CN215491552U - Displacement measuring device for transmission conductor stress-strain test - Google Patents
Displacement measuring device for transmission conductor stress-strain test Download PDFInfo
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- CN215491552U CN215491552U CN202122216255.XU CN202122216255U CN215491552U CN 215491552 U CN215491552 U CN 215491552U CN 202122216255 U CN202122216255 U CN 202122216255U CN 215491552 U CN215491552 U CN 215491552U
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Abstract
The utility model discloses a displacement measuring device for a stress-strain test of a transmission conductor, which comprises a base and a main body, wherein the base comprises a bottom plate and a vertical rod vertically arranged above the bottom plate, universal wheels are arranged below the bottom plate, the main body is fixed on the upper part of the vertical rod, the main body comprises a sheet metal cover and clamping heads arranged at two ends of the sheet metal cover, a mounting plate is arranged inside the sheet metal cover, an embedded guide rail is arranged at the left end of the mounting plate, a connecting block is arranged on the guide rail, a movable base is arranged at the left end of the connecting block, the clamping heads arranged at the left end of the sheet metal cover are fixed on the movable base, a digital grating is arranged on the mounting plate, and the clamping heads arranged at the other end of the sheet metal cover are fixed on the mounting plate through a heightening block, so that the displacement measuring device has the characteristics of simple structure, reliable performance, high measuring precision, long measuring gauge length, wide measuring range of deformation amount and the like on the whole, has high practicability and popularization value.
Description
Technical Field
The utility model relates to the technical field of electric wire detection, in particular to a displacement measuring device for a transmission conductor stress-strain test.
Background
The stress-strain test is one of type test items of the transmission conductor, is an important detection item before the transmission conductor is put into operation, and is characterized in that the stress-strain test is to install the conductor on a horizontal tensile machine and then load different loads to obtain a stress-strain curve of the conductor. According to the requirements of GB/T1179-2017, the strain of the lead is determined by measuring the displacement of two ends of the gauge length of the lead, the gauge length plate is arranged on a bolt chuck for fastening single lines of the lead together, the measuring plate is carefully arranged at a position vertical to the lead, and then the measuring plate with a dial or a displacement sensor is used for measuring and collecting stress strain data.
Most of the wire deformation displacement measuring device commonly used in the market at present is heavier, easily exert an influence to the measuring result of wire because of the weight of self in the use, thereby make measuring result and objective actual serious nonconformity, and the fixed mode between most displacement measuring device and the wire is the locking of bolt chuck, still can produce irreversible damage to the wire body when complex operation, in addition, most displacement measuring device still has measuring accuracy low, the gauge length is shorter and the answer variable measuring range is little etc. drawback, these displacement measuring device are when carrying out the stress strain experiment of long wire, very easily cause the error that can not neglect, thereby influence the normal development of stress strain experiment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: the displacement measuring device for the transmission conductor stress-strain test is provided to solve the defects.
In order to achieve the above purpose, the utility model provides the following technical scheme:
a displacement measuring device for a stress-strain test of a transmission conductor comprises a base and a main body, wherein the base comprises a bottom plate and a vertical rod vertically arranged above the bottom plate, universal wheels are arranged below the bottom plate, the main body is fixed on the upper part of the vertical rod, the main body comprises a sheet metal cover and clamping heads arranged at two ends of the sheet metal cover, the sheet metal cover is of a hollow shell structure, a mounting plate is arranged inside the sheet metal cover, an embedded guide rail is arranged at the left end of the mounting plate, a connecting block is arranged on the guide rail, a movable base is arranged at the left end of the connecting block, the clamping heads arranged at the left end of the sheet metal cover are fixed on the movable base, a digital grating is arranged on the mounting plate, a body of the digital grating is arranged on the mounting plate, the moving end of the digital grating is fixed with the movable base through the connecting block, the clamping heads arranged at the other end of the sheet metal cover are fixed on the mounting plate through a block with a block, the middle position of the sheet metal cover is provided with a handle.
Preferably, the left end of panel beating cover is equipped with the guiding hole, the movable base is the T style of calligraphy, installs form the I shape after the supporting head on the movable base splices with the movable base, the movable base block of installing the supporting head is in the guiding hole, the connecting block can drive the direction of movable base and digital grating's removal end along the guide rail freely remove in the guiding hole.
Preferably, the clamping head includes fixed exposed core and activity exposed core, V type groove has all been seted up on fixed exposed core and the activity exposed core, fixed exposed core is fixed through respectively setting up the lead screw on plate body both sides perpendicularly with the activity exposed core respectively, the activity exposed core can carry out reciprocating motion on the extending direction of lead screw.
Preferably, the side walls of the V-shaped grooves formed in the fixed clamping end and the movable clamping end are provided with gaskets.
Preferably, the mounting plate is made of an aviation-grade aluminum alloy material.
The utility model has the beneficial effects that:
the utility model relates to a displacement measuring device for a transmission conductor stress-strain test, which has the characteristics of extremely high gauge length and extremely large deformation measuring range compared with the traditional measuring instrument due to the special structural design, simultaneously uses a digital grating as a measuring element, effectively improves the measuring precision and the operation convenience of the measuring device, is also provided with a universal wheel below a bottom plate, provides convenience for the daily movement of the measuring device on one hand, enables the measuring device to follow a conductor to be measured while the conductor is deformed in the working process, can finish the precise measuring work without leaving traces or only leaving fine traces on the conductor body without operating the conductor body to be measured by matching with a specially designed clamping head, has the characteristics of simple structure, reliable performance, high measuring precision, long measuring gauge length, wide deformation measuring range and the like on the whole, has high practicability and popularization value.
Drawings
FIG. 1: the utility model has a structure schematic diagram;
FIG. 2: the front view of the present invention;
FIG. 3: top view of the utility model;
FIG. 4: side view of the present invention;
FIG. 5: a top view of the body of the present invention;
FIG. 6: the main structure of the utility model is shown schematically;
FIG. 7: a main body front view of the present invention;
FIG. 8: the guide rail of the utility model is in a top view;
FIG. 9: the structure of the clamping head is shown schematically;
FIG. 10: the gripping head of the present invention is side view.
Detailed Description
The following description of the embodiments of the present invention is made with reference to the accompanying drawings 1-10:
as shown in fig. 1-10, a displacement measuring device for a transmission conductor stress-strain test comprises a base 1 and a main body 2, wherein the base 1 comprises a bottom plate 12 and an upright rod 11 vertically arranged above the bottom plate 12, a universal wheel 13 is arranged below the bottom plate 12, when displacement measurement is carried out, if the universal wheel 13 is arranged, the displacement measuring device can synchronously follow up along with the deformation process of a measured conductor, the problem that the measuring result is inconsistent with the fact due to the influence of the factors of the measuring device is prevented, meanwhile, the universal wheel 13 can facilitate the schedule movement of the displacement measuring device, the main body 2 is fixed on the upper part of the upright rod 11 and can be fixed by bolts, the main body 2 comprises a sheet metal cover 3 and clamping heads 6 respectively arranged at two ends of the sheet metal cover 3, the sheet metal cover 3 is of a hollow shell structure, and can effectively protect precision devices arranged inside the sheet metal cover 3, the sheet metal cover 3 is internally provided with a mounting plate 21, the left end of the mounting plate 21 is provided with an embedded guide rail 24, the guide rail 24 is provided with a connecting block 23, the left end of the connecting block 23 is provided with a movable base 22, a clamping head 6 arranged at the left end of the sheet metal cover 3 is fixed on the movable base 22, the mounting plate 21 is provided with a digital grating 25, a body of the digital grating 25 is arranged on the mounting plate 21, the moving end of the digital grating 25 is fixed with the movable base 22 through the connecting block 23, the left end of the sheet metal cover 3 is provided with a guide hole 31, the movable base 22 is T-shaped, the clamping head 6 arranged on the movable base 22 and the movable base 22 are spliced to form an I shape, the movable base 22 provided with the clamping head 6 is clamped in the guide hole 31, the connecting block 23 can drive the moving ends of the movable base 22 and the digital grating 25 to freely move in the guide hole 31 along the direction of the guide rail 24, thus when the clamping head 6 arranged on the movable base 22 moves, the moving end of the digital grating 25 on the connecting block 23 can be driven to move synchronously, and the accurate moving distance of the clamping head 6 can be detected.
The clamping head 6 arranged at the other end of the sheet metal cover 3 is fixed on the mounting plate 21 through a block-up block and extends out of the sheet metal cover 3, the clamping head 6 comprises a fixed clamping end 61 and a movable clamping end 62, the fixed clamping end 61 and the movable clamping end 62 in the clamping head 6 at the two ends of the sheet metal cover 3 are respectively equal in height, the fixed clamping end 61 and the movable clamping end 62 are both provided with a V-shaped groove, and the side wall of the V-shaped groove is provided with a liner 64, so that the tested wire can be effectively protected when being clamped, the wire body is prevented from being damaged, the fixed clamping end 61 and the movable clamping end 62 are fixed through a screw rod 66 respectively vertically arranged at the two sides of the plate body, the movable clamping end 62 can reciprocate in the extending direction of the screw rod 66, in the actual use process, a reset spring can be arranged on the screw rod 66 between the fixed clamping end 61 and the movable clamping end 62, and the screw rod 66 arranged outside the movable clamping end 62 on the outer side is provided with a locking bolt, and the locking degree of the two clamping ends can be adjusted by adjusting the screwing depth of the locking bolt on the screw rod 66.
The mounting plate 21 is made of an aviation-grade aluminum alloy material, has the advantages of high strength and light weight, and is favorable for improving the measurement precision and the performance reliability of the displacement measurement device, and the handle 5 is arranged in the middle of the sheet metal cover 3 and is favorable for carrying and moving the displacement measurement device.
The utility model relates to a displacement measuring device for a transmission conductor stress-strain test, which is characterized in that in the assembly process of a main body 2, parts such as a movable base 22, a connecting block 23, a digital grating 25 and the like are assembled on an installation plate 21, the installation plate 21 is assembled in a sheet metal cover 3, the front ends of the movable base 22 and a heightening block extend out of a guide hole 31 and other preset holes in the sheet metal cover 3, and finally a clamping head 6 is respectively fixed on the front ends of the movable base 22 and the heightening block exposed at the two ends of the sheet metal cover 3. In the practical use process, firstly, the displacement measuring device of the utility model is placed at the inner side of a horizontal tensile testing machine, then a lead is connected with two ends of the horizontal tensile testing machine, the lead is straightened by RTS with the initial load of 2 percent, the loaded load is removed after the lead is straightened, then the displacement measuring device is installed on the lead under the condition of no tensile force, when the displacement measuring device is installed, a locking bolt outside a screw rod 66 is firstly unscrewed, a fixed clamping end 61 is separated from a movable clamping end 62, the lead is placed in a groove between the two clamping ends, the body of the lead is well contacted with a gasket 64, then the two clamping ends are locked, then the stress-strain test of the lead can be carried out on a control console, when the lead is deformed, the movable head 6 is driven to move, the clamping head 6 further drives the movable base 22 arranged below the clamping head 6 to move, the movable base 22 drives the movable end of the digital grating 25 to move through the connecting block 23, and when the position of the movable end of the digital grating 25 and the position of the body are changed, the accurate displacement of the clamping head 6, namely the displacement deformation of the lead can be displayed on the console, and by the method, the measurement precision can be improved to 0.001mm or even higher.
The utility model relates to a displacement measuring device for a transmission conductor stress-strain test, which has the characteristics of extremely high gauge length and extremely large deformation measuring range compared with the traditional measuring instrument due to the special structural design, simultaneously uses a digital grating as a measuring element, effectively improves the measuring precision and the operation convenience of the measuring device, is also provided with a universal wheel below a bottom plate, provides convenience for the daily movement of the measuring device on one hand, enables the measuring device to follow a conductor to be measured while the conductor is deformed in the working process, can finish the precise measuring work without leaving traces or only leaving fine traces on the conductor body without operating the conductor body to be measured by matching with a specially designed clamping head, has the characteristics of simple structure, reliable performance, high measuring precision, long measuring gauge length, wide deformation measuring range and the like on the whole, has high practicability and popularization value.
The utility model is described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the above embodiments, and it is within the scope of the utility model to adopt the method concept and technical solution of the utility model to make such insubstantial modifications, or to directly apply the concept and technical solution of the utility model to other applications without any modification.
Claims (5)
1. The displacement measuring device for the stress-strain test of the power transmission conductor is characterized by comprising a base (1) and a main body (2), wherein the base (1) comprises a bottom plate (12) and a vertical rod (11) vertically arranged above the bottom plate (12), universal wheels (13) are arranged below the bottom plate (12), the main body (2) is fixed on the upper part of the vertical rod (11), the main body (2) comprises a sheet metal cover (3) and clamping heads (6) arranged at two ends of the sheet metal cover (3), the sheet metal cover (3) is of a hollow shell structure, a mounting plate (21) is arranged inside the sheet metal cover (3), an embedded guide rail (24) is arranged at the left end of the mounting plate (21), a connecting block (23) is arranged on the guide rail (24), a movable base (22) is arranged at the left end of the sheet metal cover (3), the clamping heads (6) are fixed on the movable base (22), be provided with digital grating (25) on mounting panel (21), the body setting of digital grating (25) is on mounting panel (21), the removal end of digital grating (25) is together fixed through connecting block (23) and movable base (22), sets up at the panel beating cover (3) other end clamping head (6) fix on mounting panel (21) through a bed hedgehopping piece, the intermediate position of panel beating cover (3) is equipped with handle (5).
2. The displacement measuring device for the transmission line stress-strain test according to claim 1, wherein a guide hole (31) is formed in the left end of the sheet metal cover (3), the movable base (22) is T-shaped, a clamping head (6) mounted on the movable base (22) and the movable base (22) form an I shape after being spliced, the movable base (22) provided with the clamping head (6) is clamped in the guide hole (31), and the connecting block (23) can drive the movable base (22) and the digital grating (25) to move freely in the guide hole (31) along the direction of the guide rail (24).
3. The displacement measuring device for the transmission line stress-strain test according to claim 1, wherein the clamping head (6) comprises a fixed clamping end (61) and a movable clamping end (62), each of the fixed clamping end (61) and the movable clamping end (62) is provided with a V-shaped groove, the fixed clamping end (61) and the movable clamping end (62) are fixed through a screw rod (66) respectively vertically arranged on two sides of the plate body, and the movable clamping end (62) can reciprocate in the extending direction of the screw rods (66).
4. A displacement measuring device for transmission conductor stress-strain testing according to claim 3, characterised in that the V-grooves provided on the fixed (61) and movable (62) clamp ends are provided with gaskets (64) on the side walls.
5. A displacement measuring device for transmission conductor stress-strain testing according to claim 1, characterized in that the mounting plate (21) is made of an aircraft grade aluminium alloy material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122216255.XU CN215491552U (en) | 2021-09-14 | 2021-09-14 | Displacement measuring device for transmission conductor stress-strain test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122216255.XU CN215491552U (en) | 2021-09-14 | 2021-09-14 | Displacement measuring device for transmission conductor stress-strain test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215491552U true CN215491552U (en) | 2022-01-11 |
Family
ID=79769182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122216255.XU Active CN215491552U (en) | 2021-09-14 | 2021-09-14 | Displacement measuring device for transmission conductor stress-strain test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215491552U (en) |
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2021
- 2021-09-14 CN CN202122216255.XU patent/CN215491552U/en active Active
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