Insulation detection equipment of insulation cross arm and insulation cross arm production line

Abstract

The utility model provides an insulation cross arm insulation detection device and an insulation cross arm production line, and belongs to the electric power related equipment field, the insulation cross arm insulation detection device comprises a positioning assembly and a connecting assembly, the positioning assembly comprises a fixing plate and a support head, the plate surface of the fixing plate is parallel to the horizontal direction, and the support head is arranged on the upper plate surface of the fixing plate; the supporting head can move in the vertical direction and the length direction of the fixing plate, the connecting assembly comprises a first clamp and a pressing piece which are arranged in the detection loop, the first clamp is arranged on the upper plate face and can clamp the insulating cross arm in the width direction of the fixing plate, and the pressing piece can be close to or away from the first clamp in the length direction of the fixing plate. The pressing piece can get close to the supporting head in the vertical direction. Compared with the prior art, the insulation detection device of the insulation cross arm can solve the technical problem that an existing detection device is prone to generating errors due to the fact that an operator does not operate the insulation detection device.

Description

Technical Field

[0001] The utility model belongs to the field of electrical equipment, and more specifically, relates to an insulation detection device for an insulation cross arm. The utility model also relates to an insulation cross arm production line. Background Art

[0002] The cross arm is generally arranged at the top of the utility pole to support and overhead the electric wire. Moreover, the cross arm is an important component in the pole tower. It can also be used to install insulators and fittings to support the conductor or lightning protection wire and keep a certain safe distance as required. In terms of usage, the existing cross arms can be divided into straight cross arms, corner cross arms, strain cross arms, etc. In terms of materials, the existing cross arms can be divided into iron cross arms, porcelain cross arms, and composite insulation cross arms. Among them, the insulation cross arm has been widely used in the field of electrical equipment due to its low cost and reliable durability. In the prior art, the insulation cross arm mainly includes the following manufacturing processes: 1. Integral molding and cutting of the cross arm body. After mixing synthetic resin and glass fiber, it is put into a preset mold for curing, and then the cross arm body is refined into a suitable shape and size; 2. Coating of the outer protective layer. The cross arm body is placed in a preset mold, and then silica gel is injected into the preset mold by injection molding to connect a layer of silica gel to the outer periphery of the cross arm body; 3. Drying and grinding. The cross arm body coated with silica gel (organic silica gel) is put into a drying oven to dry and form the outer protective layer, and the dried and formed outer protective layer is ground to make the shape and specifications of the outer periphery of the outer layer meet the requirements; 4. Installation of the connector. A metal connector for installing the conductor is sleeved at the end of the cross arm body.

[0003] Before the insulation cross arm is taken offline from the production line, it is necessary to conduct sampling quality inspection on the insulation performance, tensile strength, and bending and torsion resistance of the insulation cross arm. Among them, when detecting the insulation performance of the insulation cross arm, the existing detection equipment generally uses two wire clips in the same power consumption circuit to connect two metal parts located at the ends of the cross arm body respectively, and then tests the conductivity between the two metal connectors at both ends of the insulation cross arm by increasing the voltage and current. However, the inventor found during practical use that the existing detection equipment is too simple, and the insulation performance of the insulation cross arm is prone to errors due to improper operation and urgently needs improvement. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an insulation detection device for an insulation cross arm to solve the technical problem that the existing detection equipment is prone to errors due to improper operation by operators.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide an insulation detection device for an insulating cross arm, including a positioning component and a connecting component. The positioning component includes a horizontally placed fixed plate and a support head provided on the upper plate surface of the fixed plate. The support head can move in the vertical direction and the length direction of the fixed plate. The connecting component includes a first clamp and a pressing member both provided in the detection circuit. The first clamp is provided on the upper plate surface and can clamp the insulating cross arm in the width direction of the fixed plate. The pressing member is movably hinged to the fixed plate and is located above the support head. The pressing member can approach or move away from the first clamp in the length direction and the vertical direction of the fixed plate.

[0006] Further, the positioning component further includes a support cylinder, a support spring, a telescopic rod and a positioning pin. The telescopic rod is coaxially and elastically inserted into the support cylinder through the support spring. The support cylinder is movably provided on the upper plate surface of the fixed plate, and the moving direction of the support cylinder is parallel to the length direction of the fixed plate. The axis of the support cylinder is parallel to the vertical direction. One end of the telescopic rod located outside the support cylinder is connected to the support head. A plurality of first through holes are provided on the outer circumference of the support cylinder in the vertical direction. A plurality of second through holes are provided on the outer circumference of the telescopic rod in the vertical direction. The second through holes can be selectively pinned and fixed to the corresponding first through holes through the positioning pin.

[0007] Further, the connecting component further includes a driving lead screw, a connecting block, a connecting rod and a guide rod. The driving lead screw is rotatably provided on the upper plate surface of the fixed plate. The guide rod is fixed to the fixed plate, and both the guide rod and the driving lead screw are parallel to the length direction of the fixed plate. The connecting block is provided with a threaded hole threadedly adapted to the driving lead screw and a guide hole guidingly adapted to the guide rod. The connecting rod is slidably provided at the top of the connecting block in a vertically lockable manner. The length direction of the connecting rod is parallel to the vertical direction. The pressing member is connected to the connecting rod, and the connecting rod can drive the pressing member to move up and down.

[0008] Further, the first clamp includes two correspondingly arranged clamping heads. A clamping space for clamping the insulating cross arm is formed between the two clamping heads. A plurality of first movable blocks are hinged to the corresponding inner side surfaces of the two clamping heads. The rotation axis of the first movable block is parallel to the vertical direction, and an arc-shaped depression is formed on the surface of the first movable block facing the insulating cross arm.

[0009] Further, a plurality of second movable blocks are hinged to the side of the pressing member facing the insulating cross arm. A plurality of third movable blocks are hinged to the side of the support head facing the insulating cross arm. The hinge axes of the second movable blocks and the third movable blocks are both parallel to the length direction of the insulating cross arm.

[0010] Further, a sliding groove is formed on the upper plate surface of the fixed plate. The length direction of the sliding groove is parallel to the length direction of the fixed plate, and the depth direction of the sliding groove is parallel to the up-down direction. The bottom of the support cylinder is slidably fitted in the sliding groove.

[0011] Further, at both ends corresponding to each other in the length direction of the fixed plate, limiting protrusions are fixedly provided. Both ends of the driving lead screw are rotatably fitted with the two limiting protrusions respectively.

[0012] Further, the connection assembly further includes a driving motor. The driving motor is arranged on any one of the limiting protrusions, and the output shaft of the driving motor is connected to the driving lead screw.

[0013] Compared with the prior art, the beneficial effects of the insulation detection device for the insulation cross arm provided by the present utility model are as follows:

[0014] The present utility model can connect the insulation cross arm through the first fixture and the pressing member, and then detect the conductivity of the insulation cross arm. In addition, the support head in the present utility model can cooperate with the first fixture to more stably place the insulation cross arm on the fixed plate, preventing the insulation cross arm from shifting in position during the insulation detection operation; in addition to the above beneficial effects, the present utility model can change and lock the insulation detection length for the insulation cross arm by moving the pressing member, which not only enables the present utility model to test the insulation performance of insulation cross arms of different sizes and specifications, but also can eliminate the errors caused by human factors through the locking of the pressing member on the fixed plate.

[0015] Another object of the present utility model is to propose a production line for insulation cross arms, including the insulation detection device for insulation cross arms as described above.

[0016] Compared with the prior art, the production line for insulation cross arms in the present utility model has all the beneficial effects of the above-mentioned insulation detection device for insulation cross arms, and will not be repeated here. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0018] Figure 1 is the front view of the insulation detection device for the insulation cross arm provided by the present utility model;

[0019] Figure 2 is the schematic diagram of the connection relationship between the support cylinder and the telescopic rod provided by the present utility model.

[0020] In the figure:

[0021] 1. Positioning component; 11. Fixed plate; 111. Chute; 112. Limit projection; 12. Support head; 121. Support cylinder; 122. Support spring; 123. Telescopic rod; 124. Positioning pin;

[0022] 2. Connection component; 21. First clamp; 22. Pressing member; 23. Driving lead screw; 24. Connection block; 25. Connecting rod; 26. Guide rod; 27. First movable block; 28. Driving motor. Detailed implementation manners

[0023] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0024] In the description of the present utility model, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0025] In addition, in the description of the present utility model, unless otherwise clearly defined, the terms "installation", "connection", "connection", "connection member" should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, or it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model may be understood in combination with the specific circumstances.

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0027] Please refer to Figure 1 and Figure 2, the insulation detection device for the insulation cross arm provided by the present utility model will be described. The insulation detection device for the insulation cross arm includes a positioning assembly 1 and a connection assembly 2. The positioning assembly 1 includes a horizontally placed fixing plate 11 and a support head 12 provided on the upper plate surface of the fixing plate 11, and the support head 12 can move in the vertical direction and the length direction of the fixing plate 11. The connection assembly 2 includes a first clamp 21 and a pressing member 22 both provided in the detection circuit. The first clamp 21 is provided on the upper plate surface and can clamp the insulation cross arm in the width direction of the fixing plate 11. The pressing member 22 is movably hinged to the fixing plate 11 and is located above the support head 12. The pressing member 22 can approach or move away from the first clamp 21 in the length direction and the vertical direction of the fixing plate 11.

[0028] Compared with the prior art, the above embodiment can connect the insulation cross arm through the first clamp 21 and the pressing member 22, and then detect the conductivity of the insulation cross arm. In addition, the support head 12 in this embodiment can cooperate with the first clamp 21 to place the insulation cross arm more stably on the fixing plate 11, preventing the insulation cross arm from shifting in position during the insulation detection operation; in addition to the above beneficial effects, this embodiment can change and lock the insulation detection length for the insulation cross arm by moving the pressing member 22, which not only enables this embodiment to test the insulation performance of insulation cross arms of different sizes and specifications, but also can eliminate the errors caused by human factors by locking the pressing member 22 on the fixing plate 11.

[0029] Based on the above embodiment, a feasible implementation manner is proposed. Specifically, the positioning assembly 1 further includes a support cylinder 121, a support spring 122, a telescopic rod 123 and a positioning pin 124. The telescopic rod 123 is coaxially inserted into the support cylinder 121 through the support spring 122 in a retractable manner. The support cylinder 121 is movably provided on the upper plate surface of the fixing plate 11, and the moving direction of the support cylinder 121 is parallel to the length direction of the fixing plate 11. The axis of the support cylinder 121 is parallel to the vertical direction. One end of the telescopic rod 123 located outside the support cylinder 121 is connected to the support head 12. A plurality of first through holes are provided on the outer periphery of the support cylinder 121 in the vertical direction. A plurality of second through holes are provided on the outer periphery of the telescopic rod 123 in the vertical direction. The second through holes can definitely be selectively pinned and fixed to the corresponding first through holes through the positioning pin 124. With such a setting, this embodiment can adjust the vertical height of the support head 12 by the telescopic movement of the telescopic rod 123, so that the support head 12 can abut against insulation cross arms of different specifications. Moreover, this embodiment can also adjust the position of the support head 12 relative to the first clamp 21 by moving the support cylinder 121 on the fixing plate 11, making the support position of the support head 12 for the insulation cross arm more reasonable.

[0030] Preferably, in the above embodiments, both the first through hole and the second through hole are oblong holes, so that the telescopic rod 123 has redundant elasticity for telescoping in the up and down directions. Furthermore, in this embodiment, the support head 12 can abut against the insulating cross arm by the elastic support of the support spring 122, making the contact between the insulating cross arm and the support head 12 closer.

[0031] As a feasible implementation manner, the connection assembly 2 further includes a driving lead screw 23, a connection block 24, a connecting rod 25, and a guide rod 26. The driving lead screw 23 is rotatably arranged on the upper plate surface of the fixed plate 11. The guide rod 26 is fixed on the fixed plate 11, and both the guide rod 26 and the driving lead screw 23 are parallel to the length direction of the fixed plate 11. The connection block 24 is provided with a threaded hole threadedly adapted to the driving lead screw 23 and a guide hole guidingly adapted to the guide rod 26. The connecting rod 25 is slidably arranged at the top of the connection block 24 in a lockable manner in the up and down direction. The length direction of the connecting rod 25 is parallel to the up and down direction. The pressing member 22 is connected to the connecting rod 25, and the connecting rod 25 can drive the pressing member 22 to move up and down. With such a setting, in this embodiment, the rotation of the driving lead screw 23 can be used to drive the connection block 24 to move along the length direction of the fixed plate 11, and then drive the pressing plate to move, so as to adjust the position of the pressing plate relative to the first clamp 21. At the same time, the guide rod 26 in this embodiment can guide and position the connection block 24 to prevent the connection block 24 from rotating together with the driving lead screw 23.

[0032] Existing insulation detection equipment generally uses wire clamps to clamp the insulating cross arm. However, the contact between the wire clamp and the outer periphery of the insulating cross arm is basically point contact, and the wire clamp is also prone to poor contact with the insulating cross arm due to human factors. To solve the above problems, a feasible implementation manner is proposed. Specifically, the first clamp 21 includes two correspondingly arranged clamping heads. A clamping space for clamping the insulating cross arm is formed between the two clamping heads. A plurality of first movable blocks 27 are hinged to the corresponding inner side surfaces of the two clamping heads. The rotation axis of the first movable blocks 27 is parallel to the up and down direction, and an arc-shaped recess is formed on the surface of the first movable blocks 27 facing the insulating cross arm. In this embodiment, during the process of the two clamping heads squeezing the insulating cross arm, the first movable blocks 27 are squeezed and rotate around the rotation axis, making the contact between the first movable blocks 27 and the insulating cross arm more fitting, thereby solving the technical problem that the existing wire clamps are prone to inaccurate conductivity detection results of the insulating cross arm due to improper manual operation. Similarly, in a feasible implementation manner, a plurality of second movable blocks are hinged to the side of the pressing member 22 facing the insulating cross arm, and a plurality of third movable blocks are hinged to the side of the support head 12 facing the insulating cross arm. The rotation axes of the second movable blocks and the third movable blocks are both parallel to the length direction of the insulating cross arm. In this embodiment, the mutual adaptation of the second movable blocks and the third movable blocks can more closely fit the outer periphery of the insulating cross arm, preventing problems such as poor contact.

[0033] In some embodiments, a sliding groove 111 is formed on the upper plate surface of the fixing plate 11. The length direction of the sliding groove 111 is parallel to the length direction of the fixing plate 11, and the depth direction of the sliding groove 111 is parallel to the up-down direction. The bottom of the support cylinder 121 is slidably fitted in the sliding groove 111. The sliding groove 111 can guide the movement of the support cylinder 121 and prevent the support cylinder 121 from detaching from the fixing plate 11.

[0034] As a feasible implementation manner, limiting protrusions 112 are fixedly provided corresponding to each other at both ends in the length direction of the fixing plate 11, and both ends of the driving lead screw 23 are rotatably fitted with the two limiting protrusions 112. In this embodiment, the two limiting protrusions 112 can enable the driving lead screw 23 to only move around its own axis and prevent the driving lead screw 23 from generating axial displacement. Further, the limiting protrusion 112 is provided with a tapered roller bearing rotatably fitted with the driving lead screw 23 to make the rotation of the driving lead screw 23 on the fixing plate 11 smoother. Preferably, based on the above embodiment, the connecting assembly 2 further includes a driving motor 28. The driving motor 28 is arranged on any one of the limiting protrusions 112, and the output shaft of the driving motor 28 is connected to the driving lead screw 23. In this embodiment, the setting of the driving motor 28 can make the movement of the connecting block 24 more accurate. The on-site operator can input the measured length to make the connecting block 24 reach the specified position, preventing measurement errors caused by human operation.

[0035] Based on the same inventive concept, the present utility model also proposes a production line for an insulating cross arm. The production line for the insulating cross arm includes the insulating detection device for the insulating cross arm as described above.

[0036] Compared with the prior art, the production line for the insulating cross arm in the present utility model has all the beneficial effects of the above-mentioned insulating detection device for the insulating cross arm, and will not be repeated here.

[0037] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An insulation detection device for an insulating cross arm, characterized in that: The invention comprises a positioning component (1) and a connecting component (2), wherein the positioning component (1) comprises a horizontally placed fixing plate (11) and a supporting head (12) arranged on the upper plate surface of the fixing plate (11), wherein the supporting head (12) can move in the up-down direction and the length direction of the fixing plate (11), and the connecting component (2) comprises a first clamp (21) and a pressing member (22) both arranged in a detection circuit, wherein the first clamp (21) is arranged on the upper plate surface and can clamp an insulating cross arm in the width direction of the fixing plate (11), and the pressing member (22) is movably hinged to the fixing plate (11) and is located above the supporting head (12), and the pressing member (22) can move closer to or farther from the first clamp (21) in the length direction and the up-down direction of the fixing plate (11).

2. The insulation detection device for the insulating crossarm according to claim 1, characterized in that: The positioning assembly (1) further comprises a support tube (121), a support spring (122), a telescopic rod (123) and a positioning pin (124); the telescopic rod (123) is coaxially inserted into the support tube (121) so as to be resilient through the support spring (122); the support tube (121) is movably arranged on the upper plate surface of the fixed plate (11); and the moving direction of the support tube (121) is parallel to the length direction of the fixed plate (11); the axis of the support tube (121) is parallel to the up-down direction; one end of the telescopic rod (123) located outside the support tube (121) is connected to the support head (12); a plurality of first through holes are arranged on the outer periphery of the support tube (121) along the up-down direction; a plurality of second through holes are arranged on the outer periphery of the telescopic rod (123) along the up-down direction; the second through holes can be selectively connected and fixed to the corresponding first through holes through the positioning pin (124).

3. The insulation detection device for the insulating cross arm according to claim 2, characterized in that: The connecting assembly (2) further comprises a driving screw (23), a connecting block (24), a connecting rod (25) and a guide rod (26); the driving screw (23) is rotatably arranged on the upper plate surface of the fixing plate (11); the guide rod (26) is fixedly arranged on the fixing plate (11); and the guide rod (26) and the driving screw (23) are both parallel to the length direction of the fixing plate (11); the connecting block (24) is provided with a threaded hole adapted to the thread of the driving screw (23) and a guide hole adapted to the guide of the guide rod (26); the connecting rod (25) is arranged on the top of the connecting block (24) so ​​as to be lockable and slidable in the up-down direction; the length direction of the connecting rod (25) is parallel to the up-down direction; the clamping member (22) is connected to the connecting rod (25); and the connecting rod (25) can drive the clamping member (22) to move up and down.

4. The insulation detection device for the insulating cross arm according to claim 3, characterized in that: The first clamp (21) comprises two correspondingly arranged clamps, a clamping space for clamping the insulating cross arm is formed between the two clamps, and corresponding inner side surfaces of the two clamps are hinged with a plurality of first movable blocks (27), the rotation axis of the first movable blocks (27) is parallel to the up and down direction, and a curved recess is formed on a side of the first movable block (27) facing the insulating cross arm.

5. The insulation detection device for the insulating cross arm according to claim 4, characterized in that: A plurality of second movable blocks are hingedly connected to the side of the clamping piece (22) facing the insulating cross arm, and a plurality of third movable blocks are hingedly connected to the side of the support head (12) facing the insulating cross arm, and the hinge axes of the second movable blocks and the third movable blocks are parallel to the length direction of the insulating cross arm.

6. The insulation detection device for the insulating cross arm according to claim 2, characterized in that: The upper plate surface of the fixed plate (11) is provided with a slide groove (111), the length direction of the slide groove (111) is parallel to the length direction of the fixed plate (11), the depth direction of the slide groove (111) is parallel to the up-down direction, and the bottom of the support tube (121) is slidably adapted to the slide groove (111).

7. The insulation detection device for the insulating cross arm according to claim 3, characterized in that: The two ends of the fixed plate (11) in the length direction are fixed with corresponding limiting protrusions (112), and the two ends of the driving screw (23) are respectively rotationally adapted to the two limiting protrusions (112).

8. The insulation detection device for the insulating cross arm according to claim 7, characterized in that: The connecting assembly (2) further comprises a driving motor (28), wherein the driving motor (28) is arranged on any one of the limiting protrusions (112), and an output shaft of the driving motor (28) is connected to the driving screw (23).

9. A production line for insulating crossarms, characterized in that: An insulation detection device comprising an insulating crossarm as claimed in any one of claims 1 to 8.

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