CN211262640U - Glass insulator falling test device - Google Patents
Glass insulator falling test device Download PDFInfo
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- CN211262640U CN211262640U CN201921743732.4U CN201921743732U CN211262640U CN 211262640 U CN211262640 U CN 211262640U CN 201921743732 U CN201921743732 U CN 201921743732U CN 211262640 U CN211262640 U CN 211262640U
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Abstract
The utility model discloses a glass insulator falling test device, which belongs to the field of electric power transportation insulation detection and comprises a bracket, a fixed assembly and a vibration generation system; the glass insulator string is connected with the bracket through the fixing assembly; the vibration generating system comprises a power device, an eccentric transmission mechanism and a frequency converter, wherein the eccentric transmission mechanism is connected with the power device. The utility model discloses can simulate the glass spare of preventing falling type glass insulator and break the back, the condition of falling under different vibration conditions to the test prevents falling the performance of preventing of falling type glass insulator.
Description
Technical Field
The utility model relates to a test device that glass insulator falls belongs to the insulating detection area of electric power transportation.
Background
At present, toughened glass insulators, one of three main types of main stream insulators applied to power transmission lines, have been widely applied to overhead power transmission lines at home and abroad due to the advantages of high automation degree of production, little influence of process factors, stable product quality, no aging of toughened glass pieces, long service life, zero-value self-breaking, convenience in detection in line operation and maintenance and high residual strength. However, the toughened glass insulator has a self-breaking phenomenon in the operation of the power transmission line, broken toughened glass fragments of the toughened glass insulator can be immediately dispersed and fall from high altitude to the ground, crops, equipment facilities or buildings under the power transmission line can be damaged, and personal injury can be caused if personnel work or pass under the power transmission line. Therefore, a falling-prevention type glass insulator has been developed and is applied to some domestic lines. There is a need for a device which can be used in laboratories to test the protection against falling of such a glass insulator chain in the event of a broken glass element.
SUMMERY OF THE UTILITY MODEL
The utility model provides a glass insulator test device that falls can simulate the glass spare of preventing falling type glass insulator and break the back, the condition of falling under different vibration conditions to test this kind of glass insulator prevent the performance of falling.
In order to achieve the above purpose, the utility model adopts the technical proposal that: a glass insulator falling test device comprises a bracket, a fixing assembly and a vibration generating system; the glass insulator string is connected with the bracket through the fixing assembly; the vibration generating system comprises a power device, an eccentric transmission mechanism and a frequency converter, wherein the eccentric transmission mechanism is connected with the power device, and the eccentric transmission mechanism is connected with the fixed assembly.
Preferably, the fixing assembly comprises a ratchet tightener, a first wire clamp, a second wire clamp, a connecting fitting and a steel cable; one end of the steel cable penetrates through the support and is connected with the ratchet wheel wire grip, and the other end of the steel cable is fixed on the support through a first wire clamp or is connected with the eccentric transmission mechanism; the ratchet wheel wire grip is positioned outside the bracket, and the second wire clamp is matched with the connecting hardware fitting for use; the steel cable is provided with a connecting fitting, the connecting fitting comprises an iron cap connecting fitting and a steel foot connecting fitting, and the iron cap connecting fitting and the steel foot connecting fitting are used for fixing the glass insulator string.
Preferably, the fixing assemblies are arranged in a group in the horizontal direction, and in a group in the vertical direction; the fixing assembly arranged in the vertical direction is fixed on a steel cable of the fixing assembly arranged in the horizontal direction through a third wire clamp; and the steel cable of the fixing component arranged in the horizontal direction is fixed on the bracket through the first wire clamp.
Preferably, the fixing assemblies are horizontally arranged in a group, and the steel cables of the horizontally arranged fixing assemblies are fixed on the bracket through the first wire clamps.
Preferably, the fixing assemblies are arranged in a group in the vertical direction, and the steel cables of the fixing assemblies arranged in the vertical direction are connected with the eccentric transmission mechanism through the first wire clamps.
Preferably, a spring structure is arranged in the main body of the iron cap connecting hardware fitting.
Preferably, a protection component is arranged at the joint of the eccentric transmission mechanism and the steel cable and/or the joint between the two fixing components.
Preferably, the protection component comprises a first limiting ring and a second limiting ring, and a cylindrical sheath is connected between the first limiting ring and the second limiting ring through threads.
Preferably, the cylindrical sheath consists of two semi-circular hollow cylinders.
Preferably, the protective component material is polyamide.
The utility model has the advantages that the eccentric transmission mechanism and the frequency converter are arranged, so that the output vibration frequency and amplitude can be adjusted to adapt to the simulation of different external conditions; the glass insulator string can be developed into string shapes with various angles by changing the position of the fixing assembly arranged on the support, so that the working state of the glass insulator string can be simulated. The utility model discloses can multiple cluster shape be experimental simultaneously to improve test efficiency.
The utility model discloses a screw down the spacing ring at protection component both ends, be about to the protection component and take off for the change of protection component is very simple and convenient, can avoid wearing and tearing each other between the adapting unit through changing the nylon sheath, and the extension fixture life-span.
The utility model discloses an install the spring additional in the iron cap link fitting, the vibration output of the vibration generation system of being convenient for can apply glass insulator chain completely on, realize that the vibration of glass insulator chain is continuous, the pause of interval nature can not appear.
Drawings
Fig. 1 is a schematic structural diagram of a glass insulator drop test device provided in the first embodiment;
fig. 2 is a schematic structural diagram of a glass insulator falling test device provided in the second embodiment;
fig. 3 is a schematic structural diagram of a glass insulator falling test device provided in the third embodiment;
fig. 4 is a schematic structural diagram of a protection assembly according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of the iron cap connecting fitting in the embodiment of the present invention;
fig. 6 is a sectional view of the steel leg link fitting in the embodiment of the present invention.
Wherein: 1-ratchet tightener, 2-bracket, 3-first wire clamp, 4-iron cap link fitting, 41-iron cap connecting rod, 42-spring, 43-iron cap link fitting main body, 44-first split pin, 45-first connecting steel cable shaft, 5-second wire clamp, 6-first steel cable, 7-second steel cable, 8-vibration generating system, 81-power device, 82-eccentric transmission mechanism, 83-frequency converter, 84-power switch box, 85-operation table, 9-foundation bolt, 10-concrete foundation, 11-glass insulation string, 12-protection component, 121-first limit ring, 122-second limit ring, 123-semi-circular hollow cylindrical sheath, 13-third wire clamp, 14-steel foot link fitting, 141-steel leg connecting hardware fitting main body, 142-second split pin and 143-second connecting steel cable shaft.
Detailed Description
For a better understanding of the nature of the present invention, its further description is provided below with reference to the following detailed description and the accompanying drawings.
The utility model is suitable for a detection area that electric power transported is insulating, is particularly useful for preventing falling the drop performance test of type glass insulator after glass spare breaks.
Example one
A glass insulator falling test device is structurally shown in figure 1 and comprises a support 2, two groups of fixing assemblies and a vibration generating system 8.
The bracket 2 is formed by welding channel steel and is fixed on a concrete foundation 10 through foundation bolts 9, and a firm and reliable mounting frame is provided for all components of the testing device and the tested glass insulator string.
The fixed component is provided with a set of in the horizontal direction, and the vertical direction is provided with a set of. The fixing assembly comprises a ratchet tightener 1, a first wire clamp 3, a connecting fitting, a second wire clamp 5, a first steel cable 6 arranged in the horizontal direction, a second steel cable 7 arranged in the vertical direction and a third wire clamp 13. The ratchet wheel tightener 1 is positioned outside the bracket 2, one end of a first steel cable 6 penetrates through the side wall of the bracket 2 to be connected with the ratchet wheel tightener 1, and the other end of the first steel cable is fixed on the bracket 2 through a first wire clamp 3; one end of the second steel cable 7 penetrates through the top of the support 2 to be connected with the other ratchet wheel wire tightener 1, and the other end of the second steel cable is connected with the first steel cable 6 through a third wire clamp 13. The first steel cable 6 and the second steel cable 7 are formed by twisting carbon steel wires and are used for flexible connection among a connecting hardware fitting, the bracket 2, the ratchet wheel tightener 1 and the like. The first wire clamp 3, the second wire clamp 5 and the third wire clamp 13 are made of carbon steel through machining, are composed of wedge-shaped clamping blocks and bolts which are arranged at the upper part and the lower part and are used for clamping the steel cable joint, and the reliability of connection of the steel cable, a connecting fitting, the support 2, the ratchet wheel tightener 1 and the like is ensured.
The ratchet wheel tightener 1 comprises a roller with a ratchet wheel, a pawl, a rotating shaft, a handle, an installation frame and the like. The ratchet wheel wire grip 1 is matched with the first steel cable 6 and the second steel cable 7 to be suitable for tests of different numbers of glass insulator strings, and the tension value of the glass insulator strings 5 is adjusted.
The connecting hardware comprises an iron cap connecting hardware 4 and a steel pin connecting hardware 14. The link fitting is used with the second wire clamp 5 in a matched manner. The connecting hardware fitting needs to determine different connecting shapes and specification sizes according to the connecting mode and size of the iron cap and the steel pin of the glass insulator. The iron cap connecting hardware fitting 4 and the steel foot connecting hardware fitting 14 are connected with the first steel cable 6 and the second steel cable 7 in a pin shaft mode, and the second wire clamp 5 is used for pressing the steel cable head. An iron cap connecting fitting 4 and a steel foot connecting fitting 14 are respectively arranged on the first steel cable 6 and the second steel cable 7. And a glass insulator string 11 is fixed between the iron cap connecting hardware 4 and the steel foot connecting hardware 14 on the same steel cable. The link fitting is preferably alloy steel. The iron cap link fitting 4 has a structure as shown in fig. 5, and includes an iron cap connecting rod 41, an iron cap link fitting main body 43, a spring 42 disposed in the iron cap link fitting main body 43, a first split pin 44, and a first connecting cable shaft 45. The spring 42 is additionally arranged in the iron cap connecting hardware fitting 4, so that the vibration output of the vibration generation system can be completely applied to the glass insulator string, the vibration continuity of the glass insulator string 11 is realized, and intermittent pause can not occur. The steel leg link fitting 14 has a structure as shown in fig. 6, and includes a steel leg link fitting main body 141, a second split pin 142, and a second link cable shaft 143.
The fixing assembly realizes flexible connection between the glass insulator string 11 and the support 2, and facilitates vibration output of the vibration generating system 8.
The vibration generating system 8 includes a power unit 81, an eccentric transmission 82 connected to the power unit 81, and a frequency converter 83. The eccentric gear 82 is connected to the first cable 6, and the power unit 81 is connected to the frequency converter 83. The vibration generating system 8 can adjust both the frequency and amplitude of the vibration output to create different test conditions by adjusting the output frequency of the frequency converter 83 and the eccentricity of the eccentric drive mechanism 82. The power device 81 adopts a motor, and the eccentric transmission mechanism 82 adopts a rolling bearing for transmission so as to reduce friction and abrasion during rotation. The vibration generating system 8 is also provided with a power switch box 84 and an operation table 85.
The joint of the first steel cable 6 and the second steel cable 7 is provided with a protection component 12, and the joint of the eccentric transmission mechanism 82 and the first steel cable 6 is provided with the protection component 12. The protective assembly 12, as shown in fig. 4, includes a first stop collar 121, a second stop collar 122, and a cylindrical sheath between the first stop collar 121 and the second stop collar 122. The cylindrical jacket is formed by splicing two hollow semi-cylindrical jackets 123. The dimensions of the protective assembly 12 match the dimensions of the first and second cables 6, 7. The first limiting ring 121 and the second limiting ring 122 are internally provided with internal threads, and the top and the bottom of the two semi-cylindrical sheaths 123 are provided with external threads matched with the first limiting ring 121 and the second limiting ring 122. In use, the two semi-cylindrical sheaths 123 can be assembled together by screwing the first 121 and second 122 stop rings to provide a wear-resistant buffer between the eccentric drive 82 and the second cable 7, and between the first 6 and second 7 cables. When the semi-cylindrical sheath 123 is worn and needs to be replaced, the first limiting ring 121 and the second limiting ring 122 only need to be screwed out. The material of which the protective component 12 is made is preferably polyamide.
Example two
A glass insulator falling test device is structurally shown in figure 2 and comprises a support 2, a group of fixing assemblies and a vibration generating system 8.
The bracket 2 is formed by welding channel steel and is fixed on a concrete foundation 10 through foundation bolts 9, and a firm and reliable mounting frame is provided for all components of the testing device and the tested glass insulator string.
The fixed components are arranged in a group in the horizontal direction. The fixing assembly comprises a ratchet tightener 1, a first wire clamp 3, an iron cap connecting fitting 4, a second wire clamp 5, a first steel cable 6 and a steel foot connecting fitting 14, wherein the first steel cable 6 and the steel foot connecting fitting are arranged in the horizontal direction. Ratchet turn-buckle 1 is located the support 2 outside, and 6 one end of first steel cable is run through the lateral wall of support 2 and is connected with ratchet turn-buckle 1, and the other end is fixed on support 2 through first fastener 3.
The ratchet wheel tightener 1 comprises a roller with a ratchet wheel, a pawl, a rotating shaft, a handle, an installation frame and the like. The ratchet wheel wire tightener 1 is matched with the first steel cable 6 to be suitable for tests of different numbers of glass insulator strings, and the tension value of the glass insulator strings 5 is adjusted.
The link fitting is used with the second wire clamp 5 in a matched manner. The connecting hardware fitting needs to determine different connecting shapes and specification sizes according to the connecting mode and size of the iron cap and the steel pin of the glass insulator. The iron cap connecting hardware fitting 4 and the steel foot connecting hardware fitting 14 are connected with the first steel cable 6 in a pin shaft and cable penetrating mode, and the second wire clamp 5 is used for pressing the steel cable head. An iron cap connecting hardware fitting 4 and a steel foot connecting hardware fitting 14 are arranged on the first steel cable 6. A glass insulator string 11 is fixed between the iron cap connecting hardware 4 and one steel leg connecting hardware 14.
The fixing assembly realizes flexible connection between the glass insulator string 11 and the support 2, and facilitates vibration output of the vibration generating system 8.
The vibration generating system 8 includes a power unit 81, an eccentric transmission 82 connected to the power unit 81, and a frequency converter 83. The eccentric gear 82 is connected to the first cable 6, and the power unit 81 is connected to the frequency converter 83. The vibration generation system 8 can be adjusted to create different test conditions by adjusting the frequency output of the frequency converter 83 and the eccentricity of the eccentric drive mechanism 82 so that both the frequency and amplitude of the vibration output can be adjusted. The power device 81 adopts a motor, and the eccentric transmission mechanism 82 adopts a rolling bearing for transmission so as to reduce friction and abrasion during rotation. The vibration generating system 8 is also provided with a power switch box 84 and an operation table 85.
The connection between the eccentric transmission 82 and the first cable 6 is provided with a protective assembly 12.
EXAMPLE III
A glass insulator falling test device is structurally shown in figure 3 and comprises a support 2, a group of fixing assemblies and a vibration generating system 8.
The bracket 2 is formed by welding channel steel and is fixed on a concrete foundation 10 through foundation bolts 9, and a firm and reliable mounting frame is provided for all components of the testing device and the tested glass insulator string.
The fixed components are arranged in a group in the vertical direction. The fixing assembly comprises a ratchet tightener 1, a first wire clamp 3, a connecting fitting, a second wire clamp 5 and a second steel cable 7 arranged in the vertical direction. Ratchet turn-buckle 1 is located the support 2 outside, and second steel cable 7 one end is run through the lateral wall of support 2 and is connected with ratchet turn-buckle 1, and the other end is connected 82 with eccentric drive mechanism through first fastener 3.
The ratchet wheel tightener 1 comprises a roller with a ratchet wheel, a pawl, a rotating shaft, a handle, an installation frame and the like. The ratchet wheel wire grip 1 can be suitable for tests of different numbers of glass insulator strings through the matching with the second steel cable 7, and the tension value of the glass insulator string 5 is adjusted.
The connecting hardware comprises an iron cap connecting hardware 4 and a steel pin connecting hardware 14. The link fitting 4 is used in cooperation with the second wire clamp 5. The connecting hardware fitting needs to determine different connecting shapes and specification sizes according to the connecting mode and size of the iron cap and the steel pin of the glass insulator. The iron cap connecting hardware fitting 4 and the steel foot connecting hardware fitting 14 are connected with the second steel cable 7 in a cable penetrating mode through a pin shaft, and the second wire clamp 5 is used for pressing the steel cable head. An iron cap connecting fitting 4 and a steel foot connecting fitting 14 are arranged on the second steel cable 7. And a glass insulator string 11 is fixed between the iron cap connecting hardware 4 and the steel pin connecting hardware 14.
The fixing assembly realizes flexible connection between the glass insulator string 11 and the support 2, and facilitates vibration output of the vibration generating system 8.
The vibration generating system 8 includes a power unit 81, an eccentric transmission 82 connected to the power unit 81, and a frequency converter 83. The eccentric gear 82 is connected to the second cable 7, and the power unit 81 is connected to the frequency converter 83. The vibration generation system 8 can be adjusted to create different test conditions by adjusting the frequency output of the frequency converter 83 and the eccentricity of the eccentric drive mechanism 82 so that both the frequency and amplitude of the vibration output can be adjusted. The power device 81 adopts a motor, and the eccentric transmission mechanism 82 adopts a rolling bearing for transmission so as to reduce friction and abrasion during rotation. The vibration generating system 8 is also provided with a power switch box 84 and an operation table 85.
The connection between the eccentric transmission 82 and the second cable 7 is provided with a protective assembly 12.
The utility model discloses a change the position of the first line clamp of vertical or horizontal direction fixed subassembly on the support and just can form the operating condition of multiple angle with the glass insulator string, and be applicable to the simultaneous test of a plurality of cluster shapes.
It should be noted that, although the present invention has been described by the above embodiments, the present invention may have other various embodiments. Various modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention, and it is intended that all such modifications and changes fall within the scope of the appended claims and their equivalents.
Claims (10)
1. The utility model provides a test device that glass insulator falls which characterized in that: comprises a bracket, a fixed component and a vibration generating system; the glass insulator string is connected with the bracket through the fixing assembly; the vibration generating system comprises a power device, an eccentric transmission mechanism and a frequency converter, wherein the eccentric transmission mechanism is connected with the power device, and the eccentric transmission mechanism is connected with the fixed assembly.
2. The glass insulator falling test device according to claim 1, wherein: the fixing assembly comprises a ratchet tightener, a first wire clamp, a second wire clamp, a connecting hardware fitting and a steel cable; one end of the steel cable penetrates through the support and is connected with the ratchet wheel wire grip, and the other end of the steel cable is fixed on the support or the eccentric transmission mechanism through a first wire clamp; the ratchet wheel wire grip is positioned outside the bracket, and the second wire clamp is matched with the connecting hardware fitting for use; the connecting hardware fitting comprises an iron cap connecting hardware fitting and a steel foot connecting hardware fitting, and the iron cap connecting hardware fitting and the steel foot connecting hardware fitting are used for fixing the glass insulator string.
3. The glass insulator falling test device according to claim 2, wherein: the fixing assemblies are arranged in a group in the horizontal direction, and in a group in the vertical direction; the fixing assembly arranged in the vertical direction is fixed on a steel cable of the fixing assembly arranged in the horizontal direction through a third wire clamp; and the steel cable of the fixing component arranged in the horizontal direction is fixed on the bracket through the first wire clamp.
4. The glass insulator falling test device according to claim 2, wherein: the horizontal direction of the fixing component is provided with a group, and the steel cable of the fixing component arranged in the horizontal direction is fixed on the support through a first wire clamp.
5. The glass insulator falling test device according to claim 2, wherein: the fixing assemblies are arranged in a group in the vertical direction, and the steel cables of the fixing assemblies arranged in the vertical direction are connected with the eccentric transmission mechanism through first wire clamps.
6. The glass insulator falling test device according to claim 2, wherein: and a spring is arranged in the main body of the iron cap connecting hardware fitting.
7. The glass insulator falling test device according to claim 2, wherein: and a protective component is arranged at the joint of the steel cable and the eccentric transmission mechanism or the joint of the steel cable and the steel cables in other fixing components.
8. The glass insulator falling test device according to claim 7, wherein: the protection component comprises a first limiting ring and a second limiting ring, and a cylindrical sheath is connected between the first limiting ring and the second limiting ring through threads.
9. The glass insulator drop test device of claim 8, wherein: the cylindrical sheath is composed of two hollow semi-cylindrical sheaths.
10. The device for testing the falling of a glass insulator according to any one of claims 7 to 9, wherein: the protective component material is polyamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921743732.4U CN211262640U (en) | 2019-10-17 | 2019-10-17 | Glass insulator falling test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921743732.4U CN211262640U (en) | 2019-10-17 | 2019-10-17 | Glass insulator falling test device |
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| CN211262640U true CN211262640U (en) | 2020-08-14 |
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| CN201921743732.4U Active CN211262640U (en) | 2019-10-17 | 2019-10-17 | Glass insulator falling test device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763416A (en) * | 2019-10-17 | 2020-02-07 | 南京电气绝缘子有限公司 | Glass insulator falling test device |
| CN112213165A (en) * | 2020-09-10 | 2021-01-12 | 中国电力科学研究院有限公司 | Composite insulator sectioning test device and method |
-
2019
- 2019-10-17 CN CN201921743732.4U patent/CN211262640U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110763416A (en) * | 2019-10-17 | 2020-02-07 | 南京电气绝缘子有限公司 | Glass insulator falling test device |
| CN112213165A (en) * | 2020-09-10 | 2021-01-12 | 中国电力科学研究院有限公司 | Composite insulator sectioning test device and method |
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