CN209626823U - A kind of bending tool of magnesia cable scene laying - Google Patents
A kind of bending tool of magnesia cable scene laying Download PDFInfo
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- CN209626823U CN209626823U CN201920393168.1U CN201920393168U CN209626823U CN 209626823 U CN209626823 U CN 209626823U CN 201920393168 U CN201920393168 U CN 201920393168U CN 209626823 U CN209626823 U CN 209626823U
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- cable
- sleeve
- screw thread
- magnesia
- mandril
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Abstract
The utility model discloses a kind of bending tools of magnesia cable scene laying, belong to electromechanical mounting technique field.The bending tool includes Y-shaped rod piece, screw thread pushing ram and cable correction head, wherein Y-shaped rod piece includes a sleeve and two struts that sleeve one end is arranged in, one end of sleeve is provided with internal screw thread, several roller bearings for fixing cable are respectively arranged on two struts；Screw thread pushing ram one end is protruded into sleeve, and the other end is provided with handle；Cable correction head includes that the idler wheel of fixed cable and a mandril, one end of mandril are fixedly connected with idler wheel, and the other end is protruded into sleeve and connect with the end thereof contacts of screw thread pushing ram.It is the bending tool simple structure, easy to operate, flexible adjustment, low in cost, it can be applied to the magnesia cable correction in small space, the copper sheathing of magnesia cable avoided to damage, and the preferably whole perception of magnesia cable after laying.
Description
Technical field
The utility model relates to electromechanical mounting technique fields, the in particular to a kind of bender of magnesia cable scene laying
Tool.
Background technique
Magnesia cable due to its fire prevention, explosion-proof, high temperature resistant, do not burn, and outer diameter is small, current-carrying capacity is big, high mechanical strength,
The advantages of long service life, has obtained extensive in skyscraper, airport, harbour, underground, chemical plant, nuclear power station and mine
With.
Magnesia cable is usually that outer layer uses seamless copper pipe sheath, intermediate filling magnesia crystal powder to make insulating materials,
And built-in copper rod is as conductor.Magnesia cable is fixed by cable testing bridge, with the raising of space utilization rate, is commonly encountered narrow
The cable laying operation of space inner cable, when needing to curve construction especially for small space internal oxidition magnesium cable, difficulty of construction compared with
Greatly, low precision, traditional operating method are after stretch bending is straightened in cable by hand, and benefit hits with a hammer to correct, and is finally bundled in
On gantry, this construction method is difficult for the bent angle of cable to be pulled to unified radian, and traditional correcting mode often will appear
Cable copper sheathing caused by due to undue force is damaged, so that a possibility that increasing the dampness of cable, directly affects the use of cable.
In existing patent, application No. is the patents of 201410703328.X to disclose a kind of Simple pipe bender, can be by oxygen
Change magnesium cable and be pulled to certain radian, but this bending machine is due to pipeline mechanism, two power devices and a heater, because
This occupies certain volume, the small space being not used between gantry and ceiling；In addition, having added heating in bending machine
Device is conducive to protect cable and convenient for molding, the copper sheathing after heating is also increased though improving the plasticity of copper sheathing in bend pipe
A possibility that scalding worker.
In conclusion urgent need provides a kind of suitable for small space internal oxidition magnesium cable at present in electromechanics installation industry
Bend Special tool for correcting.
Utility model content
The utility model provides a kind of bending tool of magnesia cable scene laying, which has construction letter
The advantages that list, flexible adjustment, applied widely, strong operability and occupancy small in size.
In order to solve the above technical problems, the utility model includes following technical solution:
A kind of bending tool of magnesia cable scene laying, comprising:
Y-shaped rod piece, including a sleeve and two struts that sleeve one end is arranged in, one end of sleeve is provided with interior spiral shell
Line is respectively arranged with several roller bearings for fixing cables on two struts；
Screw thread pushing ram, is provided with the external screw thread to match with the internal screw thread of the sleeve, and one end of screw thread pushing ram is stretched
Enter in sleeve, the other end is provided with the handle for rotating screw thread pushing ram；
Cable correction head, idler wheel and a mandril including fixed cable, idler wheel are fixed on one end of mandril, mandril it is another
One end is protruded into sleeve and is connect with the end thereof contacts of screw thread pushing ram.
Further, sleeve is rectangular steel pipe, and one end of sleeve is welded with nut, and screw thread connects between screw thread pushing ram and nut
It connects, the cross section of mandril is rectangle and matches with the interior section of sleeve that rectangle mandril can move in sleeve.
Further, sleeve is round steel pipe, and one end of sleeve is welded with nut, and screw thread connects between screw thread pushing ram and nut
It connects, strip groove along its length is provided on sleeve, pin hole is provided on mandril, mandril is fixed in strip groove by pin shaft
And it can be moved along strip groove direction.
Further, the radius of idler wheel and the radius that curves of magnesia cable match.
Further, it is arranged fluted on idler wheel, is provided with rubber sheet gasket in groove, groove is arc-shaped, the radius of circular arc
Match with the radius of magnesia cable.
Further, the roller bearing be rubber material, the both ends for curving position of magnesia cable pass through respectively two it is adjacent
Roller bearing buckle.
Further, the spacing on strut between outermost two roller bearings is adjustable.
Further, the notch for being fixed temporarily is provided on the strut.
The utility model due to using the technology described above, is allowed to compared with prior art, have the following advantages that and accumulate
Pole effect: the bending tool makes magnesia cable curve position and is against idler wheel by the fixed cable of roller bearing on two struts
On, then rotating handle, moves screw thread pushing ram in sleeve and withstands mandril, so that idler wheel is held out against magnesia cable and makes oxygen
Change magnesium cable to curve, until the angle that curves of magnesia cable is met the requirements.The bending tool simple structure, it is easy to operate,
It is flexible adjustment, low in cost, it can be applied to the magnesia cable correction in small space, can avoid the copper sheathing damage of magnesia cable
It is bad, and the preferably whole perception of the magnesia cable after laying.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the bending tool of the magnesia cable scene laying in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the Y-shaped rod piece in an embodiment of the present invention；
Fig. 3 is the cross-sectional view of the bending tool for the magnesia cable scene laying that an embodiment of the present invention provides；
Fig. 4 is the structural schematic diagram for the Y-shaped rod piece that another embodiment of the utility model provides；
Fig. 5 is the structural schematic diagram for the cable correction head that another embodiment of the utility model provides.
Figure label is as follows:
1- cable；10-Y font rod piece；11- sleeve；12- strut；13- roller bearing；14- nut；15- strip groove；16- slot
Mouthful；20- screw thread pushing ram；21- handle；30- cable correction head；31- idler wheel；32- mandril；33- pin shaft.
Specific embodiment
The folding that a kind of magnesia cable scene provided by the utility model is laid below in conjunction with the drawings and specific embodiments
Curved tool is described in further detail.In conjunction with following explanation, will be become apparent from feature the advantages of the utility model.It should be noted
It is that attached drawing is all made of very simplified form and using non-accurate ratio, only to facilitate, lucidly aid in illustrating this reality
With the purpose of new embodiment.
Embodiment one
The bending tool of magnesia cable provided in this embodiment scene laying, below with reference to Fig. 1 to Fig. 5 to the bender
Tool is further described.
As shown in Figure 1, the bending tool of magnesia cable provided in this embodiment scene laying, including Y-shaped rod piece 10,
Screw thread pushing ram 20 and cable correction head 30.Referring to figs. 1 and 2, Y-shaped rod piece 10 includes that a sleeve 11 and setting exist
Two struts 12 of 11 one end of sleeve, one end of sleeve 11 are provided with internal screw thread, are respectively arranged with several on two struts 12
The roller bearing 13 of fixed cable 1.The external screw thread to match with the internal screw thread of sleeve 11 is provided on screw thread pushing ram 20, screw thread promotes
One end of bar 20 is protruded into sleeve 11, and the other end is provided with the handle 21 for rotating screw thread pushing ram 20.Cable correction head 30
Idler wheel 31 and a mandril 32 including fixed cable 1, idler wheel 31 are fixed on one end of mandril 32, and the other end of mandril 32 protrudes into
It is connect in sleeve 11 with the end thereof contacts of screw thread pushing ram 20.So-called contact connectio refers to that the two is only in contact, and mandril 32 is unlimited
The rotation of screw thread pushing ram 20 processed.
The bending tool of magnesia cable provided in this embodiment scene laying, cable 1 pass through the rolling on two struts 12
Axis 13 is fixed, so that magnesia cable 1 is curved position and is against on idler wheel 31, then rotating handle 21, are covering screw thread pushing ram 20
Mandril 32 is moved and withstood in cylinder, so that idler wheel 31 is held out against magnesia cable 1 and curves magnesia cable 1, until magnesia electricity
The angle that curves of cable 1 is met the requirements.It is the bending tool simple structure, easy to operate, flexible adjustment, low in cost, it can apply
In the magnesia cable correction in small space, the copper sheathing damage of magnesia cable, and the magnesia cable after laying can avoid
Preferable entirety perception.
Preferred embodiment is, as shown in figure 3, sleeve 11 is rectangular steel pipe, one end of sleeve 11 is welded with nut 14,
It is threadedly coupled between screw thread pushing ram 20 and nut 14, the cross section of mandril 32 is rectangle and the interior section phase with sleeve 11
Match, rectangle mandril 32 can move in sleeve 11.Mandril 32 and sleeve 11 are both designed as rectangle, can prevent screw thread pushing ram 20
It drives mandril 32 to rotate in rotation, magnesia cable is avoided to twist during curving.Certainly, mandril 32 and sleeve 11 be also
It may be designed as the ellipse to match, regular polygon or anisotropic approach, can equally play prevents magnesia cable during curving
The effect to twist.The present embodiment provides internal screw thread using nut 14, thus realize sleeve 11 and screw thread pushing ram 20 it
Between threaded connection on the basis of, simplify sleeve 11 structure, reduce cost, certainly, nut 14 can also be embedded in sleeve 11
It is interior, same effect can be fully achieved.
Preferred embodiment is, in conjunction with shown in Fig. 4 and Fig. 5, sleeve 11 is round steel pipe, and one end of sleeve 11 is welded with
Nut 14 is threadedly coupled between screw thread pushing ram 20 and nut 14, and strip groove 15 along its length is provided on sleeve 11, top
Pin hole is provided on bar 32, mandril 32 is fixed in strip groove 15 and can be moved along 15 direction of strip groove by pin shaft 33.It is covering
When cylinder 11 is round steel pipe, mandril 32 is round rod piece, the rotation of screw thread pushing ram 20 applies rotation torque to mandril 32, to avoid
Mandril rotation, so that strip groove 15 be arranged on sleeve 11, limitation mandril 32 moves in strip groove 15, prevents screw thread pushing ram
It drives mandril 32 to rotate in 20 rotations, magnesia cable 1 is avoided to twist during curving.
In order to guarantee the effect that curves of magnesia cable, not only to guarantee the angle that curves of magnesia cable, also should ensure that
Magnesia cable curves radius, and preferred embodiment is that the radius of idler wheel matches with the radius that curves of magnesia cable.
In order to guarantee that magnesia cable has preferable fixed effect on idler wheel, it is arranged on idler wheel fluted, rubber is provided in groove
Glue gasket, groove be it is arc-shaped, the radius of the radius and magnesia cable of circular arc matches, so that reaching good curves effect
Fruit.
Preferred embodiment is that the roller bearing 13 in Fig. 1 is rubber material, the both ends for curving position of magnesia cable 1
It is buckled respectively by two adjacent roller bearings 13, during magnesia cable 1 curves, pushing tow of the cable 1 by idler wheel 31
Power, roller bearing 13 can be rotated under 1 pulling force effect of magnesia cable, make to form rolling friction between roller bearing and magnesia cable, drop
Low-frictional force, and prevent magnesia cable surface damaged under a stretching force, it is preferably curved so that magnesia cable be made to reach
Effect.
Preferred embodiment is as depicted in figs. 1 and 2, the notch for being fixed temporarily to be provided on the strut 12
16, bending tool and cable testing bridge can be fixed temporarily by notch 16.
Preferred embodiment is the adjustable setting of the spacing on strut 12 between outermost two roller bearings 13, as
It illustrates, is provided with strip groove on strut 12, is placed on strut 12 between outermost two roller bearings 13 in magnesia cable 1
Afterwards, position and fixation of the outermost roller bearing 13 in strip groove are adjusted, to make oxygen of the bending tool suitable for different-diameter
Change magnesium cable.
Embodiment two
The bending method for present embodiments providing a kind of small space magnesia cable 1, utilizes the folding provided in embodiment 1
Curved tool is corrected the position that curves of magnesia cable, further retouches below with reference to Fig. 1 to Fig. 5 to the bending method
It states.The bending method includes the following steps:
Magnesia cable 1 is laid on cable testing bridge by step 1, according to the radius that curves of magnesia cable 1, selection tool
There is the cable correction head 30 for the idler wheel 31 that matches, the mandril 32 of cable correction head 30 be inserted into the sleeve 11 of Y-shaped rod piece 10,
Y-shaped rod piece 10 is fixed on the cable testing bridge for curving position of magnesia cable 1.Utilize the strut 12 of Y-shaped rod piece 10
On notch 16 be fixed, as an example, the connector that is buckled on notch can be used Y-shaped rod piece 10 is fixed.
Magnesia cable 1 is curved portion two sides and is fixed by the roller bearing 13 of Y-shaped rod piece 10, by cable correction by step 2
What first 30 idler wheel 31 was against magnesia cable 1 curves portion.4 roller bearings 13 are set on each strut 12 in Fig. 2, and there are three rollings
Shaft position is fixed, and outermost roller positions are adjustable, as an example, strip groove is provided on strut 12, in magnesia cable 1
After being placed on strut 12 between outermost two roller bearings 13, position of the roller bearing of outermost roller bearing 13 in strip groove is adjusted
It sets and fixes, to make magnesia cable of the bending tool suitable for different-diameter.
Step 3, rotational handle 21 make screw thread pushing ram 20 push mandril 32 mobile, so that idler wheel 31 be made to push magnesia
Cable 1 is mobile.
Step 4, until reversely rotating handle 21 when the angle for curving portion of magnesia cable 1 reaches predetermined value, making idler wheel
Release between 31 and magnesia cable 1 separates magnesia cable 1 with roller bearing 13, removes bending tool.
When being arranged side by side on cable testing bridge there are more magnesia cables, above step is repeated, all magnesia are completed
Cable curves position construction, and the advance distance of mandril is controlled in construction, to control the angle that curves of magnesia cable
Deviation.For example, mandril can realize stretching in 0~300mm distance, to correct the different cables for curving angle, it is equipped with 6 types
Number different cable correction head, the radius of the idler wheel of cable correction head curve radius from different magnesia respectively and match, existing
Field can select the cable correction head of corresponding model be corrected according to construction drawing.
As an example, in certain super high-rise building, the magnesia cable in low area's mechanical floor at the top of cable testing bridge due to applying
Work space only has 22cm or so, and magnesia cable curves place, magnesia after using traditional construction system of laying installation, at certain
The diameter of cable is 2.4cm, corner is 120 °, and five in cable testing bridge are with model and move towards identical magnesia cable each
Corner radian is different, differs about ± 8 ° or so with the angle of drawing requirement substantially, simultaneously because cable testing bridge lacks coating,
So that cable is directly exposed in sight after laying, perception is significantly impacted, therefore need to be corrected to it.The utility model
Bender's bending tool of offer only takes up the space of 8cm, and the 14cm reserved is conducive to correction operation.Oxidation after correction
The well-tended appearance of magnesium cable and neat, beauty of arranging, have reached the calibration result that magnesia cable curves position.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (8)
1. a kind of bending tool of magnesia cable scene laying characterized by comprising
Y-shaped rod piece, including a sleeve and two struts that sleeve one end is arranged in, one end of sleeve is provided with internal screw thread,
Several roller bearings for fixing cable are respectively arranged on two struts；
Screw thread pushing ram, is provided with the external screw thread to match with the internal screw thread of the sleeve, and set is protruded into one end of screw thread pushing ram
In cylinder, the other end is provided with the handle for rotating screw thread pushing ram；
Cable correction head, idler wheel and a mandril including fixed cable, idler wheel are fixed on one end of mandril, the other end of mandril
It protrudes into sleeve and is connect with the end thereof contacts of screw thread pushing ram.
2. bending tool as described in claim 1, which is characterized in that
Sleeve is rectangular steel pipe, and one end of sleeve is welded with nut, is threadedly coupled between screw thread pushing ram and nut, the cross of mandril
Section is rectangle and matches with the interior section of sleeve that rectangle mandril can move in sleeve.
3. bending tool as described in claim 1, which is characterized in that
Sleeve is round steel pipe, and one end of sleeve is welded with nut, is threadedly coupled between screw thread pushing ram and nut, sets on sleeve
It is equipped with strip groove along its length, pin hole is provided on mandril, mandril is fixed in strip groove by pin shaft and can be along bar shaped
Slot direction is mobile.
4. bending tool as described in claim 1, which is characterized in that the radius of idler wheel curves radius phase with magnesia cable
Matching.
5. bending tool as described in claim 1, which is characterized in that
It is arranged fluted on idler wheel, is provided with rubber sheet gasket in groove, groove is arc-shaped, the radius and magnesia cable of circular arc
Radius match.
6. bending tool as described in claim 1, which is characterized in that
The roller bearing is rubber material, and the both ends for curving position of magnesia cable pass through two adjacent roller bearings respectively and buckle.
7. bending tool as described in claim 1, which is characterized in that the spacing on strut between outermost two roller bearings can
It adjusts.
8. bending tool as described in claim 1, which is characterized in that be provided with the slot for being fixed temporarily on the strut
Mouthful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920393168.1U CN209626823U (en) | 2019-03-26 | 2019-03-26 | A kind of bending tool of magnesia cable scene laying |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920393168.1U CN209626823U (en) | 2019-03-26 | 2019-03-26 | A kind of bending tool of magnesia cable scene laying |
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| CN209626823U true CN209626823U (en) | 2019-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921336A (en) * | 2019-03-26 | 2019-06-21 | 上海市安装工程集团有限公司 | The bending tool and method of a kind of magnesia cable scene laying |
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2019
- 2019-03-26 CN CN201920393168.1U patent/CN209626823U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109921336A (en) * | 2019-03-26 | 2019-06-21 | 上海市安装工程集团有限公司 | The bending tool and method of a kind of magnesia cable scene laying |
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