CN111697353A - Tool for testing electrical performance of cable intermediate joint - Google Patents
Tool for testing electrical performance of cable intermediate joint Download PDFInfo
- Publication number
- CN111697353A CN111697353A CN202010579052.4A CN202010579052A CN111697353A CN 111697353 A CN111697353 A CN 111697353A CN 202010579052 A CN202010579052 A CN 202010579052A CN 111697353 A CN111697353 A CN 111697353A
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- fan
- pipe fitting
- shaped
- elastic shrinkage
- assembly
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 239000002184 metal Substances 0.000 claims abstract description 27
- 230000033001 locomotion Effects 0.000 claims abstract description 24
- 230000008602 contraction Effects 0.000 claims description 20
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 210000001503 joint Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/10—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation
- H01R4/18—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping
- H01R4/20—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation effected solely by twisting, wrapping, bending, crimping, or other permanent deformation by crimping using a crimping sleeve
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/01—Subjecting similar articles in turn to test, e.g. "go/no-go" tests in mass production; Testing objects at points as they pass through a testing station
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/60—Connections between or with tubular conductors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The invention discloses a tool for testing the electrical performance of a cable intermediate joint, which comprises a wiring metal pipe, an elastic shrinkage pipe fitting and a hole expansion assembly, wherein the elastic shrinkage pipe fitting is sleeved on the wiring metal pipe; the reaming assembly comprises a plurality of first fan-shaped reaming plates nested in the elastic shrinkage pipe fitting, the number of the first fan-shaped reaming plates is an even number, the two ends of each first fan-shaped reaming plate are hinged with diameter increasing fan plates, the diameter increasing fan plates are connected through a hinge body, and the outer end face of the hinge body is hinged with a first radial motion rod used for driving the hinge body. The diameter of the elastic shrinkage pipe fitting is widened through the reaming component, so that a test circuit is conveniently connected in series in the cable intermediate joint, and the difficulty in inserting and connecting the test circuit is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of testing tools, in particular to a tool for testing the electrical performance of a cable intermediate joint.
Background
In the process of laying power cable transmission lines, power cables are required to be connected through cable intermediate connectors due to the fact that the manufacturing lengths of the power cables are limited. The intermediate cable connector generally includes a metal connection tube and an elastically contractible tube member for fitting over the metal connection tube. The wiring metal tube is used for sleeving two cables, the clamping device is used for extruding the wiring metal tube and enabling the wiring metal tube to deform so as to enable the wiring metal tube to be fixed with the cables, the elastic shrinkage pipe fitting is sleeved at last to wrap the interface, and the elastic shrinkage pipe fitting is bound and fixed on the interface due to the self-contractibility. The quality of the cable intermediate joint is critical to the circuit installation. It needs to be sample tested on the production line.
However, the elastic shrinkage pipe fitting is generally made of silica gel, the material is soft, the elasticity is strong, the initial state is in a shrinkage state, and the end of the cable needs to be inserted into the elastic shrinkage pipe fitting under the state of a longer part, so that the elastic shrinkage pipe fitting is difficult to mount. In order to solve the problem, a conventional method is to lubricate the middle joint by using a lubricant such as silicone grease, but after the test is finished, the lubricant residue on the inner wall of the middle joint needs to be manually pressed and wiped by using a solvent such as alcohol, so that time and labor are wasted, carbon black on the inner electrode is very easily caused to fall off due to friction and adhere to an insulating layer on the outer side of a cable core, and finally the whole middle joint is easily broken down by high voltage. In the prior art, a scheme of inflating the inside of the elastic shrinkage pipe fitting to expand the elastic shrinkage pipe fitting is also provided, so that when the cable is inserted, an air cavity formed by the elastic shrinkage pipe fitting can be compressed, the air pressure is increased, the resistance of the insertion is generated, and the elastic shrinkage pipe fitting is broken when the cable is serious.
Disclosure of Invention
Therefore, the embodiment of the invention provides a tool for testing the electrical performance of a cable intermediate joint, which is used for solving the problem that the cable end needs to be inserted into an elastic shrinkage pipe fitting with a smaller inner diameter from a longer part in the prior art, so that the cable end is difficult to mount.
In order to achieve the above object, an embodiment of the present invention provides the following:
a tool for testing the electrical performance of a cable intermediate joint comprises a wiring metal pipe and an elastic shrinkage pipe fitting sleeved on the wiring metal pipe, wherein a hole expansion assembly used for expanding the inner diameter of the elastic shrinkage pipe fitting is nested at one end of the elastic shrinkage pipe fitting;
the hole expansion assembly comprises a plurality of first fan-shaped hole expansion plates nested in the elastic contraction pipe fitting, and the number of the first fan-shaped hole expansion plates is even; one side, away from the inner wall of the elastic contraction pipe fitting, of the first fan-shaped orifice plate is hinged with a diameter increasing assembly, and the diameter increasing assembly comprises two diameter increasing fan plates which are arranged in a mirror symmetry mode;
the adjacent diameter increasing assemblies are connected through a hinge body, the hinge body faces to the outer end face of the inner wall of the elastic contraction pipe fitting, and a first radial moving rod used for driving the hinge body to move along the radial direction of the elastic contraction pipe fitting is hinged to the outer end face of the inner wall of the elastic contraction pipe fitting.
Optionally, the other end of the elastic shrinkage pipe fitting is nested with a counteracting assembly, and the counteracting assembly is used for counteracting a friction force generated when the reaming assembly is drawn out of the elastic shrinkage pipe fitting;
the offset assembly comprises a fan-shaped connecting piece which is arranged at the other end of the elastic shrinkage pipe fitting and is opposite to the first fan-shaped orifice plate, a mirror image assembly is hinged to one side, away from the inner wall of the elastic shrinkage pipe fitting, of the fan-shaped connecting piece, the mirror image assembly comprises two mirror image diameter plates which are arranged in a mirror image symmetry mode, and a second fan-shaped orifice plate is connected between every two adjacent mirror image assemblies;
the outer end face, facing the inner wall of the elastic contraction pipe fitting, of the second fan-shaped orifice plate is hinged with a second radial moving rod used for driving the second fan-shaped orifice plate to move along the radial direction of the elastic contraction pipe fitting.
Optionally, the first fan-shaped orifice plate and the second fan-shaped orifice plate have the same shape and the same friction coefficient of the surfaces thereof.
Optionally, one end of the first fan-shaped hole expansion plate, which is far away from the diameter increasing assembly, is clamped on the fan-shaped connecting piece through a first clamping groove;
one end, far away from the mirror image assembly, of the second fan-shaped hole expansion plate is connected to the hinge body in a clamping mode through a second clamping groove.
Optionally, the length of the second fan-shaped orifice plate and the length of the first fan-shaped orifice plate are equal to the length of the elastic contraction pipe fitting.
Optionally, two ends of the elastic shrinkage pipe fitting are sleeved with annular mounting plates;
said first radially movable rod being slidably mounted on one of said annular mounting plates and said second radially movable rod being slidably mounted on the other of said annular mounting plates;
the first radial motion rod and the second radial motion rod are sleeved with driving springs, one ends of the driving springs are respectively connected with the first radial motion rod or the second radial motion rod, and the other ends of the driving springs are connected with the annular mounting plate;
the annular mounting plate is rotatably provided with a rotary driving annular plate for driving the first radial motion rod and the second radial motion rod to move radially;
the rotary driving ring plate is provided with a plurality of slope-shaped clamping grooves, each slope-shaped clamping groove on one annular mounting plate corresponds to the position of each first radial moving rod one by one, and each slope-shaped clamping groove on the other annular mounting plate corresponds to the position of each second radial moving rod one by one.
Optionally, the first fan-shaped orifice plate and the fan-shaped connecting piece are both provided with a limiting rotating piece.
The embodiment of the invention has the following advantages:
the diameter of the elastic shrinkage pipe fitting is widened through the hole enlarging component, so that a test circuit can be conveniently connected in series in the cable intermediate joint, the difficulty of inserting and connecting the test circuit is reduced, the elastic shrinkage pipe fitting widened through the hole enlarging component can be manually and directly sleeved on the test circuit, the hole enlarging component is simultaneously drawn out to the left side, the offsetting component is drawn out to the right side, and the friction force drawn out of the hole enlarging component and the offsetting component is exactly offset one to one through the arrangement of similar structures of the hole enlarging component and the offsetting component, so that the elastic shrinkage pipe fitting can be shrunk and bound on the wiring metal pipe from the middle to the two sides, and the position of the elastic shrinkage pipe fitting is kept unchanged, so that the installation accuracy of the cable intermediate joint is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is an overall block diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a reaming assembly according to an embodiment of the invention;
fig. 3 is a schematic structural diagram of a cancellation assembly in an embodiment of the invention.
In the figure:
1-wiring a metal tube; 2-elastically contracting the tube; 3-a reaming assembly; 4-a counter element; 5-a ring-shaped mounting plate; 6-a drive spring; 7-rotating the drive ring plate; 8-slope-shaped clamping grooves; 9-a limit rotating sheet;
31-first fan-shaped reaming; 32-diameter increasing sector plate; 33-a hinge body; 34-a first radially moving rod; 35-a first card slot;
41-fan shaped connectors; 42-mirror diameter plate; 43-a second fan-shaped orifice plate; 44-a second radially moving rod; 45-second card slot.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 and 2, the invention provides a tool for testing electrical performance of a cable intermediate joint, which comprises a wiring metal tube 1 and an elastic shrinkage tube 2 sleeved on the wiring metal tube 1, wherein a hole expansion assembly 3 for expanding the inner diameter of the elastic shrinkage tube 2 is nested at one end of the elastic shrinkage tube 2;
the reaming assembly 3 comprises a plurality of first fan-shaped reaming plates 31 nested in the elastic shrinkage pipe fitting 2, and the number of the first fan-shaped reaming plates 31 is even; one side of the first fan-shaped orifice plate 31, which is far away from the inner wall of the elastic contraction pipe fitting 2, is hinged with a diameter increasing assembly, and the diameter increasing assembly comprises two diameter increasing fan plates 32 which are arranged in a mirror symmetry manner;
the adjacent diameter-increasing assemblies are connected through a hinge body 33, and a first radial moving rod 34 for driving the hinge body 33 to move along the radial direction of the elastically contracted pipe 2 is hinged on the outer end face of the hinge body 33 facing the inner wall of the elastically contracted pipe 2.
The installation process of this device does: an elastic shrinkage pipe fitting 2 and a wiring metal pipe 1 are respectively taken on a production line, because the elastic shrinkage pipe fitting 2 is a cold shrinkage pipe, the inner diameter is smaller under the initial state and is difficult to be sleeved on a test cable, the inner diameter of the elastic shrinkage pipe fitting 2 is expanded through a hole expanding component 3, the elastic shrinkage pipe fitting 2 is conveniently and manually sleeved on a cable on one side, then the wiring metal pipe 1 is sleeved on the test cable, firstly, the wiring metal pipe 1 is moved to the connection position of two cables, the end part of the wiring metal pipe 1 is deformed through a pressing clamp, so that the wiring metal pipe 1 is connected with cable joints on two sides to form a loop, then the elastic shrinkage pipe fitting 2 with the expanded inner diameter under the action of the hole expanding component 3 is moved to the wiring metal pipe 1, and a certain gap is formed between the elastic shrinkage pipe fitting 2 and the wiring metal pipe 1 under the action of the hole expanding component 3, make elasticity shrink pipe fitting 2 reconversion through taking out reaming subassembly 3, thereby elasticity shrink pipe fitting 2 internal diameter of reconversion reduces rapidly and closely ties on wiring tubular metal resonator 1 to accomplish the installation.
As shown in fig. 3, the other end of the elastically contractible tube 2 is nested with a counteracting assembly 4, and the counteracting assembly 4 is used for counteracting the friction force generated when the reaming assembly 3 is pulled out of the elastically contractible tube 2;
the counteracting assembly 4 comprises a fan-shaped connecting piece 41 which is arranged at the other end of the elastic contraction pipe fitting 2 and is opposite to the first fan-shaped orifice plate 31, one side of the fan-shaped connecting piece 41, which is far away from the inner wall of the elastic contraction pipe fitting 2, is hinged with a mirror image assembly, the mirror image assembly comprises two mirror image diameter plates 42 which are arranged in mirror symmetry, and a second fan-shaped orifice plate 43 is connected between every two adjacent mirror image assemblies;
a second radial moving rod 44 for driving the second fan-shaped orifice plate 43 to move along the radial direction of the elastic contraction pipe fitting 2 is hinged on the outer end surface of the second fan-shaped orifice plate 43 facing the inner wall of the elastic contraction pipe fitting 2;
one end of the first fan-shaped orifice plate 31, which is far away from the diameter increasing assembly, is clamped on the fan-shaped connecting piece 41 through a first clamping groove 35;
the end of the second fan-shaped orifice plate 43 away from the mirror image assembly is clamped to the hinge body 33 through a second clamping groove 45.
The invention aims to carry out sampling test on the production line of the cable intermediate joint: the diameter of the elastic contraction pipe fitting 2 is widened through the reaming component 3, so that a test circuit is conveniently connected in series in the cable intermediate joint, the difficulty of inserting and connecting the test line is reduced, the elastic shrinkage pipe fitting 2 widened by the reaming component 3 can be directly sleeved on the test line, and the testing circuit is connected through the wiring metal tube 1 to form a loop, the elastic shrinkage tube 2 widened by the reaming component 3 is manually moved to the wiring metal tube 1, by simultaneously drawing out the reaming component 3 towards the left side and the counteracting component 4 towards the right side, the friction force drawn out of the reaming component 3 and the counteracting component 4 is counteracted just one by one through the arrangement of the similar structures of the reaming component 3 and the counteracting component 4, so that the elastic shrinkage pipe fitting 2 can be shrunk and bound on the wiring metal pipe 1 from the middle to two sides, and the position of the elastic shrinkage pipe fitting 2 is kept unchanged so as to ensure the installation correctness of the cable intermediate connector.
The first fan-shaped orifice plate 31 and the second fan-shaped orifice plate 43 are completely the same in shape, and the friction coefficients of the surfaces of the two are completely the same; the cross-sectional area of the second clamping groove 45 is smaller than the end surface area of the second fan-shaped orifice plate 43; the cross-sectional area of the first locking groove 35 is smaller than the end surface area of the first fan-shaped orifice plate 31.
Different from the simple scheme of the radial movement of the first fan-shaped orifice plate 31 of direct control in this scheme and lie in, through the dislocation distribution between first fan-shaped orifice plate 31 and the fan-shaped orifice plate 43 of second, through offsetting the special position relation of subassembly 4 and reaming subassembly 3, make first fan-shaped orifice plate 31 joint on fan-shaped connecting piece 41 that can misplace, on second fan-shaped orifice plate 43 dislocation joint and articulated body 33, thereby form a whole that connects temporarily, help both to resist the radial effort when this elasticity shrink pipe fitting 2 takes place the shrink, ordinary reaming plate structure, because the other end does not rely on, and produce certain deformation, lead to this elasticity shrink pipe fitting 2 reaming inhomogeneous, incomplete.
Through the small area design of first draw-in groove 35 and second draw-in groove 45 for when taking out offset subassembly 4 and reaming subassembly 3, first draw-in groove 35 and second draw-in groove 45 do not take place to contact with this elastic shrinkage pipe fitting 2, thereby avoid disturbing the production of frictional force.
Wherein, the length of the second fan-shaped orifice plate 43 and the length of the first fan-shaped orifice plate 31 are equal to the length of the elastic contraction pipe fitting 2.
The two ends of the elastic shrinkage pipe fitting 2 are sleeved with annular mounting plates 5;
the first radial moving rod 34 is slidably mounted on one annular mounting plate 5, and the second radial moving rod 44 is slidably mounted on the other annular mounting plate 5;
the first radial motion rod 34 and the second radial motion rod 44 are respectively sleeved with a driving spring 6, one end of the driving spring 6 is respectively connected with the first radial motion rod 34 or the second radial motion rod 44, and the other end of the driving spring 6 is connected with the annular mounting plate 5;
the annular mounting plate 5 is rotatably provided with a rotary driving annular plate 7 for driving the first radial moving rod 34 and the second radial moving rod 44 to move radially;
the rotary driving ring plate 7 is provided with a plurality of slope-shaped clamping grooves 8, each slope-shaped clamping groove 8 on one annular mounting plate 5 corresponds to the position of each first radial moving rod 34 one by one, and each slope-shaped clamping groove 8 on the other annular mounting plate 5 corresponds to the position of each second radial moving rod 44 one by one.
The first fan-shaped orifice plate 31 and the fan-shaped connecting piece 41 are both provided with a limit rotating sheet 9.
When the first and second radially moving rods 34, 44 are located at the innermost position of the ramp-shaped retaining groove 8, the outermost ends of the first and second radially moving rods 34, 44 are located at the innermost position, at this time, the driving spring 6 is compressed, the offsetting assembly 4 and the reaming assembly 3 are in the contracted state, and when the rotary driving ring plate 7 is rotated, the first and second radially moving rods 34, 44 are made to follow the inner wall of the ramp-shaped retaining groove 8 to the outermost position of the ramp-shaped retaining groove 8 under the restoring force of the driving spring 6, so that the radial position adjustment of the first and second radially moving rods 34, 44 is performed.
The scheme is different from the method for controlling the first radial motion rod 34 and the second radial motion rod 44 directly through the linear motors, and the method is characterized in that the plurality of first radial motion rods 34 and the plurality of second radial motion rods 44 can be controlled simultaneously by only driving the rotary driving ring plate 7, the movement consistency and the movement synchronism among various components can be ensured, and when the plurality of linear motors are used for independently controlling the components directly, the independent driving structures are required to be coordinated so as to ensure the movement synchronism and the movement coordination of the components.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The tooling for testing the electrical performance of the cable intermediate joint comprises a wiring metal pipe (1) and an elastic shrinkage pipe fitting (2) sleeved on the wiring metal pipe (1), and is characterized in that one end of the elastic shrinkage pipe fitting (2) is nested with a hole expansion assembly (3) used for expanding the inner diameter of the elastic shrinkage pipe fitting (2);
the broaching assembly (3) comprises a plurality of first fan-shaped hole expanding plates (31) nested in the elastic shrinkage pipe fitting (2), and the number of the first fan-shaped hole expanding plates (31) is even; one side, away from the inner wall of the elastic contraction pipe fitting (2), of the first fan-shaped orifice plate (31) is hinged with a diameter increasing assembly, and the diameter increasing assembly comprises two diameter increasing fan plates (32) which are arranged in a mirror symmetry mode;
the adjacent diameter increasing assemblies are connected through a hinge body (33), the hinge body (33) is hinged to the outer end face, facing the inner wall of the elastic shrinkage pipe fitting (2), of the pipe inner wall of the elastic shrinkage pipe fitting (2), and a first radial moving rod (34) used for driving the hinge body (33) to move along the radial direction of the elastic shrinkage pipe fitting (2) is hinged to the outer end face of the pipe inner wall of the elastic shrinkage pipe fitting (33).
2. The tooling for testing the electrical performance of the cable intermediate joint as recited in claim 1, wherein a counteracting assembly (4) is nested at the other end of the elastic shrinkage pipe fitting (2), and the counteracting assembly (4) is used for counteracting the friction force generated when the reaming assembly (3) is pulled out of the elastic shrinkage pipe fitting (2);
the counteracting assembly (4) comprises a fan-shaped connecting piece (41) which is arranged at the other end of the elastic contraction pipe fitting (2) and is opposite to the first fan-shaped orifice plate (31), one side, far away from the inner wall of the elastic contraction pipe fitting (2), of the fan-shaped connecting piece (41) is hinged with a mirror image assembly, the mirror image assembly comprises two mirror image diameter plates (42) which are arranged in a mirror image symmetry mode, and a second fan-shaped orifice plate (43) is connected between every two adjacent mirror image assemblies;
the outer end face, facing the inner wall of the elastic contraction pipe fitting (2), of the second fan-shaped orifice plate (43) is hinged with a second radial moving rod (44) used for driving the second fan-shaped orifice plate (43) to move along the radial direction of the elastic contraction pipe fitting (2).
3. The tooling for testing the electrical performance of the cable intermediate joint according to claim 2, wherein the first fan-shaped orifice plate (31) and the second fan-shaped orifice plate (43) are identical in shape and in surface friction coefficient.
4. The tooling for testing the electrical performance of the cable intermediate joint according to claim 3, wherein one end of the first fan-shaped hole expanding plate (31) away from the diameter increasing component is clamped on the fan-shaped connecting piece (41) through a first clamping groove (35);
one end, far away from the mirror image assembly, of the second fan-shaped hole expansion plate (43) is clamped on the hinge body (33) through a second clamping groove (45).
5. The tooling for testing the electrical performance of the cable intermediate joint according to claim 4, wherein the length of the second fan-shaped hole expanding plate (43) and the length of the first fan-shaped hole expanding plate (31) are equal to the length of the elastically contractible tube (2).
6. The tooling for testing the electrical performance of the cable intermediate joint according to claim 4, wherein the two ends of the elastic shrinkage pipe (2) are sleeved with annular mounting plates (5);
said first radially moving rod (34) being slidably mounted on one of said annular mounting plates (5) and said second radially moving rod (44) being slidably mounted on the other of said annular mounting plates (5);
the first radial motion rod (34) and the second radial motion rod (44) are sleeved with a drive spring (6), one end of the drive spring (6) is connected with the first radial motion rod (34) or the second radial motion rod (44) respectively, and the other end of the drive spring (6) is connected with the annular mounting plate (5);
a rotary driving annular plate (7) for driving the first radial moving rod (34) and the second radial moving rod (44) to move radially is rotatably mounted on the annular mounting plate (5);
the rotary driving ring plate (7) is provided with a plurality of slope-shaped clamping grooves (8), one slope-shaped clamping groove (8) on the ring-shaped mounting plate (5) corresponds to the position of each first radial moving rod (34) one by one, and the other slope-shaped clamping groove (8) on the ring-shaped mounting plate (5) corresponds to the position of each second radial moving rod (44) one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010579052.4A CN111697353B (en) | 2020-06-23 | 2020-06-23 | Tool for testing electrical performance of cable intermediate joint |
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| CN202010579052.4A CN111697353B (en) | 2020-06-23 | 2020-06-23 | Tool for testing electrical performance of cable intermediate joint |
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| CN111697353B CN111697353B (en) | 2021-05-11 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2836284Y (en) * | 2005-10-11 | 2006-11-08 | 泉州七星电气有限公司 | Pre-expander for transition joint of elastic cold-shrunk cable |
| CN202068128U (en) * | 2011-06-13 | 2011-12-07 | 天津五洲元通实业有限公司 | Pneumatic wire harness rubber sleeve hole-enlarging machine |
| CN106532379A (en) * | 2015-09-15 | 2017-03-22 | 国家电网公司 | Cable joint test connector |
| CN206685811U (en) * | 2017-03-29 | 2017-11-28 | 郑州大学 | A kind of instrument for being easy to cable connector |
| CN111130027A (en) * | 2019-12-18 | 2020-05-08 | 安徽复兴电缆集团有限公司 | Hard core cable breakpoint detection and repair device |
-
2020
- 2020-06-23 CN CN202010579052.4A patent/CN111697353B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2836284Y (en) * | 2005-10-11 | 2006-11-08 | 泉州七星电气有限公司 | Pre-expander for transition joint of elastic cold-shrunk cable |
| CN202068128U (en) * | 2011-06-13 | 2011-12-07 | 天津五洲元通实业有限公司 | Pneumatic wire harness rubber sleeve hole-enlarging machine |
| CN106532379A (en) * | 2015-09-15 | 2017-03-22 | 国家电网公司 | Cable joint test connector |
| CN206685811U (en) * | 2017-03-29 | 2017-11-28 | 郑州大学 | A kind of instrument for being easy to cable connector |
| CN111130027A (en) * | 2019-12-18 | 2020-05-08 | 安徽复兴电缆集团有限公司 | Hard core cable breakpoint detection and repair device |
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| Publication number | Publication date |
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| CN111697353B (en) | 2021-05-11 |
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