CN111717781A - Hoisting device for converter valve external cooling fan and application - Google Patents
Hoisting device for converter valve external cooling fan and application Download PDFInfo
- Publication number
- CN111717781A CN111717781A CN202010664049.2A CN202010664049A CN111717781A CN 111717781 A CN111717781 A CN 111717781A CN 202010664049 A CN202010664049 A CN 202010664049A CN 111717781 A CN111717781 A CN 111717781A
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- CN
- China
- Prior art keywords
- support frame
- fan
- converter valve
- cooling fan
- external cooling
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- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/18—Band-type slings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/14—Power transmissions between power sources and drums or barrels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention relates to the field of ultrahigh-voltage direct-current power transmission, and discloses a lifting device of an external cooling fan of a converter valve. The lifting device is low in cost, can flexibly lift the fan on a platform at a high position for maintenance operation, and is low in operation intensity and safe in operation process. Most importantly, the fan replacing operation process can be completed by one person without the assistance of multiple persons or the assistance of a crane, so that the operation cost is greatly reduced, the labor intensity is moderate, and the operation is safe.
Description
Technical Field
The invention relates to the technical field of ultrahigh-voltage direct-current power transmission, in particular to a lifting device of an external cooling fan of a converter valve and application of the lifting device.
Background
The converter valve is a core component for realizing the conversion between alternating current and direct current of the converter station, and bears the influence of large current and high voltage when the converter valve normally operates. Therefore, an efficient and reliable valve cooling system is the key to ensure the safe and reliable operation of the converter valve. The valve cooling system comprises an inner valve cooling water system and an outer valve cooling water system, wherein the inner valve cooling water system is responsible for efficiently and reliably taking away heat generated by current passing through the converter valve, and is driven by the circulating water pump to be fed into a heat exchange coil of the outer valve cooling water system; the valve external cold water system is responsible for discharging the heat of the valve internal cold water system to the atmospheric environment, and the valve external cold water system and the valve internal cold water system cooperate to complete the continuous cooling of the converter valve. The external valve cold water system indirectly controls the heat dissipation of the converter valve, so that the safe and stable operation of the external valve cold water system is very important for the safe and stable operation of the converter valve.
The existing external valve cold water system, especially the external valve cold water system comprising an open type cooling water circulation device, mainly comprises a cooling fan, wherein the cooling fan is generally arranged outside a converter valve to cool water flow in a heat exchange coil; because the heat exchange coil pipes are generally arranged at higher positions, the cooling fans are also arranged at higher positions when being placed, and are generally arranged on a frame platform with the height of about 5 meters above the ground, if the fans are failed and need to be replaced, because the weight of a single cooling fan is at least 40kg, the fans are lifted to the platform with the height of 5 meters along a stair on one side for replacement and installation by 2 persons in the prior art, and when two persons carry the fans in a coordinated manner, the labor intensity is high, the fans are inconvenient to hold, and certain potential safety hazards exist; if a crane is adopted for operation, the fault fan is lifted to the ground, the new fan is lifted to the surface of the platform, the crane is used for replacing the fan every time, the cost waste is large, and the cost performance is low.
Disclosure of Invention
The invention aims to provide a lifting device for an external cooling fan of a converter valve, which can flexibly carry out fan maintenance operation by one person, has low operation intensity and safer operation process
The invention aims to provide an application of a lifting device in fan lifting.
The embodiment of the invention is realized by the following steps:
the lifting device of the converter valve external cooling fan comprises a fixing frame, wherein the fixing frame comprises a supporting frame and supporting legs, and a driving mechanism for lifting the fan is arranged on the supporting frame.
Further, the driving mechanism comprises a traction device used for driving the fan to move along the vertical direction, and a driving device used for driving the fan to move along the horizontal direction.
Furthermore, the traction device comprises a guide rail arranged at the top of the support frame, a first pulley connected with the guide rail in a sliding manner, a hoisting mechanism arranged at one end of the guide rail and a hanging strip wound on the hoisting mechanism, wherein the hanging strip winds around the first pulley and vertically downwards to fix the fan.
Further, the guide rail is connected with a sliding block in a sliding mode, a pulley mounting seat is arranged at the bottom of the sliding block, and the first pulley is fixed in the pulley mounting seat in a rotatable mode.
Furthermore, the hoisting mechanism comprises a roller mounting seat arranged at one end of the guide rail, a hoisting roller fixed in the roller mounting seat in a rotatable manner and a driving piece for driving the hoisting roller to rotate.
Further, the driving piece comprises a driven gear rotationally connected with the winch drum, a driving gear meshed with the driven gear, and a gear handle penetrating through the driving gear.
Furthermore, the driving device comprises a folding telescopic rod arranged at one end of the pulley mounting seat, second pulleys are arranged at two ends of the top of the folding telescopic rod, the second pulley at one end, close to the pulley mounting seat, of the folding telescopic rod is connected with the pulley mounting seat, and the second pulley at one end, far away from the pulley mounting seat, of the folding telescopic rod is fixed on the guide rail through a fixing seat; one side of the folding telescopic rod is also provided with a driving mechanism for driving the folding telescopic rod to stretch.
Further, actuating mechanism includes positive and negative lead screw to and the symmetry sets up the fixed block in folding telescopic link both ends, two fixed blocks respectively with the both ends threaded connection of positive and negative lead screw.
Further, a hook is arranged at the bottom of the hanging strip; the top end face of the fan is provided with a plurality of lifting ropes matched with the hooks.
Furthermore, the support frame comprises a first support frame and a second support frame which are horizontally arranged, the first support frame is fixedly arranged at the front end of the second support frame, and the support legs are arranged at the bottom of the second support frame; the guide rail is horizontally arranged along the first support frame and the second support frame.
Furthermore, a support rod is obliquely arranged between one end, far away from the second support frame, of the first support frame and the adjacent support leg.
Further, the distance between two adjacent supporting legs is greater than the diameter of the fan, and the height of the supporting legs is greater than the height of the fan.
Furthermore, one side of the second support frame, which is far away from the first support frame, is provided with a fixed support, the fixed support comprises a first fixed rod and a second fixed rod, the first fixed rod is perpendicular to the support legs, the second fixed rod is perpendicular to the first fixed rod, and one end of the first fixed rod is connected with the support legs in a sliding mode.
Further, the second fixing rod is connected with the first fixing rod in a sliding mode.
The application of the lifting device for the converter valve external cooling fan in lifting the fan is disclosed.
The invention has the beneficial effects that:
the lifting device is low in cost, can flexibly lift the fan on a platform at a high position for maintenance operation, and is low in operation intensity and safe in operation process. Most importantly, the fan replacing operation process can be completed by one person without the assistance of multiple persons or the assistance of a crane, so that the operation cost is greatly reduced, the labor intensity is moderate, and the operation is safe.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a lifting device of an external cooling fan of a converter valve according to an embodiment of the invention;
FIG. 2 is a schematic structural diagram of a driving mechanism according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a hoisting mechanism according to an embodiment of the present invention.
Icon: 1-a fixed frame, 11-a first support frame, 12-a second support frame, 13-a support leg, 14-a first fixed rod, 15-a second fixed rod, 2-a traction device, 21-a guide rail, 22-a slide block, 23-a pulley mounting seat, 24-a first pulley, 25-a sling, 26-a hook, 27-a hoisting mechanism, 271-a roller mounting seat, 272-a hoisting roller, 273-a driven gear, 274-a driving gear, 275-a gear handle, 3-a driving device, 31-a folding telescopic rod, 32-a second pulley, 33-a fixed seat, 34-a driving mechanism, 341-a screw rod handle, 342-a positive and negative screw rod, 343-a fixed block, 4-a fan and 41-a lifting rope.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
The terms "parallel", "perpendicular", etc. do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures are necessarily perfectly parallel, but may be slightly tilted.
The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal, vertical or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1 to 3, the embodiment provides a lifting device for a converter valve external cooling fan, which includes a fixed frame 1, where the fixed frame 1 includes a support frame and support legs 13, and a driving mechanism 34 for lifting and lifting the fan 4 is disposed on the support frame.
In the present embodiment, the driving mechanism 34 includes a traction device 2 for driving the fan 4 to move in the vertical direction, and a driving device 3 for driving the fan 4 to move in the horizontal direction.
In the embodiment, the traction device 2 comprises a guide rail 21 arranged at the top of the fixed frame 1, the guide rail 21 is connected with a sliding block 22 in a sliding manner, the bottom of the sliding block 22 is provided with a pulley mounting seat 23, and a first pulley 24 is fixed in the pulley mounting seat 23 in a rotatable manner; one end of the guide rail 21 is provided with a winding mechanism 27 and a hanging strip 25 wound on the winding mechanism 27, the hanging strip 25 is vertically and downwards arranged around the first pulley 24, and the hanging strip 25 is used for fixing the fan 4; in use, the harness 25 is tightened or paid out by the winding mechanism 27, and the harness 25 moves up or down along the first pulley 24, thereby raising or lowering the fan 4.
In this embodiment, the hoisting mechanism 27 includes a roller mounting seat 271 disposed at one end of the guide rail 21, a hoisting roller 272 rotatably fixed in the roller mounting seat 271, and a driving member for driving the hoisting roller 272 to rotate, specifically, the driving member includes a driven gear 273 rotatably connected to the hoisting roller 272, a driving gear 274 engaged with the driven gear 273, and a gear handle 275 penetrating through the driving gear 274; during the use, drive driving gear 274 through rocking gear handle 275 and rotate, driving gear 274 drive impulse gear rotates for hoist cylinder 272 rotates, thereby will twine the suspender 25 on hoist cylinder 272 and emit or tighten up, thereby utilize suspender 25 to drive fan 4 along vertical direction removal.
In this embodiment, the driving device 3 includes a folding telescopic rod 31 disposed at one end of the pulley mounting seat 23, the two ends of the top of the folding telescopic rod 31 are both provided with a second pulley 32, the second pulley 32 at one end of the folding telescopic rod 31 close to the pulley mounting seat 23 is connected with the pulley mounting seat 23, and the second pulley 32 at one end of the folding telescopic rod 31 far from the pulley mounting seat 23 is fixed on the guide rail 21 through a fixing seat 33; a driving mechanism 34 for driving the folding telescopic rod 31 to extend and retract is further arranged on one side of the folding telescopic rod 31; because of folding telescopic link 31 one end is fixed, and the other end is connected with pulley mount pad 23, when actuating mechanism 34 drive folding telescopic link 31 flexible, the one end that folding telescopic link 31 and pulley mount pad 23 are connected can drive pulley mount pad 23 and remove along guide rail 21 to drive fan 4 along the horizontal direction back-and-forth movement.
In this embodiment, the driving mechanism 34 includes a positive and negative screw rod 342 and two fixing blocks 343 symmetrically disposed at two ends of the foldable telescopic rod 31, and the two fixing blocks 343 are respectively in threaded connection with two ends of the positive and negative screw rod 342.
In the embodiment, the bottom of the hanging strip 25 is provided with a hook 26; a plurality of lifting ropes 41 matched with the hooks 26 are circumferentially arranged on the fan 4; thereby making the fixation of the harness 25 to the fan 4 more stable.
In this embodiment, the support frames include a first support frame 11 and a second support frame 12 which are horizontally arranged, the first support frame 11 is fixedly arranged at the front end of the second support frame 12, and the support legs 13 are arranged at the bottom of the second support frame 12; the guide rail 21 is horizontally arranged along the first support frame 11 and the second support frame 12, and a support rod is obliquely arranged between one end of the first support frame 11, which is far away from the second support frame 12, and the adjacent support leg 13; the linear guide rail 21 and the first support frame 11 form a cantilever structure through the support rods of the inclined supports, so that the fan 4 can be suspended outside the platform when the lifting trolley is pushed to the edge of the platform, and the fan 4 can be conveniently lifted to the ground or the fresh air fan 4 on the ground can be conveniently lifted to the platform.
In the embodiment, the distance between two adjacent supporting legs 13 is greater than the diameter of the fan 4, and the height of the supporting legs 13 is greater than the height of the fan 4; and the trolley can smoothly pass above the installed fan 4 when moving on the platform.
In the embodiment, a fixing bracket is arranged on one side of the second support frame 12 far away from the first support frame 11, the fixing bracket comprises a first fixing rod 14 arranged perpendicular to the support leg 13 and a second fixing rod 15 perpendicularly connected with the first fixing rod 14, and one end of the first fixing rod 14 is slidably connected with the support leg 13; the auxiliary fixing support of the trolley can vertically move up and down along the two supporting legs 13 of the trolley, the auxiliary fixing support of the trolley rises to the highest position in the movement process of the trolley, the trolley can freely move unaffected, and when the trolley moves to the edge of the platform to be lifted, the auxiliary fixing support of the trolley drops to the lower position, so that the second fixing rod 15 can be inserted into a process gap of the platform, the trolley is firmly fixed on the platform, and the safety in the lifting operation process is ensured.
In this embodiment, the second fixing rod 15 is slidably connected to the first fixing rod 14; therefore, the position of the second fixing rod 15 can be adjusted according to the distance between the process gaps of the platform, so that the second fixing rod 15 can be better inserted into the process gaps of the platform, and the trolley can be more firmly fixed.
The working principle is as follows: when in use, the lifting trolley is placed on the platform; when the fan 4 is lifted upwards to the platform from the ground: the trolley is pushed to the edge of the platform, a space is reserved for the fan 4 due to the fact that the front end of the trolley is of a cantilever structure, the hanging strip 25 is adjusted to the front end of the trolley, the hanging strip 25 is lowered to the ground, a hanging rope 41 on the fan 4 is hung through a hook 26 at the bottom of the hanging strip 25, the fan 4 is fixed, then the winding mechanism 27 is shaken, the hanging strip 25 is tightened, and the fan 4 is lifted upwards; when fan 4 hangs to the platform on, wave positive and negative lead screw 342 and make two fixed blocks 343 remove in opposite directions, thereby will fold telescopic link 31 and contract, because of folding telescopic link 31 one end is fixed, the other end is connected with pulley mount pad 23, when folding telescopic link 31 contracts, the one end that folding telescopic link 31 and pulley mount pad 23 are connected can drive pulley mount pad 23 and retract along guide rail 21, thereby move fan 4 along the horizontal direction backward, when fan 4 moves to second support frame 12 bottom, can promote the handling dolly and move the position that needs and put down fan 4 and install.
When the fan 4 is carried down from the platform to the ground: the trolley is pushed to a specified position, a lifting rope 41 on the fan 4 is hung by a hook 26 at the bottom of the hanging strip 25, so that the fan 4 is fixed, then the trolley is pushed to the edge of the platform, then the positive and negative screw rods 342 are shaken to enable the two fixing blocks 343 to move relatively, so that the folding telescopic rod 31 is extended, as one end of the folding telescopic rod 31 is fixed and the other end of the folding telescopic rod 31 is connected with the pulley mounting seat 23, when the folding telescopic rod 31 is extended, the end, connected with the pulley mounting seat 23, of the folding telescopic rod 31 can drive the pulley mounting seat 23 to move forwards along the guide rail 21, so that the fan 4 moves forwards along the; when the fan 4 moves to the bottom of the first support frame 11, the harness 25 is paid out by the winding mechanism 27, thereby lowering the fan 4 down to the ground.
The application of the lifting device for the converter valve external cooling fan in lifting the fan is disclosed.
The whole mechanism frame of the lifting device is formed by splicing aluminum alloy sections, the weight of the mechanism is reduced to the maximum extent, the weight of the whole mechanism is controlled within 20kg, and the mechanism frame is connected in a mode that the shell is connected in a threaded manner, so that the lifting device can be disassembled and assembled on site, and the lifting device can be conveniently conveyed to an upper platform and a lower platform.
In conclusion, the lifting device is low in cost, can flexibly lift the fan on a platform at a high position for maintenance operation, is low in operation intensity, and is safe in operation process. Most importantly, the fan replacing operation process can be completed by one person without the assistance of multiple persons or the assistance of a crane, so that the operation cost is greatly reduced, the labor intensity is moderate, and the operation is safe.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The lifting device of the converter valve external cooling fan is characterized by comprising a fixing frame, wherein the fixing frame comprises a supporting frame and supporting legs, and a driving mechanism for lifting and lifting the fan is arranged on the supporting frame.
2. The trolley for a converter valve external cooling fan of claim 1, wherein the driving mechanism comprises a traction device for driving the fan to move in a vertical direction and a driving device for driving the fan to move in a horizontal direction.
3. The lifting device of the converter valve external cooling fan according to claim 2, wherein the traction device comprises a guide rail arranged at the top of the support frame, a first pulley connected with the guide rail in a sliding manner, a hoisting mechanism arranged at one end of the guide rail and a hanging strip wound on the hoisting mechanism, and the hanging strip winds around the first pulley and vertically downwards to fix the fan.
4. The lifting device of the converter valve external cooling fan according to claim 3, wherein a sliding block is connected to the guide rail in a sliding mode, a pulley mounting seat is arranged at the bottom of the sliding block, and the first pulley is rotatably fixed in the pulley mounting seat.
5. The lifting device for the external cooling fan of the converter valve as claimed in claim 3, wherein the hoisting mechanism comprises a roller mounting seat arranged at one end of the guide rail, a hoisting roller fixed in the roller mounting seat in a rotatable manner, and a driving member for driving the hoisting roller to rotate.
6. The lifting device of the converter valve external cooling fan according to claim 2, wherein the driving device comprises a folding telescopic rod arranged at one end of the pulley mounting seat, second pulleys are arranged at two ends of the top of the folding telescopic rod, the second pulley at one end of the folding telescopic rod close to the pulley mounting seat is connected with the pulley mounting seat, and the second pulley at one end of the folding telescopic rod far away from the pulley mounting seat is fixed on the guide rail through a fixing seat; one side of the folding telescopic rod is also provided with a driving mechanism for driving the folding telescopic rod to stretch.
7. The lifting device for the converter valve external cooling fan according to claim 6, wherein the driving mechanism comprises a positive and negative screw rod and fixing blocks symmetrically arranged at two ends of the folding telescopic rod, and the two fixing blocks are respectively in threaded connection with two ends of the positive and negative screw rod.
8. The lifting device of the converter valve external cooling fan according to claim 1, wherein the support frames comprise a first support frame and a second support frame which are horizontally arranged, the first support frame is fixedly arranged at the front end of the second support frame, and the support legs are arranged at the bottom of the second support frame; the guide rail is horizontally arranged along the first support frame and the second support frame.
9. The overhead hoist of the converter valve external cooling fan of claim 8, wherein a fixing bracket is arranged on one side of the second support frame away from the first support frame, the fixing bracket comprises a first fixing rod arranged perpendicular to the support leg and a second fixing rod vertically connected with the first fixing rod, and one end of the first fixing rod is slidably connected with the support leg.
10. The application of the lifting device of the converter valve external cooling fan in any one of claims 1-9 in fan lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010664049.2A CN111717781B (en) | 2020-07-10 | 2020-07-10 | Hoisting device for converter valve external cooling fan and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010664049.2A CN111717781B (en) | 2020-07-10 | 2020-07-10 | Hoisting device for converter valve external cooling fan and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111717781A true CN111717781A (en) | 2020-09-29 |
| CN111717781B CN111717781B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010664049.2A Active CN111717781B (en) | 2020-07-10 | 2020-07-10 | Hoisting device for converter valve external cooling fan and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105650914A (en) * | 2016-03-29 | 2016-06-08 | 天峨县全盛蜂业科技有限公司 | Cleaning device of hot water tank |
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| CN107187881A (en) * | 2017-06-30 | 2017-09-22 | 河南小大机器人股份公司 | A kind of stacking streamline |
| CN108394807A (en) * | 2018-02-09 | 2018-08-14 | 山东临工工程机械有限公司 | Loader cab portion wiring and the automatic collaborative device of main assembly line |
| CN207792531U (en) * | 2018-01-26 | 2018-08-31 | 重庆中和智能装备有限公司 | A kind of steel grating finished product palletizing system |
| CN111377362A (en) * | 2018-12-28 | 2020-07-07 | 利星行能源(昆山)有限公司 | Hoisting tool and hoisting method of gas turbine |
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2020
- 2020-07-10 CN CN202010664049.2A patent/CN111717781B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105650914A (en) * | 2016-03-29 | 2016-06-08 | 天峨县全盛蜂业科技有限公司 | Cleaning device of hot water tank |
| CN107155728A (en) * | 2017-05-25 | 2017-09-15 | 巫溪县常青园林有限责任公司 | The Mobile sprinkling irrigation equipment that can be used in greenhouse |
| CN107187881A (en) * | 2017-06-30 | 2017-09-22 | 河南小大机器人股份公司 | A kind of stacking streamline |
| CN207792531U (en) * | 2018-01-26 | 2018-08-31 | 重庆中和智能装备有限公司 | A kind of steel grating finished product palletizing system |
| CN108394807A (en) * | 2018-02-09 | 2018-08-14 | 山东临工工程机械有限公司 | Loader cab portion wiring and the automatic collaborative device of main assembly line |
| CN111377362A (en) * | 2018-12-28 | 2020-07-07 | 利星行能源(昆山)有限公司 | Hoisting tool and hoisting method of gas turbine |
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| CN111717781B (en) | 2023-02-28 |
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