CN111776956A - Split type beam-moving crane - Google Patents
Split type beam-moving crane Download PDFInfo
- Publication number
- CN111776956A CN111776956A CN202010701451.3A CN202010701451A CN111776956A CN 111776956 A CN111776956 A CN 111776956A CN 202010701451 A CN202010701451 A CN 202010701451A CN 111776956 A CN111776956 A CN 111776956A
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- Prior art keywords
- fixedly connected
- plate
- supporting
- rod
- split type
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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
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
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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
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
- B66C11/18—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear comprising endless ropes or cables
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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
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
- B66C5/04—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods with runways or tracks supported for movements relative to bridge or gantry
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a split type beam moving crane, and relates to the technical field of construction equipment. The utility model provides a split type roof beam hoist that moves, including jack-up strutting arrangement, jack-up strutting arrangement is including supporting the diaphragm, the last fixed surface who supports the diaphragm is connected with supports the down tube, the inner wall fixedly connected with anchor strut that supports the down tube, the last fixed surface who supports the down tube is connected with fixed block one, both sides are provided with the mobile device around the below of support diaphragm, the mobile device includes the support column, the last fixed surface of support column is connected with the lower surface that supports the diaphragm, the lower fixed surface of support column is connected with the connecting plate, both ends fixedly connected with connects the curb plate about the lower surface of connecting plate, the left surface lower extreme fixedly connected with fixed plate of connecting the curb plate left side board, it is the integral type to have solved current hoist mostly, when hoisting not unidimensional crossbeam, the unable adjustment span of hoist.
Description
Technical Field
The invention relates to the technical field of construction equipment, in particular to a split type beam moving crane.
Background
The crane refers to a multi-action crane for vertically lifting and horizontally carrying heavy objects within a certain range. The crane is also called a crown block, a crane, and hoisting equipment has the working characteristics of intermittent movement, namely corresponding mechanisms for taking materials, transporting, unloading and the like in one working cycle work alternately, so that the crane is more and more widely developed and used in the market. Because the weight is lifted without the supporting legs and the lifted weight is frequently used for driving, the driving speed is higher than that of a crawler crane (crawler crane); the operation is stable, the lifting capacity is large, the lifting can be carried out within a specific range, but the road is required to be smooth and firm, the tire air pressure meets the requirement, and the lifting distance from the ground is not more than 50 CM; long distance walking with load is prohibited. In order to ensure the operation safety, the lifting operation without landing legs is basically forbidden in China at present. The crane is matched with steel wire ropes of various types including phosphated coating steel wire ropes, galvanized steel wire ropes and smooth steel wire ropes, and the bridge crane is hoisting equipment which is transversely arranged above workshops, warehouses and stock yards for hoisting materials. Since its two ends are seated on a tall concrete column or a metal bracket, it is shaped like a bridge. The bridge frame of the bridge crane runs longitudinally along the rails laid on the elevated frames at two sides, so that the space below the bridge frame can be fully utilized to hoist materials without being hindered by ground equipment. The lifting machine has the widest application range and the largest quantity.
However, most of the existing cranes are integrated, and when the cranes hoist the cross beams with different sizes, the cranes cannot adjust the span, so that the cranes are limited in use and are not flexible enough.
Disclosure of Invention
The invention aims to provide a split type beam-moving crane to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a split type beam moving crane comprises a lifting support device, wherein the lifting support device comprises a support transverse plate, the upper surface of the support transverse plate is fixedly connected with a support inclined rod, the inner wall of the support inclined rod is fixedly connected with a reinforcing rod, and the upper surface of the support inclined rod is fixedly connected with a first fixing block;
the front side and the rear side below the supporting transverse plate are provided with moving devices;
a top support device is arranged in the middle of the lower part of the support transverse plate;
a span adjusting device and a winch lifting device are arranged above the supporting inclined rod;
and an auxiliary moving device is arranged on the right side of the top bracing device.
Preferably, the moving device comprises a support column, the upper surface of the support column is fixedly connected with the lower surface of the support transverse plate, the lower surface of the support column is fixedly connected with a connecting plate, the left end and the right end of the lower surface of the connecting plate are fixedly connected with connecting side plates, the lower end of the left side surface of the connecting side plate is fixedly connected with a fixed plate, the upper surface of the fixed plate is fixedly connected with a first motor, the right side surface of a rotating shaft of the first motor is fixedly connected with a connecting shaft, the circumferential side surface of the connecting shaft penetrates through and is rotatably connected with the left side surface and the right side surface of the connecting side plate, the circumferential side surface of the connecting shaft penetrates through and is fixedly connected with a first roller, the first roller is positioned between the two connecting side plates, the jacking device comprises a first hydraulic machine, the lower surface of the first hydraulic rod is fixedly connected with a bottom plate, and the lower surface of the bottom plate is fixedly connected with a soft cushion plate.
Preferably, the span adjusting device comprises a cross beam, a first slide rod is fixedly connected to the inner wall of the cross beam, a second slide rod is slidably connected to the right end of the inner wall of the first slide rod, a second motor is fixedly connected to the left side face of the first slide rod, the right side face of the second motor is fixedly connected to the left side face of the first fixed block, a second fixed block is fixedly connected to the upper surface of the left part of the cross beam, an auxiliary support rod is fixedly connected to the right side face of the second fixed block, a third fixed block is slidably connected to the circumferential side face of the auxiliary support rod in a penetrating manner, the lower surface of the third fixed block is fixedly connected to the upper surface of the right cross beam, the winch pulling-up device comprises a bottom plate, the lower surface of the bottom plate is fixedly connected to the upper surface of the first fixed block, a connecting column is fixedly, the third motor's pivot leading flank rotates through the bearing and is connected with the support curb plate, the lower fixed surface who supports the curb plate connects the upper surface of fixed block one, the circumference surface of roller bearing rotates and is connected with wire rope, wire rope's right-hand member surface rotates and is connected with the fixed pulley, fixedly connected with pulley shaft runs through at the side center department around the fixed pulley, pulley shaft's leading flank rotates through the bearing and is connected with the gusset plate, pulley shaft's trailing flank rotates through the bearing and connects the leading flank of crossbeam, the leading flank of the trailing flank fixed connection crossbeam of gusset plate, wire rope's lower fixed surface is connected with the connecting block, the lower fixed surface of connecting block is connected with the barb.
Preferably, the auxiliary moving device comprises a second hydraulic machine, the upper surface of the second hydraulic machine is fixedly connected with the center of the lower surface of the right supporting transverse plate, the lower surface of the second hydraulic machine is fixedly connected with a second hydraulic rod, the lower surface of the second hydraulic rod is fixedly connected with a fixed shell, the inner side surface of the fixed shell is rotatably connected with a second roller through a rotating shaft and a bearing, and the cross section of the connecting part of the supporting inclined rod and the reinforcing rod is in an A shape.
Compared with the prior art, the invention has the beneficial effects that:
(1) this split type roof beam hoist that moves, through opening motor one, the rotatory connecting axle and the gyro wheel of driving of the pivot of motor one make whole device move operating position, and motor one is all disposed alone to every gyro wheel, and gyro wheel one itself can't take place to rotate, strengthens the bearing capacity of gyro wheel one, changes the rotational speed of gyro wheel one through the rotational speed of control motor pivot to change the advancing direction of whole device, make whole device remove more nimble.
(2) This split type roof beam hoist that moves, through opening hydraulic press one and hydraulic press two, make hydraulic press one and hydraulic press two push down extension, make the ground contact ground of soft backing plate and gyro wheel two and prop whole device, make gyro wheel one break away from ground, when the ground has protruding unevenness, the soft backing plate can warp and keep laminating with ground, it is more steady to make whole device stew, it is fixed motionless to prop device department, at this moment open motor two and make slide bar one and slide bar two slip extension, promote the right side structure to the right side, the span of whole device of extension, in order to adapt to bigger size crossbeam.
(3) This split type roof beam hoist that moves through setting up auxiliary stay pole, slides along three inner walls of fixed block and plays supplementary bearing effect to the crossbeam, makes the bearing more stable.
(4) This split type roof beam hoist that moves through setting up the gusset plate, the gusset plate cover plays the auxiliary stay effect in the fixed pulley outside to the fixed pulley, improves the bearing capacity of fixed pulley, prevents the trouble that drops.
(5) This split type roof beam hoist that moves sets up to A style of calligraphy through connecting the cross section with supporting down tube and anchor strut, utilizes the triangle-shaped principle to improve the support steadiness of whole device.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at B according to the present invention;
FIG. 4 is an enlarged view of a portion of FIG. 1 at C according to the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 1 at D according to the present invention.
In the figure: 1 hoisting support device, 101 support transverse plate, 102 support inclined rod, 103 reinforcing rod, 104 fixed block I, 2 moving device, 201 support column, 202 connecting plate, 203 connecting side plate, 204 fixed plate, 205 motor I, 206 connecting shaft, 207 roller I, 3 top support device, 301 hydraulic press I, 302 hydraulic rod I, 303 bottom plate, 304 soft cushion plate, 4 span adjusting device, 401 cross beam, 402 slide rod I, 403 slide rod II, 404 motor II, 405 fixed block II, 406 auxiliary support rod, 407 fixed block III, 5 hoisting and lifting device, 501 bottom plate, 502 connecting column, 503 motor III, 504 roller, 505 support side plate, 506 steel wire rope, 507 fixed pulley, 508 pulley shaft, 509 reinforcing plate, 510 connecting block, 511 barb, 6 auxiliary moving device, 601 II, 602 hydraulic rod II, 603 fixed shell and roller 604 II.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Referring to fig. 1-5, the present invention provides a technical solution: a split type beam moving crane comprises a lifting support device 1, wherein the lifting support device 1 comprises a support transverse plate 101, the upper surface of the support transverse plate 101 is fixedly connected with a support inclined rod 102, the inner wall of the support inclined rod 102 is fixedly connected with a reinforcing rod 103, and the upper surface of the support inclined rod 102 is fixedly connected with a first fixing block 104;
the front side and the rear side below the supporting transverse plate 101 are provided with the moving devices 2;
the middle of the lower part of the supporting transverse plate 101 is provided with a top supporting device 3;
a span adjusting device 4 and a hoisting and pulling device 5 are arranged above the supporting diagonal rod 102;
the right side of the shoring device 3 is provided with an auxiliary moving device 6.
The moving device 2 comprises a supporting column 201, the upper surface of the supporting column 201 is fixedly connected with the lower surface of the supporting transverse plate 101, the lower surface of the supporting column 201 is fixedly connected with a connecting plate 202, the left and right ends of the lower surface of the connecting plate 202 are fixedly connected with connecting side plates 203, the lower end of the left side surface of the connecting side plate 203 is fixedly connected with a fixing plate 204, the upper surface of the fixing plate 204 is fixedly connected with a motor I205, the right side surface of a rotating shaft of the motor I205 is fixedly connected with a connecting shaft 206, the circumferential side surface of the connecting shaft 206 penetrates through and is rotatably connected with the left and right side surfaces of the connecting side plates 203, the circumferential side surface of the connecting shaft 206 penetrates and is fixedly connected with a roller I207, the roller I207 is positioned between the two connecting side plates 203, the jacking device 3 comprises a, the lower surface of the hydraulic rod I302 is fixedly connected with a bottom plate 303, the lower surface of the bottom plate 303 is fixedly connected with a soft cushion plate 304, when the ground surface is raised and uneven, the soft cushion plate 304 can be deformed and kept to be attached to the ground surface, so that the whole device can be stably placed, the span adjusting device 4 comprises a cross beam 401, the inner wall of the cross beam 401 is fixedly connected with a first slide rod 402, the right end of the inner wall of the first slide rod 402 is slidably connected with a second slide rod 403, the left side surface of the first slide rod 402 is fixedly connected with a second motor 404, the right side surface of the second motor 404 is fixedly connected with the left side surface of a first fixed block 104, the upper surface of the left part of the cross beam 401 is fixedly connected with a second fixed block 405, the right side surface of the second fixed block 405 is fixedly connected with an auxiliary supporting rod 406, the circumferential side surface of the, the lower surface of the bottom plate 501 is fixedly connected with the upper surface of a first fixed block 104, the upper surface of the bottom plate 501 is fixedly connected with a connecting column 502, the upper surface of the connecting column 502 is fixedly connected with a third motor 503, a rotating shaft of the third motor 503 is fixedly connected with a roller 504 in a penetrating way, the front side surface of the rotating shaft of the third motor 503 is rotatably connected with a supporting side plate 505 through a bearing, the lower surface of the supporting side plate 505 is fixedly connected with the upper surface of the first fixed block 104, the circumferential surface of the roller 504 is rotatably connected with a steel wire rope 506, the right end surface of the steel wire rope 506 is rotatably connected with a fixed pulley 507, the center of the front side surface and the rear side surface of the fixed pulley 507 is fixedly connected with a pulley shaft 508 in a penetrating way, the front side surface of the pulley shaft 508 is rotatably connected with a reinforcing plate 509 through a bearing, the rear side surface of the reinforcing plate 509 is fixedly connected with the front side surface of the cross beam 401, the lower surface of the steel wire rope 506 is fixedly connected with a connecting block 510, the lower surface of the connecting block 510 is fixedly connected with a barb 511, the auxiliary moving device 6 comprises a second hydraulic machine 601, the upper surface of the second hydraulic machine 601 is fixedly connected with the center of the lower surface of the right supporting transverse plate 101, the lower surface of the second hydraulic machine 601 is fixedly connected with a second hydraulic rod 602, the lower surface of the second hydraulic rod 602 is fixedly connected with a fixed shell 603, the inner side surface of the fixed shell 603 is rotatably connected with a second roller 604 through a rotating shaft and a bearing, the supporting inclined rod 102 and the reinforcing rod 103 are connected, the cross section of the supporting inclined rod 102 and the reinforcing rod, when lifting the cross beams with different sizes, the crane cannot adjust the span, and has the problems of large use limitation and insufficient flexibility.
The working principle is as follows: the first motor 205 is started, the rotating shaft of the first motor 205 rotates to drive the connecting shaft 206 and the first roller 207, the whole device moves to a working position, each first roller 207 is independently provided with one first motor 205, the first roller 207 cannot rotate, the bearing capacity of the first roller 207 is enhanced, the rotating speed of the first roller 207 is changed by controlling the rotating speed of the rotating shaft of the first motor 205, the advancing direction of the whole device is changed, the whole device moves more flexibly, after the first roller 207 moves to a proper position, the first hydraulic machine 301 and the second hydraulic machine 601 are started, the first hydraulic rod 302 and the second hydraulic rod 602 are pushed down and lengthened, the soft cushion plate 304 and the ground of the second roller 604 are in contact with the ground and support the whole device, the first roller 207 is separated from the ground, when the ground is provided with bumps and uneven, the soft cushion plate 304 can deform to be kept attached to the ground, the whole device stands more stably, and the position of the top, at this time, the second motor 404 is started to enable the first sliding rod 402 and the second sliding rod 403 to slide and lengthen, the right structure is pushed to the right, the span of the whole device is lengthened to adapt to a beam with a larger size, the auxiliary supporting rod 406 slides along the inner wall of the third fixed block 407 to play an auxiliary bearing role, after the span is adjusted, the first hydraulic rod 302 and the second hydraulic rod 602 are shortened, the lower surface of the first roller 207 is contacted with the ground again to support the whole device, the problems that most of existing cranes are integrated, the crane cannot adjust the span when lifting beams with different sizes, the use limitation is large, and the crane is not flexible enough are solved, the third motor 503 drives the roller 504 to rotate, the roller 504 rotates to lower the steel wire rope 506 to move downwards, the beams are fixed on the barb 511 through the cable and the like, then the third motor 503 is controlled to rotate the roller 504 to wind the steel wire rope 506, and the fixed, the reinforcing plate 509 covers the outer side of the fixed pulley 507 to play an auxiliary supporting role on the fixed pulley 507, the bearing capacity of the fixed pulley 507 is improved, the falling-off fault is prevented, finally, the cross beam is placed on a building body to be subsequently installed and fixed, the supporting inclined rod 102 and the reinforcing rod 103 are connected, the cross section of the supporting inclined rod 102 and the cross section of the reinforcing rod 103 are in an A shape, and the supporting stability of the whole device is improved by utilizing a triangular principle.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a split type roof beam hoist that moves, includes jack-up strutting arrangement (1), its characterized in that: the hoisting and supporting device (1) comprises a supporting transverse plate (101), a supporting inclined rod (102) is fixedly connected to the upper surface of the supporting transverse plate (101), a reinforcing rod (103) is fixedly connected to the inner wall of the supporting inclined rod (102), and a first fixing block (104) is fixedly connected to the upper surface of the supporting inclined rod (102);
the front side and the rear side below the supporting transverse plate (101) are provided with moving devices (2);
a top support device (3) is arranged in the middle of the lower part of the support transverse plate (101);
a span adjusting device (4) and a winch lifting device (5) are arranged above the supporting diagonal rod (102);
and an auxiliary moving device (6) is arranged on the right side of the top bracing device (3).
2. The split type beam-moving crane according to claim 1, wherein: the moving device (2) comprises a supporting column (201), the upper surface of the supporting column (201) is fixedly connected with the lower surface of the supporting transverse plate (101), the lower surface of the supporting column (201) is fixedly connected with a connecting plate (202), the left end and the right end of the lower surface of the connecting plate (202) are fixedly connected with connecting side plates (203), the lower end of the left side surface of the left side plate of the connecting side plate (203) is fixedly connected with a fixing plate (204), the upper surface of the fixed plate (204) is fixedly connected with a first motor (205), the right side surface of a rotating shaft of the first motor (205) is fixedly connected with a connecting shaft (206), the circumferential side surface of the connecting shaft (206) penetrates through the left side surface and the right side surface of the connecting side plate (203) in a rotating connection way, the circumferential side face of the connecting shaft (206) is fixedly connected with a first roller (207) in a penetrating mode, and the first roller (207) is located between the two connecting side plates (203).
3. The split type beam-moving crane according to claim 1, wherein: the top supporting device (3) comprises a first hydraulic machine (301), the upper surface of the first hydraulic machine (301) is fixedly connected with the center of the lower surface of the supporting transverse plate (101), the lower surface of the first hydraulic machine (301) is fixedly connected with a first hydraulic rod (302), the lower surface of the first hydraulic rod (302) is fixedly connected with a bottom plate (303), and the lower surface of the bottom plate (303) is fixedly connected with a soft cushion plate (304).
4. The split type beam-moving crane according to claim 1, wherein: span adjusting device (4) include crossbeam (401), the inner wall fixedly connected with slide bar (402) of crossbeam (401), the inner wall right-hand member sliding connection of slide bar (402) has slide bar two (403), the left surface fixedly connected with motor two (404) of slide bar one (402), the left surface of the right flank fixed connection fixed block one (104) of motor two (404), the upper surface fixedly connected with fixed block two (405) of the left side part of crossbeam (401), the right surface fixedly connected with auxiliary stay pole (406) of fixed block two (405), sliding connection is run through to the circumference side of auxiliary stay pole (406) has fixed block three (407), the upper surface of the lower fixed connection right side crossbeam (401) of fixed block three (407).
5. The split type beam-moving crane according to claim 1, wherein: the hoisting and lifting device (5) comprises a bottom plate (501), the lower surface of the bottom plate (501) is fixedly connected with the upper surface of a first fixed block (104), the upper surface of the bottom plate (501) is fixedly connected with a connecting column (502), the upper surface of the connecting column (502) is fixedly connected with a third motor (503), a rotating shaft of the third motor (503) is fixedly connected with a rolling shaft (504) in a penetrating way, the front side surface of the rotating shaft of the third motor (503) is rotatably connected with a supporting side plate (505) through a bearing, the lower surface of the supporting side plate (505) is fixedly connected with the upper surface of the first fixed block (104), the circumferential surface of the rolling shaft (504) is rotatably connected with a steel wire rope (506), the surface of the right end of the steel wire rope (506) is rotatably connected with a fixed pulley (507), the centers of the front side surface and the rear side surface of the fixed pulley (507) are fixedly connected with a, the rear side of the pulley shaft (508) is rotatably connected with the front side of the cross beam (401) through a bearing, the rear side of the reinforcing plate (509) is fixedly connected with the front side of the cross beam (401), the lower surface of the steel wire rope (506) is fixedly connected with a connecting block (510), and the lower surface of the connecting block (510) is fixedly connected with a barb (511).
6. The split type beam-moving crane according to claim 1, wherein: the auxiliary moving device (6) comprises a second hydraulic machine (601), the upper surface of the second hydraulic machine (601) is fixedly connected with the center of the lower surface of the right supporting transverse plate (101), the lower surface of the second hydraulic machine (601) is fixedly connected with a second hydraulic rod (602), the lower surface of the second hydraulic rod (602) is fixedly connected with a fixed shell (603), and the inner side surface of the fixed shell (603) is rotatably connected with a second roller (604) through a rotating shaft and a bearing.
7. The split type beam-moving crane according to claim 1, wherein: the cross section of the connection of the supporting diagonal rod (102) and the reinforcing rod (103) is in an A shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010701451.3A CN111776956A (en) | 2020-07-20 | 2020-07-20 | Split type beam-moving crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010701451.3A CN111776956A (en) | 2020-07-20 | 2020-07-20 | Split type beam-moving crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111776956A true CN111776956A (en) | 2020-10-16 |
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ID=72763261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010701451.3A Withdrawn CN111776956A (en) | 2020-07-20 | 2020-07-20 | Split type beam-moving crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111776956A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235558A (en) * | 2021-05-17 | 2021-08-10 | 潍坊峡山水务有限公司 | Angle-adjustable dam tamping device for hydraulic engineering and using method thereof |
-
2020
- 2020-07-20 CN CN202010701451.3A patent/CN111776956A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235558A (en) * | 2021-05-17 | 2021-08-10 | 潍坊峡山水务有限公司 | Angle-adjustable dam tamping device for hydraulic engineering and using method thereof |
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Application publication date: 20201016 |