CN208367094U - One kind crimping measuring contact resistance special vice with line ear for the big line of locomotive - Google Patents
One kind crimping measuring contact resistance special vice with line ear for the big line of locomotive Download PDFInfo
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- CN208367094U CN208367094U CN201820949171.2U CN201820949171U CN208367094U CN 208367094 U CN208367094 U CN 208367094U CN 201820949171 U CN201820949171 U CN 201820949171U CN 208367094 U CN208367094 U CN 208367094U
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- line
- locomotive
- contact resistance
- tong arm
- big
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Abstract
The utility model discloses one kind to crimp measuring contact resistance special vice with line ear for the big line of locomotive, belong to locomotive inspection and repair equipment technical field, including tong arm, torsional spring and drive-connecting shaft, the quantity of tong arm is 2, 2 tong arms are fixedly connected with torsional spring by drive-connecting shaft, tong arm with a thickness of 1.0~2.5mm, tong arm includes binding clip and clamp handle, sawtooth is provided on the inside of the jaw of binding clip, the at least side of binding clip is coated with insulated paint, at least one binding clip is equipped with wiring hole, the special vice of the utility model can be used for directly clamping the extremely short exposed Cord section after the big line of locomotive is crimped with line ear, it keeps steady calmly to the electrical wire clip deformed after crimping and contact area is big, to the measurement accuracy of contact resistance.
Description
Technical field
The utility model belongs to locomotive inspection and repair equipment technical field, in particular to a kind of to crimp for the big line of locomotive with line ear
Measuring contact resistance special vice.
Background technique
After the big line of locomotive is crimped with line ear, need to survey the contact resistance at crimping using circuit resistance tester
Amount.The length of regulation in iron mark TB 1507-93 " locomotive electric cad system equipment wiring rule ", exposed electric wire is not more than 3mm, and existing
The wire clamp width of circuit resistance tester be then much larger than 3mm, exposed Cord section can not be clamped, directly so as to cause that can not adopt
With the contact resistance at circuit resistance tester measurement crimping.
Utility model content
The utility model is to overcome problems of the prior art, provides a kind of crimp for the big line of locomotive with line ear and connects
Resistance measurement special vice is touched, can be used for directly clamping the extremely short exposed Cord section after the big line of locomotive is crimped with line ear, to pressure
The electrical wire clip deformed after connecing keeps steady calmly and contact area is big, to the measurement accuracy of contact resistance.
The utility model is to solve above-mentioned problems of the prior art, is adopted the following technical scheme that.
One kind crimping measuring contact resistance special vice with line ear for the big line of locomotive, which is characterized in that including tong arm, torsional spring
And drive-connecting shaft, the quantity of the tong arm are 2,2 tong arms are fixedly connected with torsional spring by drive-connecting shaft, the tong arm with a thickness of
1.0~2.5mm, the tong arm include binding clip and clamp handle, are provided with sawtooth on the inside of the jaw of the binding clip, the binding clip is at least
Side is coated with insulated paint, at least one binding clip is equipped with wiring hole.
Further, the tong arm is red copper material.
Further, the drive-connecting shaft is aluminum rivet.
Further, conductive paste is coated with outside the drive-connecting shaft.
Further, the insulated paint with a thickness of 0.2~0.5mm.
Further, the sawtooth is stepped tooth.
Compared with the existing technology, the utility model achieve it is following the utility model has the advantages that
1, the special vice of the utility model can be used for directly clamping the big line of locomotive instead of the wire clamp of circuit resistance tester
Extremely short exposed Cord section after crimping with line ear, the sawtooth that jaw inside is arranged, keeps steady to the electrical wire clip deformed after crimping
Fixed and contact area is big, to the measurement accuracy of contact resistance.
2, the special vice of the utility model, tong arm are formed using red copper material integral production, are conducted electricity very well.
3, the special vice of the utility model, the sawtooth that jaw inside is arranged is stepped tooth, and the contact surface with exposed electric wire is
Facet can substantially reduce the contact resistance between special vice and exposed electric wire, can further improve measurement accuracy.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the special vice of the utility model.
In figure: 1, tong arm；11, binding clip；12, clamp handle；13, jaw, 14, sawtooth；2, torsional spring；3, drive-connecting shaft；4, wiring hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, the technical solution in embodiment is carried out it is clear, complete
Ground description.Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, institute obtained by those of ordinary skill in the art without making creative efforts
There are other embodiments, fall within the protection scope of the utility model.
As shown in Figure 1, a kind of crimp measuring contact resistance special vice, including tong arm 1, torsional spring with line ear for the big line of locomotive
2 and drive-connecting shaft 3, the quantity of tong arm 1 is 2, and 2 tong arms 1 pass through drive-connecting shaft 3 with torsional spring 2 and are fixedly connected.When normal condition, 2
11 occlusal contact condition of binding clip of tong arm 1 is together.
Tong arm 1 is made into integration by the fabulous red copper material of electric conductivity, with a thickness of 1.0~2.5mm.
Tong arm 1 includes the binding clip 11 for clamping electric wire and the clamp handle 12 for holding, and is set on the inside of the jaw 13 of binding clip 11
It is equipped with sawtooth 14, the electrical wire clips deformed after 14 pairs of sawtooth crimping keep steady calmly and contact area is big, to the measurement accuracy of contact resistance.
At least side (by the side of near line ear when clamping electric wire) of binding clip 11 is coated with insulated paint, and insulated paint is used for will be dedicated
Pincers are disconnected with the insulation of line ear, are prevented special vice to be connected with line ear and are led to measuring error.At least one binding clip 11 is equipped with wiring
Hole 4.
In use, U+, I+ of circuit resistance tester are connected with the wiring hole 4 of special vice by lead, by special vice
It is clamped in the big line of locomotive to crimp at the exposed electric wire at place with line ear, it is good with whether hand touch contacts, it is required to when using every time
Whether the insulated paint observed on binding clip 11 is good, and U+, I+ of circuit resistance tester are carried by circuit resistance tester
Wire clamp clamps line ear, so that it may measure to contact resistance.
Preferred scheme, drive-connecting shaft 3 are aluminum rivet, are not only conducted electricity very well, but also higher compared to its intensity of red copper.
Preferred scheme, drive-connecting shaft 3 are coated with conductive paste outside, and conductive paste can reduce the contact resistance at drive-connecting shaft 3, improve
Measurement accuracy.
Preferred scheme, insulated paint with a thickness of 0.2~0.5mm.
Preferred scheme, sawtooth 14 are stepped tooth, and the contact surface of stepped tooth and exposed electric wire is facet, can be substantially reduced
Contact resistance between special vice and exposed electric wire, can further improve measurement accuracy.
The special vice of the utility model can be used for directly clamping the extremely short exposed electric wire after the big line of locomotive is crimped with line ear
Part keeps steady calmly to the electrical wire clip deformed after crimping and contact area is big, to the measurement accuracy of contact resistance.
Content described in this specification embodiment is only an enumeration of the implementation forms of the utility model concept, this is practical new
The protection scope of type should not be construed as being limited to the specific forms stated in the embodiments, the protection scope of the utility model also and
In those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (6)
1. one kind crimps measuring contact resistance special vice with line ear for the big line of locomotive, it is characterised in that: including tong arm (1), turn round
Spring (2) and drive-connecting shaft (3), the quantity of the tong arm (1) are 2, and 2 tong arms (1) and torsional spring (2) are fixed by drive-connecting shaft (3)
Connection, the tong arm (1) with a thickness of 1.0~2.5mm, the tong arm (1) includes binding clip (11) and clamp handle (12), the binding clip
(11) it is provided with sawtooth (14) on the inside of jaw (13), at least side of the binding clip (11) is coated with insulated paint, at least one pincers
Head (11) is equipped with wiring hole (4).
2. one kind according to claim 1 crimps measuring contact resistance special vice, feature with line ear for the big line of locomotive
Be: the tong arm (1) is red copper material.
3. one kind according to claim 1 crimps measuring contact resistance special vice, feature with line ear for the big line of locomotive
Be: the drive-connecting shaft (3) is aluminum rivet.
4. one kind according to claim 3 crimps measuring contact resistance special vice, feature with line ear for the big line of locomotive
It is: is coated with conductive paste outside the drive-connecting shaft (3).
5. one kind according to claim 1 crimps measuring contact resistance special vice, feature with line ear for the big line of locomotive
Be: the insulated paint with a thickness of 0.2~0.5mm.
6. described in any item according to claim 1~5, a kind of for the big line of locomotive to crimp measuring contact resistance with line ear dedicated
Pincers, it is characterised in that: the sawtooth (14) is stepped tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820949171.2U CN208367094U (en) | 2018-06-20 | 2018-06-20 | One kind crimping measuring contact resistance special vice with line ear for the big line of locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820949171.2U CN208367094U (en) | 2018-06-20 | 2018-06-20 | One kind crimping measuring contact resistance special vice with line ear for the big line of locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208367094U true CN208367094U (en) | 2019-01-11 |
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ID=64929685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820949171.2U Active CN208367094U (en) | 2018-06-20 | 2018-06-20 | One kind crimping measuring contact resistance special vice with line ear for the big line of locomotive |
Country Status (1)
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|---|---|
| CN (1) | CN208367094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884577A (en) * | 2019-04-09 | 2019-06-14 | 广东电网有限责任公司 | A kind of dedicated tooth of Ammeter Test instrument stings testing clamp |
-
2018
- 2018-06-20 CN CN201820949171.2U patent/CN208367094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884577A (en) * | 2019-04-09 | 2019-06-14 | 广东电网有限责任公司 | A kind of dedicated tooth of Ammeter Test instrument stings testing clamp |
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