw rods 4, and the shaft sleeve is jacked into the installation position through the shaft sleeve connecting screw rods 6. When the hydraulic pump 1 is pressed, it is necessary to check whether or not the respective portions are connected and fastened, and after confirming that there is no abnormality, the hydraulic pump 1 is continuously pressed so that the sleeve is gradually pressed into the shaft hole. When the stroke of the hollow jack 3 is to be exhausted, the pressure of the hydraulic pump is removed, the hollow jack 3 is moved towards the direction of the combined stress external member 5, the back cap is fastened, the hydraulic pump 1 is pressed again to enable the 4 hollow jacks 3 to be stressed evenly, the process is operated repeatedly until the shaft sleeve is pressed into the shaft hole completely, and the shaft sleeve is reinstalled to finish the work.
The shaft sleeve dismounting device and the shaft sleeve dismounting method for the water inlet valve pivot shaft sleeve of the energy storage power station can improve the working efficiency, reduce the number of operators, simplify the operation process, save the repeated dismounting and mounting process of the shaft sleeve loop, reduce the shaft sleeve dismounting time, reduce the time of exposing the shaft sleeve after cold contraction in the normal temperature environment, and ensure the mounting quality and the safety of the shaft sleeve self equipment. Meanwhile, the refined structure and the simplified operation steps provide guarantee for the safety production of field maintenance. In addition, utilize hydraulic pump, shunt to make the axle sleeve atress even, avoided the axle sleeve to pull out the problem of doing over again because of taking place the card to hinder at repacking in-process, reduced pivot axle sleeve and overhauld uncontrollable factor, guaranteed the holistic progress of unit maintenance.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610165821.XA CN105817865B (en) | 2016-03-22 | 2016-03-22 | A kind of storage station's water intaking valve pivot axle sleeve attaching/detaching apparatus and assembly and disassembly methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610165821.XA CN105817865B (en) | 2016-03-22 | 2016-03-22 | A kind of storage station's water intaking valve pivot axle sleeve attaching/detaching apparatus and assembly and disassembly methods |
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| Publication Number | Publication Date |
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| CN105817865A CN105817865A (en) | 2016-08-03 |
| CN105817865B true CN105817865B (en) | 2017-12-15 |
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| CN201610165821.XA Active CN105817865B (en) | 2016-03-22 | 2016-03-22 | A kind of storage station's water intaking valve pivot axle sleeve attaching/detaching apparatus and assembly and disassembly methods |
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| CN114198238A (en) * | 2021-12-30 | 2022-03-18 | 中国长江电力股份有限公司 | Force conversion device and method for hydroelectric generating set |
| KR102908714B1 (en) * | 2022-12-29 | 2026-01-06 | 한전케이피에스 주식회사 | Tool for releasing shear block |
| CN117444570B (en) * | 2023-11-10 | 2026-03-06 | 江苏核电有限公司 | A device for disassembling and assembling end covers of large horizontal centrifugal pumps for nuclear power plants |
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