CN212093827U - Semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock - Google Patents
Semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock Download PDFInfo
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- CN212093827U CN212093827U CN202020661450.6U CN202020661450U CN212093827U CN 212093827 U CN212093827 U CN 212093827U CN 202020661450 U CN202020661450 U CN 202020661450U CN 212093827 U CN212093827 U CN 212093827U
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Abstract
The utility model provides a semi-automatic hydraulic pressure circle device of transferring suitable for large-scale penstock belongs to penstock preparation technical field, and the application scope of current circle device of transferring is less, the relatively poor problem of precision of transferring the circle. The adjustable support device comprises a middle support ring, adjusting seats and support rods, wherein the side wall of the middle support ring is in a regular dodecagon shape, the adjusting seats are arranged at the outer bottom of the middle support ring, the adjusting seats are fixed through bolts, one end of each support rod is arranged on the side wall of the middle support ring, the other end of each support rod is provided with a hydraulic jacking device, and the output piston end of each hydraulic jacking device is provided with a manual adjusting device; this semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock finely tunes the penstock through manual adjusting device, has improved penstock's circle adjusting precision.
Description
Technical Field
The utility model belongs to the technical field of penstock preparation, a transfer circle device is related to, especially a semi-automatic hydraulic pressure transfer circle device suitable for large-scale penstock.
Background
Steel penstock, or so-called hydrostatic steel pipe, is a steel pipe used to carry extremely high hydrostatic water flow. Penstocks are commonly used in hydroelectric power stations for water delivery, long-distance oil delivery or sewage treatment plants, or in landfills for delivery to treat water currents that have not been contaminated or have accumulated. All processes are connected closely in the process of manufacturing the pressure steel pipe and influence each other. The circle adjusting is an essential procedure, the roundness of the steel pipe directly influences the progress of subsequent procedures, and the roundness of the pressure steel pipe is ensured in order to improve the working efficiency.
Through retrieval, for example, chinese patent document discloses a steel pipe rounding device [ application number: CN 201620911579.1; publication No.: CN205949552U ]. This kind of steel pipe circle adjusting device is when using, the pre-buried base steel bar welding on connecting seat and the concrete buttress, the stand is through pouring and subaerial concrete buttress vertical fixation, and utilize the fastener to connect into whole with dead lever and removable connecting rod, when the steel pipe of other pipe diameters needs to be assembled, the dead lever is unchangeable, pull down the jack, and will go up the removable connecting rod of supporting mechanism and under bracing mechanism and tear down, choose the suitable removable connecting rod of length for use, connect it (the affair will be screwed up when connecting, with the assurance precision) with the fastener, then install the jack and carry out the steel pipe assembly after the change pipe diameter.
However, the upright post of the steel pipe rounding device is fixed by pouring with mixed soil, the height of the upright post is different, the rounding device has certain limitation on the long pressure steel pipe, the upright post is suitable for rounding with a large travel diameter in a lifting mode of a jack, the situation that the rounding of the jack is excessive exists, and then the pressure steel pipe is out of round is caused, so that the semi-automatic hydraulic rounding device suitable for the large pressure steel pipe is provided, the application range of the pressure steel pipes with different models is further expanded, and the semi-automatic hydraulic rounding device has corresponding fine tuning capacity.
SUMMERY OF THE UTILITY MODEL
The utility model aims at having above-mentioned problem to current technique, provided a semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock, the technical problem that the device will solve is: the application range of the existing circle adjusting device is small, and the accuracy of circle adjustment is poor.
The purpose of the utility model can be realized by the following technical proposal:
the utility model provides a semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock, includes middle support ring, adjustment seat and bracing piece, middle support ring lateral wall becomes regular dodecagon, and the adjustment seat sets up the outer bottom at middle support ring, and a plurality of adjustment seat is fixed through the bolt, and the one end setting of bracing piece is on the lateral wall of middle support ring, and the other end of bracing piece is provided with hydraulic pressure jacking device, and hydraulic pressure jacking device's output piston end is provided with manual adjusting device.
The utility model discloses a theory of operation is: when the whole device is used, the adjusting seat formed by assembly welding is fixed on the flat ground by using expansion bolts or anchor bolts, the adjusting seat can be fixed on the flat ground according to the field condition, selecting corresponding quantity to assemble, completing the assembly by bolt groups, adapting to different installation heights, fixedly installing the middle support ring, the adjusting seat, the support rod, the hydraulic jacking device and the manual adjusting device by the bolt groups, measuring the diameter of the rounding device after the installation and the molding, adjusting to the parameter state of the rounding of the pressure steel pipe, a lifting ring screw is arranged on the end surface of the middle support ring, the assembled semi-automatic hydraulic circle adjusting device is hoisted by using tools such as a gantry crane or a crown block and is arranged on an adjusting seat fixed in advance, the center is connected by a fixed pin, the rotation is ensured to be free from blocking, adopt bolt assembly to lock under irrotational state, hydraulic pressure jacking device and manual adjusting device on the bracing piece can play the effect of accent circle in the welding process of assembling of pressure steel pipe.
The inner side surface of the middle support ring is fixed with a rib plate, the middle support ring and the rib plate are both provided with first mounting holes, and the bottom of the middle support ring is provided with a pin hole and a second mounting hole.
Structure more than adopting, the gusset welding is on the medial surface of middle support ring to strengthen fixing device overall structure intensity, first mounting hole pass through bolt group and fix the one end of bracing piece on middle support ring, the pinhole of middle support ring is convenient for insert the fixed pin, guarantees that middle support ring is rotatory not have the card and hinders, and second fixed mounting hole can be under the irrotational condition of middle support ring through bolt group with middle support ring locking on the adjustment seat.
The adjusting seat comprises a first steel pipe and a first flange plate, the first flange plate is fixed at two ends of the first steel pipe respectively, and a pin shaft connecting hole and a third mounting hole are formed in the first flange plate.
The structure more than adopting, the round pin axle connecting hole is convenient for will insert the fixed pin, installs middle support ring, and the third mounting hole is installed a plurality of adjustment seats and middle support rod through bolt group, and the adjustment seat can be according to the on-the-spot condition, selects corresponding quantity to assemble, has adapted to different mounting height.
The support rod comprises a second steel pipe, a square mounting plate is fixed at one end of the second steel pipe, a hole is formed in the square mounting plate, a second flange is fixed at the other end of the second steel pipe, and a hole is formed in the second flange.
The structure more than adopting, the square mounting panel that the second steel pipe was served is installed on the first mounting hole on the support ring in the middle of through bolt group, and then plays the fixed action to the second steel pipe, and the hole on the second ring flange passes through bolt group fixed mounting hydraulic pressure jacking device.
The hydraulic jacking device comprises a hydraulic jack, the bottom of the hydraulic jack and the output piston end are both fixed with a third flange plate, and a fourth mounting hole is formed in the third flange plate.
The third flange plate at the bottom of the hydraulic jack with the structure is fixedly arranged on the second flange plate through a bolt group, the hydraulic jack is further fixed and connected with a hydraulic system, each hydraulic jack can be integrally or independently jacked and also can be locked at any time in a non-working state, the hydraulic system mainly comprises a high-pressure oil pump, a jack cluster, a check valve, a pressure reducing valve, a hydraulic hose and the like, the high-pressure oil pump, the check valve and an electromagnetic overflow valve form an oil supply loop, the pressure reducing valve and the pressure sensor form a force closed loop, pressure feedback is provided for the system, and the force closed loop and a corresponding displacement sensor (a grating ruler) form a displacement closed loop system, so that double control of force and displacement is realized, and the third flange plate at the output piston end of the hydraulic jack fixes a manual adjusting device through the bolt group.
The manual adjusting device comprises a top column base and a top column screw rod, a threaded hole is formed in the end portion of the top column base, a fourth flange plate is fixed to the bottom of the top column base, a fifth mounting hole is formed in the fourth flange plate, threads are arranged at one end of the top column screw rod, the top column screw rod is screwed into the top column base through thread matching, the other end of the top column screw rod is spherical, and a stress application groove and a stress application hole are formed in the top column screw rod.
Structure more than adopting, the fifth mounting hole on the fourth ring flange passes through bolt group fixed mounting on the fourth mounting hole of third ring flange, and then fixes manual adjusting device, and the globular end of fore-set screw rod is through quenching treatment to strengthen its intensity and abrasion resistance, afterburning recess and afterburning hole can be convenient for use afterburning instrument and spanner at accommodation process, increase moment, the application of force of being convenient for.
And a connecting plate is fixed on the second steel pipe, a long hole is formed in the connecting plate, one end of each connecting angle steel is fixed on the long hole through a bolt, and the other end of each connecting angle steel is fixed on the connecting plate of the adjacent second steel pipe through a bolt.
By adopting the structure, the connecting angle steel is used for connecting and fixing the support rod piece, and is fixed through the bolt, so that convenience in field installation and disassembly is ensured.
Compared with the prior art, this semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock has following advantage:
1. the spare part among this device is connected through the bolt, to the adjustment seat, is convenient for confirm quantity according to the site conditions, and then is applicable to the penstock of different length, and has simplified the installation, is convenient for assemble and dismantle, realizes the purpose that can operate repeatedly.
2. Through hydraulic jack cooperation hydraulic system, can carry out the jacking process fast, realize the accent circle semi-automatization, practice thrift the cost of labor greatly, improve production efficiency.
3. The pressure round pipe is finely adjusted through the manual adjusting device, and the rounding precision of the pressure round pipe is improved.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic plan view of the present invention;
FIG. 3 is a schematic plan view of the middle support ring according to the present invention;
FIG. 4 is a schematic structural view of the adjusting seat of the present invention;
FIG. 5 is a schematic structural view of the support rod of the present invention;
fig. 6 is a schematic structural diagram of a hydraulic jacking device in the present invention;
FIG. 7 is a schematic view of the three-dimensional structure of the middle manual adjusting device of the present invention
Fig. 8 is a schematic sectional structure view of the manual adjusting device of the present invention;
fig. 9 is an electrical schematic diagram of the hydraulic system of the present invention;
in the figure: 1. an intermediate support ring; 101. a rib plate; 102. a first mounting hole; 103. a pin hole; 104. a second mounting hole; 2. an adjusting seat; 201. a first steel pipe; 202. a first flange plate; 203. connecting a pin shaft with a hole; 204. a third mounting hole; 3. a support bar; 301. a second steel pipe; 302. a square mounting plate; 303. a second flange plate; 304. a connecting plate; 305. a long hole; 4. a hydraulic jacking device; 401. a hydraulic jack; 402. a third flange plate; 403. a fourth mounting hole; 5. a manual adjustment device; 501. a jack post seat; 502. a fourth flange plate; 503. a fifth mounting hole; 504. a post head screw; 505. a stress application groove; 506. a force application hole; 6. and connecting angle steel.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
Referring to fig. 1-8, the present embodiment provides a semi-automatic hydraulic rounding device suitable for large-scale pressure steel pipes, which includes a middle support ring 1, adjusting seats 2 and support rods 3, wherein the side wall of the middle support ring 1 is regular dodecagon, the adjusting seats 2 are disposed at the outer bottom of the middle support ring 1, a plurality of adjusting seats 2 are fixed by bolts, one end of each support rod 3 is disposed on the side wall of the middle support ring 1, the other end of each support rod 3 is provided with a hydraulic jacking device 4, and the output piston end of each hydraulic jacking device 4 is provided with a manual adjusting device 5. in the present embodiment, when the whole device is used, the adjusting seats 2 formed by assembly welding are firstly fixed on a flat ground by using expansion bolts or anchor bolts, the adjusting seats 2 can be assembled by selecting corresponding number according to the field conditions, the assembly is completed by bolt groups, and are adapted to different installation, middle support ring 1, adjusting seat 2, bracing piece 3, all through bolt assembly fixed mounting between hydraulic jacking device 4 and the manual adjusting device 5, measure the accent circle device diameter after the dress shaping, adjust the parameter state of pressure steel pipe accent circle, install eyebolt on the terminal surface of middle support ring 1, the semi-automatic hydraulic pressure accent circle device that the instrument hoist and mount was assembled such as application door machine or overhead traveling crane, install on adjusting seat 2 fixed in advance, the center is connected with the fixed pin, guarantee rotatory nothing card hinders, adopt bolt assembly to lock under irrotational state, hydraulic jacking device 4 and manual adjusting device 5 on the bracing piece 3 can play the effect of transferring the circle in the assembly welding process of pressure steel pipe.
Be fixed with gusset 101 on the medial surface of middle support ring 1, first mounting hole 102 has all been seted up on middle support ring 1 and gusset 101, pinhole 103 and second mounting hole 104 have been seted up to the bottom of middle support ring 1, in this embodiment, gusset 101 welds on the medial surface of middle support ring 1, in order to strengthen fixing device overall structure intensity, first mounting hole 102 passes through bolt group and fixes the one end of bracing piece 3 on middle support ring 1, the pinhole 103 of middle support ring 1 is convenient for insert the fixed pin, guarantee that middle support ring 1 is rotatory not to have the card to hinder, second fixed mounting hole 104 can be under the irrotational condition of middle support ring 1 through bolt group with middle support ring 1 locking on adjustment seat 2.
Adjusting seat 2 includes first steel pipe 201 and first ring flange 202, first ring flange 202 is fixed respectively on the both ends of first steel pipe 201, round pin connecting hole 203 and third mounting hole 204 have been seted up on the first ring flange 202, in this embodiment, round pin connecting hole 203 is convenient for will insert the fixed pin, install middle support ring 1, third mounting hole 204 is installed a plurality of adjusting seats 2 and middle bracing piece 1 through the bolt group, adjusting seat 2 can be according to the on-the-spot condition, select corresponding quantity to assemble, different mounting heights have been adapted to.
The bracing piece 3 includes second steel pipe 301, the one end of second steel pipe 301 is fixed with square mounting panel 302, it is porose to set up on the square mounting panel 302, be fixed with second ring flange 303 on the other end of second steel pipe 301, it is porose to set up on the second ring flange 303, in this embodiment, the square mounting panel 302 of one of second steel pipe 301 is installed on the first mounting hole 102 on middle support ring 1 through bolt group, and then play the fixed action to second steel pipe 301, the hole on the second ring flange 303 is through bolt group fixed mounting hydraulic pressure jacking device 4.
The hydraulic jacking device 4 comprises a hydraulic jack 401, a third flange plate 402 is fixed at the bottom of the hydraulic jack 401 and at the output piston end, a fourth mounting hole 403 is formed in the third flange plate 402, in the embodiment, the third flange plate 402 at the bottom of the hydraulic jack 401 is fixedly mounted on the second flange plate 303 through a bolt group so as to fix the hydraulic jack 401, the hydraulic jack 401 is connected with a hydraulic system, each hydraulic jack can be jacked integrally or individually and can also be locked at any time in an idle state, the hydraulic system mainly comprises a high-pressure oil pump, a jack cluster, a check valve, a pressure reducing valve, a hydraulic hose and the like, the high-pressure oil pump, the check valve and an electromagnetic overflow valve form an oil supply loop, a closed loop consisting of the pressure reducing valve and a pressure sensor forms a force, pressure feedback is provided for the system and forms a displacement closed loop system with a corresponding displacement sensor (grating ruler), thereby realizing the double control of force and displacement, and the third flange plate 402 at the output piston end of the hydraulic jack 401 fixes the manual adjusting device 5 through a bolt group.
The manual adjusting device 5 comprises a top column base 501 and a top column screw rod 504, a threaded hole is formed in the end portion of the top column base 501, a fourth flange plate 502 is fixed at the bottom of the top column base 501, a fifth mounting hole 503 is formed in the fourth flange plate 502, a thread is formed at one end of the top column screw rod 504, the top column screw rod 504 is screwed into the top column base 501 through thread fit, the other end of the top column screw rod 504 is spherical, a stress application groove 505 and a stress application hole 506 are formed in the top column screw rod 504, in this embodiment, the fifth mounting hole 503 of the fourth flange 502 is fixedly mounted on the fourth mounting hole 403 of the third flange 402 by a bolt set, further fixing the manual adjusting device 5, quenching the spherical end of the top pillar screw 504, to enhance the strength and wear resistance, the force application groove 505 and the force application hole 506 can facilitate the use of a force application tool and a wrench during the adjustment process, increase the torque, and facilitate the application of force.
The connecting plate 304 is fixed on the second steel pipe 301, the long hole 305 is formed in the connecting plate 304, one end of each connecting angle steel 6 is fixed on the corresponding long hole 305 through a bolt, the other end of each connecting angle steel 6 is fixed on the corresponding connecting plate 304 of the adjacent second steel pipe 301 through a bolt, in the embodiment, each connecting angle steel is used for connecting and fixing the support rod pieces, and the connecting angle steel 6 is fixed through a bolt, so that convenience in field installation and disassembly is guaranteed.
The utility model discloses a theory of operation:
when the whole device is used, firstly, an adjusting seat 2 formed by assembling and welding is fixed on a flat ground by using expansion bolts or anchor bolts, the adjusting seat 2 can be assembled by selecting corresponding quantity according to the field condition, the assembly is completed by the bolt group and is adapted to different installation heights, the middle support ring 1, the adjusting seat 2, the support rod 3, the hydraulic jacking device 4 and the manual adjusting device 5 are fixedly installed by the bolt group, the diameter of the circle adjusting device is measured after the assembly and the molding, the parameter state of the pressure steel pipe circle adjustment is adjusted, a lifting ring screw is installed on the end surface of the middle support ring 1, the assembled semi-automatic hydraulic circle adjusting device is hoisted by using tools such as a gantry crane or a crown block and is installed on the adjusting seat 2 fixed in advance, the center is connected by using a fixed pin, the rotation is ensured to have no blocking, the locking is carried out by using the bolt group under the non-rotation state, and the hydraulic jack, a hydraulic power unit controls 12 hydraulic jacks through 12 oil pipes of 12m, each hydraulic jack can be integrally or independently jacked, and can also be locked at any time in a non-working state, the spherical end of a jacking column screw rod 504 is driven to jack the inner wall of a pressure steel pipe through an output piston of the hydraulic jack 401, in the outward movement process of the hydraulic jack 401, the pressure steel pipe is rounded, when fine adjustment is needed, a wrench clamps the outer wall of a stressing groove 505 or stretches a stressing tool into a stressing hole 506, the moment is increased, force application is facilitated, the jacking column screw rod 504 is rotated, as the jacking column screw rod 504 is screwed into a jacking column seat 501 through thread matching, under the action of external force, the jacking column screw rod 504 can stretch out, and then fine adjustment is carried out on a pressure circular pipe.
In conclusion, the parts in the device are connected through the bolts, the number of the adjusting seats can be conveniently determined according to the field situation, the adjusting seats are further suitable for pressure steel pipes with different lengths, the installation process is simplified, the assembling and the disassembling are convenient, and the aim of repeated operation is fulfilled; simultaneously, the hydraulic jack is matched with a hydraulic system, the jacking process can be rapidly carried out, the semi-automation of rounding is realized, the labor cost is greatly saved, the production efficiency is improved, the pressure circular pipe is finely tuned through a manual adjusting device, and the rounding precision of the pressure steel pipe is improved.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (7)
1. The utility model provides a semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock, includes middle support ring (1), adjustment seat (2) and bracing piece (3), its characterized in that, middle support ring (1) lateral wall becomes regular dodecagon, and adjustment seat (2) set up in the outer bottom of middle support ring (1), and a plurality of adjustment seat (2) are fixed through the bolt, and the one end setting of bracing piece (3) is on the lateral wall of middle support ring (1), and the other end of bracing piece (3) is provided with hydraulic pressure jacking device (4), and the output piston end of hydraulic pressure jacking device (4) is provided with manual adjusting device (5).
2. The semi-automatic hydraulic rounding device suitable for the large-sized pressure steel pipe according to claim 1 is characterized in that a rib plate (101) is fixed on the inner side surface of the middle support ring (1), first mounting holes (102) are formed in the middle support ring (1) and the rib plate (101), and a pin hole (103) and a second mounting hole (104) are formed in the bottom of the middle support ring (1).
3. The semi-automatic hydraulic rounding device suitable for the large-sized pressure steel pipe according to claim 2, wherein the adjusting seat (2) comprises a first steel pipe (201) and a first flange (202), the first flange (202) is respectively fixed on two ends of the first steel pipe (201), and a pin connecting hole (203) and a third mounting hole (204) are formed in the first flange (202).
4. The semi-automatic hydraulic rounding device suitable for the large-sized pressure steel pipe is characterized in that the supporting rod (3) comprises a second steel pipe (301), a square mounting plate (302) is fixed to one end of the second steel pipe (301), a hole is formed in the square mounting plate (302), a second flange plate (303) is fixed to the other end of the second steel pipe (301), and a hole is formed in the second flange plate (303).
5. The semi-automatic hydraulic rounding device suitable for the large-sized pressure steel pipe is characterized in that the hydraulic jacking device (4) comprises a hydraulic jack (401), a third flange plate (402) is fixed to the bottom of the hydraulic jack (401) and the end of an output piston, and a fourth mounting hole (403) is formed in the third flange plate (402).
6. The semi-automatic hydraulic rounding device suitable for the large-sized pressure steel pipe is characterized in that the manual adjusting device (5) comprises a top column base (501) and a top column screw rod (504), a threaded hole is formed in the end portion of the top column base (501), a fourth flange (502) is fixed to the bottom of the top column base (501), a fifth mounting hole (503) is formed in the fourth flange (502), a thread is formed in one end of the top column screw rod (504), the top column screw rod (504) is screwed into the top column base (501) through thread matching, the other end of the top column screw rod (504) is spherical, and a stress application groove (505) and a stress application hole (506) are formed in the top column screw rod (504).
7. The semi-automatic hydraulic rounding device suitable for the large-sized pressure steel pipes according to claim 4 is characterized in that a connecting plate (304) is fixed on the second steel pipe (301), a long hole (305) is formed in the connecting plate (304), one end of a connecting angle steel (6) is fixed on the long hole (305) through a bolt, and the other end of the connecting angle steel (6) is fixed on the connecting plate (304) of the adjacent second steel pipe (301) through a bolt.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020661450.6U CN212093827U (en) | 2020-04-27 | 2020-04-27 | Semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020661450.6U CN212093827U (en) | 2020-04-27 | 2020-04-27 | Semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock |
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| CN212093827U true CN212093827U (en) | 2020-12-08 |
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| CN202020661450.6U Active CN212093827U (en) | 2020-04-27 | 2020-04-27 | Semi-automatic hydraulic pressure circle adjusting device suitable for large-scale penstock |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733029A (en) * | 2021-09-03 | 2021-12-03 | 中国水电四局（兰州）机械装备有限公司 | Automatic circle of transferring of penstock adds strength ring assembly fixture |
| CN113802859A (en) * | 2021-09-09 | 2021-12-17 | 中冶天工集团有限公司 | Device and method for positioning center of inclined pipeline |
-
2020
- 2020-04-27 CN CN202020661450.6U patent/CN212093827U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113733029A (en) * | 2021-09-03 | 2021-12-03 | 中国水电四局（兰州）机械装备有限公司 | Automatic circle of transferring of penstock adds strength ring assembly fixture |
| CN113733029B (en) * | 2021-09-03 | 2022-11-25 | 中国水电四局（兰州）机械装备有限公司 | Automatic circle of transferring of penstock adds strength ring assembly fixture |
| CN113802859A (en) * | 2021-09-09 | 2021-12-17 | 中冶天工集团有限公司 | Device and method for positioning center of inclined pipeline |
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