Intelligent control live-line fastening device for transformer substation equipment bolt

Abstract

The invention provides an intelligent control live-line fastening device for transformer substation equipment bolts, and relates to the field of live-line work of transformer substation equipment.The device comprises a shell, a brushless motor is installed in the shell, a speed reducer is installed at the output end of the brushless motor, and the speed reducer comprises a rotating shaft fixedly installed at the output end of the brushless motor; a sun gear is fixedly installed at the end of the rotating shaft, a fixedly-connected gear ring is installed on the outer side of the sun gear, at least two planetary gears are installed between the gear ring and the sun gear, the planetary gears are meshed with the sun gear, the planetary gears are meshed with the gear ring, and fixedly-connected connecting shafts are arranged in the middles of the planetary gears. A planet carrier is installed at the upper end of the connecting shaft, connecting holes are formed in the surface of the planet carrier, and the connecting shaft is fixedly connected with the planet carrier through the connecting holes. The device provided by the invention has the characteristics of remote control, small size, light weight and convenience in operation, can complete the whole-process defect elimination operation of the nut through indirect operation, and improves the efficiency and safety of hot-line work.

Description

Technical Field

[0001] The present invention relates to the technical field of live working of substation equipment. Specifically, it relates to an intelligent control live tightening device for bolts of substation equipment. Background Art

[0002] A substation is a place where the voltage is changed. It is a place in the power system for transforming, concentrating, and distributing the voltage and current of electric energy. To ensure the quality of electric energy and the safety of equipment, voltage regulation, power flow (the flow and distribution of voltage, current, and power in each node and branch of the power system) control, and protection of transmission and distribution lines and main electrical equipment also need to be carried out in the substation.

[0003] Due to reasons such as wind sway and vibration during the long-term operation of substation equipment, fixing bolts at parts such as equipment joints in the substation become loose or even fall off, and then faults such as equipment overheating may occur. However, due to the reason of power supply reliability, it is not possible to immediately cut off the power for treatment. Therefore, a tightening device for live working is provided to solve the above problems. Summary of the Invention

[0004] The problem solved by the present invention is that during the long-term operation of substation equipment, due to reasons such as wind sway and vibration, fixing bolts at parts such as equipment joints in the substation become loose or even fall off, and then faults such as equipment overheating may occur. However, due to the reason of power supply reliability, it is not possible to immediately cut off the power for treatment.

[0005] To solve the above problems, the present invention provides an intelligent control live tightening device for bolts of substation equipment. The device includes a housing and a tightening assembly. A brushless motor is installed inside the housing. A speed reducer is installed at the output end of the brushless motor. The speed reducer includes a rotating shaft fixedly installed at the output end of the brushless motor. A sun gear is fixedly installed at the end of the rotating shaft. A fixedly connected ring gear is installed outside the sun gear. At least two planetary gears are installed between the ring gear and the sun gear. The planetary gears mesh with the sun gear and the ring gear. A fixedly connected connecting shaft is provided in the middle of each planetary gear. A planetary carrier is installed at the upper end of the connecting shaft. Connecting holes are formed on the surface of the planetary carrier. The connecting shaft is fixedly connected with the planetary carrier through the connecting holes. A connecting column is fixedly installed at the end of the planetary carrier. A first connecting piece is fixedly installed at the end of the connecting column. The tightening assembly includes a second connecting piece and a tightening head detachably connected to the second connecting piece. The first connecting piece is fixedly connected with the second connecting piece. The tightening head extends out of the housing;

[0006] At least one threaded sleeve is fixedly connected to the surface of the housing. A detachably connected hand-held rod is installed on the threaded sleeve, and the hand-held rod is of a telescopic structure.

[0007] Preferably, a camera is installed on the surface of the housing near the fastening head side, and the camera is used to capture the bolt status information. A lighting lamp is installed on the surface of the housing on one side of the camera, and an alarm is installed on the surface of the housing.

[0008] Preferably, it further includes:

[0009] A receiving module, which is used to receive the bolt status information captured by the camera;

[0010] A processing and judgment module, which is used to judge whether the bolt is loose through the bolt status information. The specific judgment process is as follows:

[0011] Obtain the length L from the bottom of the nut to the tail of the screw through the bolt status information, and compare the length from the bottom of the nut to the tail of the screw with the preset length threshold F. If L≥F, it is judged that the bolt status is abnormal and an alarm signal is generated. If L<F, it is judged that the bolt status is normal;

[0012] A control module, which is used to control the lighting lamp for lighting and control the alarm to give an alarm through the generated alarm signal to inform the staff that the bolt status is abnormal.

[0013] Preferably, by increasing the ratio of the number of teeth of the ring gear to the number of teeth of the sun gear, the rotational speed of the planet carrier is reduced, and the torque of the fastening head is amplified. The specific formula is as follows:

[0014] n1 + αn2 = (1 + α)n3

[0015]

[0016] Among them, n1 is the rotational speed of the sun gear, n2 is the rotational speed of the ring gear, n3 is the rotational speed of the planet carrier, Z1 is the number of teeth of the sun gear, and Z2 is the number of teeth of the ring gear.

[0017] Preferably, the handheld rod includes a second connecting sleeve. Two symmetrically distributed tooth grooves are provided on the inner side wall of the second connecting sleeve. A rack is fixedly installed in the tooth grooves. A second telescopic sleeve is slidably installed in the middle of the connecting sleeve. Two symmetrically distributed notches are provided at the end of the second telescopic sleeve located inside the connecting sleeve. Fixed pieces are fixedly installed at the notches, and a first gear is rotatably installed on each fixed piece. The two first gears are respectively engaged with the two racks;

[0018] A grip rod is slidably installed in the middle of the second telescopic sleeve. A tooth row is fixedly installed at the end of the grip rod located inside the second connecting sleeve. The racks at both ends of the tooth row are respectively engaged with the two first gears.

[0019] Preferably, an adjusting sleeve fixedly connected is sleeved on the surface of the second telescopic sleeve located outside the second connecting sleeve. Two fixing blocks are fixedly installed on the surface of the adjusting sleeve. An adjusting rod rotatably connected is installed between the two fixing blocks. One end of the adjusting rod and the adjusting sleeve are fixedly installed with a spring. The other end of the adjusting rod is fixedly installed with a fixing column. The bottom of the fixing column is fixedly connected with a fixing head.

[0020] A plurality of fixing holes are formed in the surface of the grip rod, and the fixing holes are adapted to the fixing head.

[0021] Preferably, a top plate is fixedly installed at the top of the second connecting sleeve. A first connecting sleeve is fixedly installed on the top plate. A side groove is formed in the inner wall of the first connecting sleeve. A first telescopic sleeve slidably connected is installed inside the first connecting sleeve. A sliding rod is fixedly installed on the outer side wall of the first telescopic sleeve. The sliding rod is installed in the sliding groove and is slidably connected with the sliding groove.

[0022] A top cover is arranged at the opening at the top of the second connecting sleeve. Symmetrically distributed sliders are fixedly installed at the edge of the top cover. The sliders are fixedly installed on the inner wall of the second connecting sleeve. Two symmetrically distributed sliding holes two are formed between the sliders. Two symmetrically distributed sliding holes one are formed in the surface of the first telescopic sleeve. The sliding holes one are slidably connected with the sliders. The sliding holes two are slidably connected with the first telescopic sleeve.

[0023] A reciprocating motor is fixedly installed at the center position of the top of the top plate. A threaded rod is fixedly installed at the output end of the reciprocating motor. The top of the threaded rod is rotatably connected to the surface of the top cover. A nut seat in threaded connection is sleeved on the threaded rod. A fixing rod is fixedly installed on the nut seat. The fixing rod is fixedly installed on the inner wall of the first telescopic sleeve. The end of the first telescopic sleeve extending outside the second connecting sleeve is fixedly installed with a threaded ring. The threaded ring is in threaded connection with the threaded sleeve.

[0024] Beneficial effects:

[0025] (1) The present invention provides an intelligent control live tightening device for bolts of substation equipment. Due to reasons such as wind sway and vibration during the long-term operation of substation equipment, fixing bolts at parts such as equipment joints in the substation become loose or even fall off, and then faults such as equipment overheating will occur. However, due to the reason of power supply reliability, the problem that power cannot be cut off immediately for treatment. This device can perform maintenance on power lines and equipment without power interruption during live operation, ensure uninterrupted power supply of the transmission line, and ensure the stable operation of the power system.

[0026] (2) The present invention provides an intelligent control live tightening device for bolts of substation equipment, which has the characteristics of being remotely controllable, small in size and light in weight, and convenient to operate. It can complete the full-process defect elimination operation of nuts through indirect operation, improving the efficiency and safety of live operation, and increasing the torque force of the tightening head through the balanced ratio of the reducer and the brushless motor.

[0027] (3) The present invention provides an intelligent control live tightening device for bolts of substation equipment. By setting an adjustable hand-held rod, it is convenient to complete the detection and tightening work of bolts at different heights. At the same time, the hand-held rod is provided with two-stage telescopic adjustment. The length is roughly adjusted through the second connecting sleeve and the second telescopic sleeve, and then the first connecting sleeve and the first telescopic sleeve can be used for fine adjustment according to actual needs, thereby improving the feasibility of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the intelligent control live tightening device for bolts of substation equipment of the present invention;

[0029] Figure 2 is a schematic diagram of the internal structure of the intelligent control live tightening device for bolts of substation equipment of the present invention;

[0030] Figure 3 is a schematic diagram of the structure of the brushless motor, reducer and tightening assembly of the present invention;

[0031] Figure 4 is a schematic diagram of the connection structure between the reducer and the tightening assembly of the present invention;

[0032] Figure 5 is a schematic diagram of the internal structure of the reducer and the tightening assembly of the present invention;

[0033] Figure 6 is an exploded view of the brushless motor, reducer and tightening assembly of the present invention;

[0034] Figure 7 is a structural diagram of the first connecting member of the present invention;

[0035] Figure 8 is a schematic diagram of the overall structure of the hand-held rod in the embodiment of the present invention;

[0036] Figure 9 is a schematic diagram of the cross-sectional structure of the hand-held rod in the embodiment of the present invention;

[0037] Figure 10 For the present invention Figure 9 Enlarged schematic diagram at position A;

[0038] Figure 11 is a schematic diagram of the structure of the second connecting sleeve in the embodiment of the present invention;

[0039] Figure 12 Structural diagram of the telescopic rod and the adjusting sleeve in the embodiment of the present invention;

[0040] Figure 13 Structural diagram of the second telescopic sleeve in the embodiment of the present invention;

[0041] Figure 14 Schematic diagram of the connection structure of the tooth row, gear and rack in the embodiment of the present invention;

[0042] Figure 15 Schematic diagram of the structure of the first connecting sleeve in the embodiment of the present invention;

[0043] Figure 16 Structural diagram of the connection between the threaded sleeve and the first telescopic sleeve in the embodiment of the present invention.

[0044] Explanation of reference numerals:

[0045] 100, housing; 110, alarm; 120, camera; 130, threaded sleeve;

[0046] 210, brushless motor; 220, reducer; 221, rotating shaft; 222, sun gear; 223, ring gear; 224, planetary gear; 225, connecting shaft; 226, planet carrier; 227, connecting hole; 228, connecting column; 229, first connecting member; 230, fastening assembly; 231, second connecting member; 232, fastening head;

[0047] 300, handheld rod; 310, threaded ring; 311, first telescopic sleeve; 312, threaded rod; 313, nut seat; 314, fixed rod; 315, first sliding hole; 316, sliding rod; 320, first connecting sleeve; 321, top cover; 322, slider; 323, second sliding hole; 234, side groove; 330, second connecting sleeve; 331, rack; 332, tooth groove; 340, second telescopic sleeve; 341, fixing piece; 342, first gear; 343, notch; 350, adjusting sleeve; 351, fixing block; 352, adjusting rod; 353, spring; 354, fixing column; 355, fixing head; 360, grip rod; 361, tooth row; 362, fixing hole. Detailed implementation manners

[0048] To make the above objects, features and advantages of the present invention more obvious and understandable, the following Figure 1-16 will give a detailed description of the specific embodiments of the present invention with reference to the attached

[0049] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation on the present invention.

[0050] The terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0051] In addition, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "coupled" shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0053] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are only for the purpose of illustration and do not represent the only implementation.

[0054] Please refer to Figures 1-7 , an embodiment of the present invention provides an intelligent control live tightening device for bolts of substation equipment. The device includes a housing 100 and a tightening assembly 230. A brushless motor 210 is installed inside the housing 100, and a speed reducer 220 is installed at the output end of the brushless motor 210. The speed reducer 220 includes a rotating shaft 221 fixedly installed at the output end of the brushless motor 210. A sun gear 222 is fixedly installed at the end of the rotating shaft 221. A fixedly connected ring gear 223 is installed outside the sun gear 222. At least two planetary gears 224 are installed between the ring gear 223 and the sun gear 222. The planetary gears 224 are meshed with the sun gear 222 and the planetary gears 224 are meshed with the ring gear 223. A fixedly connected connecting shaft 225 is provided in the middle of each planetary gear 224. A planetary carrier 226 is installed at the upper end of the connecting shaft 225. A connecting hole 227 is formed on the surface of the planetary carrier 226. The connecting shaft 225 is fixedly connected with the planetary carrier 226 through the connecting hole 227. A connecting column 228 is fixedly installed at the end of the planetary carrier 226. A first connecting member 229 is fixedly installed at the end of the connecting column 228. The tightening assembly 230 includes a second connecting member 231 and a tightening head 232 detachably connected to the second connecting member 231. Among them, the detachable connection between the tightening head 232 and the second connecting member 231 can be a threaded connection. The first connecting member 229 is fixedly connected to the second connecting member 231, and the tightening head 232 extends out of the housing 100;

[0055] At least one threaded sleeve 130 is fixedly connected to the surface of the housing 100. A detachable handheld rod 300 is installed on the threaded sleeve 130, and the handheld rod 300 is a telescopic structure.

[0056] Workers can operate through this device on the ground. By holding the handheld rod 300, adjusting the handheld rod 300 to an appropriate length, and sending the tightening head to the bolt to be tightened through the handheld rod 300 to tighten the bolt.

[0057] As a further solution of the embodiment of the present invention, a camera 120 is installed on the surface of the housing 100 near the tightening head 232. The camera 120 is used to capture the bolt status information. A lighting lamp is installed on the surface of the housing 100 on one side of the camera 120, and an alarm 110 is installed on the surface of the housing 100.

[0058] As a further solution of the embodiment of the present invention, it further includes:

[0059] A receiving module, configured to receive the bolt status information captured by the camera 120;

[0060] A processing and judgment module, configured to judge whether the bolt is loose through the bolt status information. The specific judgment process is as follows:

[0061] Obtain the length L from the bottom of the nut to the tail of the screw through the bolt status information. Compare the length from the bottom of the nut to the tail of the screw with the preset length threshold F. If L≥F, it is determined that the bolt status is abnormal and an alarm signal is generated. If L<F, it is determined that the bolt status is normal;

[0062] The control module is used to control the lighting of the lighting lamp and control the alarm 110 to give an alarm through the generated alarm signal to inform the staff that the bolt status is abnormal.

[0063] Send the device to the bolt to be detected through the handheld rod 300. Take a picture of the bolt to be detected through the camera 120. Obtain the bolt status information through the picture. Obtain the length L from the bottom of the nut to the tail of the screw through the bolt status information. Compare the length from the bottom of the nut to the tail of the screw with the preset length threshold F. If L≥F, it is determined that the bolt status is abnormal and an alarm signal is generated. Control the alarm 110 to give a flash or sound alarm through the control module, and then the staff tighten the bolt through the device. If L<F, it is determined that the bolt status is normal, and different flash or sound alarms can be sent through the control module to inform the staff that the bolt status is normal.

[0064] As a further solution of the embodiment of the present invention, by increasing the ratio of the number of teeth of the ring gear 223 to the number of teeth of the sun gear 222, the rotation speed of the planet carrier 226 is reduced, and the torque of the fastening head 232 is amplified. The specific formula is as follows:

[0065] n1+αn2=(1+α)n3

[0066]

[0067] Wherein, n1 is the rotation speed of the sun gear 222, n2 is the rotation speed of the ring gear 223, n3 is the rotation speed of the planet carrier 226, Z1 is the number of teeth of the sun gear 222, and Z2 is the number of teeth of the ring gear 223.

[0068] It can be seen from the formula that adjusting the number of teeth of the sun gear 222 and the ring gear 223 can adjust the rotation speed of the planetary gear 224 and the planet carrier 226. By reducing the rotation speed of the planet carrier 226, the torque of the fastening head 232 can be increased, so as to facilitate the completion of the bolt fastening action.

[0069] Please refer to Figure 8 、 Figure 9 、 Figures 11-14, as a further solution of the embodiment of the present invention, the handheld rod 300 includes a second connecting sleeve 330. The inner side wall of the second connecting sleeve 330 is provided with two symmetrically distributed tooth grooves 332. A rack 331 is fixedly installed in the tooth groove 332. A slidably connected second telescopic sleeve 340 is installed in the middle of the connecting sleeve. Two symmetrically distributed notches 343 are provided at the end of the second telescopic sleeve 340 located inside the connecting sleeve. Fixed pieces 341 are fixedly installed at the notches 343. A first gear 342 is rotatably installed on each fixed piece 341. The two first gears 342 are respectively engaged with the two racks 331;

[0070] A grip rod 360 is slidably installed in the middle of the second telescopic sleeve 340. A tooth row 361 is fixedly installed at the end of the grip rod 360 located inside the second connecting sleeve 330. The racks 331 at both ends of the tooth row 361 are respectively engaged with the two first gears 342.

[0071] By pushing or pulling the grip rod 360, the tooth row 361 on the grip rod 360 drives the gear to rotate, and the gear rolls on the rack 331, so as to realize the relative sliding between the grip rod 360 and the second telescopic sleeve 340, and between the second telescopic sleeve 340 and the second connecting sleeve 330. Through the settings of the gear, the rack 331 and the tooth row 361, the stability of the device is improved, so that the telescopic of the handheld rod 300 can be stably adjusted.

[0072] Please refer to Figure 10 and Figure 12 , as a further solution of the embodiment of the present invention, a fixed connection adjusting sleeve 350 is sleeved on the surface of the second telescopic sleeve 340 located outside the second connecting sleeve 330. Two fixing blocks 351 are fixedly installed on the surface of the adjusting sleeve 350. An adjusting rod 352 is rotatably installed between the two fixing blocks 351. One end of the adjusting rod 352 is fixedly installed with a spring 353 on the adjusting sleeve 350. The other end of the adjusting rod 352 is fixedly installed with a fixing column 354. The bottom of the fixing column 354 is fixedly connected with a fixing head 355;

[0073] A plurality of fixing holes 362 are provided on the surface of the grip rod 360, and the fixing holes 362 are adapted to the fixing head 355.

[0074] When the telescopic needs to be adjusted, only need to press the adjusting rod 352 on one side of the spring 353, slide the fixing head 355 out of the fixing hole 362, and then adjust the length of the adjusting rod 352. After the adjustment is completed, by releasing the pressure on the adjusting rod 352, due to the elastic force of the spring 353, the fixing head 355 is inserted back into the fixing hole 362 to realize the fixation of the handheld rod 300.

[0075] As a further solution of the embodiment of the present invention, a top plate is fixedly installed at the top of the second connecting sleeve 330, and a first connecting sleeve 320 is fixedly installed on the top plate. A side groove 234 is provided on the inner wall of the first connecting sleeve 320. A first telescopic sleeve 311 with a sliding connection is installed inside the first connecting sleeve 320. A sliding rod 316 is fixedly installed on the outer side wall of the first telescopic sleeve 311. The sliding rod 316 is installed in the chute and is slidably connected to the chute;

[0076] A top cover 321 is provided at the opening at the top of the second connecting sleeve 330. Symmetrically distributed sliders 322 are fixedly installed at the edge of the top cover 321. The sliders 322 are fixedly installed on the inner wall of the second connecting sleeve 330. Two symmetrically distributed second sliding holes 323 are formed between the sliders 322. Two symmetrically distributed first sliding holes 315 are provided on the surface of the first telescopic sleeve 311. The first sliding holes 315 are slidably connected to the sliders 322, and the second sliding holes 323 are slidably connected to the first telescopic sleeve 311;

[0077] A reciprocating motor is fixedly installed at the center of the top of the top plate. The output end of the reciprocating motor is fixedly installed with a threaded rod 312. The top of the threaded rod 312 is rotatably connected to the surface of the top cover 321. A nut seat 313 with a threaded connection is sleeved on the threaded rod 312. A fixing rod 314 is fixedly installed on the nut seat 313. The fixing rod 314 is fixedly installed on the inner wall of the first telescopic sleeve 311. The end of the first telescopic sleeve 311 extending out of the second connecting sleeve 330 is fixedly installed with a threaded ring 310. The threaded ring 310 is threadedly connected to the threaded sleeve 130.

[0078] By adjusting the relative sliding between the holding rod 360 and the second telescopic sleeve 340, and between the second telescopic sleeve 340 and the second connecting sleeve 330, a rough adjustment of the length of the handheld rod 300 is realized. When the fastening head 232 is sent to the bolt to be detected or fastened through the handheld rod 300, and when the state of the bolt is photographed by the camera 120 or the bolt needs to be fastened, there may be a need for fine adjustment of the height of the camera 120 or the fastening head 232. At this time, the reciprocating motor can be rotated to drive the rotation of the screw rod, the rotation of the screw rod drives the sliding of the nut seat 313, and the sliding of the nut seat 313 drives the sliding of the first telescopic sleeve 311, so as to finely adjust the height of the fastening head 232 and improve the convenience and stability of the use of the entire device.

[0079] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principles of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention. The basic principles, main features and advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above preferred embodiments. The embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

[0080] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0081] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principles of the present invention, several improvements and substitutions can be made, and these improvements and substitutions should also be regarded as the protection scope of the present invention. The basic principles, main features and advantages of the present invention have been shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above preferred embodiments. The embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention.

[0082] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent controlled live tightening device for bolts of substation equipment, characterized in that: The device comprises a housing (100) and a fastening assembly (230); a brushless motor (210) is installed inside the housing (100); a reducer (220) is installed at the output end of the brushless motor (210); the reducer (220) comprises a rotating shaft (221) fixedly installed at the output end of the brushless motor (210); a sun gear (222) is fixedly installed at the end of the rotating shaft (221); a fixedly connected ring gear (223) is installed outside the sun gear (222); at least two planetary gears (224) are installed between the ring gear (223) and the sun gear (222); the planetary gears (224) are meshed with the sun gear (222), and the planetary gears (224) are meshed with the ring gear (223); the planetary gears (224) are meshed with the sun gear (222), and the planetary gears (224) are meshed with the ring gear (223); 224) are provided with a fixedly connected connecting shaft (225) in the middle, a planetary carrier (226) is installed on the upper end of the connecting shaft (225), a connecting hole (227) is opened on the surface of the planetary carrier (226), the connecting shaft (225) is fixedly connected to the planetary carrier (226) through the connecting hole (227), a connecting column (228) is fixedly installed on the end of the planetary carrier (226), a first connecting member (229) is fixedly installed on the end of the connecting column (228), the fastening assembly (230) includes a second connecting member (231) and a fastening head (232) detachably connected to the second connecting member (231), the first connecting member (229) and the second connecting member (231) are fixedly connected, and the fastening head (232) extends out of the housing (100); At least one threaded sleeve (130) is fixedly connected to the surface of the housing (100), a detachably connected hand-held rod (300) is mounted on the threaded sleeve (130), and the hand-held rod (300) is a telescopic structure.

2. The intelligent controlled live tightening device for bolts of substation equipment according to claim 1 is characterized in that: A camera (120) is installed on the surface of the housing (100) located on a side close to the fastening head (232), and the camera (120) is used to photograph bolt status information. A lighting lamp is installed on the surface of the housing (100) located on one side of the camera (120), and an alarm (110) is installed on the surface of the housing (100).

3. The intelligent controlled live tightening device for bolts of substation equipment according to claim 2 is characterized in that: Also includes: A receiving module, used for receiving bolt status information photographed by a camera (120); The processing and judgment module is used to judge whether the bolt is loose based on the bolt status information. The specific judgment process is as follows: The length L from the bottom of the nut to the tail of the screw is obtained through the bolt status information, and the length from the bottom of the nut to the tail of the screw is compared with the preset length threshold F. If L≥F, the bolt status is judged to be abnormal and an alarm signal is generated. If L<F, the bolt status is judged to be normal. The control module is used to control the lighting lamp to illuminate, and to control the alarm (110) to sound an alarm through the generated alarm signal, so as to inform the staff that the bolt state is abnormal.

4. The intelligent controlled live tightening device for bolts of substation equipment according to claim 1 is characterized in that: By increasing the ratio of the number of teeth of the ring gear (223) to the number of teeth of the sun gear (222), the rotation speed of the planet carrier (226) is reduced, and the torque of the fastening head (232) is amplified. The specific formula is as follows: n1+αn2=(1+α)n3 Wherein, n1 is the rotation speed of the sun gear (222), n2 is the rotation speed of the ring gear (223), n3 is the rotation speed of the planet carrier (226), Z1 is the number of teeth of the sun gear (222), and Z2 is the number of teeth of the ring gear (223).

5. The intelligent controlled live tightening device for bolts of substation equipment according to claim 1 is characterized in that: The hand-held rod (300) comprises a second connecting sleeve (330), the inner side wall of the second connecting sleeve (330) is provided with two symmetrically distributed tooth grooves (332), a rack (331) is fixedly installed in the tooth groove (332), a second telescopic sleeve (340) is slidably connected and installed in the middle of the connecting sleeve, and two symmetrically distributed notches (343) are provided at the end of the second telescopic sleeve (340) located inside the connecting sleeve, a fixing plate (341) is fixedly installed at each of the notches (343), and a rotatably connected gear one (342) is installed on each of the fixing plates (341), and the two gears one (342) are respectively meshed with the two racks (331); A gripping rod (360) is slidably mounted in the middle of the second telescopic sleeve (340), and a tooth row (361) is fixedly mounted on the end of the gripping rod (360) located inside the second connecting sleeve (330), and the racks (331) at both side ends of the tooth row (361) are respectively meshed with two gears (342).

6. The intelligent controlled live tightening device for bolts of substation equipment according to claim 5 is characterized in that: The surface of the second telescopic sleeve (340) located outside the second connecting sleeve (330) is provided with a fixedly connected adjusting sleeve (350), and two fixing blocks (351) are fixedly installed on the surface of the adjusting sleeve (350), and an adjusting rod (352) rotatably connected is installed between the two fixing blocks (351), and a spring (353) is fixedly installed on one end of the adjusting rod (352) and the adjusting sleeve (350), and a fixing column (354) is fixedly installed on the other end of the adjusting rod (352), and a fixing head (355) is fixedly connected to the bottom of the fixing column (354); A plurality of fixing holes (362) are provided on the surface of the gripping rod (360), and the fixing holes (362) are adapted to match the fixing heads (355).

7. The intelligent controlled live tightening device for bolts of substation equipment according to claim 5 is characterized in that: A top plate is fixedly mounted on the top of the second connecting sleeve (330), a first connecting sleeve (320) is fixedly mounted on the top plate, a side groove (234) is provided on the inner wall of the first connecting sleeve (320), a first telescopic sleeve (311) is slidably mounted inside the first connecting sleeve (320), a sliding rod (316) is fixedly mounted on the outer wall of the first telescopic sleeve (311), and the sliding rod (316) is mounted in the sliding groove and is slidably connected to the sliding groove; A top cover (321) is provided at the top opening of the second connecting sleeve (330), and symmetrically distributed sliders (322) are fixedly installed on the edge of the top cover (321), and the sliders (322) are fixedly installed on the inner wall of the second connecting sleeve (330), and two symmetrically distributed sliding holes (323) are formed between the sliders (322). Two symmetrically distributed sliding holes (315) are provided on the surface of the first telescopic sleeve (311), and the sliding holes (315) are slidably connected to the sliders (322), and the sliding holes (323) are slidably connected to the first telescopic sleeve (311); A reciprocating motor is fixedly installed at the center position of the top of the top plate, a threaded rod (312) is fixedly installed at the output end of the reciprocating motor, the top of the threaded rod (312) is rotatably connected to the surface of the top cover (321), a nut seat (313) connected by thread is sleeved on the threaded rod (312), a fixing rod (314) is fixedly installed on the nut seat (313), the fixing rod (314) is fixedly installed on the inner wall of the first telescopic sleeve (311), and a threaded ring (310) is fixedly installed on the end of the first telescopic sleeve (311) extending outside the second connecting sleeve (330), and the threaded ring (310) is threadedly connected to the threaded sleeve (130).

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