CN111244813B - Contact wire lossless dough twisting device - Google Patents
Contact wire lossless dough twisting device Download PDFInfo
- Publication number
- CN111244813B CN111244813B CN202010046577.1A CN202010046577A CN111244813B CN 111244813 B CN111244813 B CN 111244813B CN 202010046577 A CN202010046577 A CN 202010046577A CN 111244813 B CN111244813 B CN 111244813B
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- Prior art keywords
- contact
- attaching
- contact line
- lossless
- stress
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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
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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Abstract
The invention provides a contact line lossless dough twisting device, comprising: the first attaching body, the second attaching body, the first coating body, the second coating body, the stress body and the grip lever; the first attaching body, the second attaching body, the first coating body, the second coating body and the stress body can be curled into a plane spiral shape with the first attaching body as a starting point; one end of the grip lever is fixedly connected with the stress body. The contact wire lossless dough twisting device wraps the contact wires in an omnibearing manner, and the grip is integrally formed on the contact wires; firstly, the condition that a contact line is stressed at a single point when twisted is not the same as that of the existing twisting device; secondly, when the anti-slip device is used, the torsion is in direct proportion to the grip strength, when the torsion is larger, the grip strength on the contact line is larger, and the situation of excessive force and violent slipping cannot occur; thereby avoiding the occurrence of damage to the contact wire. The contact line lossless dough twist device is fast to install and can be commonly used for four types of contact lines, namely 85 type, 110 type, 120 type and 150 type.
Description
Technical Field
The invention relates to the technical field of dough twisting devices, in particular to a contact wire lossless dough twisting device.
Background
At present, the cross section of a contact line is formed by combining two large and small sectors, the cross section is in an 8 shape, the arc top of the large sector at the lower part of the 8 shape is contacted with a pantograph of an electric locomotive and a motor train unit, and the contact line is called as a working surface of the contact line. The upper small sector of the 8-shaped part is used for mounting contact line parts and is called a non-working surface of a contact line. When the center of the large fan-shaped arc top of the working surface of the contact line deflects or twists with the contact surface of the pantograph, the contact line is called as a twisted surface. After the contact wire twists reverse to reach certain degree, can lead to installing spare part on the contact wire and pantograph to take place to strike, can influence the operating life cycle of contact wire, when the pantograph passes through with the contact wire contact and high speed, can cause harm such as "arcing" abnormal vibrations, leads to the relevant spare part of burnt contact net, reduces the pantograph and draws current quality, finally causes power supply fault. Therefore, when the twisted surface of the contact wire is found in the inspection and detection, the traction power supply department can immediately arrange the correction work of the line surface of the contact wire.
The current twisting device has the forms of single hook, double-groove butt buckle, plum blossom bolt locking and the like, the single hook type contact wire twisting device is mainly adopted for the correction of the contact line surface in China in the last 90 th century, the twisting device is manufactured by adopting a forging process, when the twisting device is used for a certain period and the torque reaches 40N.M, the situations of fatigue and overload cracking can occur at the vertex angle of the single hook, and the twisting device is basically eliminated in the beginning of the 20 th century. The surface twisting device which is self-developed and adopts two full-wrapping contact wires and is locked by a butterfly bolt is also applied in the Kunming railway bureau at the beginning of the 20 th century, and because the butterfly bolt is used for a long time for fatigue and slipping, the surface twisting device can not be shared by 85 type, 110 type, 120 type and 150 type contact wires, the contact wires can be damaged by mixed use, the surface twisting device can be damaged, and the like. The double-groove buckling and the plum bolt locking are mainstream products mainly adopted in national railways at present, and the two products still have the problems of low installation speed and easy damage to the small surface (the upper 8-shaped non-working surface) of the contact line.
Disclosure of Invention
The invention aims to provide a contact wire lossless dough twisting device, which wraps a contact wire in an all-around manner and forms a whole gripping force on the contact wire; firstly, the condition that a contact line is stressed at a single point when twisted is not the same as that of the existing twisting device; secondly, when the anti-slip device is used, the torsion is in direct proportion to the grip strength, when the torsion is larger, the grip strength on the contact line is larger, and the situation of excessive force and violent slipping cannot occur; thereby avoiding the occurrence of damage to the contact wire. The contact line lossless dough twist device is fast to install and can be commonly used for four types of contact lines, namely 85 type, 110 type, 120 type and 150 type.
The embodiment of the invention provides a contact line lossless dough twisting device, which comprises: the first attaching body, the second attaching body, the first coating body, the second coating body, the stress body and the grip lever;
one end of the second attaching body is hinged with one end of the first attaching body, and the other end of the second attaching body is hinged with one end of the first wrapping body;
one end of the second wrapping body is hinged with the other end of the first wrapping body, and the other end of the second wrapping body is hinged with one end of the stress body;
the first attaching body, the second attaching body, the first coating body, the second coating body and the stress body can be curled into a plane spiral shape with the first attaching body as a starting point; when the coil is in a plane spiral shape, the shape of the inner side surface formed by the first attaching body and the second attaching body is adapted to the shape of the section of the contact line;
one end of the grip lever is fixedly connected with the stress body.
Preferably, when the curling is a planar spiral, the hinge position of the first abutment and the second abutment is located above the contact line and on a line of symmetry of the section of the contact line.
Preferably, when the coil is a planar spiral, the first attaching body and the second attaching body form an inner ring of the planar spiral, and the first cladding body, the second cladding body and the force-bearing body form an outer ring of the planar spiral.
Preferably, when the curling is a planar spiral, the inner side surfaces formed by the first coating body, the second coating body and the force-bearing body are attached to the outer side surface formed by the first attaching body and the second attaching body.
Preferably, the grip lever includes: a rod body and a contact body; the contact body is fixedly arranged at one end of the rod body.
Preferably, the shape of one side surface of the contact body, which is far away from the rod body, is matched with the shape of one side surface of the stress body;
both ends of the contact body are fixedly connected with the stress body.
Preferably, the two ends of the contact body are respectively provided with a pin, the stress body is provided with a pin hole at the corresponding position, and the contact body and the stress body are matched with each other through the pin and the pin hole to realize fixed connection.
Preferably, the grip lever further comprises: an arc-shaped reinforcing rib; one end of the arc-shaped reinforcing rib is fixedly connected with the contact body, and the other end of the arc-shaped reinforcing rib is fixedly connected with the rod body.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a contact line lossless twister according to an embodiment of the present invention;
FIG. 2 is a schematic illustration of a cross-section of a contact line in an embodiment of the invention;
fig. 3 is a schematic view of a first lamination body according to an embodiment of the disclosure;
fig. 4 is a schematic view of a second lamination body according to an embodiment of the disclosure;
FIG. 5 is a schematic view of a first cladding body according to an embodiment of the invention;
FIG. 6 is a schematic view of a second cladding body in an embodiment of the invention;
FIG. 7 is a schematic view of a force-bearing body in an embodiment of the invention;
FIG. 8 is an assembled schematic view of the components of FIGS. 2-6;
FIG. 9 is a schematic view of a grip of an embodiment of the present invention.
In the figure:
1. a first bonded body; 2. a second bonded body; 3. a first cladding body; 4. a second cladding body; 5. a force-bearing body; 5-1, pin holes; 6. a grip lever; 6-1, a contact body; 6-2, arc reinforcing ribs; 6-3, a rod body; 7. the cross section of the contact line; 6-11 and pins.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
An embodiment of the present invention provides a contact line lossless dough twist device, as shown in fig. 1 to 7, including: the device comprises a first attaching body 1, a second attaching body 2, a first coating body 3, a second coating body 4, a stress body 5 and a grip lever 6;
one end of the second attaching body 2 is hinged with one end of the first attaching body 1, and the other end is hinged with one end of the first wrapping body 3;
one end of the second coating body 4 is hinged with the other end of the first coating body 3, and the other end of the second coating body is hinged with one end of the stress body 5;
the first attaching body 1, the second attaching body 2, the first covering body 3, the second covering body 4 and the force-bearing body 5 can be curled into a planar spiral shape with the first attaching body 1 as a starting point; when the coil is in a plane spiral shape, the shape of the inner side surface formed by the first laminating body 1 and the second laminating body 2 is adapted to the shape of the section 7 of the contact line;
one end of the grip lever 6 is fixedly connected with the stress body 5.
The working principle and the beneficial effects of the technical scheme are as follows:
when in use, the first attaching body 1 is attached to the surface of the contact line, and the first attaching body 1, the second attaching body 2, the first coating body 3, the second coating body 4 and the stress body 5 are curled by taking the first attaching body 1 as a starting point; the contact line is wholly covered on the inner side formed by the first attaching body 1 and the second attaching body 2; the first attaching body 1 and the second attaching body 2 are attached to the surface of the contact line; the contact wire lossless dough twisting device disclosed by the invention can be used for wrapping the contact wire in all directions and integrally forming grip on the contact wire. When the contact line is twisted by using the grip lever 6, the user's force direction is the direction following the plane spiral formed by the curling, because the plane spiral formed by the winding is unwound against the reverse direction of the plane spiral formed by the winding; this is the method of disassembling the contact wire lossless twister of the present invention. Firstly, as the contact wires are wrapped in all directions, the grip is integrally formed on the contact wires; the condition that a single point is stressed like the existing twisting device is not formed when the contact wire is twisted; secondly, when the device is used, a user applies torsion through the grip lever 6, the torsion pulls the second coating body 4 to move in the direction of the plane spiral through the stress body 5, the first coating body 3 and the second attaching body 2 are sequentially pulled along the plane spiral until the first attaching body 1, and as the first attaching body 1 and the second attaching body 2 are arranged to adapt to the section 7 of the contact line, a bulge is arranged at the position where the first attaching body contacts with a groove symmetrical to the section of the contact line, the bulge is matched with the symmetrical groove on the contact line, so that the first attaching body 1 cannot move in the direction of the plane spiral, and the torsion can enable the plane spiral to shrink, namely, the grip force for the contact line is formed; therefore, the torsion is in direct proportion to the grip strength, when the torsion is larger, the grip strength on the contact line is larger, and the situation of excessive force and slippage cannot occur; thereby avoiding the occurrence of damage to the contact wire. The first attaching body 1, the second attaching body 2, the first coating body 3, the second coating body 4 and the stress body 5 of the contact line lossless twisting device are sequentially curled on a contact line to be installed, and then are unwound along the curling direction in the opposite direction to finish the disassembly of the contact line lossless twisting device, so that the contact line lossless twisting device is installed more quickly than the existing twisting device. The cross sections 7 of the 85 type, 110 type, 120 type and 150 type contact wires are analyzed respectively, the arc lines from the intersection points of the symmetrical lines and the surface to both sides are not obviously changed, the arc lines are respectively cut from the uppermost point to the left and right sides of the cross section of the contact wire, and the positions of the surface grooves of the contact wire are unchanged at the arc lines, so that the shapes of the first attaching body and the second attaching body corresponding to the arc lines are unchanged, and the contact wire lossless twister can be universally used for the four types of contact wires of 85 type, 110 type, 120 type and 150 type.
In one embodiment, when curled in a planar spiral, the hinge position of first body 1 and second body 2 is located above the contact line and on the symmetry line of section 7 of the contact line. When the coil is in a planar spiral shape, the first attaching body 1 and the second attaching body 2 form an inner ring of the planar spiral, and the first coating body 3, the second coating body 4 and the stress body 5 form an outer ring of the planar spiral. When the film is curled to be in a plane spiral shape, the inner side surface formed by the first coating body 3, the second coating body 4 and the stress body 5 is attached to the outer side surface formed by the first attaching body 1 and the second attaching body 2.
The working principle and the beneficial effects of the technical scheme are as follows:
when the contact wire is wound on the outer surface of the contact wire without damaging the dough twisting device, the tight connection among all parts is ensured, and the smooth conversion between one part of the torsion and the grip force is ensured when force is applied.
In one embodiment, as shown in FIG. 9, the grip lever 6 includes: a rod body 6-3 and a contact body 6-1; the contact body 6-1 is fixedly arranged at one end of the rod body 6-3. The shape of one side surface of the contact body 6-1 far away from the rod body 6-3 is adapted to the shape of one side surface of the stress body 5; both ends of the contact body 6-1 are fixedly connected with the stress body 5.
The working principle and the beneficial effects of the technical scheme are as follows:
the user uses the end of the rod body 6-3 far away from the contact body 6-1 to exert force, and the contact surface of the contact body 6-1 and the stress body 5 is jointed with the surface of the stress body 5, so that when part of the torsional force applied to the grip lever 6 is converted into the grip force through the cooperation of all parts covering the contact line.
In one embodiment, the grip lever 6 includes: a rod body 6-3 and a contact body 6-1; the contact body 6-1 is fixedly arranged at one end of the rod body 6-3. Two ends of the contact body 6-1 are respectively provided with a pin 6-11, a pin hole 5-1 is arranged at the corresponding position of the stress body 5, and the contact body 6-1 and the stress body 5 are fixedly connected through the cooperation of the pin 6-11 and the pin hole 5-1.
The working principle and the beneficial effects of the technical scheme are as follows:
the connection between the grip lever 6 and the stress body 5 is designed to be fixedly connected by matching a pin 6-11 with a pin hole 5-1, and further, the pin 6-11 is detachably connected with the contact body 6-1; in order to facilitate the user to pull out the pins 6-11 according to the actual use condition, the grip lever 6 and the stress body 5 are detached, so that the grip lever 6 with the proper length is replaced. When the space used is small, a short grip lever 6 is used, and when a large torque is required, a long grip lever 6 is used. Before the contact wire is installed, the grip lever 6 is detached, and after the contact wire is coated on other parts, the grip lever 6 is installed; the contact wire lossless dough twisting device is more convenient to install.
In one embodiment, as shown in FIG. 9, the grip lever 6 includes: a rod body 6-3 and a contact body 6-1; the contact body 6-1 is fixedly arranged at one end of the rod body 6-3. The grip lever 6 further includes: 6-2 parts of arc reinforcing ribs; one end of the arc-shaped reinforcing rib 6-2 is fixedly connected with the contact body 6-1, and the other end is fixedly connected with the rod body 6-3.
The working principle and the beneficial effects of the technical scheme are as follows:
a triangle is formed among the arc-shaped reinforcing rib 6-2, the contact body 6-1 and the rod body 6-3, so that the structure stability of the grip lever 6 is ensured, and the grip lever 6 can bear larger force.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A contact wire lossless dough twist device, comprising: the device comprises a first attaching body (1), a second attaching body (2), a first coating body (3), a second coating body (4), a stress body (5) and a grip lever (6);
one end of the second attaching body (2) is hinged with one end of the first attaching body (1), and the other end of the second attaching body is hinged with one end of the first wrapping body (3);
one end of the second wrapping body (4) is hinged with the other end of the first wrapping body (3), and the other end of the second wrapping body is hinged with one end of the stress body (5);
the first bonded body (1), the second bonded body (2), the first covering body (3), the second covering body (4) and the force-bearing body (5) can be curled into a planar spiral shape with the first bonded body (1) as a starting point; when the contact line is curled into a plane spiral shape, the shape of the inner side surface formed by the first attaching body (1) and the second attaching body (2) is adapted to the shape of the section (7) of the contact line;
one end of the grip lever (6) is fixedly connected with the stress body (5).
2. The contact line lossless twister of claim 1, wherein the hinge position of said first abutment body (1) and said second abutment body (2) is above said contact line and on the symmetry line of the section (7) of said contact line when curled in a planar spiral.
3. The contact line lossless twister of claim 1, wherein when curled in a planar spiral, said first abutting body (1) and said second abutting body (2) constitute an inner circle of said planar spiral, and said first enveloping body (3), said second enveloping body (4) and said force-bearing body (5) constitute an outer circle of said planar spiral.
4. The contact line lossless twister of claim 3, wherein when curled in a planar spiral, the inner side formed by said first coating body (3), said second coating body (4) and said force-bearing body (5) is attached to the outer side formed by said first attachment body (1) and said second attachment body (2).
5. The contact line lossless facer as claimed in claim 1, wherein said grip lever (6) comprises: a rod body (6-3) and a contact body (6-1); the contact body (6-1) is fixedly arranged at one end of the rod body (6-3).
6. The contact line lossless twister of claim 5, wherein a shape of a side surface of said contact body (6-1) away from said shaft (6-3) is adapted to a shape of a side surface of said force-bearing body (5);
both ends of the contact body (6-1) are fixedly connected with the stress body (5).
7. The contact line lossless torsion device as claimed in claim 5, wherein two ends of the contact body (6-1) are respectively provided with a pin (6-11), a pin hole (5-1) is provided at a corresponding position of the force-bearing body (5), and the contact body (6-1) and the force-bearing body (5) are fixedly connected through the cooperation of the pin (6-11) and the pin hole (5-1).
8. The contact line lossless facer as claimed in claim 5, wherein said grip lever (6) further comprises: the arc-shaped reinforcing ribs (6-2); one end of the arc-shaped reinforcing rib (6-2) is fixedly connected with the contact body (6-1), and the other end of the arc-shaped reinforcing rib is fixedly connected with the rod body (6-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010046577.1A CN111244813B (en) | 2020-01-16 | 2020-01-16 | Contact wire lossless dough twisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010046577.1A CN111244813B (en) | 2020-01-16 | 2020-01-16 | Contact wire lossless dough twisting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111244813A CN111244813A (en) | 2020-06-05 |
| CN111244813B true CN111244813B (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010046577.1A Expired - Fee Related CN111244813B (en) | 2020-01-16 | 2020-01-16 | Contact wire lossless dough twisting device |
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| Country | Link |
|---|---|
| CN (1) | CN111244813B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4867406U (en) * | 1971-12-02 | 1973-08-27 | ||
| CN202534973U (en) * | 2012-04-24 | 2012-11-14 | 中铁电气化局集团有限公司 | Electrification wire surface-twisting device |
| CN102958796A (en) * | 2010-07-07 | 2013-03-06 | 单浮筒系泊公司 | Method for replacing outer annular ring of fluid swivel and fluid swivel |
| CN104924016A (en) * | 2015-06-25 | 2015-09-23 | 贵州安吉航空精密铸造有限责任公司 | Casting correction device |
| CN204992409U (en) * | 2015-06-30 | 2016-01-20 | 北京天泽电力器材有限公司 | Unwrapping wire dolly |
| CN208498291U (en) * | 2018-05-28 | 2019-02-15 | 中车石家庄车辆有限公司 | Bending machine for railway contact line |
-
2020
- 2020-01-16 CN CN202010046577.1A patent/CN111244813B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4867406U (en) * | 1971-12-02 | 1973-08-27 | ||
| CN102958796A (en) * | 2010-07-07 | 2013-03-06 | 单浮筒系泊公司 | Method for replacing outer annular ring of fluid swivel and fluid swivel |
| CN202534973U (en) * | 2012-04-24 | 2012-11-14 | 中铁电气化局集团有限公司 | Electrification wire surface-twisting device |
| CN104924016A (en) * | 2015-06-25 | 2015-09-23 | 贵州安吉航空精密铸造有限责任公司 | Casting correction device |
| CN204992409U (en) * | 2015-06-30 | 2016-01-20 | 北京天泽电力器材有限公司 | Unwrapping wire dolly |
| CN208498291U (en) * | 2018-05-28 | 2019-02-15 | 中车石家庄车辆有限公司 | Bending machine for railway contact line |
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| Publication number | Publication date |
|---|---|
| CN111244813A (en) | 2020-06-05 |
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