CN212513431U - Cable buffer layer friction measuring device - Google Patents
Cable buffer layer friction measuring device Download PDFInfo
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- CN212513431U CN212513431U CN202021895746.0U CN202021895746U CN212513431U CN 212513431 U CN212513431 U CN 212513431U CN 202021895746 U CN202021895746 U CN 202021895746U CN 212513431 U CN212513431 U CN 212513431U
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- cable
- buffer layer
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- cable fixing
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Abstract
The utility model relates to a cable buffer layer friction measuring device for measure the friction of cable core and buffer layer in the surveyed cable, the device includes electric putter, cable fixed establishment and supports the support body of whole device, electric putter's output is equipped with pressure sensor, cable fixed establishment includes cable unable adjustment base, cable fixed subassembly and cable supporting component, the cable supporting component is used for the horizontal support to survey the cable, when should be surveyed the cable and supported by the cable supporting component, electric putter's output is just to the cable core; the cable fixing component is matched with the cable supporting component to fix a tested cable, and the cable fixing base is further provided with a photoelectric sensor. Compared with the prior art, the utility model discloses a certain anchor clamps design will be surveyed the buffer layer of cable and fix, through the biggest stiction of electric putter test buffer layer axial, realized the sign of the degree of tightening between cable core and the buffer layer.
Description
Technical Field
The utility model belongs to the technical field of transmission cable frictional force detects and specifically relates to a cable buffer layer frictional force measuring device is related to.
Background
The transmission cable plays a key role in guaranteeing economic development for urban power supply. In recent years, with the rapid development of urbanization, the significance of guaranteeing the safe and stable operation of cables is great.
The high-voltage power cable in China generally adopts a semi-conductive buffer layer as a structural level for transition and grounding of an insulating wire core to a metal sleeve. The semiconductive buffer layer is generally formed by wrapping a semiconductive buffer belt, the compactness degree of the semiconductive buffer layer and the metal sleeve is one of important embodying of the reliability of the semiconductive buffer layer, and particularly for the structure of the corrugated aluminum sleeve, the corrugated aluminum sleeve and the transition conductive performance are generally in positive correlation.
In the cable laying process, the cable is stretched from a bent state of the cable drum to a flat state on site to generate deformation, the cable buffer layer generates stress, and static friction of the cable buffer layer is required to offset the stress. In the prior art, no relevant provisions are made for the static friction force detection and evaluation indexes of the cable buffer layer, the experimental technology for detecting the friction force of the cable buffer layer is not mature, and the quantitative measurement and evaluation standards of the cable performance are lacked.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a detect cable buffer layer frictional force measuring device of cable buffer layer stiction in order to overcome the defect that above-mentioned prior art exists.
The purpose of the utility model can be realized through the following technical scheme:
a friction force measuring device for a cable buffer layer is used for measuring the friction force between a cable core and the buffer layer in a tested cable, and comprises an electric push rod, a cable fixing mechanism and a frame body for supporting the whole device, wherein the output end of the electric push rod is provided with a pressure sensor, the cable fixing mechanism comprises a cable fixing base, a cable fixing assembly and a cable supporting assembly, and the cable fixing assembly and the cable supporting assembly are both connected with the cable fixing base; the cable supporting component is used for horizontally supporting the cable to be tested, and when the cable to be tested is supported by the cable supporting component, the output end of the electric push rod is opposite to the cable core; the cable fixing component is used for being matched with the cable supporting component to fix the tested cable, and the cable fixing base is further provided with a photoelectric sensor used for detecting the movement of the cable core.
Furthermore, the cable supporting assembly comprises a first cable fixing block, a second cable fixing block, a screw rod and a screw rod driving piece, wherein the first cable fixing block and the second cable fixing block are respectively provided with a supporting inclined plane for supporting the tested cable, the first cable fixing block and the second cable fixing block are respectively connected with the screw rod, and the screw rod is driven by the screw rod driving piece;
the cable fixing base is provided with a track for the first cable fixing block and the second cable fixing block to move horizontally, the first cable fixing block and the second cable fixing block are driven by the screw rod to move close to or away from each other in the track, and the first cable fixing block and the second cable fixing block form a movable V-shaped groove for supporting a tested cable and adjusting the height of the tested cable.
Furthermore, the screw rod is a positive and negative screw rod and is provided with a positive screw portion and a negative screw portion, the first cable fixing block is connected with the positive screw portion, and the second cable fixing block is connected with the negative screw portion.
Further, the screw rod driving piece is a handle.
Further, the number of the cable support assemblies is multiple, and the cable support assemblies are used for horizontally supporting the tested cable.
Furthermore, the cable fixing assembly comprises a first fixing rod, a second fixing rod and a wire plug, the first cable fixing block and the second cable fixing block in each cable support assembly are provided with through holes, the first fixing rod penetrates through the through hole of the first cable fixing block in each cable support assembly and is abutted against the cable fixing base, and the second fixing rod penetrates through the through hole of the second cable fixing block in each cable support assembly and is abutted against the cable fixing base; the wire stopper is fixedly connected with the first fixing rod, the second fixing rod and the tested cable.
Further, the number of the line indium is multiple.
Furthermore, the cable buffer layer friction force measuring device further comprises a line pressing block, and the output end of the electric push rod is sequentially connected with the pressure sensor and the line pressing block.
Furthermore, the line pressing block is of a cylinder structure.
Further, the cable buffer layer friction force measuring device further comprises a computer, and the electric push rod, the pressure sensor and the photoelectric sensor are all connected with the computer.
Compared with the prior art, the utility model has the advantages of it is following:
(1) the utility model aligns the cable core with the electric push rod through the cable supporting component, fixes the buffer layer of the tested cable through the cable fixing component, and pushes the cable core axially through the electric push rod, and pushes the cable core out of the cable metal sleeve of the buffer layer with a certain thrust; the power value that electric putter promoted the cable is detected by the pressure sensor who installs before electric putter, when cable core was released the cable metal covering, and the photoelectric sensor at the device front side is triggered by cable core, obtains corresponding test power value, as the biggest stiction of the semi-conductive buffer layer of cable, and the automation level is high, and has realized the sign to the degree of tightening between the insulating core of wrapping the buffering area and the metal covering.
(2) The first cable fixing block and the second cable fixing block with the supporting inclined planes are driven by the lead screw, so that the height of the tested cable can be adjusted, the setting and adjustment are convenient, and the control precision is guaranteed.
(3) The positive and negative thread lead screw is adopted to control the movement of the first cable fixing block and the second cable fixing block simultaneously, and the complexity of the structure is reduced.
(4) The first fixing rod and the second fixing rod which are fixed with the cable fixing block are matched with a plurality of wires to realize the reliable fixation of the tested cable.
(5) The electric push rod has set up the line ball briquetting with the contact department of cable core, has increased lifting surface area, has both reduced the loss to cable core and pressure sensor, is convenient for promote cable core again.
(6) After the installation of the tested cable is finished, the friction force of the cable buffer layer can be automatically controlled by a computer, the measurement of the friction force of the cable buffer layer is realized, the automation level is high, and the use is convenient.
Drawings
Fig. 1 is a schematic view of the overall structure of the friction force measuring device for the cable buffer layer of the present invention;
fig. 2 is a schematic view of a use state of the cable support assembly of the present invention;
fig. 3 is a control circuit diagram of the friction force measuring device for the cable buffer layer of the present invention;
in the figure, 1, an electric push rod, 2, a pressure sensor, 3, a pressing line pressing block, 4, a cable supporting assembly, 401, a first cable fixing block, 402, a second cable fixing block, 403, a screw rod, 404, a handle, 405, a through hole, 5, a cable fixing assembly, 501, a first fixing rod, 502, a line, 6, a tested cable, 601, a buffer layer, 602, a cable core, 7, a photoelectric sensor, 8, a frame body, 9, a cable fixing base, 10 and a computer.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
The embodiment provides a cable buffer layer frictional force measuring device for measure the frictional force of cable core 602 and buffer layer 601 among the surveyed cable 6, adopt certain anchor clamps design will be surveyed one section finished cable sheath and fix to cable buffer layer frictional force measuring device on, be used for the axial biggest stiction of test cable semi-conductive buffer layer, the compactness degree between the insulating core and the metal covering around the package buffering area of sign.
As shown in fig. 1, the device for measuring the friction force of the cable buffer layer in the embodiment includes an electric push rod 1, a cable fixing mechanism and a frame body 8 for supporting the whole device, wherein an output end of the electric push rod 1 is provided with a pressure sensor 2, the cable fixing mechanism includes a cable fixing base 9, a cable fixing component 5 and a cable supporting component 4, and both the cable fixing component 5 and the cable supporting component 4 are connected with the cable fixing base 9; the cable supporting component 4 is used for horizontally supporting the tested cable 6, and when the tested cable 6 is supported by the cable supporting component 4, the output end of the electric push rod 1 is opposite to the cable core 602; the cable fixing component 5 is used for being matched with the cable supporting component 4 to fix the tested cable 6, and the cable fixing base 9 is further provided with a photoelectric sensor 7 for detecting the movement of the cable core 602.
The components and the measuring method of the present apparatus are described in detail below.
1. Cable support assembly 4
As shown in fig. 2, the cable support assembly 4 includes a first cable fixing block 401, a second cable fixing block 402, a screw rod 403 and a screw rod driving member, the first cable fixing block 401 and the second cable fixing block 402 are both provided with a supporting inclined plane for supporting the tested cable 6, the first cable fixing block 401 and the second cable fixing block 402 are both connected to the screw rod 403, and the screw rod 403 is driven by the screw rod driving member;
the cable fixing base 9 is provided with a track for the first cable fixing block 401 and the second cable fixing block 402 to move horizontally, the first cable fixing block 401 and the second cable fixing block 402 are driven by the screw rod 403 to be close to or far away from each other in the track, and the first cable fixing block 401 and the second cable fixing block 402 form a movable V-shaped groove for supporting the tested cable 6 and adjusting the height of the tested cable 6.
Specifically, the inclined angles of the supporting inclined surfaces of the first cable fixing block 401 and the second cable fixing block 402 are the same, but the first cable fixing block 401 and the second cable fixing block 402 are symmetrically arranged with a gap therebetween, and can be close to or away from each other under the driving of the screw 403, so that the movable V-shaped groove is formed.
When the first cable fixing block 401 and the second cable fixing block 402 are close to each other, the supporting slopes of the first cable fixing block 401 and the second cable fixing block 402 are close to each other, and the tested cable 6 is driven to ascend; when the first cable fixing block 401 and the second cable fixing block 402 are far away from each other, the supporting slopes of the first cable fixing block and the second cable fixing block are far away from each other, so that the tested cable 6 is driven to descend, and therefore height adjustment is achieved.
The screw 403 is a positive and negative screw and is provided with a positive screw portion and a negative screw portion, the first cable fixing block 401 is connected with the positive screw portion, and the second cable fixing block 402 is connected with the negative screw portion.
In this embodiment, the screw rod driving member is a handle 404, and the number of the cable supporting assemblies 4 is four, which are used for horizontally supporting the cable 6 to be tested.
2. Cable support assembly 4
The cable fixing component 5 comprises a first fixing rod 501, a second fixing rod and a wire fastening 502, the first cable fixing block 401 and the second cable fixing block 402 in each cable supporting component 4 are respectively provided with a through hole 405, the first fixing rod 501 penetrates through the through hole 405 of the first cable fixing block 401 in each cable supporting component 4 and is abutted with the cable fixing base 9, and the second fixing rod penetrates through the through hole 405 of the second cable fixing block 402 in each cable supporting component 4 and is abutted with the cable fixing base 9; the wire clip 502 is fixedly connected with the first fixing rod 501, the second fixing rod and the tested cable 6.
In this embodiment, the number of the line closures 502 is three; the cable fixing base 9 is provided with a baffle for fixedly connecting the photoelectric sensor 7, and one ends of the first fixing rod 501 and the second fixing rod close to the photoelectric sensor 7 are abutted to the baffle of the cable fixing base 9.
3. Other parts
The friction force measuring device for the cable buffer layer further comprises a pressing line pressing block 3, and the output end of the electric push rod 1 is sequentially connected with the pressure sensor 2 and the pressing line pressing block 3.
The pressing line pressing block 3 is of a cylindrical structure.
The cable buffer layer friction force measuring device further comprises a computer 10, and the electric push rod 1, the pressure sensor 2 and the photoelectric sensor 7 are all connected with the computer 10.
4. Measuring method of cable buffer layer friction force measuring device
The embodiment also provides a measurement method of the cable buffer layer friction force measurement device, which can be summarized as follows:
firstly, a tested cable 6 is placed on the cable supporting component 4, and the relative fixation of the tested cable 6 and the cable fixing base 9 is realized through the cable fixing component 5; then start electric putter 1, promote cable core 602 and remove until photoelectric sensor 7 detects the signal, record pressure sensor 2's numerical value this moment, as the frictional force measurement result of cable buffer layer 601.
When in specific implementation, the method comprises the following steps:
as shown in fig. 2, the cable to be tested is placed on two cable fixing blocks (i.e. a first cable fixing block and a second cable fixing block). The positive and negative screw lead screws are driven by the rotating handle to adjust the distance between the two cable fixing blocks, and the height of the tested cable is adjusted along with the distance between the two cable fixing blocks until the height of the cable core reaches the central position of the electric push rod.
As shown in figure 1, the wire is fastened to penetrate through the fixing rods on the two cable fixing blocks and the cable to be tested, and the cable to be tested is fixed on the two cable fixing blocks, so that the cable to be tested cannot be pushed.
As shown in fig. 1, the electric push rod is started, and the electric push rod drives the pressure sensor and the pressing block to press the cable core of the tested cable. When the core of the tested cable is pushed, the photoelectric sensor is triggered to stop testing.
As shown in fig. 3, the electric push rod, the pressure sensor and the photoelectric sensor are controlled by a computer. And a computer sends a test starting command, the electric push rod slowly applies pressure to push the wire core of the tested cable, and pressure data sent back by the pressure sensor is recorded. When the photoelectric sensor is triggered, the electric push rod stops propelling, and the current pressure data is the numerical value of the maximum static friction force of the cable buffer layer.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A friction force measuring device for a cable buffer layer is used for measuring the friction force between a cable core (602) and the buffer layer (601) in a tested cable (6), and comprises an electric push rod (1), a cable fixing mechanism and a frame body (8) for supporting the whole device, and is characterized in that the output end of the electric push rod (1) is provided with a pressure sensor (2), the cable fixing mechanism comprises a cable fixing base (9), a cable fixing component (5) and a cable supporting component (4), and the cable fixing component (5) and the cable supporting component (4) are both connected with the cable fixing base (9); the cable supporting component (4) is used for horizontally supporting the cable (6) to be tested, and when the cable (6) to be tested is supported by the cable supporting component (4), the output end of the electric push rod (1) is opposite to the cable core (602); the cable fixing component (5) is connected with the cable supporting component (4) and is used for fixing the tested cable (6), and the cable fixing base (9) is further provided with a photoelectric sensor (7) used for detecting the movement of the cable core (602).
2. The cable buffer layer friction force measuring device according to claim 1, wherein the cable supporting assembly (4) comprises a first cable fixing block (401), a second cable fixing block (402), a screw rod (403) and a screw rod driving member, the first cable fixing block (401) and the second cable fixing block (402) are respectively provided with a supporting inclined surface for supporting the tested cable (6), the first cable fixing block (401) and the second cable fixing block (402) are respectively connected with the screw rod (403), and the screw rod (403) is driven by the screw rod driving member;
first cable fixed block (401) and second cable fixed block (402) form and remove V type groove for support by survey cable (6) and adjust the height of survey cable (6), cable unable adjustment base (9) are equipped with the confession first cable fixed block (401) and second cable fixed block (402) horizontal migration's track, first cable fixed block (401) and second cable fixed block (402) are in under the drive of lead screw (403) be close to each other in the track or keep away from.
3. The device for measuring the friction force of the cable buffer layer as claimed in claim 2, wherein the screw rod (403) is a positive and negative screw rod, and is provided with a positive screw portion and a negative screw portion, the first cable fixing block (401) is connected with the positive screw portion, and the second cable fixing block (402) is connected with the negative screw portion.
4. A cable buffer friction measurement device according to claim 2, characterized in that the screw drive is a handle (404).
5. A cable buffer friction measuring device according to claim 2, characterized in that the number of the cable support assemblies (4) is plural for horizontally supporting the cable (6) under test.
6. The cable buffer layer friction force measuring device of claim 5, wherein the cable fixing assembly (5) comprises a first fixing rod (501), a second fixing rod and a wire clip (502), the first cable fixing block (401) and the second cable fixing block (402) in each cable support assembly (4) are provided with through holes (405), the first fixing rod (501) penetrates through the through hole (405) of the first cable fixing block (401) in each cable support assembly (4) and abuts against the cable fixing base (9), the second fixing rod penetrates through the through hole (405) of the second cable fixing block (402) in each cable support assembly (4) and abuts against the cable fixing base (9); the cable (6) to be detected is fixed on the first fixing rod (501) and the second fixing rod by the wire clamp (502).
7. The apparatus for measuring the friction of cable buffer layer as claimed in claim 6, wherein the number of said indium wires (502) is plural.
8. The device for measuring the friction force of the cable buffer layer as claimed in claim 1, further comprising a line pressing block (3), wherein the output end of the electric push rod (1) is sequentially connected with the pressure sensor (2) and the line pressing block (3).
9. A cable buffer friction measurement device according to claim 8, characterized in that the crimping block (3) is of cylindrical configuration.
10. The cable buffer layer friction force measuring device according to claim 1, further comprising a computer (10), wherein the electric push rod (1), the pressure sensor (2) and the photoelectric sensor (7) are connected to the computer (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021895746.0U CN212513431U (en) | 2020-09-03 | 2020-09-03 | Cable buffer layer friction measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021895746.0U CN212513431U (en) | 2020-09-03 | 2020-09-03 | Cable buffer layer friction measuring device |
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| Publication Number | Publication Date |
|---|---|
| CN212513431U true CN212513431U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021895746.0U Active CN212513431U (en) | 2020-09-03 | 2020-09-03 | Cable buffer layer friction measuring device |
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|---|---|
| CN (1) | CN212513431U (en) |
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2020
- 2020-09-03 CN CN202021895746.0U patent/CN212513431U/en active Active
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