CN218841628U - Portable lifting device for power transmission live working - Google Patents
Portable lifting device for power transmission live working Download PDFInfo
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- CN218841628U CN218841628U CN202223184820.XU CN202223184820U CN218841628U CN 218841628 U CN218841628 U CN 218841628U CN 202223184820 U CN202223184820 U CN 202223184820U CN 218841628 U CN218841628 U CN 218841628U
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- lifting device
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Abstract
A portable lifting device for power transmission live working comprises a machine shell, wherein a group of gear reduction mechanisms are arranged in the machine shell, and driving shafts of the gear reduction mechanisms penetrate out of one side of the machine shell and are provided with hand wheels; the outer end of the driving shaft is in a hexagonal column shape and is externally connected with an electric driving device; a rope twisting wheel is arranged on a driven shaft of the gear reduction mechanism on the other side of the shell, a circle of trapezoidal groove is arranged on the outer edge of the rope twisting wheel, rectangular bosses which are arranged along the radial direction are uniformly distributed on two sides in the trapezoidal groove along the circumferential direction, and the rectangular bosses on the two sides are arranged in a staggered manner; a traction rope is wound in the trapezoidal groove, and two ends of the traction rope respectively penetrate out of the top of the other side of the shell; the lower part of the other side of the shell is connected with a U-shaped hook for connecting a safety belt of an operator; the lifting device is also provided with the electric driving device. The device convenient to carry, easy operation can alleviate operation personnel's intensity of labour, improve work efficiency and security.
Description
Technical Field
The utility model relates to a transmission line operation technical field, in particular to portable elevating gear of transmission of electricity live working.
Background
At present, during construction and maintenance on a 220kV power transmission line, an operator is often required to climb a line tower to enter a strong electric field for processing problems in an electrified way, in the past, the operator is usually hung on the tower or the line by using a rope ladder and climbs upwards by using the rope ladder, and the rope ladder often shakes, stretches and the like in use, so that the operator is difficult to control the body balance, consumes a large amount of physical strength, generates a sense of fear, and increases the labor intensity and the operation time of the operator; meanwhile, the operation safety is poor, and time and labor are wasted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a portable lifting device of transmission of electricity live working that convenient to carry, easy operation can alleviate operation personnel's intensity of labour, improves work efficiency and security is provided.
In order to solve the technical problem, the utility model adopts the following technical scheme: a portable lifting device for power transmission live working comprises a shell, wherein a group of gear reduction mechanisms are arranged in the shell, and driving shafts of the gear reduction mechanisms penetrate out of one side of the shell and are provided with hand wheels for manually controlling the lifting of the lifting device; the outer end of the driving shaft is in a hexagonal column shape and is externally connected with an electric driving device;
a rope twisting wheel is arranged on a driven shaft of the gear reduction mechanism on the other side of the shell, a circle of trapezoidal groove is arranged on the outer edge of the rope twisting wheel, rectangular bosses which are arranged along the radial direction are uniformly distributed on two sides in the trapezoidal groove along the circumferential direction, and the rectangular bosses on the two sides are arranged in a staggered manner; a traction rope is wound in the trapezoidal groove, and two ends of the traction rope respectively penetrate out of the top of the other side of the shell; the lower part of the other side of the shell is connected with a U-shaped hook for connecting a safety belt of an operator;
the lifting device is also provided with the electric driving device which is used for being connected with a driving shaft of the gear speed reducing mechanism so as to drive the lifting device to automatically ascend.
Preferably, a rotatable gear shaft is arranged on one side of a large gear of the gear reduction mechanism in the casing, the gear shaft is meshed with the large gear, centrifugal brake wheels are respectively arranged on the gear shaft and the driving shaft, and the centrifugal brake wheels are in clearance fit with the inner wall of a corresponding mounting hole in the casing and used for realizing buffer braking when the lifting device descends.
Preferably, a limiting gland is connected to the outer side of the rope twisting wheel on the casing, two rotatable shaft sleeves are symmetrically arranged between the limiting gland and the casing, and two ends of the traction rope penetrate through a boss located at the top of the other side of the casing and the two shaft sleeves respectively so as to reduce abrasion to the traction rope.
Preferably, a rope pressing mechanism is arranged on the limiting gland and used for clamping the traction rope to realize the positioning of the lifting device.
Preferably, the rope pressing mechanism comprises a base, two rope pressing wheels are rotatably mounted on the base in parallel, the outer edges of the rope pressing wheels are D-shaped, teeth are evenly distributed on the outer edges of the two rope pressing wheels on the opposite sides along the circumference, and torsion springs are respectively arranged between the rope pressing wheels and the base to enable the two rope pressing wheels to mutually abut against each other so as to clamp the traction rope.
Preferably, a guide rod is arranged on one side, located on the rope pressing mechanism, of the limiting pressing cover, and the two ends of the guide rod are in an inward-rolling arc shape and used for bypassing the traction rope when the lifting device is positioned through the rope pressing mechanism.
The utility model discloses following beneficial effect has:
1. convenient to carry, easy operation, install haulage rope and back protection rope one end during the use on the shaft tower main material suitable position, with this elevating gear through the U type hook on operation personnel's the safety belt, the handheld electric drive device of operation personnel blocks gear reduction mechanism's driving shaft, it is rotatory to drive the rope twisting wheel through gear reduction mechanism, make the rope twisting wheel roll along the haulage rope, alright drive this elevating gear and operation personnel rise along the haulage rope together, can alleviate operation personnel's intensity of labour, improve work efficiency and security.
2. Because the outer edge of the rope twisting wheel is provided with the circle of trapezoidal groove, rectangular bosses which are arranged along the radial direction are uniformly distributed on two sides in the trapezoidal groove along the circumferential direction respectively, and the rectangular bosses on the two sides are arranged in a staggered manner, the traction rope can be clamped when the rope twisting wheel rotates, so that the lifting device can be driven to ascend along the traction rope together with operating personnel when the rope twisting wheel rotates, the phenomenon of skidding does not occur, and the operation safety is ensured.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a right side view of FIG. 1;
FIG. 4 isbase:Sub>A sectional view A-A of FIG. 2;
FIG. 5 is a schematic structural view of the centrifugal brake wheel of the present invention;
fig. 6 is a sectional view B-B of fig. 5.
Fig. 7 is a schematic structural view of the rope twisting wheel of the present invention.
In the figure: the brake block comprises a machine shell 1, a left shell 101, a right shell 102, a boss 103, a shaft sleeve 2, a base 3, a rope pressing wheel 4, a guide rod 5, a hook 6, a driving shaft 7, a hand wheel 8, a centrifugal brake wheel 9, a base 901, a brake shoe 902, a tension spring 903, a brake block 904, a waist-shaped boss 905, a gear shaft 10, a traction rope 11, a limiting gland 12, a large gear 13, a driven shaft 14, a rope twisting wheel 15 and an end cover 16.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1-7, the utility model relates to a portable lifting device for power transmission live working, including casing 1, this casing 1 is formed by left casing 101 and right casing 102 through the screw connection, is equipped with a set of gear reduction mechanism in casing 1, this gear reduction mechanism is by driving shaft 7 and driven shaft 14 installed in casing 1 through the bearing respectively to and install respectively pinion on driving shaft 7 and gear wheel 13 on the driven shaft 14 and constitute, pinion and driving shaft 7 structure as an organic whole and with gear wheel 13 meshing, and the drive ratio is 20. The pinion and the gearwheel 13 are both positioned in the right housing 102, and the driving shaft 7 penetrates out of an end cover 16 connected to one side of the casing 1 and is provided with a hand wheel 8 for manually controlling the lifting of the lifting device. The outer end of the driving shaft 7 is in a hexagonal column shape so as to be convenient for being externally connected with an electric driving device.
The driven shaft 14 penetrates out of the other side of the machine shell 1, a rope twisting wheel 15 is arranged on the driven shaft 14 and located on the other side of the machine shell 1, a circle of trapezoidal groove 1501 is formed in the outer edge of the rope twisting wheel 15, a plurality of rectangular bosses 1502 arranged along the radial direction are uniformly distributed on two sides in the trapezoidal groove along the circumferential direction, and the rectangular bosses 1502 on the two sides are arranged in a staggered mode; the traction rope 11 is wound in the trapezoid groove, the traction rope 11 is clamped in the trapezoid groove under the action of the rectangular boss, and two ends of the traction rope 11 penetrate out of the top of the other side of the machine shell 1 respectively.
A rotatable gear shaft 10 is arranged on one side of a large gear 13 of the gear reduction mechanism in the machine shell 1, the gear shaft 10 is meshed with the large gear 13 and is respectively positioned on two sides of the large gear 13 with the small gear, centrifugal brake wheels 9 are respectively fixed in left shells 101 on the gear shaft 10 and the driving shaft 7, and the centrifugal brake wheels 9 are in clearance fit with the inner walls of corresponding mounting holes in the left shells 101 and are used for realizing buffer braking when the lifting device descends.
The centrifugal brake wheel 9 comprises a base 901, the base is clamped on a corresponding gear shaft 10 or a corresponding driving shaft 7 through a special-shaped hole in the center of the base 901, two brake shoes 902 are symmetrically hinged on the base 901 through pin shafts respectively, a tension spring 903 is connected between the corresponding free ends of the two brake shoes 902, and brake blocks 904 are fixed on the outer edges of the two brake shoes 902 respectively and used for outwards turning under the action of centrifugal force to rub with corresponding mounting holes on the left shell 101, so that buffer braking is realized. Waist-shaped bosses 905 are respectively arranged on two sides of the base 901, and the two brake shoes 902 lean against two ends of the waist-shaped bosses 905 under the action of the tension springs 903.
Four bosses 103 are arranged on the periphery of the twisting rope wheel 15 on the other side of the machine shell 1, a limiting gland 12 is connected with the four bosses 103 in a supporting mode, the limiting gland 12 is arranged on the outer side of the twisting rope wheel 15 and fixed on the bosses 103 through screws, two rotatable shaft sleeves 2 are symmetrically arranged on two sides of one boss 103 located at the top between the limiting gland 12 and the machine shell 1 through pin shafts, two ends of the traction rope 11 penetrate out of the bosses 103 located at the top of the other side of the machine shell 1 and the two shaft sleeves 2 respectively to reduce abrasion to the traction rope 11, and the wrap angle of the traction rope 11 around the twisting rope wheel 15 is enabled to be maximum.
And a rope pressing mechanism is arranged on the limiting gland 12 and used for clamping the traction rope 11 to realize the positioning of the lifting device.
The rope pressing mechanism comprises a base 3, two core pipes are arranged on the base 3, two rotatable rope pressing wheels 4 are installed through the two core pipes in a parallel sleeved mode, the outer edges of the rope pressing wheels 4 are D-shaped, teeth are evenly distributed on the outer edges of the two opposite sides of the rope pressing wheels 4 along the circumference, a torsion spring (not shown in the figure) is arranged between each rope pressing wheel 4 and the base 3, two ends of the torsion spring are clamped on the base 3 and the rope pressing wheels 4 respectively, the two rope pressing wheels 4 are enabled to rotate oppositely and then are abutted against each other, and accordingly the traction rope 11 is clamped.
A guide rod 5 is fixed on one side of the limiting gland 12 below the rope pressing mechanism through a screw, and the two ends of the guide rod 5 are arc-shaped with downward inward rolling and used for bypassing the traction rope 11 when the lifting device is positioned through the rope pressing mechanism.
A U-shaped hook 6 is fixedly connected to a boss 103 at the lower part of the other side of the casing 1 by a screw, for connecting the lifting device to a safety belt of an operator.
The lifting device is also provided with an electric driving device (not shown in the figure), and the electric driving device is a high-power electric hand drill and is used for being connected with a driving shaft 7 of the gear reducing mechanism, so that the lifting device is driven to automatically ascend.
When the tower is used, a site operator carries one end of the traction rope 11 and one end of the back protection rope to climb the tower to a cross arm above a line to be operated, and fixes the traction rope 11 and one end of the back protection rope to a proper position of a main material of the tower; equipotential operation personnel hang this elevating gear on its safety belt through U type couple 6 and main lock, the haulage rope 11 other end falls subaerial, then handheld electric hand drill blocks 7 outer ends of driving shaft of gear reduction mechanism and presses the switch, electric hand drill passes through gear reduction mechanism and drives to twist with the fingers 15 rotations of rope wheel, make to twist with the fingers 15 rolls along haulage rope 11, alright drive this elevating gear even equal operation personnel rise along haulage rope 11, when rising to the operation position, loosen electric hand drill switch and lift off electric hand drill, handle hand wheel 8 simultaneously, lift off behind the electric hand drill press from both sides after the part is walked around by guide bar 5 with haulage rope 11 corresponds casing 1 of its other end and press from both sides at two
Between the rope pressing wheels 4, the lifting device can be fixed on the traction rope 11, thereby fixing the equipotential operating personnel for operation.
After the operation, pull rope 11 between two pressure rope wheels 4 is picked off, and the dead weight of the operator can drive the lifting device to slide down along pull rope 11, and in the process of sliding down, brake shoes 902 of two centrifugal brake wheels 9 are driven to turn outwards to rub against the inner wall of the corresponding mounting hole on left shell 101 through high-speed rotation of gear shaft 10 and driving shaft 7, so that the buffer brake during the descending of the lifting device can be realized, the descending speed of the operator is reduced, and the safety of the descending is ensured.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides a portable elevating gear of transmission of electricity live working, includes the casing, characterized by: a group of gear reduction mechanisms are arranged in the shell, and driving shafts of the gear reduction mechanisms penetrate out of one side of the shell and are provided with hand wheels for manually controlling the lifting of the lifting device; the outer end of the driving shaft is in a hexagonal column shape and is externally connected with an electric driving device;
a rope twisting wheel is arranged on a driven shaft of the gear reduction mechanism on the other side of the shell, a circle of trapezoidal groove is arranged on the outer edge of the rope twisting wheel, rectangular bosses which are arranged along the radial direction are uniformly distributed on two sides in the trapezoidal groove along the circumferential direction, and the rectangular bosses on the two sides are arranged in a staggered manner; a traction rope is wound in the trapezoidal groove, and two ends of the traction rope respectively penetrate out of the top of the other side of the shell;
the lower part of the other side of the shell is connected with a U-shaped hook for connecting a safety belt of an operator; the lifting device is also provided with the electric driving device which is used for being connected with a driving shaft of the gear speed reducing mechanism so as to drive the lifting device to automatically ascend.
2. The portable lifting device for live working according to claim 1, wherein: a rotatable gear shaft is arranged on one side, located on the large gear of the gear reduction mechanism, of the casing, the gear shaft is meshed with the large gear, centrifugal brake wheels are arranged on the gear shaft and the driving shaft respectively, and the centrifugal brake wheels are in clearance fit with the inner wall of a corresponding mounting hole in the casing and used for achieving buffer braking when the lifting device descends.
3. The portable lifting device for power transmission live working according to claim 1, wherein: the outer side of the rope twisting wheel on the shell is connected with a limiting gland, two rotatable shaft sleeves are symmetrically arranged between the limiting gland and the shell, and two ends of the traction rope penetrate out of the boss at the top of the other side of the shell and the two shaft sleeves respectively to reduce abrasion to the traction rope.
4. The portable lifting device for live working according to claim 3, wherein: and a rope pressing mechanism is arranged on the limiting gland and is used for clamping the traction rope to realize the positioning of the lifting device.
5. The portable lifting device for live working according to claim 4, wherein: the rope pressing mechanism comprises a base, two rope pressing wheels are rotatably mounted on the base in parallel, the outer edges of the rope pressing wheels are D-shaped, teeth are evenly distributed on the outer edges of the two rope pressing wheels on the opposite sides along the circumference, and torsion springs are respectively arranged between the rope pressing wheels and the base to enable the two rope pressing wheels to mutually abut against each other so as to clamp the traction rope.
6. The portable lifting device for live working according to claim 4, wherein: a guide rod is arranged on one side, located on the rope pressing mechanism, of the limiting gland, and the two ends of the guide rod are in an arc shape with an inner coil and used for bypassing a traction rope when the lifting device is positioned through the rope pressing mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223184820.XU CN218841628U (en) | 2022-11-30 | 2022-11-30 | Portable lifting device for power transmission live working |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223184820.XU CN218841628U (en) | 2022-11-30 | 2022-11-30 | Portable lifting device for power transmission live working |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218841628U true CN218841628U (en) | 2023-04-11 |
Family
ID=87305723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223184820.XU Active CN218841628U (en) | 2022-11-30 | 2022-11-30 | Portable lifting device for power transmission live working |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218841628U (en) |
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2022
- 2022-11-30 CN CN202223184820.XU patent/CN218841628U/en active Active
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