Digital display load weighing device for power transmission line
Technical Field
The utility model relates to a transmission line construction technical field specifically is a transmission line digital display load weighing device.
Background
In the overhead transmission line work process, often need to carry out the operation through the construction hanging point, because construction operation environment is complicated, there are various uncertain factors, the pulling force value of hanging point department can exceed anticipated pulling force value sometimes, consequently, an urgent need for a digital display load weighing device who is arranged in the transmission line construction, come to measure the pulling force value in the work process, prevent that the pulling force value in the work process of construction from exceeding the biggest pulling force value that the hanging point instrument can bear.
When the tension value in the construction operation process is prevented from exceeding the preset tension value of the device, the device can give an alarm to remind an operator that the load value exceeds the tension value which can be borne by the hanging point hardware fitting during construction, the construction operation should be stopped, and the construction site is checked, so that the digital display load weighing device for the power transmission line is provided to solve the problems.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a transmission line digital display load weighing device possesses advantages such as automatic alarm, has solved too big and unwilling of the pulling force value of hanging point department in the overhead transmission line work progress, influences the problem of constructor safety.
(II) technical scheme
For the purpose of realizing above-mentioned automatic alarm, the utility model provides a following technical scheme: a digital display load weighing device for a power transmission line comprises a weighing device, wherein a first threaded hole is formed in the top of the interior of the weighing device, a second threaded hole is formed in the interior of the weighing device and one end, far away from the first threaded hole, of the weighing device, a display is fixedly connected to the front of the weighing device, an alarm is fixedly connected to the front of the weighing device and the bottom of the display, a tension sensor is fixedly connected to the front of the weighing device and the right side of the alarm, a hanging point shackle is fixedly connected to the top of the weighing device, a first locking bolt penetrating through and extending to the exterior of the first threaded hole is in threaded connection with the exterior of the hanging point shackle, a construction shackle is fixedly connected to the bottom of the weighing device, a second locking bolt penetrating through and extending to the exterior of the second threaded hole is in threaded connection with the exterior of the construction shackle, a first pin hole is formed in the, the weighing device is characterized in that a second pin hole is formed in the second locking bolt, self-locking pins penetrating through and extending to the outer portions of the first pin hole and the second pin hole are fixedly connected to the outer portions of the first locking bolt and the second locking bolt, and a strain gauge is fixedly connected to the front side of the weighing device and located on the right side of the display.
Preferably, the width of the weighing device is larger than the thickness of the weighing device, and the first threaded hole and the second threaded hole are symmetrical to each other.
Preferably, the display is rectangular in appearance, the hanging point shackle is inverted U-shaped in appearance, and a threaded hole with the size equal to the outer diameter of the first locking bolt is formed in the hanging point shackle.
Preferably, the construction shackle is U-shaped, and a slotted hole with the size of the outer diameter of the second locking bolt is formed in the construction shackle.
Preferably, the second pin hole is circular in shape, the inner diameter of the second pin hole is equal to the outer diameter of the pillar at the bottom of the self-locking pin, and the self-locking pin consists of a solid ball head and two solid cylinders.
Preferably, the strain gauge is electrically connected with the working plate, the strain gauge is electrically connected with the compensation plate, and the number of the working plate and the number of the compensation plate are two and are electrically connected with each other two by two.
(III) advantageous effects
Compared with the prior art, the utility model provides a transmission line digital display load weighing device possesses following beneficial effect:
1. this transmission line digital display load weighing device through setting up the positive foil gage of weighing device, can show the pulling force value of construction hanging point department through the display, and the rethread sets up the positive alarm of weighing device, then through setting for early warning pulling force value, after the pulling force value that receives when construction hanging point department surpassed the early warning value of setting for, the alarm just can send out the warning, warns constructor and notices, has reached automatic alarm's effect.
2. This transmission line digital display load weighing device, through setting up the fixed point of hanging of first locking bolt and breaking out, the rethread sets up the fixed construction of second locking bolt and breaks out, can effectively strengthen the stability of hanging the point and breaking out and construction and breaking out, the equal fixedly connected with self-locking round pin in inside through setting up first pinhole and second pinhole, can effectively prevent to hang the point and break out and construct the bolt in breaking out not hard up, avoid appearing the condition of droing, thereby the effectual pulling force value of hanging the point department in having solved the overhead transmission line work progress is too big and unwilling, influence constructor's safe problem.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the structure of the present invention;
fig. 3 is a front view of the weighing apparatus of the present invention;
fig. 4 is a structural circuit diagram of the present invention.
In the figure: the device comprises a weighing device 1, a first threaded hole 2, a second threaded hole 3, a display 4, an alarm 5, a tension sensor 6, a hanging point shackle 7, a first locking bolt 8, a construction shackle 9, a second locking bolt 10, a first pin hole 11, a second pin hole 12, a self-locking pin 13 and a strain gauge 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a digital display load weighing device for a power transmission line comprises a weighing device 1, a first threaded hole 2 is formed in the top of the interior of the weighing device 1, a second threaded hole 3 is formed in the interior of the weighing device 1 and at one end far away from the first threaded hole 2, the width of the weighing device 1 is larger than the thickness of the weighing device 1, the first threaded hole 2 and the second threaded hole 3 are symmetrical to each other, a display 4 is fixedly connected to the front of the weighing device 1, an alarm 5 is fixedly connected to the front of the weighing device 1 and at the bottom of the display 4, a tension sensor 6 is fixedly connected to the front of the weighing device 1 and at the right side of the alarm 5, a hanging point shackle 7 is fixedly connected to the top of the weighing device 1, a first locking bolt 8 penetrating through and extending to the exterior of the first threaded hole 2 is connected to the exterior of the hanging point shackle 7 by, the appearance of the hanging point shackle 7 is inverted U-shaped, a threaded hole with the size of the outer diameter of a first locking bolt 8 is formed in the hanging point shackle 7, a construction shackle 9 is fixedly connected to the bottom of the weighing device 1, a second locking bolt 10 which penetrates through and extends to the outside of a second threaded hole 3 is connected to the outside of the construction shackle 9 in a threaded manner, a slotted hole with the size of the outer diameter of the second locking bolt 10 is formed in the construction shackle 9, a first pin hole 11 is formed in the first locking bolt 8, a second pin hole 12 is formed in the second locking bolt 10, a self-locking pin 13 which penetrates through and extends to the outside of the first pin hole 11 and the second pin hole 12 is fixedly connected to the outside of the first locking bolt 8 and the second locking bolt 10, the appearance of the second pin hole 12 is circular, the inner diameter of the second pin hole 12 is equal to the outer diameter of a pillar at the bottom of the self-locking pin 13, the self-locking pin 13 consists of a solid ball head and two solid cylinders, the digital load weighing device of the power transmission line can effectively enhance the stability of the hanging point shackle 7 and the construction shackle 9 by arranging the first locking bolt 8 to fix the hanging point shackle 7 and then arranging the second locking bolt 10 to fix the construction shackle 9, the self-locking pin 13 is fixedly connected in the first pin hole 11 and the second pin hole 12 to effectively prevent the bolts in the hanging point shackle 7 and the construction shackle 9 from loosening and avoid falling off, the front side of the weighing device 1 and the right side of the display 4 are fixedly connected with the strain gauge 14, the strain gauge 14 is electrically connected with the working piece, the strain gauge 14 is electrically connected with the compensating piece, the number of the working piece and the compensating piece is two, and the two are electrically connected with each other, and the digital load weighing device of the power transmission line, through setting up the positive foil gage 14 of weighing device 1, can show the pulling force value of construction hanging point department through display 4, the rethread sets up the positive alarm 5 of weighing device 1, then through setting for early warning pulling force value, after the pulling force value that construction hanging point department received exceeded the early warning value of setting for, alarm 5 just can send the warning, warn constructor's attention, automatic alarm's effect has been reached, thereby the effectual too big and unwilling of pulling force value of hanging point department in the solution overhead transmission line work progress, influence the problem of constructor safety.
When the device is used, the Wheatstone bridge is suitable for detecting small changes of the resistor and measuring changes of the resistance of the strain gauge 14, the four single sheets are respectively arranged on four bridge arms, the initial resistance of each single sheet is R, the single sheet is in a bridge balance state, the output voltage is always zero no matter how much voltage is input, when stress changes and the elastic body deforms, the resistance of the working sheet is △ R, bridge balance is broken, corresponding output voltage is generated, meanwhile, in the process of strain measurement, temperature can also affect corresponding to the strain, the resistance of the strain gauge 14 changes △ R, at the moment, under the same temperature condition, the compensation sheets on the adjacent sides of the working sheet also generate the same resistor △ R, the resistance changes of the four bridge arms caused by the temperature are the same, therefore, the output voltage generated by the temperature changes is 0, and the output voltage of the whole circuit is only generated by the strain.
In conclusion, this transmission line digital display load weighing device through setting up the positive foil gage 14 of weighing device 1, can show the pulling force value of construction hanging point department through display 4, and rethread sets up the positive alarm 5 of weighing device 1, then through setting for early warning pulling force value, after the pulling force value that the construction hanging point department received exceeded the early warning value that sets for, alarm 5 just can send the warning, warns constructor's attention, has reached automatic alarm's effect.
And, this transmission line digital display load weighing device, through setting up the fixed point of hanging shackle 7 of first locking bolt 8, the rethread sets up the fixed construction shackle 9 of second locking bolt 10, can effectively strengthen the stability of hanging point shackle 7 and construction shackle 9, through the equal fixedly connected with self-locking round pin 13 in the inside that sets up first pinhole 11 and second pinhole 12, can effectively prevent to hang the bolt in the point shackle 7 and the construction shackle 9 not hard up, avoid appearing the condition of droing, thereby the effectual tension value of hanging point department is too big and is not aware in having solved the overhead transmission line work progress, influence constructor safety's problem.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.