CN212101760U - Novel combined rope supporting roller - Google Patents
Novel combined rope supporting roller Download PDFInfo
- Publication number
- CN212101760U CN212101760U CN201922033715.8U CN201922033715U CN212101760U CN 212101760 U CN212101760 U CN 212101760U CN 201922033715 U CN201922033715 U CN 201922033715U CN 212101760 U CN212101760 U CN 212101760U
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- roller
- supporting roller
- rope supporting
- rope
- support
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Abstract
The novel combined rope supporting roller comprises a rope supporting roller arranged behind a basic arm, wherein two ends of the rope supporting roller are fixed on the basic arm through a support a, an auxiliary roller is arranged below the middle of the rope supporting roller, and two ends of the auxiliary roller are fixed on the basic arm through a support b. The utility model discloses a combination formula holds in palm rope gyro wheel increases two supplementary gyro wheels under long gyro wheel middle section, when not influencing former gyro wheel self rotational degree of freedom, provides effective support for long gyro wheel middle section, improves bearing roller interlude bending resistance by a wide margin. The fastening bolts at the end parts of the rollers bear shearing force, the number of the sheared bolts is increased by two from the initial two to six, and the reliability of the bolts is obviously enhanced.
Description
Technical Field
The utility model relates to a flexible jib loading boom equipment technical field of hoist specifically is a novel combination formula holds in palm rope gyro wheel.
Background
The boom is the most important working part of a mobile crane, of which the box-type telescopic boom is the most common one. At present, a wheel crane is developed to a kiloton level, and the height and width of the cross section of a crane arm are increased along with the continuous improvement of the hoisting performance of the arm support; in the layout of the whole machine, the upper plane of the crane boom is far higher than the winch in the running state. In the whole rope winding link from the rope releasing of the steel wire rope from the winch to the winding lifting hook through the arm head pulley, the tail part of the basic arm is the turning position of the steel wire rope, and in order to prevent the steel wire rope from being abnormally worn and prolong the service life, the tail part of the basic arm is provided with a rope supporting roller.
When the existing rope supporting roller is used for winding and unwinding a steel wire rope, the tensile force of the steel wire rope is borne completely by the structural strength of the roller sleeve. The movement track of the steel wire rope on the winch determines that the span of the rope supporting roller is large, and only two sections of fixed supporting modes can be adopted. When the tensile force of the steel wire rope reaches a certain value, the self structure of the rolling sleeve reaches the bending resistance limit, the whole rope supporting roller is bent, and the self rotation function fails, at the moment, the rolling friction between the steel wire rope and the rope supporting roller is changed into sliding friction, the abrasion of the steel wire rope is aggravated, the steel wire rope is broken and scrapped if the abrasion is slight, and the hoisting accident is caused if the steel wire rope is broken if the abrasion is serious.
Disclosure of Invention
The utility model aims to solve the technical problem that overcome above-mentioned prior art not enough, provide a simple structure, respond well novel combination formula support rope gyro wheel.
The utility model discloses a be implemented with following technical scheme: the novel combined rope supporting roller comprises a rope supporting roller arranged behind a basic arm, wherein two ends of the rope supporting roller are fixed on the basic arm through a support a, an auxiliary roller is arranged below the middle of the rope supporting roller, and two ends of the auxiliary roller are fixed on the basic arm through a support b.
It further comprises the following steps: the auxiliary rollers are symmetrically arranged below the rope supporting roller, a gap is formed between the two auxiliary rollers, and the auxiliary rollers are tangent to the rope supporting roller.
The height of the bracket b is lower than the lowest position of the rope supporting roller.
The auxiliary roller comprises a roller sleeve and a mandrel, the mandrel penetrates through the roller sleeve and is connected with a support b through a bolt, and a bearing and a gasket are arranged between the two ends of the mandrel and the support b.
The bracket a and the bracket b are integrated.
The roller sleeve of the rope supporting roller is a solid roller sleeve, and two ends of the rope supporting roller are respectively connected with the mandrel.
The utility model has the advantages of it is following: the utility model discloses a combination formula holds in palm rope gyro wheel and is fixed in basic arm for wire rope's protection when the hoist receive and releases prevents that wire rope and basic arm from producing sliding wear. According to the brand new combined type rope supporting roller, the tangent auxiliary supporting roller is additionally arranged below the original roller, so that the bending resistance of the middle section of the roller is greatly improved while the self-rotation freedom degree of the original roller is not influenced; the hoisting accidents caused by abnormal abrasion and strand breakage of the steel wire rope, even overall breakage and the like after the steel wire rope of the hoisting weight of the super-tonnage crane bends the rope supporting roller at present are solved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the structure of the present invention;
fig. 3 is a front view of the present invention;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;
in the figure: 1. rope supporting roller 2, supports a and 3, rolling sleeves 4, mandrels 5, bearings 6, gaskets 7, bolts 8, auxiliary rollers 9, supports b and 10 and basic arms.
Detailed Description
The novel combined rope supporting roller shown in fig. 1 to 4 comprises a rope supporting roller 1 arranged behind a basic arm 10, wherein two ends of the rope supporting roller 1 are fixed on the basic arm 10 through a bracket a2, an auxiliary roller 8 is arranged below the middle part of the rope supporting roller 1, and two ends of the auxiliary roller 8 are fixed on the basic arm 10 through a bracket b 9. The utility model discloses a novel rope gyro wheel is held in palm to combination formula increases supplementary tangent support roller under long gyro wheel middle section, constitutes the dead axle train, improves the whole bending resistance of gyro wheel, guarantees its rotational freedom degree, when not influencing former gyro wheel self rotational freedom degree, provides effective support for long gyro wheel middle section, improves bearing roller interlude bending resistance by a wide margin. The fastening bolts at the end parts of the rollers bear shearing force, the number of the sheared bolts is increased by two from the initial two to six, and the reliability of the bolts is obviously enhanced.
As shown in fig. 1 to 4, the number of the auxiliary rollers 8 is two, the two auxiliary rollers 8 are symmetrically arranged below the rope supporting roller 1, a gap is formed between the two auxiliary rollers 8, and the auxiliary rollers 8 are tangent to the rope supporting roller 1. The height of the bracket b9 is lower than the lowest position of the rope supporting roller 1. The three rollers and the bracket of the utility model form a fixed-axis wheel train, in the wheel train, the rope supporting roller is a driving wheel, and the two auxiliary rollers are driven wheels; the rope supporting roller is tangent to the two auxiliary rollers at the same time, and the two auxiliary rollers are not contacted with each other. When the winch receives and releases the steel wire rope, the rope supporting idler wheel rotates under the static friction action of the steel wire rope, and the two auxiliary wheels rotate reversely under the friction action of the rope supporting idler wheel. Under the pressure of the steel wire rope, three rollers of the combined rope supporting roller bear the weight of simultaneously, and the problem of bending deformation of the middle section of the single long-span rope supporting roller after being pressed can be effectively solved. The rope supporting roller is not deformed and always keeps the rotational freedom degree, and always keeps rolling friction with the steel wire rope, so that the problems of abrasion strand breakage and even integral breakage of the steel wire rope caused by sliding friction are prevented; the safety of the whole machine low-angle hoisting operation is greatly improved. The installation distance of the two auxiliary rollers on the bracket b is to ensure that the bracket b and the rope supporting roller keep enough safety distance while the auxiliary rollers are tangent to the rope supporting roller.
The novel combined type rope supporting roller as shown in fig. 1 to 4, the auxiliary roller 8 comprises a roller 3 and a mandrel 4, the mandrel 4 passes through the roller 3 and is connected with a bracket b9 through a bolt 7, and a bearing 5 and a gasket 6 are arranged between two ends of the mandrel 4 and a bracket b 9. The utility model discloses an auxiliary roller comprises roller and dabber, and the roller is hollow structure, and the roller cover is at the dabber, and whole gyro wheel passes through the bolt and makes dabber part fixed with support b, places the gasket between dabber and support b, when guaranteeing that dabber and support b are fixed as an organic whole, the roller edge not with the support contact, make the roller can be around the dabber free rotation. The support b is fastened on the basic arm through a bolt, so that the full constraint of the degree of freedom outside the self rotational degree of freedom of the roller is realized, and the structural composition and the installation method of the rope supporting roller are the same as those of the auxiliary roller.
The novel combined type supporting rope roller is shown in fig. 1 to 4, and the bracket a2 and the bracket b9 are integrated. The utility model discloses a two directness can be a whole, can effectively guarantee the reliability of installation to and the portability of use.
As shown in fig. 1 to 4, the roller of the rope supporting roller 1 is a solid roller, and two ends of the rope supporting roller 1 are respectively connected with the mandrel. The utility model discloses a roller of support rope gyro wheel also can be solid roller, and both ends and the spindle connection through solid roller, solid roller can improve the intensity of support rope gyro wheel.
Claims (6)
1. The utility model provides a novel rope gyro wheel is held in palm to combination formula which characterized in that: the rope supporting device is characterized by comprising a rope supporting roller (1) arranged behind a basic arm (10), wherein two ends of the rope supporting roller (1) are fixed on the basic arm (10) through a support a (2), an auxiliary roller (8) is arranged below the middle of the rope supporting roller (1), and two ends of the auxiliary roller (8) are fixed on the basic arm (10) through a support b (9).
2. The novel combined type rope supporting roller as claimed in claim 1, wherein: the rope supporting roller is characterized in that the number of the auxiliary rollers (8) is two, the two auxiliary rollers (8) are symmetrically arranged below the rope supporting roller (1), a gap is formed between the two auxiliary rollers (8), and the auxiliary rollers (8) are tangent to the rope supporting roller (1).
3. The novel combined type rope supporting roller as claimed in claim 2, wherein: the height of the support b (9) is lower than the lowest position of the rope supporting roller (1).
4. The novel combined type rope supporting roller as claimed in claim 1, wherein: the auxiliary roller (8) comprises a roller (3) and a mandrel (4), the mandrel (4) penetrates through the roller (3) and is connected with a support b (9) through a bolt (7), and a bearing (5) and a gasket (6) are arranged between the two ends of the mandrel (4) and the support b (9).
5. The novel combined type rope supporting roller as claimed in claim 1, wherein: the bracket a (2) and the bracket b (9) are integrated.
6. The novel combined type rope supporting roller as claimed in claim 1, wherein: the roller sleeve of the rope supporting roller (1) is a solid roller sleeve, and two ends of the rope supporting roller (1) are respectively connected with the mandrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922033715.8U CN212101760U (en) | 2019-11-22 | 2019-11-22 | Novel combined rope supporting roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922033715.8U CN212101760U (en) | 2019-11-22 | 2019-11-22 | Novel combined rope supporting roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212101760U true CN212101760U (en) | 2020-12-08 |
Family
ID=73621366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922033715.8U Active CN212101760U (en) | 2019-11-22 | 2019-11-22 | Novel combined rope supporting roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212101760U (en) |
-
2019
- 2019-11-22 CN CN201922033715.8U patent/CN212101760U/en active Active
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