CN115611152A - Powdery material sucking crown block - Google Patents
Powdery material sucking crown block Download PDFInfo
- Publication number
- CN115611152A CN115611152A CN202211598342.9A CN202211598342A CN115611152A CN 115611152 A CN115611152 A CN 115611152A CN 202211598342 A CN202211598342 A CN 202211598342A CN 115611152 A CN115611152 A CN 115611152A
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- Prior art keywords
- block
- wall
- wheel
- material sucking
- slide rail
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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
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/16—Travelling gear incorporated in or fitted to trolleys or cranes with means for maintaining alignment between wheels and track
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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
- B66C13/00—Other constructional features or details
- B66C13/16—Applications of indicating, registering, or weighing devices
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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
- 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
- B66C17/26—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 combined with auxiliary apparatus, e.g. log saws, pushers for unloading vehicles, means for shunting railway vehicles
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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
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/08—Runners; Runner bearings
Abstract
The invention relates to the technical field of material sucking crown blocks, in particular to a powdery material sucking crown block, which comprises a bridge frame, wherein a slide rail is arranged on the top of the bridge frame, a crown block is arranged on the slide rail, and a vacuum material sucking machine is arranged on the crown block; a travelling wheel is arranged at the joint of the overhead travelling crane and the bridge, and two ends of the travelling wheel are rotatably connected with a partition plate; the outer wall of the travelling wheel is connected with a conical block in a sliding way; the outer wall of the travelling wheel is provided with a chute, the inside of the travelling wheel is provided with a movable block, and the movable block passes through the chute and is fixedly connected with the inner wall of the conical block; the inside of the travelling wheel is fixedly connected with a fixed block, and both ends of the fixed block are fixedly connected with elastic pieces; the two ends of the fixed block are rotatably connected with rotating rods, and the rotating rods are positioned at the inner ring part of the elastic part; the technical problems that the crown block is scratched and rubbed with two sides of the slide rail in the operation process to generate abnormal sound, and derailment can be generated if the offset angle is too large are solved.
Description
Technical Field
The invention relates to the technical field of material sucking crown blocks, in particular to a powdery material sucking crown block.
Background
The material sucking crown block is specially used for roasting filling materials in an anode roasting furnace, a cathode roasting furnace or a graphite electrode roasting furnace, for example, the material sucking crown block cannot be separated from the work of crust breaking, anode replacement, slag fishing, aluminum discharging, partial mechanical allocation and the like in the operation of an aluminum electrolytic cell, the work efficiency of aluminum electrolysis work is greatly improved by the material sucking crown block through high automatic configuration and ultra-strong environmental adaptability, the labor intensity of operators is reduced, the operation cost is reduced, and the aluminum production capacity of an aluminum plant is improved.
The rail gnawing phenomenon of the material sucking crown block often occurs in daily operation, and the rail gnawing phenomenon of the material sucking crown block mainly has the following expression forms: the side surface of the track has obvious bright traces, the inner side of the wheel rim has bright traces, the wheel edge and the track gap are obviously changed when the crown block normally runs, the inclined wheels of the vehicle body deviate from the normal track when the multifunctional crown block runs, the cart has obvious rail gnawing sound when the crane normally runs, and the like; the main reason is that in the long-time use process, the bridge frame of the material suction crown block is settled in different degrees, so that the slide rail on the bridge frame is irregularly deviated, the crown block is cut and rubbed with two sides of the slide rail in the operation process, abnormal sound is generated, and meanwhile, the derailment danger is generated if the deviation angle is too large.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a powdery material sucking crown block, which solves the technical problems that after long-time use, a bridge frame can be settled to different degrees, so that a slide rail on the bridge frame is irregularly deviated, the crown block is cut and rubbed with two sides of the slide rail in the operation process to generate abnormal sound, and derailment can be generated if the deviation angle is too large:
a powdery material suction overhead crane comprises a bridge frame, wherein a slide rail is arranged on the top of the bridge frame, an overhead crane is arranged on the slide rail, a vacuum suction machine is arranged on the overhead crane, and the vacuum suction machine sucks powdery materials into a storage bin of the vacuum suction machine by utilizing negative pressure;
the travelling wheels are arranged at the joint of the overhead travelling crane and the bridge, the two ends of the travelling wheels are rotatably connected with partition plates, the tops of the partition plates are fixedly connected with the overhead travelling crane, and the travelling wheels are driven by an external driving device;
the outer wall of the travelling wheel is connected with a conical block in a sliding manner, and the conical block moves along the axial direction of the travelling wheel; the outer wall of the travelling wheel is provided with a chute, the inside of the travelling wheel is provided with a movable block, and the movable block passes through the chute and is fixedly connected with the inner wall of the conical block;
the inner part of the travelling wheel is fixedly connected with a fixed block, both ends of the fixed block are fixedly connected with elastic pieces, and the other end of each elastic piece is fixedly connected with one end of the movable block close to the fixed block; the elastic piece is a spring;
the both ends of fixed block all rotate and are connected with the bull stick, and the bull stick is located the inner circle part of elastic component, and the bull stick rotates with the movable block to be connected, and the axial displacement of movable block along the bull stick.
Preferably, one end of the rotating rod, which is far away from the fixed block, extends into the partition plate, and one end of the rotating rod, which is far away from the fixed block, is fixedly provided with the cam;
the mounting groove has been seted up to the inside of baffle, and the inside of mounting groove is provided with the support frame, the top of support frame and the outer wall contact of cam, and the baffle is stretched out to the bottom of support frame, and the bottom of support frame is rotated and is connected with the supporting wheel.
Preferably, the outer wall of the conical block is rotatably connected with balls which are uniformly distributed, and the balls are circumferentially distributed along the bevel edge of the conical block.
Preferably, the top of support frame is seted up flutedly, and the recess is the arc, and the tank bottom of recess is laminated with the outer wall of cam mutually, and the cam rotates the vertical direction reciprocating motion of drive support frame along the mounting groove.
Preferably, the included angle formed by the ball close to the outer wall of the walking wheel on the conical block and the outer wall of the walking wheel is set as a first included angle, chamfers are arranged on two sides of the joint of the sliding rail and the walking wheel, and the first included angle is larger than the chamfers.
Preferably, the outer walls of the conical block and the ball are coated with PTFE.
Preferably, the inside fixedly connected with pressure-sensitive device of fixed block, pressure-sensitive device and elastic component fixed connection.
The invention has the following beneficial effects:
1. according to the powdery material sucking crown block, after the inner diameter of the elastic piece is contracted, the inner ring of the elastic piece is attached to the rotating rod, the rotating rod has a certain limiting effect on the elastic piece, and the elastic piece is prevented from being stretched all the time under the pulling force of the conical block; because the action of force is mutual, and the bull stick has the restriction effect to the elastic component, when the slide rail applys pressure to the tapered block, the tapered block applys repulsion to the slide rail under the effect of elastic component, promotes the slide rail to the opposite direction of skew, reduces the phenomenon that the overhead traveling crane appears derailing when moving on the slide rail.
2. According to the powdery material sucking overhead travelling crane, when the cam rotates, the outer wall of the cam extrudes the supporting frame, so that the supporting frame moves downwards along the vertical direction of the mounting groove, the supporting wheel on the supporting frame is in contact with the lower part of the sliding rail, the supporting frame lifts the overhead travelling crane upwards in the moving process, two ends of the overhead travelling crane are in a relatively horizontal state, the situation that stress imbalance occurs at the connecting part of the overhead travelling crane and the sliding rail after a bridge frame is settled is reduced, and the phenomenon that abnormal sound occurs between the overhead travelling crane and the sliding rail is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the main structure of the present invention;
FIG. 2 is a cross-sectional view of the connection between the crown block and the slide rail;
FIG. 3 is a cross-sectional view of the road wheel;
FIG. 4 is an enlarged view taken at A in FIG. 3;
FIG. 5 is a schematic structural view of the supporting frame;
FIG. 6 is a front view of the connection between the crown block and the slide rail;
fig. 7 is an enlarged view at B in fig. 6.
In the figure: 1. a bridge frame; 11. a slide rail; 12. a crown block; 13. a vacuum suction machine; 2. a traveling wheel; 21. a partition plate; 22. a conical block; 23. a chute; 24. a movable block; 25. a ball bearing; 3. a fixed block; 31. an elastic member; 32. a rotating rod; 33. a cam; 4. mounting grooves; 41. a support frame; 42. a support wheel; 43. a groove; 5. the included angle is I; 6. and (7) chamfering.
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.
The first embodiment is as follows:
as shown in figures 1 to 7 of the drawings,
a powdery material suction overhead traveling crane comprises a bridge frame 1, wherein a slide rail 11 is arranged on the top of the bridge frame 1, an overhead traveling crane 12 is arranged on the slide rail 11, a vacuum suction machine 13 is arranged on the overhead traveling crane 12, and the vacuum suction machine 13 sucks powdery materials into a storage bin of the vacuum suction machine 13 by using negative pressure;
a walking wheel 2 is arranged at the joint of the overhead travelling crane 12 and the bridge 1, two ends of the walking wheel 2 are rotatably connected with a partition plate 21, the top of the partition plate 21 is fixedly connected with the overhead travelling crane 12, and the walking wheel 2 is driven by an external driving device;
the outer wall of the travelling wheel 2 is connected with a conical block 22 in a sliding way, and the conical block 22 moves along the axial direction of the travelling wheel 2; a sliding groove 23 is formed in the outer wall of the traveling wheel 2, a movable block 24 is arranged inside the traveling wheel 2, and the movable block 24 penetrates through the sliding groove 23 and is fixedly connected with the inner wall of the conical block 22;
the inside of the travelling wheel 2 is fixedly connected with a fixed block 3, both ends of the fixed block 3 are fixedly connected with elastic pieces 31, and the other ends of the elastic pieces 31 are fixedly connected with one ends of the movable blocks 24 close to the fixed block 3; the elastic member 31 is a spring;
two ends of the fixed block 3 are rotatably connected with rotating rods 32, the rotating rods 32 are positioned at the inner ring part of the elastic part 31, the rotating rods 32 are rotatably connected with the movable block 24, and the movable block 24 moves along the axial direction of the rotating rods 32.
One end of the rotating rod 32 far away from the fixed block 3 extends into the partition plate 21, and one end of the rotating rod 32 far away from the fixed block 3 is fixedly provided with a cam 33;
mounting groove 4 has been seted up to the inside of baffle 21, and the inside of mounting groove 4 is provided with support frame 41, the top of support frame 41 and the outer wall contact of cam 33, and baffle 21 is stretched out to the bottom of support frame 41, and the bottom of support frame 41 is rotated and is connected with supporting wheel 42.
Wherein:
A. the outer wall of the conical block 22 is rotatably connected with evenly distributed balls 25, and the balls 25 are circumferentially distributed along the bevel edge of the conical block 22.
B. The top of support frame 41 is seted up flutedly 43, and flutedly 43 are the arc, and the tank bottom of flutedly 43 laminates with the outer wall of cam 33 mutually, and cam 33 rotates drive support frame 41 along the vertical direction reciprocating motion of mounting groove 4.
C. The included angle that ball 25 that is close to the walking wheel 2 outer wall on the toper piece 22 and walking wheel 2 outer wall formed is established to contained angle one 5, and the both sides of slide rail 11 and the laminating department of walking wheel 2 are equipped with chamfer 6, and the angle of contained angle one 5 is greater than the angle of chamfer 6.
D. The outer walls of the tapered block 22 and the balls 25 are coated with PTFE to reduce friction between the balls 25 and the slide rail 11.
E. The inside fixedly connected with pressure-sensitive device of fixed block 3, pressure-sensitive device and elastic component 31 fixed connection.
When the material sucking trolley normally works, an external driving device is started, the external driving device can adopt a driving motor, the external driving device drives travelling wheels 2 to rotate, and further drives an overhead traveling crane 12 to reciprocate along the axial direction of a sliding rail 11, meanwhile, the vacuum suction device is connected with the overhead traveling crane 12 in a sliding manner, meanwhile, the vacuum suction device is also driven by the external driving device, the external driving device drives the vacuum suction device to reciprocate along the transverse direction of the overhead traveling crane 12, so that the vacuum suction device can reciprocate in a rectangular area, the vacuum suction device is started when the vacuum suction device moves to an area needing material sucking operation, a material sucking pipe on the vacuum suction device sucks materials into a material storage cavity of the vacuum suction device, and then the materials in the material storage cavity are discharged to a preset position through the position of the movable overhead traveling crane 12, so that the work of the material sucking overhead traveling crane is completed;
after long-time use, the bridge frame 1 will have different degrees of settlement, so that the slide rail 11 on the bridge frame 1 has irregular offset, and the overhead traveling crane 12 is scraped and rubbed with two sides of the slide rail 11 in the running process, abnormal sound is generated, and meanwhile, the risk of derailment is also generated if the offset angle is too large;
when the sliding rail 11 deviates, along with the operation of the crown block 12, the edge of the sliding rail 11 gradually approaches to the tapered block 22 on the traveling wheel 2, and finally contacts with the tapered block 22, and applies pressure to the tapered block 22, the tapered block 22 moves in the direction of the partition plate 21 along the axial direction of the traveling wheel 2 after being stressed, the tapered block 22 drives the elastic member 31 to move in the direction of the partition plate 21 while moving, and after the elastic member 31 receives the pulling force of the tapered block 22, the inner ring of the elastic member 31 contracts, that is, the inner diameter of the elastic member 31 decreases; after the inner diameter of the elastic part 31 is contracted, the inner ring of the elastic part 31 is attached to the rotating rod 32, and the rotating rod 32 has a certain limiting effect on the elastic part 31, so that the elastic part 31 is prevented from being stretched all the time under the pulling force of the conical block 22; because the forces are mutually applied, and the rotating rod 32 has a limiting effect on the elastic part 31, when the slide rail 11 applies pressure on the tapered block 22, the tapered block 22 applies repulsion to the slide rail 11 under the action of the elastic part 31, so that the slide rail 11 is pushed in the opposite direction of offset, and the phenomenon of derailment of the overhead travelling crane 12 when moving on the slide rail 11 is reduced;
the tapered block 22 is provided with the balls 25 which are circumferentially distributed along the bevel edge of the tapered block 22, and the included angle of 5 is larger than the angle of the chamfer 6, so that the balls 25 are in contact with the outer wall of the slide rail 11 after the tapered block 22 is in contact with the slide rail 11, the balls 25 on the tapered block 22 rotate along with the movement of the crown block 12, the static friction between the tapered block 22 and the slide rail 11 is converted into rolling friction, and meanwhile, the balls 25 limit the outer wall of the slide rail 11 to block, so that the risk of derailment of the walking wheel 2 in the moving process on the slide rail 11 is avoided;
because the movable block 24 is fixedly connected with the conical block 22, when the travelling wheel 2 rotates, the travelling wheel 2 drives the conical block 22 to rotate through the movable block 24, when the sliding rail 11 deviates due to the sedimentation of the bridge 1, along with the rotation of the travelling wheel 2, the sliding rail 11 is in contact with the conical block 22 and drives the conical block 22 to move towards the partition plate 21 along the sliding chute 23, at the moment, the elastic part 31 is pulled by the conical block 22, the inner diameter of the elastic part 31 shrinks and is attached to the outer wall of the rotating rod 32, and because the rotating rod 32 is rotatably connected with the fixed block 3, after the inner ring of the elastic part 31 is in contact with the outer wall of the rotating rod 32, the elastic part 31 limits the rotating rod 32; at this time, the rotating rod 32 and the inner ring of the elastic element 31 are fixedly connected together, and further the rotating rod 32 is driven to rotate synchronously when the traveling wheel 2 rotates, the cam 33 on the rotating rod 32 rotates synchronously in the rotating process of the rotating rod 32, and when the cam 33 rotates, the outer wall of the cam 33 extrudes the support frame 41, so that the support frame 41 moves downwards along the vertical direction of the installation groove 4, the support wheel 42 on the support frame 41 is in contact with the lower part of the slide rail 11, the support frame 41 lifts the crown block 12 upwards in the moving process, so that the two ends of the crown block 12 are in a relatively horizontal state, and the condition that the stress imbalance occurs at the connection part of the crown block 12 and the slide rail 11 after the bridge 1 is settled is reduced, and further the abnormal sound phenomenon occurs between the crown block 12 and the slide rail 11;
the larger the sedimentation amplitude of the bridge frame 1 is, the larger the offset angle of the slide rail 11 is, and further the larger the extrusion force of the slide rail 11 on the tapered block 22 is, the stronger the limitation of the elastic element 31 on the rotating rod 32 is, so that in the rotating process of the traveling wheel 2, the larger the rotation amplitude of the cam 33 is, the longer the moving distance of the support frame 41 is, and further the support frame 41 can move to the lower part of the slide rail 11 according to different sedimentation degrees;
when the bridge frame 1 has a small sedimentation degree, the restriction of the elastic member 31 on the rotating rod 32 is smaller, and although the traveling wheel 2 can drive the rotating rod 32 and the cam 33 to rotate synchronously through the elastic member 31, after the supporting wheel 42 contacts with the bottom of the sliding rail 11, the supporting frame 41 generates a certain repulsive force on the cam 33, the traveling wheel 2 continues to rotate at will, so that the rotating rod 32 is separated from the restriction of the elastic member 31, and thus when the traveling wheel 2 rotates, the rotating rod 32 rotates in the inner ring of the elastic member 31, and at this time, the cam 33 is in a relatively stable state;
because the supporting frame 41 is provided with the groove 43 attached to the cam 33, and the groove 43 limits the cam 33, when the cam 33 rotates, the outer wall of the cam 33 is always in contact with the bottom of the groove 43, the cam 33 limits the supporting frame 41 through the groove 43, and the supporting frame 41 is prevented from being inclined in the moving process; simultaneously because the inside fixedly connected with pressure-sensitive device of fixed block 3, pressure-sensitive device and elastic component 31 fixed connection, pressure-sensitive device adopts pressure sensor, elastic component 31 takes place to make pressure-sensitive device change after the deformation, pressure sensor conveys the numerical value that senses to outside control system, thereby can reach that slide rail 11 on that side takes place the skew, and how big is the range of skew, and then be convenient for follow-up workman to the maintenance of slide rail 11.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (7)
1. A powdery material suction overhead crane comprises a bridge (1), wherein a slide rail (11) is arranged on the top of the bridge (1), an overhead crane (12) is arranged on the slide rail (11), a vacuum suction machine (13) is arranged on the overhead crane (12), and the vacuum suction machine (13) sucks powdery materials into a storage bin of the vacuum suction machine (13) by utilizing negative pressure;
the method is characterized in that:
a travelling wheel (2) is arranged at the joint of the overhead travelling crane (12) and the bridge (1), two ends of the travelling wheel (2) are rotatably connected with partition plates (21), the top of each partition plate (21) is fixedly connected with the overhead travelling crane (12), and the travelling wheel (2) is driven by an external driving device;
the outer wall of the travelling wheel (2) is connected with a conical block (22) in a sliding manner, and the conical block (22) moves along the axial direction of the travelling wheel (2); a sliding groove (23) is formed in the outer wall of the traveling wheel (2), a movable block (24) is arranged inside the traveling wheel (2), and the movable block (24) penetrates through the sliding groove (23) and is fixedly connected with the inner wall of the conical block (22);
a fixed block (3) is fixedly connected inside the travelling wheel (2), two ends of the fixed block (3) are fixedly connected with elastic pieces (31), and the other ends of the elastic pieces (31) are fixedly connected with one ends of the movable blocks (24) close to the fixed block (3); the elastic piece (31) is a spring;
both ends of the fixed block (3) are rotatably connected with rotating rods (32), the rotating rods (32) are positioned at the inner ring part of the elastic part (31), the rotating rods (32) are rotatably connected with the movable block (24), and the movable block (24) moves along the axial direction of the rotating rods (32).
2. The powdery material sucking crown block according to claim 1, characterized in that: one end of the rotating rod (32) far away from the fixed block (3) extends into the partition plate (21), and one end of the rotating rod (32) far away from the fixed block (3) is fixedly provided with a cam (33);
mounting groove (4) have been seted up to the inside of baffle (21), and the inside of mounting groove (4) is provided with support frame (41), the top of support frame (41) and the outer wall contact of cam (33), and baffle (21) are stretched out to the bottom of support frame (41), and the bottom of support frame (41) is rotated and is connected with supporting wheel (42).
3. The powdery material sucking crown block according to claim 1, characterized in that: the outer wall of the conical block (22) is rotatably connected with balls (25) which are uniformly distributed, and the balls (25) are circumferentially distributed along the bevel edge of the conical block (22).
4. The powdery material sucking crown block according to claim 2, characterized in that: the top of support frame (41) is seted up flutedly (43), and recess (43) are the arc, and the tank bottom of recess (43) is laminated with the outer wall of cam (33) mutually, and cam (33) rotate the vertical direction reciprocating motion of drive support frame (41) along mounting groove (4).
5. The powdery material sucking crown block according to claim 3, characterized in that: the included angle that ball (25) that is close to walking wheel (2) outer wall on toper piece (22) and walking wheel (2) outer wall formed is established to contained angle (5), and slide rail (11) and the both sides of walking wheel (2) laminating department are equipped with chamfer (6), and the angle of contained angle (5) is greater than the angle of chamfer (6).
6. The powdery material sucking crown block according to claim 3, characterized in that: the outer walls of the conical block (22) and the ball (25) are coated with PTFE.
7. The powdery material sucking crown block according to claim 1, characterized in that: the inside fixedly connected with pressure-sensitive device of fixed block (3), pressure-sensitive device and elastic component (31) fixed connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211598342.9A CN115611152B (en) | 2022-12-14 | 2022-12-14 | Powdery material sucking crown block |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211598342.9A CN115611152B (en) | 2022-12-14 | 2022-12-14 | Powdery material sucking crown block |
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| CN115611152B CN115611152B (en) | 2023-04-07 |
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| CN210418972U (en) * | 2019-08-29 | 2020-04-28 | 河南德克起重配件有限公司 | Crane rail-gnawing-preventing wheel device |
| CN110745697A (en) * | 2019-11-01 | 2020-02-04 | 黄河勘测规划设计研究院有限公司 | Rail gnawing preventing method for operation mechanism of movable hoist of hydropower station |
| CN216997333U (en) * | 2021-11-02 | 2022-07-19 | 新疆昆玉钢铁有限公司 | Crown block wheel structure for gantry crane |
| CN114538277A (en) * | 2022-02-18 | 2022-05-27 | 张全胜 | Automatic guiding and deviation rectifying device of rail transport device |
| CN115265205A (en) * | 2022-06-20 | 2022-11-01 | 河南科特尔机械制造有限公司 | Roasting is with multi-functional overhead traveling crane suction discharge apparatus |
| CN115196509A (en) * | 2022-09-19 | 2022-10-18 | 河南科特尔机械制造有限公司 | Aluminum electrolysis material suction crown block unit |
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