LU502618B1 - Rotating grab cart - Google Patents
Rotating grab cart Download PDFInfo
- Publication number
- LU502618B1 LU502618B1 LU502618A LU502618A LU502618B1 LU 502618 B1 LU502618 B1 LU 502618B1 LU 502618 A LU502618 A LU 502618A LU 502618 A LU502618 A LU 502618A LU 502618 B1 LU502618 B1 LU 502618B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- grab
- hoisting
- chassis
- rotating
- pit
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/14—Grabs opened or closed by driving motors thereon
- B66C3/18—Grabs opened or closed by driving motors thereon by electric motors
-
- 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
- B66C11/12—Trolleys or crabs, e.g. operating above runways having hoisting gear adapted to special load-engaging elements and not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C17/00—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports
- B66C17/06—Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports specially adapted for particular purposes, e.g. in foundries, forges; combined with auxiliary apparatus serving particular purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
- B66C3/02—Bucket grabs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Handcart (AREA)
Abstract
The invention provides a rotating grab cart. The rotating grab cart includes a chassis, a running mechanism, a hoisting mechanism, a gyration mechanism, and a grabbing mechanism. The running mechanism is used for providing a power source for movement of the chassis. The hoisting mechanism includes a hoisting member and a driving structure. The driving structure is used for driving the hoisting member to ascend or descend vertically along the chassis. The gyration mechanism is driven by the hoisting member to ascend or descend vertically along the chassis. The grabbing mechanism includes a grab which is driven by the gyration mechanism to rotate. The grab includes a left grab and a right grab capable of being opened and closed. The grab has a long cylindrical structure when the left grab and the right grab are closed. When an axial size of the long cylindrical structure is less than a transverse size of the long cylindrical structure, the gyration mechanism drives the grab to rotate by 90 degrees, to make a transverse end of the grab face the edge of the pit, to reduce a distance between the grab and the edge of the pit. The present invention allows the grab to transfer a material at a corner position of a pit, has wide applicability, and improves the production efficiency.
Description
ROTATING GRAB CART 0502618
The present invention relates to the field of transfer equipment technologies, and in particular, to a rotating grab cart.
In a process of transferring a material in a pit by existing transfer equipment, due to limit positions of running of the transfer equipment, a material located at a corner position of the pit cannot be transferred, and the material is subject to certain impact after a long period of time.
For example, a food grade material that is located at a corner and cannot be transferred may deteriorate over time. If the deteriorated material is mixed with a fresh material in a transfer process, the freshness of food 1s affected, causing harm to humans.
For this, a technical problem to be resolved by the present invention 1s to overcome the problem in the prior art that transfer equipment cannot transfer a material located at a corner position of a pit.
To resolve the foregoing technical problem, the present invention relates to a rotating grab cart, including a chassis, a running mechanism, a hoisting mechanism, a gyration mechanism, and a grabbing mechanism. The running mechanism is used for providing a power source for movement of the chassis. The hoisting mechanism includes a hoisting member and a driving structure. The driving structure 1s used for driving the hoisting member to ascend or descend vertically along the chassis. The gyration mechanism 1s driven by the hoisting member to ascend or descend vertically along the chassis. The grabbing mechanism includes a grab which is driven by the gyration mechanism to rotate. The grab includes a left grab and a right grab capable of being opened and closed. The grab has a long cylindrical structure when the left grab and the right grab are closed. An axial size of the long cylindrical structure is less than a transverse size of the long cylindrical structure. When the chassis runs to a point at which an axial end of the grab 1s about to touch an edge of a pit, the gyration mechanism drives the grab to rotate by 90 degrees, to reduce a distance between the grab and the edge of the pit.
In an embodiment of the present invention, the running mechanism includes a guide wheel and a running motor that are disposed on the chassis, and the running motor drives the guide wheel to implement the movement of the chassis. LUS02618
In an embodiment of the present invention, the hoisting mechanism includes a reel, a reducer, a hoisting motor, and a hauling cable, the reel is fixedly nested on an output shaft of the reducer, the hauling cable is disposed on the reel, a rotating shaft of the hoisting motor is fixedly connected to a transmission shaft by a coupling, an end of the transmission shaft away from the hoisting motor extends through the reducer, and the transmission shaft is connected to an input end of the reducer.
In an embodiment of the present invention, the hauling cable is a steel cable.
In an embodiment of the present invention, the hoisting motor is a servo motor.
In an embodiment of the present invention, the hoisting member is a long guide cylinder, a hauling member is disposed at a lateral end of the long guide cylinder, and the hauling cable is wound on the hauling member.
In an embodiment of the present invention, the gyration mechanism is a rotary reducer.
In an embodiment of the present invention, the left grab and the right grab are hinged to each other, and when the left grab and the right grab are opened or closed, movement ranges of edges of longitudinal profiles of the left grab and the right grab are within one circle.
In an embodiment of the present invention, the grabbing mechanism further includes a left telescopic member and a right telescopic member, one end of the left telescopic member and one end of the right telescopic member are mounted at the rotary reducer, the other end of the left telescopic member is connected to the left grab, the other end of the right telescopic member is connected to the right grab, and extension and retraction of the left telescopic member and the right telescopic member implement opening and closing of the left grab and the right grab.
In an embodiment of the present invention, the left telescopic member and the right telescopic member are both electric telescopic rods.
Compared with the prior art, the foregoing technical solution of the present invention has the following advantages:
For the rotating grab cart of the present invention, the gyration mechanism and the grab structure are disposed, so that the grab is allowed to transfer a material at a corner position of a pit, the applicability is wide, and the production efficiency is improved.
To make the content of the present invention clearer and more comprehensible, the present invention is further described in detail below according to specific embodiments of the present invention and the accompanying draws. Where: LUS02618
FIG. 1 is an schematic structural diagram of a rotating grab cart according to the present invention.
FIG. 2 is a schematic structural diagram of a grab according to the present invention.
FIG. 3 is a schematic structural diagram of a grab,wherein the grab is located above a pit and an axial end of the grab faces an edge of the pit.
FIG. 4 is a schematic structural diagram of a grab, wherein the grab is located above a pit and a transverse end of the grab faces an edge of the pit.
FIG. 5 is a schematic structural diagram of a grab, wherein the grab is located in a pit and an axial end of the grab faces an edge of the pit.
FIG. 6 is a schematic structural diagram of a grab, wherein the grab is located in a pit and a transverse end of the grab faces an edge of the pit.
Reference numerals: 1. chassis; 2. running mechanism; 3. hoisting mechanism; 31. steel cable; 32. hoisting member; 4. gyration mechanism; 5. grabbing mechanism; 51. left grab; 52. right grab; 53. left electric telescopic rod; 54. right electric telescopic rod; and 6. pit.
The present invention is further described below with reference to the accompanying drawings and specific embodiments, to enable a person skilled in the art to better understand and implement the present invention. However, the embodiments are not used to limit the present invention.
As shown in FIG. 1 and FIG. 2, the present invention provides a rotating grab cart, including a chassis 1, a running mechanism 2, a hoisting mechanism 3, a gyration mechanism 4, and a grabbing mechanism 5. The running mechanism 2 is used for providing a power source for movement of the chassis 1. The hoisting mechanism 3 includes a hoisting member 32 and a driving structure. The driving structure is used for driving the hoisting member 32 to ascend or descend vertically along the chassis 1. The gyration mechanism 4 is driven by the hoisting member 32 to ascend or descend vertically along the chassis 1. The grabbing mechanism 5 includes a grab which is driven by the gyration mechanism 4 to rotate. The grab includes a left grab 51 and a right grab 52 capable of being opened and closed. The grab has a long cylindrical structure when the left grab 51 and the right grab 52 are closed. When an axial size of the long cylindrical structure is less than a transverse size of the long cylindrical structure, an axial end of the grab faces an edge of a pit. When the chassis runs to a limit position, the axial end of the grab approaches the edge of the pit. The gyration mechanism drives the grab to rotate by 90 degrees, to make a transverse end of the grab face the edge of the pit 6, to reduce a distance LU502618 between the grab and the edge of the pit. When a transverse size of the long cylindrical structure is less than an axial size of the long cylindrical structure, a transverse end of the grab faces an edge of a pit. When the chassis runs to a limit position, the transverse end of the grab approaches the edge of the pit, and the gyration mechanism drives the grab to rotate by 90 degrees, to make an axial end of the grab face the edge of the pit 6, to reduce a distance between the grab and the edge of the pit.
The running mechanism 2 includes a guide wheel and a running motor that are disposed on the chassis 1. The running motor drives the guide wheel to implement the movement of the chassis 1. The hoisting mechanism 3 includes a reel, a reducer, a hoisting motor, and a steel cable 31.
The reel is fixedly nested on an output shaft of the reducer. The steel cable 31 is disposed on the reel. A rotating shaft of the hoisting motor is fixedly connected to a transmission shaft by a coupling. An end of the transmission shaft away from the hoisting motor extends through the reducer. The transmission shaft is connected to an input end of the reducer. A hauling member is disposed on a lateral end of the long guide cylinder. The steel cable 31 is wound on the hauling member. The long guide cylinder ascends or descends vertically along the chassis 1.
The gyration mechanism 4 is a rotary reducer. The rotary reducer is a full-circle rotary reduction transmission mechanism that integrates a driving power source. The rotary reducer uses a rotary support as a transmission driven part and a mechanism attachment member. A driving member, a driving source, and a casing are attached to one of an inner ring and an outer ring of the rotary support, and the other ring is used as both the transmission driven part and a connecting base for a driven operating part. In this way, the rotary support is a full-circle rotary connecting member, and the driving power source and a main transmission component are efficiently configured, to form a universal reduction transmission mechanism that integrates the rotary function, the reduction function, and the driving function, has a simple structure, and is convenient to manufacture and maintain.
The grabbing mechanism 5 includes the grab, a left electric telescopic rod 53, and a right electric telescopic rod 54. The grab and a guide cylinder are connected by the rotary reducer.
The grab includes a left grab 51 and a right grab 52 that are hinged to each other. The grab has a long cylindrical structure when the left grab 51 and the right grab 52 are closed. The axial size of the long cylindrical structure is greater than the transverse size of the long cylindrical structure, one end of the left electric telescopic rod 53 and one end of the right electric telescopic rod 54 are mounted on the rotary reducer. The other end of the left electric telescopic rod 53 is connected to the left grab 51, and the other end of the right electric telescopic rod is connected to the right grab 52. Extension and retraction of the left electric telescopic rod 53 LU502618 and the right electric telescopic rod 54 implement opening and closing of the left grab 51 and the right grab 52. When the left grab 51 and the right grab 52 are opened or closed, movement ranges of edges of longitudinal profiles of the left grab 51 and the right grab 52 are within one circle, as shown in FIG. 2.
As shown in FIG. 3 and FIG. 4, as the cart runs to the position of the pit 6, the long guide cylinder is hoisted to an upper limit position state. In this case, the grab is also hoisted to an upper limit position. When the cart reaches the position of the pit 6, the cart controls the guide cylinder to extend downward, to drive the grab to move downward into the pit 6, as shown in
FIG. 5 and FIG. 6. The cart then controls an electric push rod on the grab to make the grab open and close to implement material grabbing. After the material grabbing is completed, the cart then controls the guide cylinder to retract upward, to drive the grab to move upward to the upper limit position. Next, the cart is controlled to run to another pit, the foregoing operations are repeated, the long guide cylinder is controlled to descend to the another pit, and the grab is opened to implement unloading.
As the grab cart is used to implement the transfer of a material from the pit 6 to another pit, when the cart runs to the limit position, the distance between an axial end of the grab and the edge of the pit 6 is m at this time. A rotary reduction driver rotates the grab by 90 degrees. At this time, the distance between a transverse end of the grab and the edge of the pit 6 is n. The axial size of the grab is 2a, and the transverse size of the grab is 2b. When a<b,n=a+m-b <m. When the cart runs to the limit position, if at this time the distance between the transverse end of the grab and the edge of the pit 6 is n. The rotary reduction driver rotates the grab by 90 degrees. At this time, the distance between the axial end of the grab and the edge of the pit 6 is m. The axial size of the grab is 2a, and the transverse size of the grab is 2b. When a >b, m=b +n —a <n. A limit distance between an edge of the grab and the edge of the pit 6 is reduced.
By means of the foregoing method, the objective of reducing a grabbing limit position of the grab in the pit can be achieved.
Obviously, the foregoing embodiments are merely examples for clear description, rather than a limitation to implementations. For a person of ordinary skill in the art, other changes or variations in different forms may also be made based on the foregoing description. All implementations cannot and do not need to be exhaustively listed herein. Obvious changes or variations that are derived there from still fall within the protection scope of the invention of the present invention.
Claims (10)
1. À rotating grab cart, comprising a chassis, and comprising: a running mechanism, the running mechanism being used for providing a power source for movement of the chassis: a hoisting mechanism, the hoisting mechanism comprising a hoisting member and a driving structure, the driving structure being used for driving the hoisting member to ascend or descend vertically along the chassis; a gyration mechanism, the gyration mechanism being driven by the hoisting member to ascend or descend vertically along the chassis; and a grabbing mechanism, the grabbing mechanism comprising a grab which is driven by the gyration mechanism to rotate, the grab comprising a left grab and a right grab capable of being opened and closed, the grab having a long cylindrical structure when the left grab and the right grab are closed, wherein when an axial size of the long cylindrical structure is less than a transverse size of the long cylindrical structure, an axial end of the grab faces an edge of a pit, when the chassis runs to a limit position, the axial end of the grab approaches the edge of the pit, and the gyration mechanism drives the grab to rotate by 90 degrees, so that a transverse end of the grab faces the edge of the pit, to reduce a distance between the grab and the edge of the pit.
2. The rotating grab cart according to claim 1, wherein the running mechanism comprises a guide wheel and a running motor that are disposed on the chassis, and the running motor drives the guide wheel to implement the movement of the chassis.
3. The rotating grab cart according to claim 2, wherein the hoisting mechanism comprises a reel, a reducer, a hoisting motor, and a hauling cable, the reel is fixedly nested on an output shaft of the reducer, the hauling cable is disposed on the reel, a rotating shaft of the hoisting motor is fixedly connected to a transmission shaft by a coupling, an end of the transmission shaft away from the hoisting motor extends through the reducer, and the transmission shaft is connected to an input end of the reducer.
4. The rotating grab cart according to claim 3, wherein the hauling cable is a steel cable.
5. The rotating grab cart according to claim 4, wherein the hoisting motor is a servo motor.
6. The rotating grab cart according to claim 5, wherein the hoisting member is a long guide cylinder, a hauling member is disposed on a lateral end of the long guide cylinder, and the hauling cable is wound on the hauling member.
7. The rotating grab cart according to claim 6, wherein the gyration mechanism is a rotary LU502618 reducer.
8. The rotating grab cart according to claim 7, wherein the left grab and the right grab are hinged to each other, and when the left grab and the right grab are opened or closed, movement ranges of edges of longitudinal profiles of the left grab and the right grab are within one circle.
9. The rotating grab cart according to claim 8, wherein the grabbing mechanism further comprises a left telescopic member and a right telescopic member, one end of the left telescopic member and one end of the right telescopic member are mounted on the rotary reducer, the other end of the left telescopic member is connected to the left grab, the other end of the right telescopic member is connected to the right grab, and extension and retraction of the left telescopic member and the right telescopic member implement opening and closing of the left grab and the right grab.
10. The rotating grab cart according to claim 9, wherein the left telescopic member and the right telescopic member are both electric telescopic rods.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111065445.4A CN113860164A (en) | 2021-09-09 | 2021-09-09 | Rotary grab bucket trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| LU502618A1 LU502618A1 (en) | 2023-03-09 |
| LU502618B1 true LU502618B1 (en) | 2023-06-15 |
Family
ID=78995456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU502618A LU502618B1 (en) | 2021-09-09 | 2022-01-13 | Rotating grab cart |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN113860164A (en) |
| LU (1) | LU502618B1 (en) |
| WO (1) | WO2023035530A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860164A (en) * | 2021-09-09 | 2021-12-31 | 法兰泰克重工股份有限公司 | Rotary grab bucket trolley |
| CN114604748B (en) * | 2022-05-11 | 2022-07-29 | 法兰泰克重工股份有限公司 | Revolving transfer trolley |
Family Cites Families (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2306055A (en) * | 1940-10-24 | 1942-12-22 | Robert J Harry | Soaking pit crane |
| DE1211778B (en) * | 1960-12-14 | 1966-03-03 | Beteiligungs & Patentverw Gmbh | Pincer crane trolley with a tilting shaft |
| FR1277706A (en) * | 1961-01-14 | 1961-12-01 | Maschf Deutschland Ag | Telescopic guide frame for crane |
| US3501035A (en) * | 1968-07-22 | 1970-03-17 | Beloit Corp | Pole grappling apparatus with heel means and lateral stabilizers |
| US3631995A (en) * | 1970-03-16 | 1972-01-04 | Beloit Corp | Rotatable grapple with individually actuated outriggers |
| JPH06240702A (en) * | 1993-02-09 | 1994-08-30 | Wen Jai Rin | Rotating type large-sized grab |
| DE19506427C1 (en) * | 1995-02-24 | 1996-04-25 | Riepl Josef Gmbh | Twin=dish gripper for hydraulic lifting gear |
| CN201694755U (en) * | 2010-06-24 | 2011-01-05 | 大连华锐股份有限公司 | Bridge-type ship unloader with double-grab bucket |
| CN103072892B (en) * | 2013-01-09 | 2015-09-02 | 河南省大方重型机器有限公司 | A kind of monkey and use the hoisting crane of this dolly |
| JP5986030B2 (en) * | 2013-03-28 | 2016-09-06 | 三井造船株式会社 | Grab bucket runout control method for rope trolley crane |
| CN103274230B (en) * | 2013-07-01 | 2015-08-19 | 中国科学院自动化研究所 | A kind of automation wine unstrained spirits material goes out to store device |
| CN204474173U (en) * | 2015-02-06 | 2015-07-15 | 云南特安特起重机械有限公司 | A kind of hydraulic grab crane in bridge type |
| CN104790445A (en) * | 2015-04-27 | 2015-07-22 | 徐工集团工程机械股份有限公司道路机械分公司 | Full-rotating hydraulic grab bucket |
| CN109251838B (en) * | 2018-10-30 | 2023-10-03 | 武汉奋进智能机器有限公司 | Fermented grain in-out cellar conveying system |
| CN209890090U (en) * | 2019-05-16 | 2020-01-03 | 河南科技学院 | Hoisting device of crane |
| CN210528295U (en) * | 2019-05-31 | 2020-05-15 | 重庆第二起重机厂有限责任公司 | Multifunctional transportation device |
| CN110562729A (en) * | 2019-08-29 | 2019-12-13 | 武汉奋进智能机器有限公司 | Fermented grain discharging system and method |
| CN211871177U (en) * | 2020-01-17 | 2020-11-06 | 四川沱江起重机有限公司 | Telescopic bucket crane |
| CN111170152A (en) * | 2020-03-10 | 2020-05-19 | 江西工创科技协同创新有限公司 | Double-power eight-rope grab trolley |
| CN212334394U (en) * | 2020-07-06 | 2021-01-12 | 百特（福建）智能装备科技有限公司 | Automatic lees play income cellar for storing things device |
| CN213771091U (en) * | 2020-11-23 | 2021-07-23 | 三一海洋重工有限公司 | Crane with a movable crane |
| CN113860164A (en) * | 2021-09-09 | 2021-12-31 | 法兰泰克重工股份有限公司 | Rotary grab bucket trolley |
-
2021
- 2021-09-09 CN CN202111065445.4A patent/CN113860164A/en active Pending
-
2022
- 2022-01-13 LU LU502618A patent/LU502618B1/en active IP Right Grant
- 2022-01-13 WO PCT/CN2022/071828 patent/WO2023035530A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| LU502618A1 (en) | 2023-03-09 |
| CN113860164A (en) | 2021-12-31 |
| WO2023035530A1 (en) | 2023-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| LU502618B1 (en) | Rotating grab cart | |
| CN107377550B (en) | Automatic cleaning equipment of storage tank structure | |
| CN108568840A (en) | Material sorting elevating mechanism and material Prospect of Robot Sorting System | |
| CN105152084A (en) | Steel rope full-freedom hoisting and motor-driving tilting forklift portal system | |
| CN102795538A (en) | Novel long rod sling | |
| CN203699762U (en) | Concealed frequency conversion hoisting mechanism | |
| JP6011784B2 (en) | Grab bucket device and work carriage equipped with the same | |
| CN105692438A (en) | Mobile grab bucket | |
| CN211619781U (en) | Explosion-proof electric telescopic rotary container spreader | |
| CN211283475U (en) | Rotary telescopic rigid guide pillar | |
| CN215828264U (en) | Lifting device for installation of waste gas treatment system | |
| CN110963418B (en) | Intelligent double-beam crane | |
| CN107200278A (en) | The single arm support crane luffing horizontal displacement system of differential compensation | |
| CN102730576A (en) | Energy saving fixed type crane | |
| CN207919505U (en) | A kind of novel arc gate hoist engine | |
| CN217173096U (en) | Hoist and hoisting accessory thereof | |
| CN106429919B (en) | A kind of transmission mechanism | |
| CN217323184U (en) | Steel lifting device for building steel structure | |
| CN205702385U (en) | A kind of soup feeding machine | |
| CN203699765U (en) | Concealed winch reduction gear | |
| CN215520703U (en) | Mining electric tank curtain door | |
| CN205328488U (en) | Column type swing crane; derrick | |
| CN107098285A (en) | Lifting mechanism and crane | |
| CN203545414U (en) | Friction wheel-driven automatic cage gate | |
| CN214352450U (en) | Big power arm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Patent granted |
Effective date: 20230615 |