CN218909706U - Online replacement stress release device for main hook steel wire rope of casting crane - Google Patents
Online replacement stress release device for main hook steel wire rope of casting crane Download PDFInfo
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- CN218909706U CN218909706U CN202221730515.3U CN202221730515U CN218909706U CN 218909706 U CN218909706 U CN 218909706U CN 202221730515 U CN202221730515 U CN 202221730515U CN 218909706 U CN218909706 U CN 218909706U
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Abstract
The utility model discloses an online replacement stress release device for a main hook steel wire rope of a casting crane, and relates to the technical field of stress release. The stress release assembly comprises a new steel wire rope, wherein the new steel wire rope is connected with an old steel wire rope through a stress release device; the hoisting assembly can wind the old steel wire rope and comprises a pulley assembly, wherein the pulley assembly comprises a plurality of movable pulleys, the movable pulleys are connected with the winding drum through the old steel wire rope, and the movable pulleys are fixedly connected with the gantry hook group. The utility model has the beneficial effects that: the stress is eliminated slowly by natural, the whole device is light in structure and good in stress eliminating effect, and the service life of the steel wire rope is prolonged; the rotary movable joint flexibly rotates, eliminates the phenomenon of overlarge stress kink, has strong use universality, and can be used in occasions where the wire ropes with the same type of large diameter, overlength and large internal stress are required to be installed on line and the stress is eliminated.
Description
Technical Field
The utility model relates to the technical field of casting cranes, in particular to an online replacement stress release device for a main hook steel wire rope of a casting crane.
Background
The foundry crane is an important device in a steelworks for charging and receiving a lifting operation across molten iron. Typically running at track elevations of 24-29m, the wire rope is one of the main force-bearing components. The main hoisting adopts 4 steel wire ropes with double hoisting points to wind, the number of moving and fixed pulleys is large, the multiplying power is 9, and the main hoisting is mainly stressed by stretching, bending, torsion, friction and the like. 11 casting cranes of the same type are used, the lifting capacity is between 240t and 260t, the using length of each casting crane is between 335m and 370m, the diameter model is the same, the cycle life is 5 months, the traditional new and old ropes are used for butt welding in a new mode when the steel wire ropes are replaced, and the new ropes are not timely and effectively eliminated in the manufacturing process or generate new internal stress when in transportation winding due to residual stress of the old ropes. When the new and old ropes are subjected to butt welding replacement, the shaking phenomenon of the steel wire ropes often occurs during operation, so that the steel wire ropes are twisted into twist or cage-shaped forms, the service lives of the steel wire ropes, the winding drums and the pulleys are influenced, great potential safety hazards exist, the breakage phenomenon of the steel wire ropes possibly occurs, and major accidents occur.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description summary and in the title of the application, to avoid obscuring the purpose of this section, the description summary and the title of the utility model, which should not be used to limit the scope of the utility model.
The present utility model has been made in view of the above and/or existing problems occurring in the prior art.
Therefore, the utility model aims to provide an online replacement stress release device for a main hook steel wire rope of a casting crane.
In order to solve the technical problems, the utility model provides the following technical scheme: the on-line replacement stress release device for the main hook steel wire rope of the casting crane comprises a stress release assembly and a lifting assembly; the stress release assembly comprises a new steel wire rope, and the new steel wire rope is connected with the old steel wire rope through a stress release device; the hoisting assembly can wind the old steel wire rope and comprises a pulley assembly, wherein the pulley assembly comprises a plurality of movable pulleys, the movable pulleys are connected with the winding drum through the old steel wire rope, and the movable pulleys are fixedly connected with the gantry hook group.
As a preferable scheme of the online replacement stress release device for the main hook steel wire rope of the casting crane, the utility model comprises the following steps: the novel steel wire rope is wound on the rotating support, and the rotating support is fixed on the ground.
As a preferable scheme of the online replacement stress release device for the main hook steel wire rope of the casting crane, the utility model comprises the following steps: the stress relief device includes a rotary union including a first joint and a second joint.
As a preferable scheme of the online replacement stress release device for the main hook steel wire rope of the casting crane, the utility model comprises the following steps: the first connector is internally provided with a T-shaped cavity, one end of the second connector is provided with a T-shaped bulge, and the T-shaped cavity can be matched and connected with the T-shaped bulge.
As a preferable scheme of the online replacement stress release device for the main hook steel wire rope of the casting crane, the utility model comprises the following steps: and the two ends of the rotary movable joint are respectively welded with a first joint steel wire and a second joint steel wire.
As a preferable scheme of the online replacement stress release device for the main hook steel wire rope of the casting crane, the utility model comprises the following steps: a first welding point is arranged at one end of the first joint steel wire, which is far away from the rotary movable joint, and one end of the old steel wire rope is welded with the first joint steel wire through the first welding point; and one end of the second joint steel wire, which is far away from the rotary movable joint, is provided with a second welding point, and one end of the new steel wire rope is welded with the second joint steel wire through the second welding point.
As a preferable scheme of the online replacement stress release device for the main hook steel wire rope of the casting crane, the utility model comprises the following steps: the pulley assembly further comprises a plurality of fixed pulleys and balance carrying poles, and the old steel wire rope bypasses the fixed pulleys and can be connected with two ends of the balance carrying poles.
As a preferable scheme of the online replacement stress release device for the main hook steel wire rope of the casting crane, the utility model comprises the following steps: the winding drum is provided with a steel wire rope pressing plate.
As a preferable scheme of the online replacement stress release device for the main hook steel wire rope of the casting crane, the utility model comprises the following steps: the winding drum is wound above the old wire rope ring.
As a preferable scheme of the online replacement stress release device for the main hook steel wire rope of the casting crane, the utility model comprises the following steps: the stress release assembly and the lifting assembly are both provided with two groups, each group of stress release assembly comprises two stress release devices, and the lifting assembly can wind two old steel wire ropes.
The utility model has the beneficial effects that:
the stress is eliminated slowly by natural, the whole device is light in structure and good in stress eliminating effect, and the service life of the steel wire rope is prolonged; the rotary movable joint flexibly rotates, eliminates the phenomenon of overlarge stress kink, has strong use universality, and can be used in occasions where the wire ropes with the same type of large diameter, overlength and large internal stress are required to be installed on line and the stress is eliminated.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic diagram of the overall structure of the online replacement stress release device for a main hook steel wire rope of a casting crane;
FIG. 2 is an enlarged schematic view of a stress relief device for online replacement of a stress relief device for a main hook wire rope of a casting crane according to the present utility model;
FIG. 3 is a schematic view and a sectional view of a rotary union of the online replacement stress release device of a main hook steel wire rope of a casting crane according to the utility model;
fig. 4 is a schematic diagram of a hoisting assembly of the online replacement stress release device for the main hook steel wire rope of the casting crane.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present utility model is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the utility model. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1, a first embodiment of the present utility model provides an on-line replacement stress relief device for a main hook wire rope of a casting crane, which includes a stress relief assembly 100 and a hoisting assembly 200; wherein the stress relief assembly 100 comprises a new wire rope 101, the new wire rope 101 being connected to an old wire rope 103 by a stress relief means 102; the hoisting assembly 200 can wind the old steel wire rope 103 and comprises a pulley assembly 201, the pulley assembly 201 comprises a plurality of movable pulleys 201a, the movable pulleys 201a are connected with a winding drum 202 through the old steel wire rope 103, and the movable pulleys 201a are fixedly connected with a gantry hook group 203.
The new wire rope 101 is wound around the rotating bracket 101a, and the rotating bracket 101a is fixed on the ground.
The stress relief means 102 comprises a rotary union 102a, the rotary union 102a comprising a first joint 102a-1 and a second joint 102a-2.
The first joint 102a-1 is internally provided with a T-shaped cavity Q, one end of the second joint 102a-2 is provided with a T-shaped bulge P, and the T-shaped cavity Q can be matched and connected with the T-shaped bulge P.
The two ends of the rotary movable joint 102a are respectively welded with a first joint steel wire 102b and a second joint steel wire 102c.
The end of the first joint wire 102b, which is far from the rotary union 102a, is provided with a first welding point 102b-1, and one end of the old wire rope 103 is welded with the first joint wire 102b through the first welding point 102 b-1.
The end of the second joint steel wire 102c, which is far away from the rotary union 102a, is provided with a second welding point 102c-1, and one end of the new steel wire rope 101 is welded with the second joint steel wire 102c through the second welding point 102 c-1.
The stress relief assembly 100 and the hoisting assembly 200 are provided with two sets, each set of stress relief assembly 100 comprising two stress relief means 102, the hoisting assembly 200 being capable of winding two old wire ropes 103.
Four new steel wire ropes 101 are put around the gantry hook group 203, four coils are arranged on the turntable support 101a, and the new steel wire ropes 101 can rotate around the turntable support 101a so as to facilitate the lifting and replacement of the subsequent steel wire ropes.
Before stress release, one end of the new steel wire rope 101 is welded with the second joint steel wire 102c through a second welding point 102 c-1; one end of the old wire rope 103 is welded to the first joint wire 102b through the first welding point 102 b-1.
Because the T-shaped cavity Q can be coupled with the T-shaped protrusion P in a mating manner, the second joint 102a-2 can be secured to rotate flexibly in the first joint 102a-1, and even if a stress or a sudden increase in torque is encountered in the lifting, the solution can be facilitated.
Example 2
Referring to the drawings, a second embodiment of the present utility model is different from the first embodiment in that: the pulley assembly 201 further comprises a plurality of fixed pulleys 201b and balance carrying poles 201c; old wire rope 103 can be connected to both ends of balance shoulder pole 201c around fixed pulley 201 b.
The spool 202 is provided with a wire rope press 202a.
The reel 202 winds the old wire rope 103 more than ten times.
The cross beam of the gantry hook group 203 is stably dropped on the bracket, and part of the old steel wire rope 103 is loosened, so that the old steel wire rope 103 on the winding drum 202 is kept for more than 10 circles.
Disassembling the old steel wire rope 103 at one end of the balance carrying pole 201c, welding the old steel wire rope 103 on the first welding point 102b-1, and similarly, disassembling the old steel wire rope 103 at the other end of the balance carrying pole 201c, and welding the old steel wire rope 103 on the other group of the first welding points 102 b-1; since the lifting assembly 200 is provided with two sets, the balance shoulder pole 201c is also provided with two sets, and the other repeats the above-described operation.
The shorting reel 202 is spirally limited, and the steel wire rope pressing plates 202a of the reel 202 are respectively loosened, so that the tail of the old steel wire rope 103 on the reel 202 is placed in the air; because the lifting assembly 200 is provided with two sets, the reel 202 is also provided with two sets, the other repeating the above operations.
The low-speed starting controller drives the old steel wire rope 103 to drive the new steel wire rope 101 to ascend according to the winding sequence of the pulley assembly 201, the stress release device 102 can be wound through the pulley assembly 201, and when a certain section of steel wire rope has overlarge stress kink, the rotary movable joint 102a of the stress release device 201 can freely rotate, and the ascending edge of the steel wire rope releases stress; when the tail of the old steel wire rope 103 is placed below the ground, the old steel wire rope is coiled manually, and when the stress release device 102 is placed below the ground, the cutting gun is used for cutting the rope heads of the new steel wire rope 101, namely, the positions of the first welding point 102b-1 and the second welding point 102c-1 are cut, and then the rope heads of the new steel wire rope 101 are respectively returned to the respective reels 202.
Example 3
Referring to fig. 4, a third embodiment of the present utility model is shown, which is different from the first two embodiments: the stress relief assembly 100 and the hoisting assembly 200 are provided with two sets, each set of stress relief assembly 100 comprising two stress relief means 102, the hoisting assembly 200 being capable of winding two old wire ropes 103.
Four new steel wire ropes are respectively rewound to two ends of the balance shoulder pole 201c, and the steel wire rope pressing plate 202a is closed again.
Four stress releasing devices 102 are recovered to be replaced next time, the spiral limit of the winding drum is recovered to lift the gantry hook group 203, and the stress rope replacement is eliminated.
In summary, the overall workflow of the stress release device is as follows:
one end of the new steel wire rope 101 is welded with the second joint steel wire 102c through a second welding point 102c-1, the old steel wire ropes 103 at the two ends of the balance carrying pole 201c are disassembled, and the new steel wire rope 101 is welded with the first joint steel wire 102b through a first welding point 102b-1, so that the new steel wire rope 101 is connected with the old steel wire ropes 103 through a stress releasing device 102; loosening the steel wire rope pressing plate 202a of the reel 202 to enable the tail of the old steel wire rope 103 on the reel 202 to be placed in the air; the low-speed starting controller drives the old steel wire rope 103 to drive the new steel wire rope 101 to ascend according to the winding sequence of the pulley assembly 201, the stress release device 102 can be wound through the pulley assembly 201, and when a certain section of steel wire rope has overlarge stress kink, the rotary movable joint 102a of the stress release device 201 can freely rotate, and the ascending edge of the steel wire rope releases stress; when the tail of the old steel wire rope 103 is placed below the ground respectively and coiled by manpower, when the stress release device 102 is placed below the ground, cutting the rope heads of the new steel wire rope 101 by using a cutting gun, namely cutting the positions of the first welding point 102b-1 and the second welding point 102c-1, and then respectively and repeatedly installing the rope heads of the new steel wire rope 101 to the respective reels 202; four new steel wire ropes are respectively assembled at two ends of the balance shoulder pole 201c, and the steel wire rope pressing plate 202a is closed again; four stress releasing devices 102 are recovered to be replaced next time, the spiral limit of the winding drum is recovered to lift the gantry hook group 203, and the stress rope replacement is eliminated.
It should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present utility model may be modified or substituted without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered in the scope of the claims of the present utility model.
Claims (10)
1. The utility model provides a casting crane main hook wire rope changes stress relief device on line which characterized in that: comprising the steps of (a) a step of,
-a stress relief assembly (100) comprising a new wire rope (101), said new wire rope (101) being connected to an old wire rope (103) by a stress relief means (102);
hoisting assembly (200), can twine old wire rope (103), it includes pulley assembly (201), pulley assembly (201) are including a plurality of movable pulleys (201 a), movable pulleys (201 a) link to each other with reel (202) through old wire rope (103), movable pulleys (201 a) and longmen hook group (203) fixed connection.
2. The cast crane main hook wire rope on-line replacement stress release device according to claim 1, wherein: the novel steel wire rope (101) is wound on a rotating bracket (101 a), and the rotating bracket (101 a) is fixed on the ground.
3. The cast crane main hook wire rope on-line replacement stress release device according to claim 2, wherein: the stress relief device (102) includes a rotary union (102 a), the rotary union (102 a) including a first joint (102 a-1) and a second joint (102 a-2).
4. The cast crane main hook wire rope on-line replacement stress release device according to claim 3, wherein: the first connector (102 a-1) is internally provided with a T-shaped cavity (Q), one end of the second connector (102 a-2) is provided with a T-shaped bulge (P), and the T-shaped cavity (Q) can be matched and connected with the T-shaped bulge (P).
5. The cast crane main hook wire rope on-line replacement stress release device according to claim 3 or 4, wherein: the two ends of the rotary movable joint (102 a) are respectively welded with a first joint steel wire (102 b) and a second joint steel wire (102 c).
6. The cast crane main hook wire rope on-line replacement stress release device according to claim 5, wherein: one end of the first joint steel wire (102 b) far away from the rotary movable joint (102 a) is provided with a first welding point (102 b-1), and one end of the old steel wire rope (103) is welded with the first joint steel wire (102 b) through the first welding point (102 b-1);
one end of the second joint steel wire (102 c) far away from the rotary movable joint (102 a) is provided with a second welding point (102 c-1), and one end of the new steel wire rope (101) is welded with the second joint steel wire (102 c) through the second welding point (102 c-1).
7. The cast crane main hook wire rope on-line replacement stress release device according to any one of claims 1 to 4 and 6, characterized in that: the pulley assembly (201) further comprises a plurality of fixed pulleys (201 b) and a balance carrying pole (201 c), and the old steel wire rope (103) bypasses the fixed pulleys (201 b) and can be connected with two ends of the balance carrying pole (201 c).
8. The cast crane main hook wire rope on-line replacement stress release device according to claim 7, wherein: the reel (202) is provided with a wire rope press plate (202 a).
9. The cast crane main hook wire rope on-line replacement stress release device according to any one of claims 1 to 4, 6 and 8, characterized in that: the winding drum (202) winds the old steel wire rope (103) for more than ten times.
10. The cast crane main hook wire rope on-line replacement stress release device according to claim 9, wherein: the stress relief assembly (100) and the lifting assembly (200) are both provided with two groups, each group of stress relief assembly (100) comprises two stress relief devices (102), and the lifting assembly (200) can wind two old steel wire ropes (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221730515.3U CN218909706U (en) | 2022-07-04 | 2022-07-04 | Online replacement stress release device for main hook steel wire rope of casting crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221730515.3U CN218909706U (en) | 2022-07-04 | 2022-07-04 | Online replacement stress release device for main hook steel wire rope of casting crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218909706U true CN218909706U (en) | 2023-04-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221730515.3U Active CN218909706U (en) | 2022-07-04 | 2022-07-04 | Online replacement stress release device for main hook steel wire rope of casting crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218909706U (en) |
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2022
- 2022-07-04 CN CN202221730515.3U patent/CN218909706U/en active Active
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