CN110994471A - Threading guide device for corrugated rubber hose - Google Patents
Threading guide device for corrugated rubber hose Download PDFInfo
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- CN110994471A CN110994471A CN201911153782.1A CN201911153782A CN110994471A CN 110994471 A CN110994471 A CN 110994471A CN 201911153782 A CN201911153782 A CN 201911153782A CN 110994471 A CN110994471 A CN 110994471A
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- ball
- rubber hose
- conical
- corrugated rubber
- external thread
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/06—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle
- H02G1/08—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling
- H02G1/081—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for laying cables, e.g. laying apparatus on vehicle through tubing or conduit, e.g. rod or draw wire for pushing or pulling using pulling means at cable ends, e.g. pulling eyes or anchors
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Abstract
A threading guiding device for corrugated rubber hose belongs to the auxiliary device field that uses when rail vehicle overlength cable is threaded in corrugated rubber hose, and it includes cone guide end, a plurality of ball, fastening bolt and sinle silk antiskid sleeve pipe, and cone guide end includes integrated into one piece's cone ball holder and external screw thread centre gripping cover. The invention has simple and practical structure and convenient operation, reduces the manual demand of threading operation of the corrugated rubber hose from three people to only two people, further reduces the labor cost and improves the production efficiency and the economic benefit.
Description
Technical Field
The invention belongs to the field of auxiliary devices used when an ultra-long cable of a railway vehicle is threaded in a corrugated rubber hose, and particularly relates to a threading guide device for the corrugated rubber hose.
Background
As shown in fig. 1, the core structure of the cable 5 is a core conductor 5-1 and a cable sheath layer 5-2 wrapped outside the core conductor. According to statistics, in the manufacturing process of urban railways and high-speed rail trains, various lead cables 5 with the total length of about 15 ten thousand meters are required for the whole trains to be used for power transmission or communication control, and the length of each carriage is more than 10 meters, so that the proportion of the ultra-long cables with the length of more than 10 meters in various distribution lines is large, and the ultra-long cables account for more than 50% of the total amount of the cables of the whole trains.
The corrugated rubber hose is a conventional cable protection device in industrial wiring, is formed by sequentially connecting a plurality of links and has better flexibility and ductility. Corrugated rubber hose is used for the cover at single cable or cover in bundle with the outside of cable harness, forms extra protective layer, plays multiple effects such as dustproof, fire prevention, waterproof, sun-proof and absorption vibrations or impact, can effectively avoid the fish tail and the damage of cable, extension cable life by a wide margin to low cost, consequently use extensively.
However, when the cable 5 passes through the inner cavity of the corrugated rubber hose, the boundary line of every two adjacent links of the inner side wall of the corrugated rubber hose can generate frictional resistance to the outer wall of the cable sheath layer 5-2 which penetrates into the corrugated rubber hose, and the frictional resistance is in positive linear correlation with the total length contact area of the friction surface. When the required cable threading length is less than 5 meters, the resistance is still easy to overcome, and no excessive obstruction to the operation is caused. However, when the threading length exceeds 10 meters, even 25 meters, the threading process becomes extremely difficult.
The prior art of the threading procedure of the rail vehicle is that at least three operators are matched with each other, one operator swings the middle and rear sections of the corrugated rubber hose by hands at the front section, the cable is guided to penetrate through the hose by utilizing centrifugal force, the corrugated rubber hose is supported at the middle part by a second operator, the bent and twisted part of the corrugated rubber hose is straightened, the corrugated rubber hose is prevented from falling to the bottom surface, the cable 4 is sent into the inlet end of the corrugated rubber hose by a third operator, sufficient thrust is applied to overcome frictional resistance, and the threading operation of the corrugated rubber hose can be completed. However, the traditional threading method for the corrugated hose is heavy in workload, high in labor intensity, high in labor cost, low in production efficiency and poor in economic benefit, and becomes an important factor for restricting the improvement of production benefit.
Disclosure of Invention
The invention provides a threading guide device for a corrugated rubber hose, which aims to solve the technical problems that the inner side wall of the existing corrugated rubber hose link can generate frictional resistance to a cable sheath layer penetrating into the corrugated rubber hose link, the corrugated rubber hose cannot be in a concentric state with a cable due to bending and twisting in the threading process, and the end of the cable is propped or blocked by the inner wall of the corrugated rubber hose sometimes, so that the existing threading method for the corrugated rubber hose can be completed only by matching at least three operators, the workload is abnormally heavy, the labor intensity is high, the labor cost is high, the production efficiency is low, and the economic benefit is poor.
The technical scheme adopted by the invention for solving the technical problem is as follows:
the threading guide device for the corrugated rubber hose comprises a cone guide end, a plurality of balls, a fastening bolt and a wire core anti-slip sleeve, wherein the cone guide end comprises an integrally formed cone ball retainer and an external thread clamping sleeve, a central through hole is formed in the conical bottom surface of the cone ball retainer, and the external thread clamping sleeve is coaxially connected with the conical bottom surface of the cone ball retainer; the conical surface of the conical ball retainer is provided with a ball embedding cavity helical line array which is formed by a plurality of ball embedding cavities according to the conical helical line array, and each ball is embedded into a corresponding ball embedding cavity; the fastening bolt is in threaded connection with the external thread clamping sleeve, and a plurality of through rectangular slits parallel to the axial direction of the external thread clamping sleeve are arranged on the side wall of the port of the external thread clamping sleeve; the core antiskid sleeve pipe is coaxially and fixedly connected with the inner side wall of the external thread clamping sleeve.
The total length value of the cone guide end is 40% of the inner diameter value of the corrugated rubber hose, and the length value of the fastening bolt is 20% of the inner diameter value of the corrugated rubber hose; the length of the core antiskid sleeve is the same as that of the fastening bolt.
The ball embedding cavity spiral line array is formed by arranging a plurality of ball embedding cavities according to the same conical spiral line array, and the height value H1 of the conical spiral line is 90% of the height value H2 of the conical surface of the conical ball retainer; the number of turns of the conical thread line is not less than three.
Any two balls which are adjacent in sequence and arranged in the same conical spiral line array are embedded into the cavity, and the conical angle interval of the two balls on the circumference of the conical projection bottom surface of the conical thread line is 15 degrees; the diameter of the ball is 3% -5% of the inner diameter value of the corrugated rubber hose, and the ball is embedded into the ball embedding cavity to form a rolling friction pair.
The number of the ball embedding cavities in the ball embedding cavity spiral line array is not less than 40.
The number of the slits of the rectangular slits on the side wall of the port of the external thread clamping sleeve is at least two, and the plurality of slits are all uniformly distributed at equal intervals according to the same circumferential angle by taking the side wall of the external thread clamping sleeve as a rotating circumference.
The invention has the beneficial effects that: the threading guide device for the corrugated rubber hose is characterized in that a plurality of balls are arranged on the conical surface of the cone guide end in a conical spiral manner, so that a conical spiral ball array is formed. The threading guide device is matched with the fastening bolt and the wire core anti-slip sleeve to clamp and fix the wire core conductor, so that the threading guide device and the cable are connected into a whole, and the cable can be always kept concentric with the inner diameter of the corrugated rubber hose in the threading process.
The axial total length of the device is 60% of the inner diameter value of the corrugated rubber hose, so that the threading guide device can effectively ensure that the threading guide device has a smaller turning radius when passing through the corrugated rubber hose, and further can smoothly and quickly pass through a corrugated rubber hose bending section with smaller curvature, and the occurrence of blocking and blocking conditions is reduced. Its ball array according to circular cone helix structure can adapt to the link structure in the corrugated rubber hose inner chamber better, this structure sets up the rolling friction who changes the sliding friction of cable lateral wall when the threading into every ball on the circular cone helix linear array, thereby play the lubrication action, reduce the produced frictional resistance of corrugated rubber hose link inside wall to the cable sheath layer that wears wherein by a wide margin, reduce the retardation rate and the threading degree of difficulty, effectively it takes place to stop the condition that the cable tip withstood or blocked the card by the corrugated rubber hose inner wall. And the manual demand of threading operation of the corrugated rubber hose is reduced from three people to only two people, so that the labor cost is reduced, and the production efficiency and the economic benefit are improved.
In addition, the threading guide device for the corrugated rubber hose also has the advantages of simple and practical structure, convenience in operation, low cost, convenience in popularization and the like.
Drawings
FIG. 1 is a schematic perspective view of a prior art cable;
FIG. 2 is a perspective view of the threading guide for a corrugated rubber hose of the present invention;
FIG. 3 is an exploded view of the assembly of the threading guide for corrugated rubber hose of the present invention;
FIG. 4 is a schematic perspective view of the cone pilot tip of the present invention assembled with a ball bearing;
FIG. 5 is a schematic perspective view of the cone pilot tip of the present invention;
FIG. 6 is a schematic axial cross-sectional view of the cone pilot tip of the present invention;
FIG. 7 is a top view of the cone pilot tip of the present invention;
FIG. 8 is a schematic view showing the application of the threading guide device for a corrugated rubber hose of the present invention;
fig. 9 is an exploded view of the assembly of fig. 8.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below.
As shown in fig. 2 to 7, the threading guide device for the corrugated rubber hose of the present invention comprises a cone guide end 1, balls 2, a fastening bolt 3 and a core anti-slip sleeve 4, wherein the cone guide end 1 comprises a cone ball retainer 1-1 and an external thread clamping sleeve 1-2 which are integrally formed, a central through hole 1-1-2 is formed in the conical bottom surface of the cone ball retainer 1-1, and the external thread clamping sleeve 1-2 is coaxially connected with the conical bottom surface of the cone ball retainer 1-1.
The conical surface of the conical ball retainer 1-1 is provided with a ball embedding cavity helical line array 1-1-1 which is jointly formed by a plurality of ball embedding cavities 1-1-1-1 according to conical helical line arrays, and each ball 2 is embedded into a corresponding ball embedding cavity 1-1-1-1.
The fastening bolt 3 is in threaded connection with the external thread clamping sleeve 1-2, and a plurality of through rectangular slits 1-2-1 parallel to the axial direction of the external thread clamping sleeve 1-2 are arranged on the side wall of the port of the external thread clamping sleeve 1-2; the core antiskid sleeve 4 is coaxially and fixedly connected with the inner side wall of the external thread clamping sleeve 1-2.
The total length value of the cone guide end head 1 is 40% of the inner diameter value of the corrugated rubber hose, and the length value of the fastening bolt 3 is 20% of the inner diameter value of the corrugated rubber hose; the length of the core antiskid sleeve 4 is the same as that of the fastening bolt 3. The structure arrangement can effectively ensure that the threading guide device has smaller turning radius when passing through the corrugated rubber hose, so that the threading guide device can smoothly and quickly pass through the bent section of the corrugated rubber hose with larger curvature, and the occurrence of blocking and blocking conditions is reduced.
The ball embedding cavity helical line array 1-1-1 is formed by arranging a plurality of ball embedding cavities 1-1-1-1 according to the same conical helical line array, and the height value H1 of the conical helical line is 90% of the height value H2 of the conical surface of the conical ball retainer 1-1; the number of turns of the conical thread line is not less than three.
As shown in fig. 7, any two balls adjacent in sequence arranged in the same conical helical line array are embedded into the cavity 1-1-1-1, and the conical angle interval of the two balls on the circumference of the conical projection bottom surface of the conical thread line is 15 degrees; the diameter of the ball 2 is 3 to 5 percent of the inner diameter value of the corrugated rubber hose, the number of the ball embedding cavities 1-1-1-1 on the ball embedding cavity helical line array 1-1-1 is not less than 40, and the ball 2 is embedded into the ball embedding cavities 1-1-1-1 to form a rolling friction pair. The 2 arrays of ball that arrange according to circular cone helical line structure can adapt to the link structure in the ripple rubber hose inner chamber better, and this structure setting changes the sliding friction of cable lateral wall when the threading into the rolling friction of every ball 2 on the circular cone helical line array to reduce threading guiding device's whole frictional force by a wide margin, play the lubrication action, reduce the retardation rate, reduce the threading degree of difficulty.
The number of the slits of the rectangular slits 1-2-1 on the side wall of the port of the external thread clamping sleeve 1-2 is at least two, and the plurality of slits are uniformly distributed at equal intervals according to the same circumferential angle, and the side wall of the external thread clamping sleeve 1-2 is a rotating circumference.
The ball embedding cavity helical line array 1-1-1 is formed by a plurality of ball embedding cavities 1-1-1 which are arranged in a conical helical line array, and each ball embedding cavity 1-1-1 is embedded with a ball 2 which corresponds to each other one by one, so that the balls 2 form the conical helical line ball array which is arranged in a conical helical line; the connection structure of each ball 2 in the conical spiral line ball array and the conical ball retainer 1-1 can be replaced by a well-known mature universal ball bulleye structure, namely: each ball embedding cavity 1-1-1 on the cone guide end head 1 is replaced by a base counter bore of a universal ball bullseye structure, a ball 2 in a rotating amplitude form is correspondingly embedded in the base of each universal ball bullseye structure, and the base of each universal ball bullseye structure is installed in the base counter bore arranged on the cone guide end head 1 according to a conical spiral line, so that the effect of a conical spiral line ball array completely identical to that of the cone ball retainer 1-1 is achieved.
The manufacturing standard and technology of the Ball embedding cavity 1-1-1-1 adopt a well-known mature method which is completely the same as the manufacturing process of a Ball hole on a Ball sleeve retainer. Specifically, when the threading guide device for a corrugated rubber hose of the present invention is applied, as shown in fig. 8 and 9, the core conductor 5-1 is inserted into the conical ball retainer 1-1 after passing through the fastening bolt 3 and the external thread holding sleeve 1-2 in sequence, and then the fastening bolt 3 is rotated along the thread line of the external thread holding sleeve 1-2 to be fastened to the thread end of the root of the external thread holding sleeve 1-2. In the process, the fastening bolt 3 also radially folds and extrudes the outer side wall of the external thread clamping sleeve 1-2 corresponding to the section 1-2-1 of the rectangular slit, and the generated radial pressure is transmitted to the core conductor 5-1 through the core antiskid sleeve 4 positioned in the external thread clamping sleeve 1-2, so that the core conductor 5-1 and the external thread clamping sleeve 1-2 are coaxially locked through static friction force.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A threading guiding device for corrugated rubber hose which characterized in that: the device comprises a cone guide end (1), a plurality of balls (2), a fastening bolt (3) and a wire core anti-skid sleeve (4), wherein the cone guide end (1) comprises a cone ball retainer (1-1) and an external thread clamping sleeve (1-2) which are integrally formed, a central through hole (1-1-2) is formed in the conical bottom surface of the cone ball retainer (1-1), and the external thread clamping sleeve (1-2) is coaxially connected with the conical bottom surface of the cone ball retainer (1-1);
the conical surface of the conical ball retainer (1-1) is provided with a ball embedding cavity helical line array (1-1-1) which is jointly formed by a plurality of ball embedding cavities (1-1-1-1) according to a conical helical line array, and each ball (2) is embedded into a corresponding ball embedding cavity (1-1-1-1);
the fastening bolt (3) is in threaded connection with the external thread clamping sleeve (1-2), and the side wall of the port of the external thread clamping sleeve (1-2) is provided with a plurality of through rectangular slits (1-2-1) parallel to the axial direction of the external thread clamping sleeve (1-2); the core antiskid sleeve (4) is coaxially and fixedly connected with the inner side wall of the external thread clamping sleeve (1-2).
2. The threading guide for a corrugated rubber hose as claimed in claim 1, wherein: the total length value of the cone guide end head (1) is 40% of the inner diameter value of the corrugated rubber hose, and the length value of the fastening bolt (3) is 20% of the inner diameter value of the corrugated rubber hose; the length of the core antiskid sleeve (4) is the same as that of the fastening bolt (3).
3. The threading guide for a corrugated rubber hose as claimed in claim 2, wherein: the ball embedding cavity helical line array (1-1-1) is formed by arranging a plurality of ball embedding cavities (1-1-1-1) according to the same conical helical line array, and the height value H1 of the conical helical line is 90% of the height value H2 of the conical surface of the conical ball retainer (1-1); the number of turns of the conical thread line is not less than three.
4. A threading guide device for a corrugated rubber hose as claimed in claim 3, wherein: any two sequentially adjacent balls arranged in the same conical spiral line array are embedded into the cavity (1-1-1-1), and the conical angle interval of the two balls on the circumference of the conical projection bottom surface of the conical thread line is 15 degrees; the diameter of the ball (2) is 3 to 5 percent of the inner diameter value of the corrugated rubber hose, and the ball (2) is embedded into the ball embedding cavity (1-1-1-1) to form a rolling friction pair.
5. The threading guide for a corrugated rubber hose as claimed in claim 4, wherein: the number of the ball embedding cavities (1-1-1-1) on the ball embedding cavity helical line array (1-1-1) is not less than 40.
6. The threading guide for a corrugated rubber hose as claimed in claim 5, wherein: the number of the slits of the rectangular slits (1-2-1) on the side wall of the port of the external thread clamping sleeve (1-2) is at least two, and the plurality of slits are uniformly distributed at equal intervals according to the same circumferential angle, and the side wall of the external thread clamping sleeve (1-2) is a rotating circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153782.1A CN110994471A (en) | 2019-11-22 | 2019-11-22 | Threading guide device for corrugated rubber hose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911153782.1A CN110994471A (en) | 2019-11-22 | 2019-11-22 | Threading guide device for corrugated rubber hose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110994471A true CN110994471A (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911153782.1A Pending CN110994471A (en) | 2019-11-22 | 2019-11-22 | Threading guide device for corrugated rubber hose |
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| CN (1) | CN110994471A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112350221A (en) * | 2020-11-20 | 2021-02-09 | 江门市新会区宏信科技有限公司 | Threading apparatus for network engineering |
| CN114453969A (en) * | 2022-04-11 | 2022-05-10 | 常州市优耐特精密钣金有限公司 | Sheet metal machining platform and operation method thereof |
| CN114955102A (en) * | 2022-07-28 | 2022-08-30 | 安徽唯嵩光电科技有限公司 | Core cylinder and conveying mechanism for plastic foaming mesh bag set |
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| CN114453969A (en) * | 2022-04-11 | 2022-05-10 | 常州市优耐特精密钣金有限公司 | Sheet metal machining platform and operation method thereof |
| CN114955102A (en) * | 2022-07-28 | 2022-08-30 | 安徽唯嵩光电科技有限公司 | Core cylinder and conveying mechanism for plastic foaming mesh bag set |
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Application publication date: 20200410 |