CN103878531A - Cylindrical cylinder fastening ring installation method and supporting tooling applied by the same - Google Patents
Cylindrical cylinder fastening ring installation method and supporting tooling applied by the same Download PDFInfo
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- CN103878531A CN103878531A CN201410112950.3A CN201410112950A CN103878531A CN 103878531 A CN103878531 A CN 103878531A CN 201410112950 A CN201410112950 A CN 201410112950A CN 103878531 A CN103878531 A CN 103878531A
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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
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
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Abstract
The invention provides a cylindrical cylinder fastening ring installation method and a supporting tooling applied by the same. The installation method includes the steps that (1), fastening ring number and installation position are determined according to interference fit installation requirements and the cylindrical cylinder design structure; (2) the lower half of a cylinder body is supported and hung at a non-installation area of the lower half of the cylinder body through a front support and a back support, according to the determined fastening ring installation position, the front support is mainly composed of two hydraulic jacks remotely controlled, the upper half of the cylinder body is arranged on the lower half of the cylinder body in a heaven and earth coordination mode; (3) fastening rings are sleeved on the upper half of the cylinder body and the lower half of the cylinder body respectively in sequence from outside to inside, while converting and alternating support to the two hydraulic jacks of the front support are conducted, so that the fastening rings are sleeved on the upper half of the cylinder body and the lower half of the cylinder body and the upper half of the cylinder body and the lower half of the cylinder body are hooped tightly and combined together. The cylindrical cylinder fastening ring installation method and the supporting tooling applied by the same have the advantages of being convenient to operate, simple and easy, efficient and fast, and safe and reliable on the premise of effectively ensuring support reliability.
Description
Technical field
The present invention relates to the barrel-type casing of steam turbine, the supporting tool that specifically a kind of installation method of barrel-type casing dead ring and this installation method are used.
Background technology
Referring to Fig. 1: barrel-type casing is mainly as the inner casing of steam turbine high-pressure cylinder, it comprise semi-cylindrical shaped structure cylinder body first 1 and cylinder body second 2, cylinder body first 1 and cylinder body second 2 combined by multiple dead rings 3 bandings that are sleeved on their outer walls, be cylinder body first 1 and second seal combination between 2 of cylinder body be to be realized by the multiple dead rings 3 that are sleeved on their outer walls, guarantee in service under any operating mode without steam leakage.
At present, barrel-type casing tighten ring installation rely on be traditional approach, by back and front supporting by unsettled second support of cylinder body, first mode coordinating with the world of cylinder body is combined in to cylinder body on second, be set with successively each dead ring according to order from inside to outside half-sum cylinder body on cylinder body on second, in the cover process of assembling of each dead ring, need manually front support to be changed alternately and supported, alternately support by manually-operated conversion, make front support can make again dead ring cover be filled to design attitude under the prerequisite that meets support.Because the front support of this installation method is changed blocked operation by workman's direct control realization at the scene, there is following wretched insufficiency:
1. what the suit of dead ring relied on is that principle of expanding with heat and contracting with cold is realized, the dead ring that needs suit is heated expansion, the dead ring of high temperature is very easily scalded the workman of careless manipulation in the process of suit so, this has not only directly affected production efficiency, and easily leads to great work safety accident;
2. because the dead ring of needs suit is more, dead ring of every suit, just need carry out alternately support operation of corresponding conversion to front support, not only make labor strength increase, and each action need is strictly monitored the top of front support, the strong point position that the end occurs changes, once changing, strong point position just needs to adjust and reset in time, otherwise easily make volume large, the slippage from supporter of the cylinder of Heavy Weight falls on the ground, lead to serious accident and (consider the setting in cylinder body steam inlet pipe road on second, the height of second support of cylinder body is higher), thereby each alternately support operation of changing bothers very much, technical requirement is very high, (each operation is at least consuming time more than 30 minutes for length consuming time, treat that all dead ring suits are complete, minimum 8 hours consuming time), have a strong impact on production efficiency.
Summary of the invention
One of object of the present invention is: for above-mentioned the deficiencies in the prior art, provide a kind of easy row convenient and simple for operation, efficient quick, safe and reliable barrel-type casing dead ring installation method.
Two of object of the present invention is: for the installation method of one of object, and the supporting tool that provides a kind of simple in structure, easy to operate, reliable and practical barrel-type casing dead ring installation method to use.
The technical scheme that one of object of the present invention adopts is, a kind of barrel-type casing dead ring installation method, described barrel-type casing comprise on the cylinder body of semi-cylindrical shaped structure half-sum cylinder body second, on cylinder body half-sum cylinder body second combined by the multiple dead ring bandings that are sleeved on their outer walls; Dead ring installation method on described barrel-type casing comprises following order step:
1). according to the project organization of barrel-type casing, determine quantity and the installation site of dead ring with the installation requirement of interference fit;
2). the dead ring installation site definite according to step 1), in second non-installation region of cylinder body by front support and rear support by unsettled second support of cylinder body, front support is mainly made up of the hydraulic jack of two Long-distance Control; By cylinder body, first is assembled in cylinder body on second to the mode coordinating with the world;
3). be set with successively each dead ring according to order from inside to outside half-sum cylinder body on cylinder body on second, in the cover process of assembling of each dead ring, two of front support hydraulic jack are changed alternately and supported, with this, each dead ring is sleeved on cylinder body to half-sum cylinder body on second, second banding of half-sum cylinder body on cylinder body is combined.
Further, in step 3), having overlapped the dead ring installing is supported by middle cushion block.
Further, described middle cushion block is placed on pad case.
Further, step 2) in rear support there is the support of coupling cylinder body second outer wall profile.
Further, described support is fixed on pad case.
Two technical schemes that adopt of object of the present invention are, the supporting tool that a kind of above-mentioned barrel-type casing dead ring installation method is used, this supporting tool is hydraulic jack, comprise hydraulic jack body, described supporting tool also comprises supporting frame, this supporting frame is mainly made up of base and support tube, the inner hollow diameter of support tube is greater than the external diameter of hydraulic jack cylinder, support tube stands to being arranged on base, between support tube outer wall and base, be provided with multiple diagonal braces, the oil cylinder of hydraulic jack is inserted in support tube, and relative positioning will be carried out by trip bolt between support tube and oil cylinder.
Further, on the support tube inwall of support frame as described above body, be respectively equipped with the stringing groove of fuel feed hole and outage on corresponding oil cylinder.
The invention has the beneficial effects as follows:
The front support of installation method of the present invention is mainly made up of the hydraulic jack of two Long-distance Control, by long-range, they are changed alternately and are supported, effectively guaranteeing to support under the prerequisite of reliability, effectively avoided the artificial problem that closely operation exists, it has easy row convenient and simple for operation, efficient quick, the feature such as safe and reliable;
Supporting tool of the present invention designs for installation method of the present invention specially, it is not only simple in structure, easy to operate, and can be reliable, stable support, can there is not the problem that strong point position changes, contribute to alleviate labor strength, reduce the technical difficulty of fitting operation, significantly enhance productivity, practical.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the structural representation of barrel-type casing.
Fig. 2 is the schematic diagram of fitting operation of the present invention.
Fig. 3 is the structural representation of hydraulic jack in Fig. 2.
Code name implication in figure: 1-cylinder body first; 2-cylinder body second; 3-dead ring; The 4-the first hydraulic jack; The 5-the second hydraulic jack; 6-middle cushion block; 7-pad case; 8-rear support; 9-channel; 10-base; 11-support tube; 12-diagonal brace; 13-trip bolt; 14-oil cylinder; 15-piston.
The specific embodiment
Referring to Fig. 1: the barrel-type casing the present invention is directed to is mainly as the inner casing of steam turbine high-pressure cylinder, it comprise semi-cylindrical shaped structure cylinder body first 1 and cylinder body second 2, cylinder body first 1 and cylinder body second 2 combine (quantity of dead ring 3 is generally seven) by multiple dead rings 3 bandings that are sleeved on their outer walls, be cylinder body first 1 and second seal combination between 2 of cylinder body be to be realized by the multiple dead rings 3 that are sleeved on their outer walls, guarantee in service under any operating mode without steam leakage.
Referring to Fig. 2 and Fig. 3: the installation method that above-mentioned barrel-type casing tightens ring 3 comprises following order step:
1). according to the project organization of barrel-type casing, determine quantity and the installation site of dead ring 3 with the installation requirement of interference fit, this is mainly because the outer wall of barrel-type casing is not regular post shapes, the different size of outside dimension of its each section, determine the installation site of dead ring 3 in the mode of interference fit in its different sections according to the project organization of barrel-type casing, when installation site is definite, can determine installation quantity, be generally seven dead rings 3;
2). dead ring 3 installation sites definite according to step 1), in second non-installation region of 2 of cylinder body by front support and rear support 8 by cylinder body second 2 support unsettled, front support is mainly made up of the hydraulic jack of two Long-distance Control, i.e. the first hydraulic jack 4 and the second hydraulic jack 5, arrange from front to back for two, their piston 15 is on same straight line substantially; Rear support 8 has the support of second 2 outer wall profile of coupling cylinder body, be cylinder body second 2 be placed on the support of rear support 8, to cylinder body, second 2 positions support, the support of rear support 8 is fixed on pad case 7 tops, in order to prevent that padding case 7 moves, the bottom of pad case 7 is fixed on the ground by channel 9 and respective bolt; The mode coordinating with the world by cylinder body first 1 be assembled in cylinder body second on 2;
3). according to order from inside to outside cylinder body first 1 and cylinder body second be set with successively each heated dead ring 3 on 2, be that each dead ring 3 adopts the mode of shrink-on to be set with, in the cover process of assembling of each dead ring 3, two of front support hydraulic jack are changed alternately and supported, in the time that the dead ring 3 of suit arrives at the piston place of the first hydraulic jack 4, by the remote electric pump control pressure release of this hydraulic jack, make the piston of the first hydraulic jack 4 return cylinder reset, now only there is the second hydraulic jack 5 to support, guarantee that dead ring 3 is smoothly by the supporting zone of the first hydraulic jack 4, ring 3 to be tightened is by after the supporting zone of the first hydraulic jack 4, by its remote electric pump control fuel feeding make piston support cylinder body second 2, by the remote electric pump control pressure release of the second hydraulic jack 5, make the piston of the second hydraulic jack 5 return cylinder reset, now only there is the first hydraulic jack 4 to support, guarantee that dead ring 3 is smoothly by the supporting zone of the second hydraulic jack 5, ring to be tightened 3 is by after the supporting zone of the second hydraulic jack 5, by its remote electric pump control fuel feeding make piston support cylinder body second 2, with this by each dead ring 3 be sleeved on cylinder body first 1 and cylinder body second on 2, by cylinder body first 1 and second 2 banding of cylinder body combine.
For barrel-type casing is carried out to secure support, supported by middle cushion block 6 having overlapped the dead ring 3 installing in step 3), supported by middle cushion block 6 by the dead ring 3 being sleeved between back and front supporting on barrel-type casing, middle cushion block 6 is placed and is fixed on pad case 7, in order to prevent that padding case 7 moves, the bottom of pad case 7 is fixed on the ground by channel 9 and respective bolt.
Above-mentioned steps 2) in hydraulic jack as important support frock of the present invention, the present invention has particular requirement to its structure, to guarantee the reliability and stability of its support.This hydraulic jack (comprising the first hydraulic jack 4 and the second hydraulic jack 5), comprises hydraulic jack body and supporting frame.Hydraulic jack body is large stroke, it is mainly made up of oil cylinder 14, piston 15, electrodynamic pump, fuel feed pump and oil discharge pipe, piston 15 is assemblied in oil cylinder 14, on oil cylinder 14, be provided with fuel feed hole and outage, fuel feed pump and oil discharge pipe's correspondence are connected on the fuel feed hole and outage of oil cylinder 14, in fuel feed pump and oil discharge pipe, be respectively equipped with check valve, to guarantee the self-locking of hydraulic jack body.Supporting frame is mainly made up of base 10 and support tube 11, the inner hollow diameter of support tube 11 is slightly larger than the external diameter of hydraulic jack cylinder 14, the hollow degree of depth of support tube 11 is less than hydraulic jack cylinder 14 height, support tube 11 stands to being arranged on base 10, between support tube 11 outer walls and base 10, be provided with multiple diagonal braces 12, each diagonal brace 12 shape triangular in shape, they are distributed on the circumference of support tube 11; The oil cylinder 14 of hydraulic jack is inserted in support tube 11 and will between support tube 11 and oil cylinder 14, carries out relative positioning by multiple trip bolts 13, on the inwall of support tube 11, be respectively equipped with the stringing groove of fuel feed hole and outage on corresponding hydraulic jack cylinder 14, be to there is vertical groove on the inwall of support tube 11, fuel feed hole and outage on the corresponding oil cylinder 14 of this groove difference, oil cylinder 14 is inserted into support tube 11 when interior, fuel feed pump and oil discharge pipe enter respectively in corresponding stringing groove, are guided and are arranged by stringing groove.
In order to prevent that relative displacement occurs for the first hydraulic jack 4 and the second hydraulic jack 5 in dead ring 3 installation processes, the base 10 of the first hydraulic jack 4 and the second hydraulic jack 5 is fixed on the ground by channel 9 and respective bolt respectively.
Claims (7)
1. a barrel-type casing dead ring installation method, described barrel-type casing comprise on the cylinder body of semi-cylindrical shaped structure half-sum cylinder body second, on cylinder body half-sum cylinder body second combined by the multiple dead ring bandings that are sleeved on their outer walls; It is characterized in that, the dead ring installation method on described barrel-type casing comprises following order step:
1). according to the project organization of barrel-type casing, determine quantity and the installation site of dead ring with the installation requirement of interference fit;
2). the dead ring installation site definite according to step 1), in second non-installation region of cylinder body by front support and rear support by unsettled second support of cylinder body, front support is mainly made up of the hydraulic jack of two Long-distance Control; By cylinder body, first is assembled in cylinder body on second to the mode coordinating with the world;
3). be set with successively each dead ring according to order from inside to outside half-sum cylinder body on cylinder body on second, in the cover process of assembling of each dead ring, two of front support hydraulic jack are changed alternately and supported, with this, each dead ring is sleeved on cylinder body to half-sum cylinder body on second, second banding of half-sum cylinder body on cylinder body is combined.
2. barrel-type casing dead ring installation method according to claim 1, is characterized in that, has overlapped the dead ring installing and supported by middle cushion block in step 3).
3. barrel-type casing dead ring installation method according to claim 2, is characterized in that, described in the middle of cushion block be placed on pad case.
4. barrel-type casing dead ring installation method according to claim 1, is characterized in that step 2) in rear support there is the support of second outer wall profile of coupling cylinder body.
5. barrel-type casing dead ring installation method according to claim 4, is characterized in that, described support is fixed on pad case.
6. the supporting tool that described in a claim 1, barrel-type casing dead ring installation method is used, this supporting tool is hydraulic jack, comprise hydraulic jack body, it is characterized in that, described supporting tool also comprises supporting frame, this supporting frame is mainly made up of base (10) and support tube (11), the inner hollow diameter of support tube (11) is greater than the external diameter of hydraulic jack cylinder (14), support tube (11) stands to being arranged on base (10), between support tube (11) outer wall and base (10), be provided with multiple diagonal braces (12), the oil cylinder (14) of hydraulic jack is inserted in support tube (11), and will between support tube (11) and oil cylinder (14), carry out relative positioning by trip bolt (13).
7. the supporting tool that barrel-type casing dead ring installation method is used according to claim 6, is characterized in that, is respectively equipped with the stringing groove of the upper fuel feed hole of corresponding oil cylinder (14) and outage on support tube (11) inwall of support frame as described above body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112950.3A CN103878531B (en) | 2014-03-25 | 2014-03-25 | The supporting tool of barrel-type casing dead ring installation method and the method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112950.3A CN103878531B (en) | 2014-03-25 | 2014-03-25 | The supporting tool of barrel-type casing dead ring installation method and the method |
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| CN103878531A true CN103878531A (en) | 2014-06-25 |
| CN103878531B CN103878531B (en) | 2016-04-20 |
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| CN201410112950.3A Active CN103878531B (en) | 2014-03-25 | 2014-03-25 | The supporting tool of barrel-type casing dead ring installation method and the method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788771A (en) * | 2019-10-18 | 2020-02-14 | 上海五钢设备工程有限公司 | Special fixture for replacing clamping cylinder of quick forging manipulator and replacing method thereof |
| CN112676805A (en) * | 2020-11-27 | 2021-04-20 | 北京星航机电装备有限公司 | Cabin penetrating sleeving tool and method for engine with large slenderness ratio |
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| US4202514A (en) * | 1978-12-18 | 1980-05-13 | Chen Cheng Kuan | Hydraulic jack device |
| CN200964798Y (en) * | 2006-06-02 | 2007-10-24 | 中国石化集团江汉石油管理局第四机械厂 | Multiple pivot height-adjustable portable drilling machine base |
| CN201102875Y (en) * | 2008-03-18 | 2008-08-20 | 中国人民解放军总参谋部陆航研究所 | Combined hydraulic jack |
| CN202208016U (en) * | 2011-09-09 | 2012-05-02 | 中国人民解放军63908部队 | Multifunctional placement rack for maintenance to power bay of large-scale equipment |
| CN202531056U (en) * | 2012-04-05 | 2012-11-14 | 中国石油天然气股份有限公司 | Adjustable pipe rod rack buttress |
| CN202754747U (en) * | 2012-08-16 | 2013-02-27 | 鞍钢集团矿业公司 | Hydraulic control lifter used for overhaul of ball grinding mill |
| CN202957492U (en) * | 2012-11-19 | 2013-05-29 | 沧州供电公司 | Special-purpose tool for overhauling circuit breaker spring mechanism |
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2014
- 2014-03-25 CN CN201410112950.3A patent/CN103878531B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4202514A (en) * | 1978-12-18 | 1980-05-13 | Chen Cheng Kuan | Hydraulic jack device |
| CN200964798Y (en) * | 2006-06-02 | 2007-10-24 | 中国石化集团江汉石油管理局第四机械厂 | Multiple pivot height-adjustable portable drilling machine base |
| CN201102875Y (en) * | 2008-03-18 | 2008-08-20 | 中国人民解放军总参谋部陆航研究所 | Combined hydraulic jack |
| CN202208016U (en) * | 2011-09-09 | 2012-05-02 | 中国人民解放军63908部队 | Multifunctional placement rack for maintenance to power bay of large-scale equipment |
| CN202531056U (en) * | 2012-04-05 | 2012-11-14 | 中国石油天然气股份有限公司 | Adjustable pipe rod rack buttress |
| CN202754747U (en) * | 2012-08-16 | 2013-02-27 | 鞍钢集团矿业公司 | Hydraulic control lifter used for overhaul of ball grinding mill |
| CN202957492U (en) * | 2012-11-19 | 2013-05-29 | 沧州供电公司 | Special-purpose tool for overhauling circuit breaker spring mechanism |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788771A (en) * | 2019-10-18 | 2020-02-14 | 上海五钢设备工程有限公司 | Special fixture for replacing clamping cylinder of quick forging manipulator and replacing method thereof |
| CN112676805A (en) * | 2020-11-27 | 2021-04-20 | 北京星航机电装备有限公司 | Cabin penetrating sleeving tool and method for engine with large slenderness ratio |
| CN112676805B (en) * | 2020-11-27 | 2022-04-19 | 北京星航机电装备有限公司 | Cabin penetrating sleeving tool and method for engine with large slenderness ratio |
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| Publication number | Publication date |
|---|---|
| CN103878531B (en) | 2016-04-20 |
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