An automatic installation locking device for a utility pole cross arm

Abstract

The utility model discloses a kind of automatic installation locking devices of electric pole cross arm, it is related to electric power construction equipment, to solve the greater stroke required horizontal displacement when two cross arms are converged, affect efficiency and the overall compactness of equipment, its technical scheme main point is: a kind of automatic installation locking devices of electric pole cross arm, including first cross arm frame and second cross arm frame, first cross arm frame includes first platform, swing propulsion component and first bracket;Second cross arm frame includes second platform, horizontal propulsion component and second bracket, two impact wrenches are installed in second bracket, two impact wrenches are respectively aligned in two through holes.The utility model discloses a kind of automatic installation locking devices of electric pole cross arm, the first bracket of lifting first section bar increases a swing action, so that two screw rods are in the state of oblique and rise in carrying process, effectively prevent the occurrence of interference problem due to the thicker lower end of electric pole.

Description

Technical Field

[0001] This utility model relates to power construction equipment, and more specifically, it relates to an automated installation and locking device for crossarms of utility poles. Background Technology

[0002] Installing crossarms on utility poles is a technical task in electrical engineering. Crossarms are used to support power lines. Traditional crossarm installation methods require workers to climb and install them manually, which is inconvenient and poses safety hazards.

[0003] To achieve automated installation of crossarms, Chinese Patent Publication CN118461982A discloses an electric lifting robot for installing crossarms on utility poles. Its key technical features include: an opening and closing platform frame for fitting over the outside of the utility pole; a first crossarm support slidably connected to the opening and closing platform frame; a climbing mechanism mounted on the opening and closing platform frame, capable of moving the platform frame along the axial direction of the utility pole; a sliding mechanism mounted on the opening and closing platform frame, capable of moving an electric wrench towards the area where the crossarm is placed on a second crossarm support; a second crossarm support directly opposite the first crossarm support, slidably connected to the opening and closing platform frame; an electric wrench for tightening a nut that engages with a screw, the screw connecting the two crossarms; and a control module for controlling the operation of the climbing mechanism, the sliding mechanism, and the electric wrench.

[0004] In the above technical solution, both crossarm supports are moved horizontally to push the two crossarms together. However, in actual tests, it was found that since the pole is generally thicker at the bottom and thinner at the top, in order to avoid interference between the two screws and the thicker part of the pole, the two screws need to be far away from the pole in the initial state. This results in a larger horizontal displacement when the two crossarms are brought together, which affects efficiency and the overall compactness of the equipment. Therefore, a new solution is needed to solve this problem. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an automated installation and locking device for utility pole crossarms. The first bracket supporting the first profile adds a swinging motion, so that the two screws are tilted and raised during transportation, effectively preventing interference problems caused by the thicker lower end of the pole.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: an automated installation and locking device for a utility pole crossarm, wherein the crossarm to be installed includes a first profile and a second profile, the first profile is pre-fixed with two screws, and the second profile has through holes for the insertion of the two screws. The installation and locking device includes a first crossarm frame and a second crossarm frame. The first crossarm frame includes a first platform, a swing propulsion assembly installed on the first platform, and a first bracket driven by the swing propulsion assembly. The first bracket is used to support the first profile. The second crossarm frame includes a second platform, a horizontal propulsion assembly installed on the second platform, and a second bracket driven by the horizontal propulsion assembly. The second bracket is used to support the second profile. The second bracket is equipped with two impact wrenches, and the two impact wrenches are respectively aligned with two through holes.

[0007] By adopting the above technical solution, in normal use, the operator places the first profile on the first bracket on the ground and inserts two fixed screws, places the second profile on the second bracket, and installs two nuts on the output ends of two impact wrenches. After completing the ground preparation, the pole-climbing robot carries the application. In the initial state of transport, the swing propulsion component drives the first bracket to a backward and vertically upward state. In this state, the two screws are tilted and raised, so there is no interference problem. When the pole-climbing robot carries the application up the pole to a predetermined height, the swing propulsion component drives the first bracket to swing downward until the two screws are perpendicular to the central axis of the pole, and then pushes the first... The bracket is pushed forward by the horizontal propulsion component until the first profile is pressed against the pole, and the second bracket is pushed forward until the second profile is pressed against the pole. In this state, the two screws pass through the through holes and are inserted into the output ends of the two impact wrenches. The two impact wrenches tighten the pre-placed nuts, thus completing the automatic installation and locking of the crossarm. After installation, the first bracket is driven to reset by the swing propulsion component, and the pole-climbing robot can then lower the crossarm. In summary, compared with the prior art, the first bracket that supports the first profile adds a swinging motion, so that the two screws are tilted and raised during transportation, effectively preventing interference problems caused by the thicker lower end of the pole.

[0008] The present invention is further configured such that: the swing propulsion assembly includes a first assembly plate fixed to a first platform, a first slide mounted on the first assembly plate, a swing shaft rotatably mounted on the first slide, and a swing guide wall for guiding the swing shaft; the first assembly plate is provided with a servo screw mechanism for applying linear propulsion force to the first slide; eccentric blocks are provided at both ends of the swing shaft, the eccentric blocks are provided with eccentric shafts, the swing guide wall is provided with swing guide grooves for the eccentric shafts to be embedded, the swing guide grooves having an inclined section and a horizontal section; the first bracket is fixed to the swing shaft.

[0009] The present invention is further configured such that: the first slide has two bearing seats opposite each other, the bearing seats are fixed with oilless bearings, and the oilless bearings are rotatably sleeved on the swing shaft.

[0010] The present invention is further configured such that: the first bracket includes a first spacing extension plate with clamping blocks fixed to the swing shaft, and two upper hook limiting blocks installed at both ends of the first spacing extension plate.

[0011] The present invention is further configured such that: the horizontal propulsion assembly includes a second assembly plate fixed to the second platform, a second slide table slidably mounted on the second assembly plate, and a servo screw mechanism for applying linear propulsion force to the second slide table.

[0012] The present invention is further configured such that: the servo screw mechanism includes a servo motor, a reducer connected to the servo motor, a screw connected to the output end of the reducer, and a threaded sleeve that engages with the screw thread, the threaded sleeve being fixed to a first slide or a second slide.

[0013] The present invention is further configured such that: two optical axes are horizontally fixed on the second slide table, and the second bracket is fixedly installed at the front end of the two optical axes; the two optical axes are slidably connected to a spring feed plate, the two impact wrenches are fixedly installed on the spring feed plate, and a compression spring is connected to the rear end face of the spring feed plate.

[0014] The present invention is further configured such that: the second bracket includes a second spacing extension plate fixed to the two optical axes, and two horizontal clamping limiting blocks installed at both ends of the second spacing extension plate.

[0015] The present invention is further configured such that: the second assembly plate is fixed with two L-shaped brackets, the L-shaped brackets are longitudinally adjustable and equipped with wheel frames, the wheel frames are rotatably connected to support wheels, and the two support wheels are respectively supported on the corresponding optical axes.

[0016] In summary, this utility model has the following beneficial effects: the first bracket supporting the first profile adds a swinging motion, so that the two screws are tilted and raised during transportation, effectively preventing interference caused by the thicker lower end of the pole; through the cooperation of the eccentric block, eccentric shaft, and swing guide groove, the technical requirements of swinging and horizontal propulsion by a single power source are achieved, with the technical effects of simple structure and convenient control; the orientation of the upper hook limiting block is limited, thereby ensuring that the first profile can be stably supported under different angle conditions; the elastic potential energy is released by the compression spring to push the elastic feed plate, thereby ensuring that the pressure of the impact wrench is maintained when screwing in the nut; the orientation of the two horizontal clamp limiting blocks is limited, thereby ensuring that the second bracket can only perform horizontal displacement and reset, thus ensuring that the output end of the impact wrench can be smoothly separated from the nut; on the one hand, it provides support for the optical axis, and on the other hand, it limits the forward push distance of the elastic feed plate, that is, limits the depth to which the nut is screwed into the screw. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this application;

[0018] Figure 2 This is a schematic diagram of the assembly of the crossbar in this application;

[0019] Figure 3 This is a structural schematic diagram of the first crossbar of this application;

[0020] Figure 4 This is a structural schematic diagram of the second horizontal stretcher in this application.

[0021] Figure Descriptions: 11. First profile; 12. Second profile; 13. Screw; 14. Through hole; 21. First crossbeam; 22. Second crossbeam; 23. First platform; 24. First bracket; 25. Second platform; 26. Second bracket; 27. Impact wrench; 28. First assembly plate; 29. ​​First slide; 30. Swing shaft; 31. Swing guide wall; 32. Eccentric block; 32. Eccentric shaft; 33. Swing guide groove 34. Bearing housing; 35. Oil-free bearing; 36. First spacing extension plate; 37. Upper hook limiting block; 38. Second assembly plate; 39. Second slide table; 40. Servo motor; 41. Reducer; 42. Lead screw; 43. Threaded sleeve; 44. Optical shaft; 45. Elastic feed plate; 46. Compression spring; 47. Second spacing extension plate; 48. Horizontal clamp limiting block; 49. L-shaped bracket; 50. Wheel frame; 51. Support wheel. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings.

[0023] An automated installation and locking device for utility pole crossarms, such as Figure 2As shown, the crossbeam to be installed includes a first profile 11 and a second profile 12. The first profile 11 has two pre-fixed screws 13, and the second profile 12 has through holes 14 for inserting the two screws 13. Figure 1 , Figure 2 As shown, the installation locking device includes a first horizontal stretcher 21 and a second horizontal stretcher 22. The first horizontal stretcher 21 includes a first platform 23, a swing propulsion assembly installed on the first platform 23, and a first bracket 24 driven by the swing propulsion assembly. The first bracket 24 is used to support the first profile 11. The second horizontal stretcher 22 includes a second platform 25, a horizontal propulsion assembly installed on the second platform 25, and a second bracket 26 driven by the horizontal propulsion assembly. The second bracket 26 is used to support the second profile 12. The second bracket 26 is equipped with two impact wrenches 27, which are respectively aligned with two through holes 14.

[0024] In normal use, the operator places the first profile 11 onto the first bracket 24 on the ground and inserts two fixing screws 13. The second profile 12 is then placed onto the second bracket 26, and two nuts are attached to the output ends of two impact wrenches 27. After ground preparation, the application is transported by a pole-climbing robot. In the initial transport state, the swing propulsion component drives the first bracket 24 to a backward and vertically upward position. In this state, the two screws 13 are tilted and raised, thus eliminating interference. When the pole-climbing robot carries the application up the pole to a predetermined height, the swing propulsion component drives the first bracket 24 to swing 60°. At this time, the two screws 13 are perpendicular to the central axis of the pole, and then the first bracket 24 is pushed until the second bracket 26 reaches the second bracket 27. A profile 11 is pressed against the pole, and the second bracket 26 is pushed forward by the horizontal propulsion component until the second profile 12 is pressed against the pole. In this state, the two screws 13 pass through the through holes 14 and are inserted into the output ends of the two impact wrenches 27. The two impact wrenches 27 tighten the pre-placed nuts, thus completing the automatic installation and locking of the crossarm. After installation, the first bracket 24 is driven to reset by the swing propulsion component, and the application can be lowered by the pole climbing robot. In summary, compared with the prior art, the first bracket 24 that supports the first profile 11 adds a swing action, so that the two screws 13 are tilted and raised during the transportation process, effectively preventing interference problems caused by the thicker lower end of the pole.

[0025] The specific structure of the oscillating propulsion component is as follows: Figure 3As shown, the swing propulsion assembly includes a first assembly plate 28 fixed to the first platform 23, a first slide 29 slidably mounted on the first assembly plate 28, a swing shaft 30 rotatably mounted on the first slide 29, and a swing guide wall 31 for guiding the swing shaft 30; the first assembly plate 28 is provided with a servo screw mechanism for applying linear propulsion force to the first slide 29; eccentric blocks 321 are provided at both ends of the swing shaft 30, and eccentric shafts 32 are provided on the eccentric blocks 321; the swing guide wall 31 is provided with a swing guide groove 33 for the eccentric shaft 32 to be embedded in, the swing guide groove 33 has an inclined section and a horizontal section, and a first bracket 24 is fixed to the swing shaft 30.

[0026] The specific working process of the swing propulsion assembly is as follows: In the initial state, the eccentric shaft 32 is at the bottom of the inclined section of the swing guide groove 33. Under the constraint of the swing guide groove 33, the eccentric block 321 causes the swing shaft 30 and the first bracket 24 to tilt upward at 60°, so that the screw 13 can effectively avoid the pole. When the servo screw mechanism pushes the first slide 29 forward, the eccentric shaft 32 moves along the inclined section of the swing guide groove 33, and the swing shaft 30, together with the first bracket 24, swings downward. The servo screw mechanism continues to push the first slide 29 forward, and the eccentric shaft 32 moves along the horizontal section of the swing guide groove 33. In this state, the first bracket 24 is restricted to remain horizontal, thereby ensuring that the two screws 13 are aligned and smoothly inserted into the two through holes 14. In summary, this application achieves the technical requirements of swing and horizontal propulsion by a single power source through the cooperation of the eccentric block 321, the eccentric shaft 32, and the swing guide groove 33, and has the technical effects of simple structure and convenient control.

[0027] It should be noted that in other embodiments, a separate power source, such as a self-locking motor or a rotary cylinder, can be provided for the swinging motion.

[0028] The swing shaft 30 is assembled to the first slide 29 in the following manner, as follows: Figure 3 As shown, the first slide 29 has two bearing seats 34 arranged opposite each other. The bearing seats 34 are fixed with oilless bearings 35. The oilless bearings 35 are rotatably sleeved on the swing shaft 30, thereby reducing the frictional resistance experienced by the swing shaft 30 when it swings.

[0029] The specific structure of the first bracket 24 is as follows: Figure 3 As shown, the first bracket 24 includes a first spacing expansion plate 36 with clamps fixed to the swing shaft 30, and two upper hook limiting blocks 37 installed at both ends of the first spacing expansion plate 36. The first bracket 24 expands the distance between the two upper hook limiting blocks 37 through the first spacing expansion plate 36, thereby ensuring stable lifting of the first profile 11 and limiting the orientation of the upper hook limiting blocks 37, thereby ensuring stable lifting of the first profile 11 under different angle conditions.

[0030] The specific structure of the horizontal propulsion component is as follows: Figure 4 As shown, the horizontal propulsion assembly includes a second assembly plate 38 that is fixed above the second platform 25, a second slide 39 that is slidably mounted on the second assembly plate 38, and a servo screw mechanism for applying linear propulsion force to the second slide 39. In actual operation, the horizontal propulsion assembly directly pushes the second slide 39 along the second assembly plate 38 by the servo screw mechanism, which can push the second profile 12 toward the pole, thus achieving the technical effect of simple structure and easy control.

[0031] The specific structure of the servo lead screw mechanism is as follows: Figure 3 , Figure 4 As shown, the servo screw mechanism includes a servo motor 40, a reducer 41 connected to the servo motor 40, a screw 42 connected to the output end of the reducer 41, and a threaded sleeve 43 that is threadedly engaged with the screw 42. The threaded sleeve 43 is fixed to the first slide 29 or the second slide 39. When the servo screw mechanism is working normally, the torque output by the servo motor 40 is increased by the reducer 41 and drives the screw 42 to rotate. During the rotation, the screw 42 engages with the threaded sleeve 43 to generate threaded thrust, thereby driving the first slide 29 or the second slide 39 to perform linear displacement.

[0032] When using the impact wrench 27 to tighten the nut into the screw 13, a certain amount of pressure needs to be maintained. Therefore, as follows... Figure 4 As shown, two optical shafts 44 are horizontally fixed on the second slide 39, and the second bracket 26 is fixedly installed on the front end of the two optical shafts 44. The two optical shafts 44 are slidably connected to a spring feed plate 45, and two impact wrenches 27 are fixedly installed on the spring feed plate 45. A compression spring 46 is connected to the rear end face of the spring feed plate 45. The two impact wrenches 27 are given a degree of mobility relative to the second bracket 26 through the optical shafts 44 and the spring feed plate 45, and the elastic potential energy is released by the compression spring 46 to push the spring feed plate 45, thereby ensuring that the pressure of the impact wrench 27 is maintained when tightening the nut.

[0033] The specific structure of the second bracket 26 is as follows: Figure 4 As shown, the second bracket 26 includes a second spacing expansion plate 47 fixed to the two optical axes 44, and two horizontal clamping limiting blocks 48 installed at both ends of the second spacing expansion plate 47. The second bracket 26 increases the spacing between the two horizontal clamping limiting blocks 48 through the second spacing expansion plate 47, and restricts the orientation of the two horizontal clamping limiting blocks 48, thereby ensuring that the second bracket 26 can only perform horizontal displacement reset, and thus ensuring that the output end of the impact wrench 27 can be smoothly separated from the nut.

[0034] It should be noted that, as Figure 4As shown, the second assembly plate 38 is fixed with two L-shaped brackets 49. The L-shaped brackets 49 are longitudinally adjustable and equipped with wheel frames 50. The wheel frames 50 are rotatably connected to support wheels 51. The two support wheels 51 support the corresponding optical axes 44 respectively. On the one hand, they support the optical axes 44, and on the other hand, they limit the forward push distance of the elastic feed plate 45, that is, limit the depth to which the nut is screwed into the screw 13.

[0035] The specific embodiments are merely explanations of this utility model and are not intended to limit it. After reading this specification, those skilled in the art can make modifications to these embodiments without contributing any inventive step, but such modifications are protected by patent law as long as they fall within the scope of the claims of this utility model.

Claims

1. An automated installation and locking device for a utility pole crossarm, wherein the crossarm to be installed includes a first profile (11) and a second profile (12), the first profile (11) is pre-fixed with two screws (13), and the second profile (12) has through holes (14) for inserting the two screws (13), the installation and locking device includes a first crossarm frame (21) and a second crossarm frame (22), characterized in that: The first crossbeam (21) includes a first platform (23), a swing propulsion assembly mounted on the first platform (23), and a first bracket (24) driven by the swing propulsion assembly, the first bracket (24) being used to support the first profile (11); The second crossbeam (22) includes a second platform (25), a horizontal propulsion assembly mounted on the second platform (25), and a second bracket (26) driven by the horizontal propulsion assembly. The second bracket (26) is used to support the second profile (12). The second bracket (26) is equipped with two impact wrenches (27), which are respectively aligned with two through holes (14).

2. The automated installation and locking device for a utility pole crossarm according to claim 1, characterized in that: The swing propulsion assembly includes a first assembly plate (28) fixed to the first platform (23), a first slide (29) slidably mounted on the first assembly plate (28), a swing shaft (30) rotatably mounted on the first slide (29), and a swing guide wall (31) for guiding the swing shaft (30). The first assembly plate (28) is provided with a servo screw mechanism for applying linear thrust to the first slide (29); The swing shaft (30) is provided with eccentric blocks (321) at both ends, and the eccentric blocks (321) are provided with eccentric shafts (32). The swing guide wall (31) is provided with swing guide grooves (33) for the eccentric shafts (32) to be embedded. The swing guide grooves (33) have inclined sections and horizontal sections. The first bracket (24) is fixed to the swing shaft (30).

3. The automated installation and locking device for a utility pole crossarm according to claim 2, characterized in that: The first slide (29) has two bearing seats (34) arranged opposite each other. The bearing seats (34) are fixed with oilless bearings (35), and the oilless bearings (35) are rotatably sleeved on the swing shaft (30).

4. The automated installation and locking device for a utility pole crossarm according to claim 2, characterized in that: The first bracket (24) includes a first spacing extension plate (36) with clamps fixed to the swing shaft (30), and two upper hook limiting blocks (37) installed at both ends of the first spacing extension plate (36).

5. The automated installation and locking device for a utility pole crossarm according to claim 1, characterized in that: The horizontal propulsion assembly includes a second assembly plate (38) fixed above the second platform (25), a second slide (39) slidably mounted on the second assembly plate (38), and a servo screw mechanism for applying linear propulsion force to the second slide (39).

6. An automated installation and locking device for a utility pole crossarm according to any one of claims 2 or 5, characterized in that: The servo screw mechanism includes a servo motor (40), a reducer (41) connected to the servo motor (40), a screw (42) connected to the output end of the reducer (41), and a threaded sleeve (43) that is threadedly engaged with the screw (42). The threaded sleeve (43) is fixed to the first slide (29) or the second slide (39).

7. The automated installation and locking device for a utility pole crossarm according to claim 5, characterized in that: The second slide (39) is horizontally fixed with two optical axes (44), and the second bracket (26) is fixedly installed at the front end of the two optical axes (44); the two optical axes (44) are slidably connected to a spring feed plate (45), and two impact wrenches (27) are fixedly installed on the spring feed plate (45). The rear end face of the spring feed plate (45) is connected to a compression spring (46).

8. The automated installation and locking device for a utility pole crossarm according to claim 7, characterized in that: The second bracket (26) includes a second spacing extension plate (47) fixed to the two optical axes (44), and two horizontal clamping blocks (48) installed at both ends of the second spacing extension plate (47).

9. The automated installation and locking device for a utility pole crossarm according to claim 7, characterized in that: The second assembly plate (38) is fixed with two L-shaped brackets (49). The L-shaped brackets (49) are longitudinally adjustable and equipped with wheel frames (50). The wheel frames (50) are rotatably connected to support wheels (51). The two support wheels (51) are respectively supported on the corresponding optical axes (44).

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