Auxiliary device for handling heating defects of hydraulic strain clamp under load
By designing an auxiliary device to handle the overheating defect of hydraulic tension clamps under load, and utilizing a self-rotating positioning component and a sliding positioning component to achieve six degrees of freedom operation, the problem of the drain line sagging when the drain plate of the hydraulic tension clamp is opened is solved, thus improving the safety and efficiency of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- QUJING POWER SUPPLY BUREAU YUNNAN POWER GRID CO LTD
- Filing Date
- 2021-03-15
- Publication Date
- 2026-06-09
AI Technical Summary
When working on live lines, the drain line will sag naturally when the hydraulic tension clamp drain plate is opened, making operation difficult and increasing safety risks and operational challenges.
An auxiliary device for handling overheating defects in hydraulic tension clamps under load was designed. The device includes a first arm, a steering joint, a second arm, and a clamp. The first arm and the second arm are connected by the steering joint. The device utilizes a self-rotating positioning component and a sliding positioning component to achieve six degrees of freedom of operation, ensuring the stability of the drain line.
This device can firmly grip the conductor at both ends of the hydraulic tension clamp and the guide plate, preventing the guide line from sagging, freeing up the operator's hands, and improving processing safety and efficiency.
Smart Images
Figure CN113193509B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of live-line working, and in particular to an auxiliary device for handling overheating defects in hydraulic tension clamps under load. Background Technology
[0002] In the commonly used method of using a shunt wire to address overheating defects in the drain plate of a hydraulic tension clamp under load, the drain wire sags naturally due to its own weight after the drain plate is opened, posing significant difficulties for operators. If the drain wire detaches from the conductor, it can cause a serious electrical malfunction accident, such as the drain wire breaking under load. To address the complexities, high difficulty, and significant safety risks associated with opening the drain plate of a hydraulic tension clamp for overheating defects, this paper provides an auxiliary device for addressing overheating defects in hydraulic tension clamps under load. Summary of the Invention
[0003] To address the aforementioned problems, this invention provides an auxiliary device for handling overheating defects in hydraulic tension clamps under load.
[0004] The technical solution adopted in this invention is as follows:
[0005] An auxiliary device for handling overheating defects in hydraulic tension clamps under load includes a first arm, a steering joint, a second arm, and a clamp. One end of the first arm and the second arm are connected by the steering joint, and the angle between the first arm and the second arm can be controlled by the steering joint. The other end of the first arm is fixed to the tension clamp by the clamp, and the first arm can rotate. The other end of the second arm is fixed to a drain plate by the clamp, and the second arm can extend and retract.
[0006] Preferably, the first arm comprises a first arm housing, a chuck fixing seat, an upper fixing frame, a lower fixing frame, and a rotation positioning component. The upper fixing frame, the lower fixing frame, and the rotation positioning component are disposed within the first arm housing. The upper fixing frame is a rod with a housing mounting platform on it, and is connected to the first arm housing through the housing mounting platform. Its top passes through the first arm housing and is connected to the chuck fixing seat, and the chuck can be installed through the chuck fixing seat. Its bottom is connected to the lower fixing frame through the rotation positioning component. The lower fixing frame is inserted into the steering joint through a connecting ring.
[0007] Preferably, the self-rotating positioning assembly comprises a self-rotating component housing, a rotating pin, inner and outer ring bearings, a linkage seat, a locking seat, and a locking pin; the rotating pin is inserted into the upper fixed frame and fixedly connected to it, and its pin body passes through the inner ring of the inner and outer ring bearings and is keyed to the linkage seat; the linkage seat and the locking seat are located inside the self-rotating component housing, with the linkage seat fitted onto the locking seat; the locking seat is fixed to the lower fixed frame and is provided with gears, springs, and a stop structure that cooperate with the locking pin; the locking pin is located on the lower fixed frame, and its pin body can slide into the locking seat; the first support arm housing is provided with a groove that cooperates to actuate the locking pin.
[0008] Preferably, the clamp fixing seat is inserted into the clamp, the bottom of the clamp is provided with a rod, the rod is provided with a positioning block, and the fixing seat is provided with a groove and a locking nut that cooperate with the positioning block.
[0009] Preferably, the first arm housing also has a functional expansion block, a tool hanging ring, and an anti-slip guide groove.
[0010] Preferably, the second arm consists of a second arm housing, a chuck connecting screw, a sliding frame, a fixed frame, and a sliding positioning assembly. The sliding frame and the fixed frame are slidably connected by the sliding positioning assembly. The fixed frame is inserted into the steering joint through a connecting ring. The second arm housing is fixedly mounted on the fixed frame. The sliding frame can slide through the second arm housing. The sliding frame is detachably connected to the chuck through the chuck connecting screw.
[0011] Preferably, the sliding positioning assembly includes a sliding assembly and a positioning assembly; the sliding assembly consists of a slide rail and a slider, the slide rail is fixedly mounted on the fixed frame, the slider is fixedly mounted on the sliding frame, and the slider can slide on the slide rail; the positioning assembly consists of a sliding locking switch, a rack, a torsion spring, and a rack engagement block, the rack is fixedly mounted on the fixed frame, the rack engagement block can swing on the sliding frame via a shaft, the shaft is provided with a torsion spring, one end of the rack engagement block has teeth that can engage with the rack, and the other end is connected to the sliding locking switch, the sliding locking switch is exposed outside the second arm housing.
[0012] Preferably, the second arm housing is also provided with a handle for easy gripping.
[0013] Preferably, the steering joint comprises a housing, a ratchet clutch assembly, a harmonic reducer, and a folding rocker arm. The ratchet clutch assembly and the harmonic reducer are located inside the housing, and the ratchet clutch assembly is connected to the harmonic reducer via a transmission connection. The lower fixed frame of the first arm is inserted into the housing via a connecting ring and connected to the flange of the harmonic reducer. The fixed frame of the second arm is inserted into the housing via a connecting ring and connected to the bottom output end of the harmonic reducer. The folding rocker arm is slidably mounted on the end cover of the housing and can drive the end cover to rotate. The inner side of the end cover has a groove for engaging the ratchet clutch assembly. The folding rocker arm comprises a sliding block, a locking spring pin, and a rocker arm. The sliding block is slidably positioned in the sliding groove of the end cover via the locking spring pin. The rocker arm and the sliding block are rotatably connected via a shaft and a limiting block.
[0014] Preferably, the ratchet clutch assembly comprises a clutch housing, several friction plates, a ratchet, a gear, a main shaft, a transmission seat, and a locking block arranged coaxially; the friction plates, ratchet, and gear are mounted on the main shaft; the bottom of the main shaft is rotatably mounted on the transmission seat via a bearing seat, and its top passes through the clutch housing and is inserted into a groove on the inner side of the end cover, and is fixed by bolts on the end cover; the bottom of the transmission seat is inserted into a harmonic reducer and is keyed to the harmonic reducer, and its top is engaged in the teeth of the gear; the locking block is mounted on the harmonic reducer, and its top is rotatably engaged in the teeth of the ratchet.
[0015] The beneficial effects of this invention are:
[0016] This invention is an auxiliary device for addressing overheating defects in hydraulic tension clamps under load. When dealing with overheating defects, it provides a third hand for equipotential workers, allowing them to firmly grasp the conductors at both ends of the hydraulic tension clamp and the guide plate. After the guide plate is opened, it prevents the guide wire from drooping naturally. The operator can achieve free hovering in six degrees of freedom (up, down, left, right, forward, and backward), effectively freeing the hands of equipotential workers and improving the safety and efficiency of handling overheating defects.
[0017] The horizontal rotation function of this auxiliary device for addressing the overheating defect of hydraulic tension clamps under load is achieved through a self-rotating positioning component within the first arm. After rotating to the designated position, it can be locked in place by a locking pin. The vertical movement function is achieved using a harmonic reducer in conjunction with a ratchet clutch. In actual use, lifting a 20kg load requires only 2kg of force input; after rising to the designated position, the ratchet clutch locks the arm in place. The forward and backward movement function is achieved through a sliding positioning component within the second arm. After sliding forward or backward to the designated position using the sliding component, the positioning component locks the second arm in place. Attached Figure Description
[0018] Figure 1 This is a schematic diagram illustrating the usage state of the present invention;
[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention;
[0020] Figure 3 , Figure 4 , Figure 5 This is a schematic diagram showing the connection between the first and second arms and the steering joint of the present invention.
[0021] Figure 6 This is a schematic diagram showing the connection between the first arm and the clamp of the present invention;
[0022] Figure 7 This is a schematic diagram of the internal structure of the first arm of the present invention;
[0023] Figure 8 This is a schematic diagram of the structure of the second arm sliding positioning assembly of the present invention;
[0024] Figure 9 , Figure 10 This is a schematic diagram showing the connection between the ratchet clutch assembly and the harmonic reducer of the present invention;
[0025] Figure 1 —In the diagram, 1—First outrigger, 2—Steering joint, 3—Second outrigger, 4—Clamp, 5—Tension clamp, 6—Drain plate, 7—First outrigger housing, 8—Clamp fixing seat, 9—Upper fixed frame, 10—Lower fixed frame, 11—Rotation positioning component, 12—Housing mounting platform, 13—Rotation component housing, 14—Rotating pin, 15—Inner and outer ring bearings, 16—Linkage seat, 17—Locking seat, 18—Locking pin, 19—Positioning block, 20—Locking nut, 21—Function expansion block, 22—Tool hanging ring, 23—Anti-slip guide 24—Second arm housing; 25—Clamp connecting screw; 26—Sliding frame; 27—Fixed frame; 28—Slider; 29—Sliding locking switch; 30—Rack; 31—Torsion spring; 32—Rack engagement block; 33—Handle; 34—Outer shell; 35—Ratchet clutch assembly; 36—Harmonic reducer; 37—Folding crank handle; 38—End cover; 39—Sliding block; 40—Locking spring pin; 41—Crank handle; 42—Limit block; 43—Ratchet; 44—Gear; 45—Main shaft; 46—Transmission seat; 47—Locking block. Detailed Implementation
[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0027] like Figure 1-10As shown, this invention is an auxiliary device for handling overheating defects in hydraulic tension clamps under load. This auxiliary device includes a first arm 1, a steering joint 2, a second arm 3, and a clamp 4. One end of the first arm 1 and the second arm 3 are connected by the steering joint 2, which controls the angle between the two arms. The other end of the first arm 1 is fixed to the tension clamp 5 via the clamp 4, and the first arm 1 is capable of rotation. The other end of the second arm 3 is fixed to a drain plate 6 via the clamp 4, and the second arm 3 is extendable and retractable.
[0028] The specific structure of the first arm:
[0029] The first support arm 1 consists of a first support arm housing 7, a chuck fixing seat 8, an upper fixing frame 9, a lower fixing frame 10, and a rotation positioning component 11. The upper fixing frame 9, the lower fixing frame 10, and the rotation positioning component 11 are located inside the first support arm housing 7. The upper fixing frame 9 is a rod, and a housing mounting platform 12 is provided on the upper fixing frame 9. The housing mounting platform 12 is connected to the first support arm housing 7. The top of the upper fixing frame 9 passes through the first support arm housing 7 and is connected to the chuck fixing seat 8. The chuck 4 can be installed through the chuck fixing seat 8. The bottom of the upper fixing frame 9 is connected to the lower fixing frame 10 through the rotation positioning component 11. The lower fixing frame 10 is inserted into the steering joint 2 through a connecting ring.
[0030] The self-rotating positioning assembly 11 consists of a self-rotating component housing 13, a rotating pin 14, inner and outer ring bearings 15, a linkage seat 16, a locking seat 17, and a locking pin 18. The rotating pin 14 is partially inserted into and fixedly connected to the upper fixed frame 9, with its pin body passing through the inner ring of the inner and outer ring bearings 15 and keyed to the linkage seat 16. The linkage seat 16 and the locking seat 17 are located inside the self-rotating component housing 13, with the linkage seat 16 fitted onto the locking seat 17. The locking seat 17 is fixed to the lower fixed frame 10 and has gears, springs, and a stop structure that engage with the locking pin 18. The locking pin 18 is located on the lower fixed frame 10, and its pin body can slide into the locking seat 17. After the locking pin 18 is opened, the rotating pin 14, inner and outer ring bearings 15, linkage seat 16, and locking seat 17 can rotate freely; the locking pin 18 forms a lock after being inserted into the locking seat 17. The first arm housing 7 is provided with a groove for engaging the locking pin 18.
[0031] The specific structure of the second arm:
[0032] The second support arm 3 is composed of a second support arm housing 24, a clamp connecting screw 25, a sliding frame 26, a fixed frame 27, and a sliding positioning assembly. The sliding frame 26 and the fixed frame 27 are slidably connected by the sliding positioning assembly. The fixed frame 27 is inserted into the steering joint 2 through a connecting ring. The second support arm housing 24 is fixedly installed on the fixed frame 27. The sliding frame 26 can slide through the second support arm housing 24. The sliding positioning assembly includes a sliding component and a positioning component. The sliding component consists of a slide rail and a slider 28. The slide rail is fixedly installed on the fixed frame 27, and the slider 28 is fixedly installed on the sliding frame 26. The slider 28 can slide on the slide rail. The positioning component consists of a sliding locking switch 29, a rack 30, a torsion spring 31, and a rack engagement block 32. The rack 30 is fixedly installed on the fixed frame 27. The rack engagement block 32 can swing on the sliding frame 26 via a shaft. The shaft is provided with a torsion spring 31. One end of the rack engagement block 32 has teeth that can engage with the rack 30. The other end is connected to the sliding locking switch 29, which is exposed outside the second arm housing 24.
[0033] Connection method between the first arm, the second arm, and the chuck:
[0034] Both the first arm 1 and the second arm 3 are designed to be detachably connected to the chuck 4. The chuck fixing seat 8 of the first arm 1 is inserted into the chuck 4. The chuck 4 has a rod at its bottom with a positioning block 19 on it. The fixing seat has a groove that mates with the positioning block 19 and a locking nut 20. The locking nut 20 is threadedly connected to the chuck fixing seat 8. By rotating the locking nut 20, the positioning block 19 and the chuck 4 can be locked inside the chuck fixing seat 8. By rotating the locking nut 20 in the opposite direction, the chuck 4 can be pulled out of the chuck fixing seat 8. The sliding frame 26 of the second arm 3 is detachably connected to the chuck 4 via a chuck connecting screw 25.
[0035] The specific structure of the steering joint:
[0036] The steering joint 2 is composed of a housing 34, a ratchet clutch assembly 35, a harmonic reducer 36, and a folding rocker arm 37. The ratchet clutch assembly 35 and the harmonic reducer 36 are located inside the housing 34 and are connected to the harmonic reducer 36. The lower fixed frame 10 of the first support arm 1 is inserted into the housing 34 and connected to the flange of the harmonic reducer 36 through a connecting ring. The fixed frame 27 of the second support arm 3 is inserted into the housing 34 and connected to the bottom output end of the harmonic reducer 36 through a connecting ring. The folding rocker arm 37 is slidably mounted on the end cover 38 of the housing 34 and can drive the end cover 38 to rotate. The inner side of the end cover 38 is provided with a groove that matches the ratchet clutch assembly 35. The folding rocker arm 37 is composed of a sliding block 39, a locking spring pin 40, and a rocker arm 41. The sliding block 39 is slidably positioned in the sliding groove of the end cover 38 through the locking spring pin 40. The rocker arm 41 and the sliding block 39 are rotatably connected through a shaft and a limiting block 42.
[0037] The ratchet clutch assembly 35 consists of a clutch housing, several friction plates coaxially arranged, a ratchet 43, a gear 44, a main shaft 45, a transmission seat 46, and a locking block 47. The friction plates, ratchet 43, and gear 44 are mounted on the main shaft 45. The bottom of the main shaft 45 is rotatably mounted on the transmission seat 46 via a bearing seat, and its top passes through the clutch housing and is inserted into a groove inside the end cover 38, and is fixed by bolts on the end cover 38. The bottom of the transmission seat 46 is inserted into the harmonic reducer 36 and is keyed to the harmonic reducer 36, and its top is engaged in the teeth of the gear 44. The locking block 47 is mounted on the harmonic reducer 36, and its top is rotatably engaged in the teeth of the ratchet 43.
[0038] How the steering joint works:
[0039] When the angle between the first arm 1 and the second arm 3 needs to be controlled via the steering joint 2, the sliding block 39 of the folding crank 37 is slid out and the crank 41 is rotated. When the crank 41 rotates to 90°, the limiting block 42 limits the crank 41. The folding crank 37 is rotated counterclockwise, causing the end cover 38 of the housing 34 to rotate counterclockwise. The end cover 38, through the groove and bolt, causes the main shaft 45 of the ratchet clutch assembly 35 to rotate counterclockwise. Simultaneously, the main shaft 45 rotates counterclockwise, causing the gear 44 and the transmission seat 46 to rotate counterclockwise. Simultaneously, the transmission seat 46 rotates counterclockwise, causing the second arm 3 to rotate clockwise via the harmonic reducer 36. This allows the angle between the first arm 1 and the second arm 3 to be adjusted. After the angle between the first arm 1 and the second arm 3 is adjusted, the locking block 47 rotates and engages with the teeth of the ratchet 43, so that the second arm 3 will not rotate due to its own weight and the weight of the deflector plate, provided that the folding crank 37 is not rotated.
[0040] The use of this auxiliary device for handling overheating defects in hydraulic tension clamps under load:
[0041] When using the auxiliary device for handling overheating defects in hydraulic tension clamps under load, firstly, a shunt wire is connected in parallel to both ends of the hydraulic tension clamp where the overheating defect occurs. Then, the first arm 1 of the auxiliary device is fixed to the tension clamp 5 via the clamp 4. The angle between the first arm 1 and the second arm 3 is adjusted by shaking the folding handle 37 to bring the second arm 3 to an appropriate position. Then, the extension length of the second arm 3 is adjusted by pressing the sliding locking switch 29 of the second arm 3 to bring the clamp 4 on the second arm 3 to an appropriate position and securely connect it with the diversion plate 6. After releasing the sliding locking switch 29, the diversion plate fixing bolts can be removed. After removing the diversion plate fixing bolts, the locking pin 18 of the self-rotation positioning component 11 of the first arm 1 is opened. The diversion plate fixed at the lower end is moved to the left or right to a position that does not affect the actual operation. The oxide layer on the surface of the diversion plate can then be removed using sandpaper and a wire brush. After removing the oxide layer, conductive grease is applied. Finally, disassemble the two clamps 4 of the auxiliary device, remove the distribution line, and complete the defect handling.
[0042] Based on the above technical solution, to further facilitate the operation of equipotential workers, the first arm housing 7 still has a functional expansion block 21, a tool hanging ring 22, and an anti-slip guide groove 23. The second arm housing 24 still has a gripping handle 33. The functional expansion block 21 can be used to install an extended shoulder strap or handle, the tool hanging ring 22 can be used to carry operating tools, and the anti-slip guide groove 23 or the handle 33 can provide good friction when gripping the first arm 1 or the second arm 3.
Claims
1. An auxiliary device for handling overheating defects in hydraulic tension clamps under load, characterized in that: The auxiliary device for handling overheating defects in hydraulic tension clamps under load includes a first arm, a steering joint, a second arm, and a clamp. One end of the first arm and the second arm are connected by the steering joint, and the angle between the first arm and the second arm can be controlled by the steering joint. The other end of the first arm is fixed to the tension clamp by the clamp, and the first arm can rotate. The other end of the second arm is fixed to the drain plate by the clamp, and the second arm can extend and retract. The first arm consists of a first arm housing, a chuck fixing seat, an upper fixing frame, a lower fixing frame, and a rotation positioning component. The upper fixing frame, the lower fixing frame, and the rotation positioning component are located inside the first arm housing. The upper fixing frame is a rod with a housing mounting platform on it, and is connected to the first arm housing through the housing mounting platform. Its top passes through the first arm housing and is connected to the chuck fixing seat, and the chuck can be installed through the chuck fixing seat. Its bottom is connected to the lower fixing frame through the rotation positioning component. The lower fixing frame is inserted into the steering joint through a connecting ring. The self-rotating positioning assembly consists of a self-rotating component housing, a rotating pin, inner and outer ring bearings, a linkage seat, a locking seat, and a locking pin. The rotating pin is inserted into the upper fixed frame and is fixedly connected to it. Its pin body passes through the inner ring of the inner and outer ring bearings and is keyed to the linkage seat. The linkage seat and the locking seat are located inside the self-rotating component housing, with the linkage seat fitted onto the locking seat. The locking seat is fixed to the lower fixed frame and has gears, springs, and a stop structure that cooperate with the locking pin. The locking pin is located on the lower fixed frame, and its pin body can slide into the locking seat. The first support arm housing has a groove for moving the locking pin.
2. The auxiliary device for handling overheating defects in hydraulic tension clamps under load according to claim 1, characterized in that: The clamp fixing seat is inserted into the clamp. The bottom of the clamp is provided with a rod, and the rod is provided with a positioning block. The fixing seat is provided with a groove and a locking nut that match the positioning block.
3. The auxiliary device for handling overheating defects in hydraulic tension clamps under load according to claim 1, characterized in that: The first arm housing still has functional expansion blocks, tool hanging rings, and anti-slip guide grooves.
4. The auxiliary device for handling overheating defects in hydraulic tension clamps under load according to claim 1, characterized in that: The second arm consists of a second arm housing, a chuck connecting screw, a sliding frame, a fixed frame, and a sliding positioning assembly. The sliding frame and the fixed frame are slidably connected by the sliding positioning assembly. The fixed frame is inserted into the steering joint through a connecting ring. The second arm housing is fixedly mounted on the fixed frame. The sliding frame can slide through the second arm housing. The sliding frame is detachably connected to the chuck through the chuck connecting screw.
5. The auxiliary device for handling overheating defects in hydraulic tension clamps under load according to claim 4, characterized in that: The sliding positioning assembly includes a sliding component and a positioning component. The sliding component consists of a slide rail and a slider. The slide rail is fixedly installed on the fixed frame, and the slider is fixedly installed on the sliding frame. The slider can slide on the slide rail. The positioning component consists of a sliding locking switch, a rack, a torsion spring, and a rack engagement block. The rack is fixedly installed on the fixed frame. The rack engagement block can swing on the sliding frame via a shaft. The shaft is equipped with a torsion spring. The bottom of one end of the rack engagement block is provided with teeth that can engage the rack. The other end is connected to the sliding locking switch, which is exposed outside the second arm housing.
6. The auxiliary device for handling overheating defects in hydraulic tension clamps under load according to claim 4, characterized in that: The second arm housing is also equipped with a handle for easy gripping.
7. The auxiliary device for handling overheating defects in hydraulic tension clamps under load according to claim 4, characterized in that: The steering joint consists of a housing, a ratchet clutch assembly, a harmonic reducer, and a folding rocker arm. The ratchet clutch assembly and the harmonic reducer are located inside the housing and are connected to the harmonic reducer via a transmission connection. The lower fixed frame of the first arm is connected to the flange of the harmonic reducer via a connecting ring inserted into the housing. The fixed frame of the second arm is connected to the bottom output end of the harmonic reducer via a connecting ring inserted into the housing. The folding rocker arm is slidably mounted on the end cover of the housing and can drive the end cover to rotate. The inner side of the end cover has a groove for engaging the ratchet clutch assembly. The folding rocker arm consists of a sliding block, a locking spring pin, and a rocker arm. The sliding block is slidably positioned in the sliding groove of the end cover via the locking spring pin. The rocker arm and the sliding block are rotatably connected via a shaft and a limiting block.
8. The auxiliary device for handling overheating defects in hydraulic tension clamps under load according to claim 7, characterized in that: The ratchet clutch assembly consists of a clutch housing, several friction plates, a ratchet, a gear, a main shaft, a transmission seat, and a locking block arranged coaxially. The friction plates, ratchet, and gear are mounted on the main shaft. The bottom of the main shaft is rotatably mounted on the transmission seat via a bearing seat, and its top passes through the clutch housing and is inserted into a groove inside the end cover, and is fixed by bolts on the end cover. The bottom of the transmission seat is inserted into a harmonic reducer and is keyed to the harmonic reducer, and its top is engaged in the teeth of the gear. The locking block is mounted on the harmonic reducer, and its top is rotatably engaged in the teeth of the ratchet.