CN218025069U - Electric pole holding torque difference limiter - Google Patents
Electric pole holding torque difference limiter Download PDFInfo
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- CN218025069U CN218025069U CN202221539762.5U CN202221539762U CN218025069U CN 218025069 U CN218025069 U CN 218025069U CN 202221539762 U CN202221539762 U CN 202221539762U CN 218025069 U CN218025069 U CN 218025069U
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- support rod
- limit switch
- pole
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Abstract
The utility model discloses a poor limiter of pole moment is embraced to electric power, include: the connecting seat is fixed on the rotary upper support; the supporting rod is arranged on the connecting seat; the limit switch is arranged at one end of the supporting rod, and the microswitch of the limit switch extends out of the supporting rod; and the collision block is arranged on the standard knot of the pole holding tower cap, is arranged relative to the limit switch, and is provided with a contact plate matched with the micro switch of the limit switch. The utility model discloses a bump piece and limit switch's cooperation, make limit switch's micro-gap switch action when the unbalance loading moment difference reaches or just exceeds electric power armful of pole moment difference definite value to trigger the warning.
Description
Technical Field
The utility model relates to an electric power armful of pole unbalance loading overload limiter specifically is an electric power armful of pole moment difference limiter.
Background
In recent years, with the rapid increase of national economy of China, the power industry is rapidly developed, the rapid development of the power transmission line iron tower industry is promoted, and the construction of a power transmission iron tower is vigorous. In the erection process of the transmission tower, the components of the transmission tower need to be hoisted by the electric holding pole, and the electric holding pole is used as hoisting equipment and widely applied to erection of the transmission tower. The electric pole often can appear big arm both sides because the difference of hoist and mount weight at the hoist and mount in-process, perhaps the big arm unbalance loading's of one side condition appears not the same time of hoist and mount range, will lead to holding the danger that the pole appears toppling when serious. How economy, safety, reasonable carry out the alarm output to the unbalance loading overload condition that appears when embracing the pole hoist and mount, remind the control personnel, hold the safe hoist and mount in-process of pole at electric power and play key effect.
The moment difference alarm limiter of the current electric holding pole mainly has two forms, one is electronic, the hoisting weight and the displacement amplitude of two sides of the large arm are measured through a pin shaft sensor and an amplitude sensor, and the difference value of the moment of the two sides of the large arm is obtained through formula conversion; one is that the unbalance moment of the pole is output by alarm through the disc type mechanical moment limiter to amplify the elastic deformation of the pole on the tower cap and then to trigger the micro switch.
The above technology has several technical disadvantages:
1. the problems of poor stability, high cost, small application range and strong installation and debugging speciality exist in the measurement of the weight and the displacement amplitude of the crane through the pin shaft sensor and the amplitude sensor;
elastic deformation generated on the main chord of the pole holding tower cap is amplified by the disc type mechanical moment limiter, and then the microswitch is triggered to carry out unbalance loading alarm output; in order to avoid influencing the final arm retracting and tower descending of the electric holding pole, two disc type mechanical moment limiters are required to be arranged on the inner sides of the standard sections of the tower caps, and the defect of difficulty in installation and debugging exists.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a structural design is reasonable, sensitivity is high, good reliability, and is small, the electric power that the installation and debugging is simple and convenient embraces the poor limiter of pole moment.
The utility model adopts the following technical proposal:
an electric derrick torque difference limiter comprising: the connecting seat is fixed on the rotary upper support; the supporting rod is arranged on the connecting seat; the limit switch is arranged at one end of the supporting rod, and the microswitch of the limit switch extends out of the supporting rod; and the collision block is arranged on the standard knot of the pole holding tower cap, is arranged relative to the limit switch, and is provided with a contact plate matched with the micro switch of the limit switch.
Preferably, the support rod includes: the support rod connecting plate is positioned at one end of the support rod and is connected with the connecting seat; the limit switch mounting plate is positioned at the other end of the support rod and is provided with a limit switch; and the rib plate is arranged between the limit switch mounting plate and the support rod.
Preferably, the support rod comprises two rib plates, and the rib plates are arranged on the support rod in a staggered mode.
Preferably, the two limit switches are arranged on the left side and the right side of one end of the supporting rod, and the side faces of the two limit switches are respectively provided with a collision block matched with the two limit switches.
Preferably, the connecting seat further comprises a reinforcing rib and a connecting seat connecting plate, the connecting seat connecting plate is connected with the supporting rod, and the reinforcing rib is located at the end part of the connecting seat.
Preferably, the pole holding tower cap further comprises an installation plate, wherein the installation plate is arranged on the pole holding tower cap standard knot, and a collision block is arranged on the installation plate.
Preferably, the strike includes an adjustment screw and a contact plate disposed on the adjustment screw.
Preferably, the supporting rod is further provided with a rainproof cover plate.
Compared with the prior art, the utility model has the advantages of it is following: the utility model discloses a bump piece and limit switch's cooperation, make limit switch's micro-gap switch action when the unbalance loading moment difference reaches or just exceeds electric power armful of pole moment difference definite value to trigger the warning. Meanwhile, the utility model has reasonable structural design, is arranged outside the tower cap of the electric holding pole, and does not influence the arm retracting tower at the final stage of the electric holding pole; the installation, disassembly and debugging are convenient, and the maintenance and debugging of constructors are convenient.
Drawings
Fig. 1 is a schematic structural diagram of a moment difference limiter.
Fig. 2 is a partially enlarged view of a portion a of fig. 1.
Fig. 3 is a partially enlarged view of portion B of fig. 1.
Fig. 4 is a top view of a moment difference limiter.
Fig. 5 is a schematic structural view of the support rod.
Fig. 6 is a cross-sectional view C-C of fig. 5.
Fig. 7 is a cross-sectional view taken along line D-D of fig. 5.
In the figure, a support rod 1, a rib plate 2, a support rod connecting plate 3, a connecting seat connecting plate 4, a connecting seat 5, a reinforcing rib 6, a collision block 7, a contact plate 7-1, an adjusting screw 7-2, a mounting plate 8, a limit switch mounting plate 9, a limit switch 10, a micro switch 10-1 and a rainproof cover plate 11.
Detailed Description
In order to facilitate understanding of the technical solution of the present invention, the following detailed description is made with reference to the accompanying drawings and specific embodiments.
Example 1
As shown in fig. 1-2, an electric pole grip torque difference limiter includes:
the connecting seat 5 is fixed on the rotary upper support;
the support rod 1 is arranged on the connecting seat 5 through a bolt;
the limit switch 10 is arranged at one end of the support rod 1, and the microswitch 10-1 extends out of the support rod 1; wherein, when the microswitch 10-1 acts, an alarm is triggered;
the collision block 7 is arranged on the pole holding tower cap standard knot, is arranged relative to the limit switch 10, and is provided with a contact plate 7-1 matched with the micro switch 10-1 of the limit switch 10;
the utility model discloses a bump 7 and limit switch 10's cooperation, make limit switch's micro-gap switch 10-1 action when the unbalance loading moment difference reaches or just exceeds electric power armful of pole moment difference definite value to trigger the warning.
In the embodiment, the pole holding tower cap further comprises an installation plate 8, the installation plate 8 is arranged on the pole holding tower cap standard knot, a collision block 7 is arranged on the installation plate 8, and the collision block 7 comprises an adjusting screw 7-2 and a contact plate 7-1 arranged on the adjusting screw 7-2.
Specifically, when the pole deforms due to unbalance loading, the collision block 7 generates horizontal displacement towards one side of the unbalance loading weight, and the distance between the adjusting screw 7-2 and the limit switch 10 is adjusted, so that the micro switch 10-1 in the limit switch 10 acts when the unbalance loading moment difference value reaches or just exceeds the electric pole moment difference fixed value, and an alarm is triggered.
The mounting plate 8 is provided with two threaded holes, the collision block 7 is welded by an adjusting screw 7-2 and a contact plate 7-1, and the collision block 7 is connected with the mounting plate 8 through the adjusting screw 7-2 and a screw cap.
As an embodiment, the support bar 1 comprises:
the brace rod connecting plate 3 is positioned at one end of the brace rod 1 and is connected with the connecting seat 5;
a limit switch mounting plate 9 which is positioned at the other end of the support rod 1 and is provided with a limit switch 10;
and the rib plate 2 is arranged between the limit switch mounting plate 9 and the support rod 1.
In the embodiment, the support rod 1 is a hollow square steel tube, and in order to ensure the strength and the levelness of the limit switch mounting plate 9, a rib plate 2 is arranged between the hollow square steel tube and the limit switch mounting plate 9;
in this embodiment, the number of the rib plates 2 is two, and the rib plates 2 are arranged on the support rod 1 in a staggered manner to support the limit switch mounting plate 9 of the support rod 1.
In this embodiment, the two limit switches 10 are disposed at the left and right sides of one end of the support rod 1, and the side surfaces of the two limit switches 10 are respectively provided with a collision block 7 matched with the side surfaces.
In this embodiment, the connecting seat 5 further includes a reinforcing rib 6 and a connecting seat connecting plate 4, the connecting seat connecting plate 4 is connected to the support rod 1, and the reinforcing rib 6 is located at an end of the connecting seat 5. Connecting seat 5 adopts the hollow square steel pipe, for guaranteeing connecting seat 5 intensity, connecting seat 5 tip is provided with strengthening rib 6.
Preferably, the supporting rod 1 is further provided with a rain-proof cover plate 11.
After the device is installed, when unbalanced moment on one side of an electric pole reaches a rated value due to different hoisting weight and hoisting amplitude of the electric pole, the pole-holding tower cap is stressed to the unbalance loading side to deform, and because the supporting rod 1 is fixed on the pole-holding rotary upper support through the connecting seat 5 in the embodiment, the deformation of the rotary upper support to the unbalance loading side is far smaller than that of the tower cap, the mounting plate 8 welded on the standard section of the tower cap generates transverse displacement to the unbalance loading side, so that the collision block 7 on the mounting plate 8 on the side is driven to displace towards the limit switch 10 arranged on the supporting rod 1, and when the unbalance loading reaches a rated preset value, the micro switch 10-1 in the limit switch 10 on the side is just caused to act, and then the alarm device is triggered; the utility model discloses the device is furnished with two limit switch 10, can hold pole big arm both sides to electric power and carry out the alarm output of maximum unbalanced moment respectively.
The above is only the preferred embodiment of the present invention, and the protection scope of the present invention is defined by the scope defined by the claims, and a plurality of modifications and decorations made by those skilled in the art without departing from the spirit and scope of the present invention should also be regarded as the protection scope of the present invention.
Claims (8)
1. The utility model provides an electric power armful of pole moment difference limiter which characterized in that includes:
the connecting seat (5) is fixed on the rotary upper support;
the support rod (1) is arranged on the connecting seat (5);
the limit switch (10) is arranged at one end of the support rod (1), and the microswitch (10-1) extends out of the support rod (1);
the collision block (7) is arranged on the pole embracing tower cap standard knot, is arranged relative to the limit switch (10), and is provided with a contact plate (7-1) matched with the micro switch (10-1) of the limit switch (10).
2. An electric derrick torque difference limiter according to claim 1, characterised in that the support rod (1) comprises:
the support rod connecting plate (3) is positioned at one end of the support rod (1) and is connected with the connecting seat (5);
a limit switch mounting plate (9) which is positioned at the other end of the support rod (1) and is provided with a limit switch (10);
and the rib plate (2) is arranged between the limit switch mounting plate (9) and the support rod (1).
3. The electric derrick moment difference limiter according to claim 1, characterized by comprising two rib plates (2), wherein the rib plates (2) are arranged on the support rod (1) in a staggered manner.
4. The electric derrick moment difference limiter according to claim 1, characterized in that the two limit switches (10) are arranged at the left and right sides of one end of the support rod (1), and the side surfaces of the two limit switches (10) are respectively provided with a collision block (7) matched with the two limit switches.
5. The torque difference limiter of an electric pole according to claim 1, wherein the connecting base (5) further comprises a reinforcing rib (6) and a connecting base connecting plate (4), the connecting base connecting plate (4) is connected with the support rod (1), and the reinforcing rib (6) is located at the end of the connecting base (5).
6. The electric derrick moment difference limiter according to claim 1, further comprising a mounting plate (8), wherein the mounting plate (8) is arranged on a derrick tower cap standard knot, and the mounting plate (8) is provided with a collision block (7).
7. An electric pole holding torque difference limiter according to claim 1, characterized in that the said bump block (7) comprises an adjusting screw (7-2) and a contact plate (7-1) arranged on the adjusting screw (7-2).
8. The electric derrick moment difference limiter according to claim 1, characterized in that a rainproof cover plate (11) is further arranged on the support rod (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539762.5U CN218025069U (en) | 2022-06-20 | 2022-06-20 | Electric pole holding torque difference limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221539762.5U CN218025069U (en) | 2022-06-20 | 2022-06-20 | Electric pole holding torque difference limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218025069U true CN218025069U (en) | 2022-12-13 |
Family
ID=84376413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221539762.5U Active CN218025069U (en) | 2022-06-20 | 2022-06-20 | Electric pole holding torque difference limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218025069U (en) |
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2022
- 2022-06-20 CN CN202221539762.5U patent/CN218025069U/en active Active
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