A power transmission system and method of using the same

Abstract

The present invention relates to the technical field of power supply equipment, and specifically to a power transmission system and a method of using the same. A sealing detection component is also slidably arranged on the busbar, and the sealing detection component wraps the slider of the current collector and seals the contact portion between the slider and the busbar. The sealing detection component includes: a sealing cylinder, a sealing ring, and two sealing members. The sealing cylinder is sleeved on the outside of the busbar, and a sliding groove matching the slider is provided in the middle of the sealing cylinder. The sealing ring is arranged in the middle of the sealing cylinder, and the two sealing members are symmetrically arranged at the two end openings of the sealing cylinder to form a sealed cavity in the sealing cylinder. The present application can effectively transmit power in a high temperature and high humidity environment through the sealing detection component, and can effectively reduce the damage to the busbar caused by the high temperature and high humidity environment; the ultrasonic phased array probe can detect the surface and internal damage of the busbar in an all-round and multi-level manner, and reduce the occurrence of safety accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply equipment, and in particular to a power transmission system and a method for using the same. Background Art

[0002] In known busbar systems, movable electrical loads are moved along the busbar. To supply the load with electricity, the load is equipped with a current collector, whose sliding contacts engage in a conductor bundle guided along the busbar. The load can be, for example, a transport suspension of a track-mounted suspension rail, a cable car movable on the rails or an E-RTG container crane, which is equipped with an electrical running gear that is supplied with electricity by the busbar.

[0003] It should be noted that in certain specific complex environments, the machinery needs to be powered, and the commonly used power transmission system is the busbar. Taking the oxygen enrichment zone environment as an example, the use environment of the oxygen enrichment zone is usually high temperature and high humidity. In this environment, it is easy to cause damage to the component materials of the busbar, reduce the mechanical strength, and crack the outer skin of the circuit wire. In addition, the busbar in the high temperature and high pressure environment is generally provided with a sealing strip. In a high temperature environment, the outer skin of the sealing strip is easy to crack, thereby reducing the sealing performance, leading to a series of derivative problems; in a high temperature environment, due to the influence of the characteristics of the slider material, the temperature rises and the resistivity increases, thereby increasing the loss of power transmission. It should also be noted that when a failure occurs in the transmission system, it is necessary to stop work for maintenance, which is not only time-consuming and labor-intensive, but also delays the production process, causing serious economic losses.

[0004] In view of the above problems, there is an urgent need for a power transmission system that can perform stable power transmission in a high temperature and high humidity environment. Summary of the invention

[0005] The present invention aims to provide a power transmission system for stable power transmission in a high temperature and high humidity environment; and to provide a power transmission method for performing maintenance during operation to reduce the occurrence of faults.

[0006] The present invention is achieved through the following technical solutions:

[0007] A power transmission system includes a fixed frame, a busbar and a current collector, wherein the busbar is fixed on the fixed frame, the current collector is slidably arranged on the busbar, a sealing strip is arranged at the open end of the busbar, the sealing strip seals the current collector movably, and a sealing detection component is also slidably arranged on the busbar, the sealing detection component wraps the slider of the current collector and seals the contact part between the slider and the busbar, the sealing detection component includes: a sealing cylinder, a sealing ring and two sealing members, the sealing cylinder is sleeved on the outside of the busbar and a sliding groove cooperating with the slider is opened in the middle of the sealing cylinder, the sealing ring is arranged in the middle of the sealing cylinder, and the two sealing members are symmetrically arranged at the two end openings of the sealing cylinder for forming a sealed cavity in the sealing cylinder.

[0008] It should be noted that in the prior art, in certain specific complex environments, it is necessary to power the machinery, and the commonly used power transmission system is the busbar. Taking the oxygenation zone environment as an example, the use environment of the oxygenation zone is usually high temperature and high humidity. In such an environment, it is easy to cause damage to the component materials of the busbar, reduce the mechanical strength, and crack the outer skin of the circuit wire. In view of the above situation, the applicant proposed a power transmission system that can be used stably in a high temperature and high humidity environment, and its specific structure is: a sealing detection component is also slidably arranged on the busbar, and the sealing detection component wraps the slider of the collector and seals the contact part between the slider and the busbar, and the sealing detection component includes: a sealing cylinder, a sealing ring and two sealing members, the sealing cylinder is sleeved on the outside of the busbar and a sliding groove cooperating with the slider is opened in the middle of the sealing cylinder, the sealing ring is arranged in the middle of the sealing cylinder, and the two sealing members are symmetrically arranged at the two end openings of the sealing cylinder to form a sealed cavity in the sealing cylinder. Based on the above structure, the slider of the current collector is always in a sealed state in the sealing cylinder, thereby avoiding safety hazards in high humidity environments. It should also be noted that since the use of the busbar requires that the contact surface of the busbar be free of rust, in a high temperature and high humidity environment, the busbar is very prone to rust, thereby affecting the transmission efficiency of electricity and even causing more serious safety hazards. In the prior art, sealing is performed by setting a sealing strip at the open end of the busbar. In a high temperature and high humidity environment, the sealing strip is easily hardened due to the material of the sealing strip, and its sealing performance is greatly reduced. In addition, when the slider is sliding, there is still a certain opening in the contact part with the sealing strip, that is, the sealing strip cannot achieve the movable sealing of the slider. The sealing cavity formed by the sealing detection component can effectively seal the collector, thereby overcoming the above problems.

[0009] Furthermore, movable frames are symmetrically arranged on the outer circumference of both ends of the sealing cylinder, and a plurality of adjustment components for adjusting the distance are arranged between the movable frame and the sealing ring, and the plurality of adjustment components are distributed in a circular array with the axis of the sealing cylinder, and the adjustment components include a screw rod and a slider, and the slider is movably arranged on the screw rod, a support frame is hinged on the movable frame, a rotating frame is hinged on the slider, the movable end of the rotating frame is hinged to the middle part of the support frame, and a vertical detection unit or a horizontal detection unit is arranged on the movable end of the support frame. It should be noted that the requirements for the mechanical operation performance test of busbar collectors in Articles 8.1.5 and 10.13 of the national standard GB / T7251.6-2015 "Part 6 of Low-voltage Complete Switchgear and Control Equipment; Busbar Trunk System (Bus Trunk)" are as follows: The busbar trunk system with a sliding contact tapping device should be able to move back and forth 10,000 times along the conductor of the busbar trunk channel, and its sliding contact should carry the rated current under voltage; the sliding speed and sliding distance of the contact wheel of the tapping device should be consistent with its design conditions of use. If the contact wheel is used to support a tool or other mechanical load, its equivalent weight should be suspended during the test. Therefore, it is necessary to consider the use of the busbar according to this requirement. The setting of the adjustment component is precisely to enable the detection unit to move within the set range, thereby improving the accuracy of the detection.

[0010] Furthermore, the sealing member includes: a fixed ring, a movable ring and a motor, the fixed ring is fixedly arranged with the sealing cylinder, a planetary gear set is arranged on the side of the fixed ring away from the sealing ring, the movable ring is rotatably arranged with the fixed ring through the planetary gear set, the motor is arranged on the fixed ring and the output end is connected with the planetary gear set, a plurality of arc notches are arranged on the end face of the fixed ring away from the sealing ring and the end face of the movable ring close to the sealing ring, a plurality of sealing leaves are arranged between the fixed ring and the movable ring, protrusions are arranged on both sides of the end of the sealing leaf and the protrusions are arranged in the arc notches, and when the movable ring rotates, a plurality of the sealing leaves can rotate to realize the opening and closing of the sealing cavity. Based on the above structure, when the movable ring can rotate under the joint action of the motor and the planetary gear set, the sealing leaves are driven to move toward the axis, thereby sealing the sealing cylinder and forming a sealing cavity inside it.

[0011] Furthermore, the number of the adjustment components is 3, the number of the support frames corresponds to the adjustment components, the vertical detection unit is arranged on the support frame away from the slider, the two horizontal detection units are arranged on the support frame close to the slider, the vertical detection unit and the horizontal detection unit both include an ultrasonic phased array probe, the ultrasonic phased array probe is connected to a single-chip microcomputer, a sensor is arranged in the sealing tube, the single-chip microcomputer is also connected to the motor and the sensor signal, and the single-chip microcomputer is also connected to an alarm signal. Based on the above structure, the ultrasonic phased array probe can detect damage on the surface and inside of the busbar, and transmit the damage information and position information to the single-chip microcomputer. Preferably, the number of the adjustment components is 3, which can effectively cover the travel range of the collector.

[0012] Furthermore, a dehumidification turntable is provided at the bottom of the sealing cylinder, and a regular hexagonal dehumidification hole is opened on the inner wall of the dehumidification turntable, and a dehumidification agent is attached to the dehumidification hole by a crystallization processing method, and the dehumidification agent is one or more of lithium chloride, silica gel or zeolite. Based on the above structure, the dehumidification turntable is provided at the bottom of the sealing cylinder, aiming to promote the water molecules in the sealing cylinder to be adsorbed and dehumidified by the physical and chemical properties of the dehumidification agent, thereby assisting in reducing the humidity in the sealing cylinder.

[0013] A method for using a power transmission system includes the following steps: Step 1, installation, installing a current collector and a sealing detection assembly on a busbar, confirming that the insulation resistance between the busbar and the flexible cable and between each phase and the ground is greater than 0.5MΩ; Step 2, sealing, the movable ring rotates under the action of a motor to make the slider of the current collector in a sealed state; Step 3, detection, the current collector moves with the displacement of the electrical equipment, and the ultrasonic phased array probe detects the internal rust of the busbar in real time, and sends the position information to a single-chip microcomputer. It should be noted that based on the above steps, efficient power transmission can be achieved.

[0014] Furthermore, step 3 also includes: a damage threshold of the busbar is set in the single-chip microcomputer, and when the surface damage information detected by the ultrasonic phased array probe reaches the damage threshold, the single-chip microcomputer controls the alarm to issue an accident warning, and then performs processing and maintenance according to the position information recorded by the single-chip microcomputer. It should be noted that the damage to the busbar in a high temperature and high humidity environment can be effectively detected to avoid the occurrence of safety accidents.

[0015] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0016] 1. This application can effectively transmit power in a high temperature and high humidity environment through a sealed detection component, and can effectively reduce the damage to the busbar in a high temperature and high humidity environment;

[0017] 2. This application can detect the surface and internal damage of the busbar in an all-round and multi-level manner through the ultrasonic phased array probe, thereby reducing the occurrence of safety accidents;

[0018] 3. This application can improve the maintenance efficiency of the busbar and provide accident warning by recording the damage and location information on the busbar. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 It is a schematic diagram of the structure of the sealing detection component and the busbar;

[0022] Figure 3 It is a structural schematic diagram of the sealing detection component;

[0023] Figure 4 It is a structural schematic diagram of the sealing cylinder and the dehumidification rotary disc;

[0024] Figure 5 This is a schematic diagram of the structure of Example 2.

[0025] Marks and corresponding parts names in the attached drawings:

[0026] 1-fixed frame, 2-conductor wire, 3-collector, 31-slider, 4-sealing strip, 5-sealing detection assembly, 51-sealing cylinder, 52-sealing ring, 53-seal, 531-fixed ring, 532-movable ring, 533-sealing leaf, 54-movable frame, 55-adjusting assembly, 551-screw, 552-slider, 553-support frame, 554-rotating frame, 555-vertical detection unit, 556-horizontal detection unit, 56-dehumidification turntable, 561-dehumidification hole. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and drawings. The schematic implementation modes and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention. It should be noted that the present invention is already in the actual development and use stage.

[0028] Embodiment 1:

[0029] Please refer to the attached Figures 1 to 4As shown in the figure, a power transmission system includes a fixing frame 1, a busbar 2 and a current collector 3, wherein the busbar 2 is fixed on the fixing frame 1, the current collector 3 is slidably arranged on the busbar 2, a sealing strip 4 is arranged at the open end of the busbar 2, and the sealing strip 4 movably seals the current collector 3, and a sealing detection component 5 is also slidably arranged on the busbar 2, the sealing detection component 5 wraps the slider 31 of the current collector 3 and seals the contact part between the slider 31 and the busbar 2, the sealing detection component 5 includes: a sealing cylinder 51, a sealing ring 52 and two sealing members 53, the sealing cylinder 51 is sleeved on the outside of the busbar 2 and a sliding groove cooperating with the slider 31 is opened in the middle of the sealing cylinder 51, the sealing ring 52 is arranged in the middle of the sealing cylinder 51, and the two sealing members 53 are symmetrically arranged at the two end openings of the sealing cylinder 51, so as to form a sealing cavity in the sealing cylinder 51.

[0030] It should be noted that in the prior art, in certain specific complex environments, the machine needs to be powered, and the common power transmission system is the busbar 2. Taking the oxygenated zone environment as an example, the use environment of the oxygenated zone is usually high temperature and high humidity. In this environment, it is easy to cause damage to the component materials of the busbar 2, reduce the mechanical strength, and crack the outer skin of the circuit wire. In view of the above situation, the applicant has proposed a power transmission system that can be used stably in a high temperature and high humidity environment, and its specific structure is: a sealing detection component 5 is also slidably arranged on the busbar 2, and the sealing detection component 5 wraps the slider 31 of the collector 3 and seals the contact part between the slider 31 and the busbar 2, and the sealing detection component 5 includes: a sealing cylinder 51, a sealing ring 52 and two sealing members 53, the sealing cylinder 51 is sleeved on the outside of the busbar 2 and a sliding groove matching the slider 31 is opened in the middle of the sealing cylinder 51, the sealing ring 52 is arranged in the middle of the sealing cylinder 51, and the two sealing members 53 are symmetrically arranged at the two end openings of the sealing cylinder 51, so as to form a sealed cavity in the sealing cylinder 51. Based on the above structure, the slider 31 of the current collector 3 is always in a sealed state in the sealing tube 51, thereby avoiding the safety hazard in a high humidity environment. It should also be noted that since the use of the busbar 2 requires that the sliding contact surface of the busbar 2 be free of rust, in a high temperature and high humidity environment, the busbar 2 is very prone to rust, thereby affecting the transmission efficiency of electricity and even causing more serious safety hazards. In addition, in the prior art, a sealing strip 4 is provided at the open end of the busbar 2 for sealing. In a high temperature and high humidity environment, the sealing strip 4 is easily hardened due to the material of the sealing strip 4, and its sealing performance is greatly reduced. In addition, when the slider 31 is sliding, there is still a certain opening in the contact part with the sealing strip 4, that is, the sealing strip 4 cannot achieve the movable sealing of the slider 31. The sealing cavity formed by the sealing detection component 5 can effectively seal the current collector 3, thereby overcoming the above problems.

[0031] It should be noted that movable frames 54 are symmetrically arranged on the outer circumference of both ends of the sealing cylinder 51, and a plurality of adjustment components 55 for adjusting the distance are arranged between the movable frame 54 and the sealing ring 52. The plurality of adjustment components 55 are distributed in a circular array with the axis of the sealing cylinder 51, and the adjustment components 55 include a screw rod 551 and a slider 552. The slider 552 is movably arranged on the screw rod 551. A support frame 553 is hinged on the movable frame 54, and a rotating frame 554 is hinged on the slider 552. The movable end of the rotating frame 554 is hinged to the middle part of the support frame 553, and the movable end of the support frame 553 is provided with a vertical detection unit 555 or a horizontal detection unit 556. It should be noted that the requirements for the mechanical operation performance test of the busbar 2 collector 3 in Articles 8.1.5 and 10.13 of the national standard GB / T7251.6-2015 "Part 6 of Low-voltage Complete Switchgear and Control Equipment; Busbar Trunk System (Bus Trunk)" are as follows: The busbar trunk system with a sliding contact tapping device should be able to move back and forth 10,000 times along the conductor of the busbar trunk channel, and its sliding contact should carry the rated current under voltage; the sliding speed and sliding distance of the contact wheel of the tapping device should be consistent with its design conditions of use. If the contact wheel is used to support a tool or other mechanical load, its equivalent weight should be suspended during the test. Therefore, it is necessary to consider the use occasions of the busbar 2 according to this requirement. The setting of the adjustment component 55 is precisely to enable the detection unit to move within the set range, thereby improving the accuracy of the detection.

[0032] It should be noted that the sealing member 53 includes: a fixed ring 531, a movable ring 532 and a motor. The fixed ring 531 is fixedly arranged with the sealing cylinder 51. A planetary gear set is arranged on the side of the fixed ring 531 away from the sealing ring 52. The movable ring 532 is rotatably arranged with the fixed ring 531 through the planetary gear set. The motor is arranged on the fixed ring 531 and the output end is connected with the planetary gear set. A plurality of arc grooves are arranged on the end face of the fixed ring 531 away from the sealing ring 52 and the end face of the movable ring 532 close to the sealing ring 52. A plurality of sealing leaves 533 are arranged between the fixed ring 531 and the movable ring 532. Protrusions are arranged on both side surfaces of the end of the sealing leaf 533 and the protrusions are arranged in the arc grooves. When the movable ring 532 rotates, the plurality of sealing leaves 533 can rotate to realize the opening and closing of the sealing cavity. Based on the above structure, when the movable ring 532 can rotate under the joint action of the motor and the planetary gear set, the sealing leaf 533 is driven to move toward the axis, thereby sealing the sealing cylinder 51 and forming a sealing cavity therein. The tip of the sealing leaf 533 is made of plastic material.

[0033] It should be noted that the number of the adjustment components 55 is 3, the number of the support frames 553 corresponds to the adjustment components 55, the vertical detection unit 555 is arranged on the support frame 553 away from the slider 31, and the two horizontal detection units 556 are arranged on the support frame 553 close to the slider 31. The vertical detection unit 555 and the horizontal detection unit 556 both include an ultrasonic phased array probe, and the ultrasonic phased array probe is connected to a single-chip microcomputer. A sensor is arranged in the sealing tube 51, and the single-chip microcomputer is also connected to the motor and the sensor signal. The single-chip microcomputer is also connected to an alarm signal. Based on the above structure, the ultrasonic phased array probe can detect damage on the surface and inside of the busbar 2, and transmit the damage information and position information to the single-chip microcomputer. Preferably, the number of the adjustment components 55 is 3, which can effectively cover the travel range of the collector 3.

[0034] It should be noted that a dehumidification turntable 56 is provided at the bottom of the sealing tube 51, and a regular hexagonal dehumidification hole 561 is opened on the inner wall of the dehumidification turntable 56. A dehumidification absorbent is attached to the dehumidification hole 561 by a crystallization process, and the dehumidification absorbent is one or more of lithium chloride, silica gel or zeolite. Based on the above structure, the dehumidification turntable 56 is provided at the bottom of the sealing tube 51, aiming to promote the water molecules in the sealing tube 51 to be adsorbed and dehumidified by the physical and chemical properties of the dehumidification absorbent, thereby assisting in reducing the humidity in the sealing tube 51.

[0035] A method for using a power transmission system includes the following steps: Step 1, installation, installing the current collector 3 and the sealing detection component 5 on the busbar 2, confirming that the insulation resistance between the busbar and the flexible cable and between each phase and the ground is greater than 0.5MΩ; Step 2, sealing, the movable ring 532 rotates under the action of the motor to make the slider 31 of the current collector 3 in a sealed state; Step 3, detection, the current collector 3 moves with the displacement of the electrical equipment, and the ultrasonic phased array probe detects the internal rust of the busbar 2 in real time, and sends the position information to the single-chip microcomputer. It should be noted that based on the above steps, efficient power transmission can be achieved.

[0036] It should be noted that step 3 also includes: a damage threshold of the busbar 2 is set in the single-chip microcomputer. When the surface damage information detected by the ultrasonic phased array probe reaches the damage threshold, the single-chip microcomputer controls the alarm to issue an accident warning, and then performs processing and maintenance according to the position information recorded by the single-chip microcomputer. It should be noted that the damage to the busbar 2 in a high temperature and high humidity environment can be effectively detected to avoid the occurrence of safety accidents.

[0037] Embodiment 2:

[0038] like Figure 5As shown, this embodiment is carried out on the basis of Example 1. This embodiment is an extension of Example 1. This embodiment only records the parts that are different from Example 1, specifically a power transmission system, including a fixed frame 1, a busbar 2 and a collector 3. The busbar 2 is a cylindrical structure with a right-angled tooth groove at the lower end, and the slider 31 of the collector 3 cooperates with the direct tooth groove. As can be seen from Example 1, when the present application is used for the busbar 2 structure in the prior art, since the upper end surface of the busbar 2 structure in the prior art is flat, and the lower end is provided with an opening that matches the slider 31 of the collector 3, when the sealing leaf 533 performs a rotational seal, the plastic portion of the tip contacts the busbar 2, but is limited by the cross-sectional shape of the busbar 2. When the left and right ends of the busbar 2 contact the sealing leaf 533, the sealing leaves 533 at the upper and lower ends do not contact the upper and lower ends of the busbar 2. Only when the sealing leaf 533 rotates further, the sealing leaves 533 at the left and right sides undergo plastic deformation, and the sealing leaves 533 at the upper and lower ends contact the busbar 2. It can be seen that the seal 53 in Example 1 has some defects.

[0039] In view of this, the applicant proposes to optimize the structure of the busbar 2 into a hollow cylinder, and the lower end that contacts the slider 31 is provided with an opening. The structure with a cross-section that is approximately circular can better fit the sealing leaf 533, which can overcome the above-mentioned problems. Furthermore, since the collector 3 needs to move together with the sealing detection component 5, there is a flowing airflow at the open end of the busbar 2. Relatively speaking, when the sealing detection component 5 moves, the airflow facing the sealing leaf 533 diverges from the busbar 2 to the outside, and its flow rate is faster than that inside the sealing cylinder 51. Based on the principle of aerodynamics, the remaining water molecules inside will move from the center to both ends, thereby avoiding the water molecules from contacting the slider 31, thereby achieving waterproofing.

[0040] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A power transmission system, comprising a fixing frame (1), a busbar (2) and a current collector (3), wherein the busbar (2) is fixed on the fixing frame (1), the current collector (3) is slidably arranged on the busbar (2), a sealing strip (4) is arranged at the open end of the busbar (2), and the sealing strip (4) movably seals the current collector (3), characterized in that: A sealing detection component (5) is also slidably arranged on the busbar (2), the sealing detection component (5) wraps the slider (31) of the collector (3) and seals the contact portion between the slider (31) and the busbar (2), the sealing detection component (5) comprising: a sealing cylinder (51), a sealing ring (52) and two sealing members (53), the sealing cylinder (51) being sleeved on the outside of the busbar (2) and having a sliding groove cooperating with the slider (31) in the middle of the sealing cylinder (51), the sealing ring (52) being arranged in the middle of the sealing cylinder (51), and the two sealing members (53) being symmetrically arranged at the two end openings of the sealing cylinder (51) for forming a sealed cavity in the sealing cylinder (51); Wherein, movable frames (54) are symmetrically arranged on the outer circumference of both ends of the sealing cylinder (51); a support frame (553) is hinged on the movable frame (54); a vertical detection unit (555) or a horizontal detection unit (556) is arranged at the movable end of the support frame (553); the vertical detection unit (555) and the horizontal detection unit (556) both include an ultrasonic phased array probe, which can detect damage on the surface and inside of the busbar (2).

2. A power transmission system according to claim 1, characterized in that: A plurality of adjustment components (55) for adjusting the distance are arranged between the movable frame (54) and the sealing ring (52); the plurality of adjustment components (55) are distributed in a circular array around the axis of the sealing cylinder (51); the adjustment components (55) include a screw rod (551) and a slider (552); the slider (552) is movably arranged on the screw rod (551); a rotating frame (554) is hingedly connected to the slider (552); and a movable end of the rotating frame (554) is hingedly connected to the middle of the support frame (553).

3. A power transmission system according to claim 2, characterized in that: The sealing member (53) comprises: a fixed ring (531), a movable ring (532) and a motor; the fixed ring (531) is fixedly arranged with the sealing cylinder (51); a planetary gear set is arranged on a side of the fixed ring (531) away from the sealing ring (52); the movable ring (532) is rotatably arranged with the fixed ring (531) via the planetary gear set; the motor is arranged on the fixed ring (531) and an output end is connected to the planetary gear set; the fixed ring (531) ) are provided with a plurality of arc grooves on the end surface away from the sealing ring (52) and the end surface of the movable ring (532) close to the sealing ring (52); a plurality of sealing leaves (533) are provided between the fixed ring (531) and the movable ring (532); protrusions are provided on both side surfaces of the end of the sealing leaf (533) and the protrusions are arranged in the arc grooves; when the movable ring (532) rotates, the plurality of sealing leaves (533) can rotate to realize the opening and closing of the sealing cavity.

4. A power transmission system according to claim 3, characterized in that: The number of the adjustment components (55) is 3, the number of the support frames (553) corresponds to the number of the adjustment components (55), the vertical detection unit (555) is arranged on the support frame (553) away from the slider (31), the two horizontal detection units (556) are arranged on the support frame (553) close to the slider (31), the ultrasonic phased array probe is connected to a single chip microcomputer, a sensor is arranged in the sealing cylinder (51), the single chip microcomputer is also connected to the motor and the sensor signal, and the single chip microcomputer is also connected to the alarm signal.

5. A power transmission system according to claim 1, characterized in that: A dehumidification rotary disk (56) is arranged at the bottom of the sealing cylinder (51), and a regular hexagonal dehumidification hole (561) is opened on the inner wall of the dehumidification rotary disk (56). A desiccant is attached to the dehumidification hole (561) by a crystallization processing method, and the desiccant is one or more of lithium chloride, silica gel or zeolite.

6. A method for using a power transmission system, characterized in that: A power transmission system according to any one of claims 1 to 5, comprising the following steps: Step 1, installation, installing the current collector (3) and the sealing detection assembly (5) on the busbar (2), and confirming that the insulation resistance between the busbar and the flexible cable and between each phase and the ground is greater than 0.5 MΩ; Step 2, sealing, the movable ring (532) is rotated under the action of the motor, so that the slider (31) of the current collector (3) is in a sealed state; Step 3, detection, the current collector (3) moves with the displacement of the electrical equipment, and the ultrasonic phased array probe detects the internal rust of the busbar (2) in real time, and sends the position information to the single chip microcomputer.

7. The method for using a power transmission system according to claim 6, characterized in that: Step 3 also includes: a damage threshold of the busbar (2) is set in the single chip microcomputer; when the surface damage information detected by the ultrasonic phased array probe reaches the damage threshold, the single chip microcomputer controls the alarm to issue an accident warning, and then performs processing and maintenance according to the position information recorded by the single chip microcomputer.

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