Hand-held miniature bus on-off device and on-off method

Abstract

The invention discloses a handheld miniature bus breaking device and a breaking method. The handheld miniature bus breaking device comprises a handheld breaking unit, a breaking driving unit and a bus clamping unit, the handheld breaking unit comprises a breaking base and a lifting tool apron provided with a breaking cutter; the lifting tool apron is mounted at the top of the breaking base in a lifting manner; the top of the on-off base is provided with a bus placing seat used in cooperation with the on-off cutter. The on-off driving unit is arranged on the on-off base, is connected with the lifting tool apron and is used for driving the lifting tool apron to lift so as to cut off the miniature bus; the bus clamping units are arranged on the two sides of the on-off base and used for clamping the two ends of a miniature bus. According to the handheld miniature bus breaking device and breaking method provided by the invention, the two ends of the miniature bus can be stably clamped and supported, and great potential safety hazards caused by the fact that the electrified miniature bus after being cut off is likely to directly fall on the ground are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of small busbar breaking, and in particular to a handheld small busbar breaking device and a breaking method. Background Art

[0002] A busbar is a conductive material used to transmit electrical energy in a power system. It is usually made of copper or aluminum and has good conductivity and mechanical strength. Busbars are widely used in power equipment and systems to distribute electrical energy and connect different electrical equipment. A busbar disconnecting device is a tool or device specifically used to cut, disconnect or connect busbars.

[0003] The existing handheld small busbar disconnecting device cannot stably clamp and support the small busbar during actual use, so that the energized small busbar is easily dropped directly to the ground after being cut off, which poses a great safety hazard. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a handheld small busbar disconnecting device, which can firmly clamp and support both ends of the small busbar, so as to prevent the energized small busbar from falling directly to the ground after being cut off, which would bring great safety hazards.

[0005] The present invention adopts the following technical solution.

[0006] In a first aspect, the present invention provides a handheld small busbar breaking device, comprising: a handheld breaking unit and a breaking drive unit, the handheld breaking unit comprising: a breaking base and a lifting knife seat provided with a breaking cutter; the lifting knife seat is installed on the top of the breaking base in a liftable manner; the top of the breaking base is provided with a busbar placement seat used in conjunction with the breaking cutter; the breaking drive unit is arranged on the breaking base and connected to the lifting knife seat, and is used to drive the lifting knife seat to lift and lower to cut the small busbar; the handheld small busbar breaking device also comprises: a busbar clamping unit; the busbar clamping unit is arranged on both sides of the breaking base, and is used to clamp the two ends of the small busbar.

[0007] Preferably, the breaking drive unit comprises: a driving motor and two threaded rods; the two threaded rods are respectively arranged on both sides of the breaking cutter, and the two are arranged in parallel; wherein, one end of one threaded rod is inserted into the interior of the breaking base and is coaxially connected to the output end of the driving motor; one end of the other threaded rod is inserted into the interior of the breaking base, and is transmission-connected to the output end of the driving motor through a chain sprocket assembly; the lifting knife seat is sleeved on the two threaded rods, and is threadedly connected to the two threaded rods respectively.

[0008] Preferably, a driving cavity is provided inside the disconnect base; the chain sprocket assembly is arranged inside the driving cavity; an inspection cover corresponding to the driving cavity is installed at the lower end of the disconnect base, and two groups of hinged plates that are tightly pressed against the corresponding inspection covers are hinged on the lower side wall of the disconnect base.

[0009] Preferably, the breaking drive unit further includes: two groups of lifting guide assemblies respectively arranged on the left and right sides of the breaking base; each group of the lifting guide assemblies includes: two fixing ears respectively installed on the lifting knife seat and the breaking base, and the two fixing ears are connected by a telescopic guide cylinder.

[0010] Preferably, one end of each threaded rod inserted into the interior of the disconnect base is fixedly mounted with a docking ear, the docking ear is inserted into the disconnect base through a positioning plug, and the docking ear and the disconnect base are fastened and connected by a plurality of groups of evenly distributed positioning bolts.

[0011] Preferably, the busbar clamping unit is detachably mounted on the front and rear sides of the disconnecting base; the busbar clamping unit comprises two symmetrically arranged bending support frames, and the bottom of each bending support frame is detachably connected to the side wall of the disconnecting base; a rectangular frame is arranged on the top of each bending support frame, and the height of each rectangular frame is adapted to the height of the disconnecting cutter; the rectangular frames located on the two bending support frames are respectively used to fix and clamp the two ends of the small busbar to be disconnected.

[0012] Preferably, two pairs of symmetrical supporting ears are fixedly installed on both sides of the rectangular frame, a bidirectional screw rod is rotatably connected between one pair of supporting ears, and a guide rod is fixedly connected between the other pair of supporting ears, the bidirectional threads on the bidirectional screw rod are respectively connected to symmetrical threaded sleeves, and the sliding sleeve on the guide rod is provided with two guide sleeves, a moving bar is fixedly connected between each guide sleeve and the corresponding threaded sleeve, and strip openings matching the moving bar are opened on both sides of the rectangular frame, an insulating clamping sleeve is fixedly installed on one side of each moving bar close to the center of the rectangular frame, and each pair of the insulating clamping sleeves is against the side wall of the small busbar.

[0013] Preferably, a carrying handle is rotatably connected to the center of the upper side wall of the lifting knife seat, and the carrying handle is arranged in an inverted U shape.

[0014] In a second aspect, the present invention provides a handheld small busbar disconnection method, the disconnection method is applicable to the above-mentioned disconnection device, and the disconnection method comprises the following steps:

[0015] Place the small busbar to be cut on the busbar placement seat, and pass both ends of the small busbar through the two busbar clamping units respectively, and clamp and fix the small busbar through the busbar clamping units;

[0016] After the small busbar is fixed and clamped, obtain the specification parameters and cutting requirements of the small busbar;

[0017] Calculate the optimal cutting pressure based on the input hardness and thickness of the small busbar material;

[0018] According to the calculation result of cutting pressure, the initial speed of the driving motor is set;

[0019] Turn on the drive motor to cut the small busbar, monitor the cutting status in real time, and ensure the dynamic adaptation of cutting pressure and speed;

[0020] The two parts of the cut small busbar are clamped in two busbar clamping units respectively, and the driving motor outputs the cutting process data and performance indicators at the same time;

[0021] According to the output data and indicators, an adaptive cutting control algorithm is designed to optimize the motor speed by judging the cutting pressure of the small busbar.

[0022] Preferably, the adaptive cropping control algorithm formula is as follows:

[0023]

[0024] Among them, P is the cutting pressure, H is the ambient humidity, γ is the speed adjustment coefficient, T is the ambient temperature, α is the temperature influence factor, M is the hardness of the busbar material, σ is the conductivity, d is the thickness, ρ is the thread density, and the lower limit threshold of the cutting pressure is set to P. low , the upper limit threshold of cutting pressure is P high ;

[0025] If P<P low , indicating that the pressure of the cutting knife is insufficient, which may cause the busbar to fail to be cut off, and the drive motor speed needs to be adjusted;

[0026] If P low ≤P≤P high , indicating that the pressure of the cutting blade is within a reasonable range, the cutting task is performed normally, the equipment operates normally, and no adjustment is required;

[0027] If P>P high , indicating that the pressure of the cutting knife exceeds the safe range, which may damage the cutting knife or busbar. It is necessary to stop the operation and reduce the speed of the driving motor.

[0028] The beneficial effect of the present invention lies in that, compared with the prior art, the present invention can clamp and fix the two ends of the small busbar that needs to be cut off by arranging busbar clamping units on both sides of the disconnecting base, so that after the small busbar is cut off, its two cut parts are still clamped on the busbar clamping unit, preventing the cut small busbar from falling to the ground and causing safety hazards.

[0029] In addition, the present invention also provides an adaptive control algorithm for small busbar breaking, which can judge the size of the cutting pressure according to the small busbar breaking process data and performance indicators, and adjust the motor speed according to the judgment result to avoid damage to the breaking cutter or busbar due to improper pressure. According to the comparison between the calculation result and the threshold value, the operating parameters of the breaking tool are adjusted in real time to achieve efficient and safe cutting control. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0031] Figure 1 This is a schematic diagram of the overall structure of a handheld small busbar disconnecting device proposed by the present invention;

[0032] Figure 2 A schematic diagram of the structure of a breaking drive unit of a handheld small busbar breaking device proposed by the present invention;

[0033] Figure 3 A schematic diagram of the coordination structure of an inspection cover and a disconnecting base of a handheld small busbar disconnecting device proposed by the present invention;

[0034] Figure 4 A schematic diagram of the matching structure of a busbar clamping unit and a breaking base of a handheld small busbar breaking device proposed by the present invention;

[0035] Figure 5 A schematic diagram of the structure of a busbar clamping unit of a handheld small busbar disconnecting device proposed by the present invention;

[0036] Figure 6 This is a schematic diagram of the coordination structure of a breaking base and a plurality of wedge blocks of a handheld small busbar breaking device proposed by the present invention.

[0037] Explanation of the reference numerals: 100 hand-held breaking unit, 101 breaking base, 102 lifting knife seat, 103 breaking cutter, 104 busbar placement seat, 105 carrying handle, 106 small busbar, 107 wedge block, 200 breaking drive unit, 201 threaded rod, 202 transmission sprocket, 203 transmission chain, 204 driving motor, 205 rotating support seat, 206 inspection cover, 207 hinge plate, 208 anti-slip plate, 209 lifting guide assembly, 209a fixing ear, 209b guide cylinder, 209c guide column, 300 busbar clamping unit, 301 bending support frame, 302 docking ear, 303 fastening bolt, 304 positioning plug, 305 rectangular frame, 306 supporting ear, 307 bidirectional screw rod, 308 threaded sleeve, 309 moving bar, 310 insulating clamping sleeve, 311 guide rod, 312 guide sleeve. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0041] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0042] Example

[0043] Reference Figure 1-Figure 6 , which is an embodiment of the present invention, provides a handheld small busbar breaking device, including: a handheld breaking unit 100, a breaking drive unit 200 and a busbar clamping unit 300.

[0044] Among them, the handheld breaking unit 100 includes a breaking base 101 and a lifting knife seat 102 located directly above the breaking base 101. A push switch for controlling the lifting and lowering of the breaking cutter 103 is installed on the breaking base 101. The lifting knife seat 102 and the breaking base 101 are made of lightweight alloy materials. Symmetrical wedge blocks 107 are fixedly installed on both sides of the lower side wall of the breaking base 101, and each wedge block 107 is made of austenitic stainless steel. The arrangement of multiple wedge blocks 107 improves the stability of the contact between the breaking base 101 and the placement surface. A carrying handle 105 is rotatably connected to the center of the upper side wall of the lifting knife seat 102, and the carrying handle 105 is arranged in an inverted U shape. The arrangement of the carrying handle 105 makes it easy to carry the breaking tool.

[0045] A cutting cutter 103 is fixedly installed at the center of the lower end of the lifting knife seat 102. The cutting cutter 103 in the present invention is made of high-hardness alloy steel material and is precisely processed and heat-treated to ensure that the cutting edge is sharp and wear-resistant. A busbar placement seat 104 used in conjunction with the cutting cutter 103 is fixedly installed at the center of the upper side wall of the breaking base 101. The busbar placement seat 104 is arranged directly below the cutting cutter 103. The busbar placement seat 104 is used to prevent small busbars that need to be cut and to place the part to be cut directly below the cutting cutter 103.

[0046] Furthermore, the tools such as the breaking cutter 103 , the breaking base 101 and the busbar placement seat 104 are fully subjected to insulation spraying treatment, and materials with high insulation grades such as epoxy resin are used to ensure electrical isolation between the tools and the live small busbar 106 .

[0047] Secondly, the breaking drive unit 200 includes: a driving motor 204, a threaded rod 201 rotatably connected to both ends of the breaking base 101, and two threaded rods 201 are respectively arranged on both sides of the breaking cutter 103, and the two are arranged in parallel. One end of one threaded rod 201 is inserted into the inside of the breaking base 101 and is coaxially connected to the output end of the driving motor 204; one end of the other threaded rod 201 is inserted into the inside of the breaking base 101 and is connected to the output end of the driving motor 204 through a chain sprocket assembly.

[0048] Specifically, the chain sprocket assembly includes a transmission chain 203 and two transmission sprockets. The lower end of each threaded rod 201 is inserted downward into the breaking base 101 and fixedly sleeved with a corresponding transmission chain 203. The two transmission sprockets 202 are connected by the transmission chain 203. A driving motor 204 is fixedly installed in one of the driving cavities. The output shaft of the driving motor 204 is fixedly connected to the lower end of one of the threaded rods 201. Both threaded rods 201 are upwardly penetrated through the lifting knife seat 102, and the lifting knife seat 102 is threadedly connected to the threaded rods 201. A rotating support seat 205 is fixedly installed in one of the driving cavities. The lower end of one of the threaded rods 201 is rotatably connected to the top of the rotating support seat 205. The threaded rod 205 can be stably supported by the setting of the rotating support seat 205.

[0049] Furthermore, a driving cavity matching the transmission chain 203 is provided in the lower side wall of the disconnect base 101, and an inspection cover 206 corresponding to the driving cavity is installed at the lower end of the disconnect base 101, and two groups of hinged plates 207 that are tightly pressed against the corresponding inspection covers 206 are hinged on the lower side wall of the disconnect base 101. Through the setting of the inspection cover 206, it is convenient to inspect and maintain components such as the driving motor 204 in the driving cavity.

[0050] Furthermore, the breaking drive unit 200 also includes a lifting guide assembly 209 for guiding and limiting the lifting and lowering of the breaking cutter 103. The lifting guide assembly 209 includes two pairs of fixed ears 209a respectively mounted on the lifting knife seat 102 and the breaking base 101, and the two fixed ears 209a are connected by a telescopic guide cylinder.

[0051] Specifically, the telescopic guide cylinder includes: a guide cylinder 209b and a guide column 209c. The guide cylinder 209b is fixedly installed on one set of fixed ears 209a, and the guide column 209c is fixedly installed on the lower side wall of the other set of fixed ears 209a. Each guide column 209c is vertically slidably connected with the corresponding guide cylinder 209b; through the coordinated use of the guide cylinder 209b and the guide column 209c, the lifting and lowering of the lifting knife seat 102 and the cutting knife 103 can be guided and limited, ensuring that the cutting knife 103 can stably cut the small busbar 106.

[0052] Furthermore, the busbar clamping unit 300 can be detachably mounted on the front and rear sides of the disconnect base 101; the busbar clamping unit 300 includes two bending support frames 301 respectively fixedly mounted on both sides of the disconnect base 101, and a docking ear 302 is fixedly mounted on the lower end of each bending support frame 301, and the docking ear 302 is inserted into the disconnect base 101 through a positioning plug block 304, and the docking ear 302 and the disconnect base 101 are fastened and connected through a plurality of groups of evenly distributed positioning bolts. The use of the positioning plug block 304 improves the coordination stability of the bending support frame 301, the docking ear 302 and the disconnect base 101, and the coordinated use of a plurality of groups of positioning bolts 303 can flexibly remove the busbar clamping unit 300 from the disconnect base 101, so as to facilitate its replacement and maintenance.

[0053] A rectangular frame 305 is fixedly installed on the top of each bending support frame 301, and the height of each rectangular frame 305 is adapted to the height of the cutting knife 103, so that after the small busbar to be cut is placed on the busbar placement seat 104, its two ends can pass through the inside of the two rectangular frames 305. Two pairs of symmetrical supporting ears 306 are fixedly installed on both sides of the rectangular frame 305, one pair of supporting ears 306 is rotatably connected with a bidirectional screw rod 307, and the other pair of supporting ears 306 is fixedly connected with a guide rod 311, and the bidirectional screw rod 307 is threadedly connected with a symmetrical threaded sleeve 308, and the guide rod 311 is slidably sleeved with two guide sleeves 312, each guide sleeve 312 and the corresponding threaded sleeve 308 are fixedly connected with a moving bar 309, and strip openings matching the moving bar 309 are opened on both sides of the rectangular frame 305, and an insulating clamping sleeve 310 is fixedly installed on one side of each moving bar 309 close to the center of the rectangular frame 305, and each pair of insulating clamping sleeves 310 are against the side wall of the small busbar 106.

[0054] During use, the small busbar 106 that needs to be cut is passed through the rectangular frame 305, the disconnecting cutter 103 and the busbar placement seat 104 in turn, and then the bidirectional screw rod 307 is rotated forward, and the threaded sleeve 308 threadedly connected to the bidirectional screw rod 307 drives the insulating clamping sleeve 310 to firmly clamp the small busbar 106 through the moving bar 309, and then the push-type switch is used to control the driving motor 204 to drive the two threaded rods 201 to rotate forward, and the lifting knife seat 102 threadedly connected to the threaded rod 201 drives the disconnecting cutter 103 to descend, thereby cutting the small busbar 106. The cut small busbar 106 can be firmly clamped by two pairs of insulating clamping sleeves 310, which effectively solves the defect that the energized small busbar 106 is easy to fall to the ground after cutting, posing a great safety hazard.

[0055] Another embodiment of the present invention provides a breaking method of a handheld small busbar breaking device. The breaking method is applicable to the breaking device in any one of the above embodiments. The breaking method comprises the following steps:

[0056] S1: Obtain busbar specification related parameters and cutting requirements;

[0057] The small busbar to be cut is placed on the busbar placement seat 104, and the two ends of the small busbar are passed through the two busbar clamping units 300 respectively, and the small busbar is clamped and fixed by the busbar clamping units 300; after the small busbar is fixed and clamped, the specification parameters and cutting requirements of the small busbar are obtained by configuring the intelligent sensor.

[0058] The obtained busbar specification data includes key parameters such as material type, thickness and conductivity. The sensor provides real-time feedback of environmental parameters to assist in calculating the optimal cutting pressure.

[0059] S2: Calculate the optimal cutting pressure based on the input busbar material hardness and thickness as follows:

[0060] P op =k 1 ·M+k 2 ·d+k 3 ·σ

[0061] Among them, P op is the optimal cutting pressure, M is the hardness of the busbar material, d is the thickness, σ is the conductivity, k 1 , k 2 and k 3 is the adjustment coefficient;

[0062] Correct the environmental parameters. The specific formula is as follows:

[0063] P fin =P op ·(1+α·T)

[0064] Where, T is the ambient temperature, and α is the temperature influence factor;

[0065] S3: According to the calculation result of cutting pressure, the initial speed of the driving motor is set as follows:

[0066] ν mo =γ·P fin

[0067] Among them, γ is the speed adjustment coefficient;

[0068] Dynamically adjust the thread density to ensure that the contact pressure between the cutter and the main line is always maintained in the optimal range:

[0069] Δρ=η·(P mea -P fin )

[0070] Among them, Δρ is the thread adjustment amount, η is the adjustment sensitivity, P meaThe pressure measured by the real-time pressure sensor;

[0071] S4: Turn on the drive motor to cut the small busbar, monitor the cutting status in real time, and ensure the dynamic adaptation of pressure and speed;

[0072] In specific applications, the built-in pressure sensor of the breaking tool is used to detect the actual cutting pressure, feed back the data to the control terminal in real time, and automatically record the changing data of the cutting pressure and the number of revolutions of the driving motor during the cutting process, providing support for the subsequent optimization of the adaptive cutting control algorithm;

[0073] S5: The two parts of the cut small busbar are clamped in two busbar clamping units 300 respectively, and the motor is driven to output cutting process data and performance indicators;

[0074] Output key data such as cutting pressure, motor speed and cutting time, and generate performance reports based on the data, including cutting efficiency, power consumption and equipment usage status;

[0075] S6: Based on the output data, indicators and real-time data, an adaptive cutting control algorithm is designed to optimize the motor speed by judging the cutting pressure of the small busbar.

[0076] Use machine learning algorithms to analyze data from multiple cutting tasks, predict the optimal cutting pressure for busbars of different specifications, optimize the adjustment coefficient based on long-term data, and improve the adaptability of the control algorithm.

[0077] The formula of adaptive cutting control algorithm is as follows:

[0078]

[0079] Among them, P is the cutting pressure, H is the ambient humidity, ρ is the thread density, and the lower limit threshold of the cutting pressure is set to P low , the upper limit threshold of cutting pressure is P high ;

[0080] If P<P low , indicating that the pressure of the cutting knife is insufficient, which may cause the busbar to fail to be cut off, and the drive motor speed needs to be adjusted;

[0081] If P low ≤P≤P high , indicating that the pressure of the cutting blade is within a reasonable range, the cutting task is performed normally, the equipment operates normally, and no adjustment is required;

[0082] If P>P high , indicating that the pressure of the cutting knife exceeds the safe range, which may damage the cutting knife or busbar. It is necessary to stop the operation and reduce the speed of the driving motor;

[0083] By setting P low and P high, to achieve effective monitoring of the cutting process, to avoid damage to the cutting knife or busbar due to improper pressure, and to adjust the operating parameters of the breaking tool in real time based on the comparison between the calculation results and the threshold value, to achieve efficient and safe cutting control.

[0084] The beneficial effect of the present invention lies in that, compared with the prior art, the present invention can clamp and fix the two ends of the small busbar that needs to be cut off by arranging busbar clamping units on both sides of the disconnecting base, so that after the small busbar is cut off, its two cut parts are still clamped on the busbar clamping unit, preventing the cut small busbar from falling to the ground and causing safety hazards.

[0085] In addition, the present invention also provides an adaptive control algorithm for small busbar breaking, which can judge the size of the cutting pressure according to the small busbar breaking process data and performance indicators, and adjust the motor speed according to the judgment result to avoid damage to the breaking cutter or busbar due to improper pressure. According to the comparison between the calculation result and the threshold value, the operating parameters of the breaking tool are adjusted in real time to achieve efficient and safe cutting control.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A handheld small busbar breaking device, comprising: The handheld breaking unit (100) and the breaking drive unit (200) are characterized by: The handheld disconnecting unit (100) comprises: a disconnecting base (101) and a lifting knife seat (102) provided with a disconnecting cutter (103); the lifting knife seat (102) is installed on the top of the disconnecting base (101) in a liftable manner; and a busbar placement seat (104) used in conjunction with the disconnecting cutter (103) is provided on the top of the disconnecting base (101); The disconnecting drive unit (200) is arranged on the disconnecting base (101) and connected to the lifting knife seat (102), and is used to drive the lifting knife seat (102) to rise and fall to cut off the small busbar; The handheld small busbar breaking device further comprises: a busbar clamping unit (300); The busbar clamping units (300) are arranged on both sides of the disconnect base (101) and are used to clamp the two ends of the small busbar.

2. The handheld small busbar disconnecting device according to claim 1 is characterized in that: The breaking drive unit (200) comprises: a driving motor (204) and two threaded rods (201); Two threaded rods (201) are respectively arranged on both sides of the breaking cutter (103), and the two are arranged in parallel; one end of one threaded rod (201) is inserted into the inside of the breaking base (101) and is coaxially connected to the output end of the driving motor (204); one end of the other threaded rod (201) is inserted into the inside of the breaking base (101) and is connected to the output end of the driving motor (204) through a chain sprocket assembly; The lifting knife seat (102) is sleeved on the two threaded rods (201) and is respectively threadedly connected to the two threaded rods (201).

3. The handheld small busbar disconnecting device according to claim 2 is characterized in that: A driving cavity is arranged inside the disconnect base (101); the chain sprocket assembly is arranged inside the driving cavity; an inspection cover (206) corresponding to the driving cavity is installed at the lower end of the disconnect base (101), and two groups of hinged plates (207) are hingedly connected to the lower side wall of the disconnect base (101) and pressed against the corresponding inspection covers (206).

4. The handheld small busbar disconnecting device according to claim 3 is characterized in that: The disconnecting drive unit (200) further comprises: two groups of lifting guide components (209) respectively arranged on the left and right sides of the disconnecting base (101); Each set of the lifting guide assembly (209) comprises two fixing ears (209a) respectively mounted on the lifting knife seat (102) and the breaking base (101), and the two fixing ears (209a) are connected via a telescopic guide cylinder.

5. The handheld small busbar disconnecting device according to claim 4 is characterized in that: A docking ear (302) is fixedly mounted on one end of each threaded rod (201) inserted into the interior of the disconnect base (101); the docking ear (302) is inserted into the disconnect base (101) via a positioning plug (304); and the docking ear (302) and the disconnect base (101) are fastened and connected via a plurality of groups of evenly distributed positioning bolts.

6. The handheld small busbar disconnecting device according to any one of claims 1 to 5, characterized in that: The busbar clamping unit (300) is detachably mounted on the front and rear sides of the disconnecting base (101); the busbar clamping unit (300) comprises two symmetrically arranged bending support frames (301), the bottom of each bending support frame (301) being detachably connected to the side wall of the disconnecting base (101); a rectangular frame (305) is arranged on the top of each bending support frame (301), the height of each rectangular frame (305) being adapted to the height of the disconnecting cutter (103); the rectangular frames located on the two bending support frames (301) are respectively used to fix and clamp the two ends of the small busbar to be disconnected.

7. The handheld small busbar disconnecting device according to claim 6 is characterized in that: Two pairs of symmetrically positioned supporting ears (306) are fixedly installed on both sides of the rectangular frame (305), a bidirectional screw rod (307) is rotatably connected between one pair of supporting ears (306), and a guide rod (311) is fixedly connected between the other pair of supporting ears (306), the bidirectional threads on the bidirectional screw rod (307) are respectively connected to symmetrically positioned threaded sleeves (308), and two guide sleeves (312) are slidingly sleeved on the guide rod (311), and a moving bar (309) is fixedly connected between each of the guide sleeves (312) and the corresponding threaded sleeve (308), and strip openings matching the moving bar (309) are opened on both sides of the rectangular frame (305), and an insulating clamping sleeve (310) is fixedly installed on one side of each of the moving bars (309) close to the center of the rectangular frame (305), and each pair of the insulating clamping sleeves (310) is against the side wall of the small busbar (106).

8. The handheld small busbar disconnecting device according to any one of claims 1 to 5, characterized in that: A carrying handle (105) is rotatably connected to the center of the upper side wall of the lifting knife seat (102), and the carrying handle (105) is arranged in an inverted U shape.

9. A handheld small busbar disconnection method, the disconnection method is applicable to the disconnection device described in any one of claims 1 to 8 above, characterized in that: The breaking method comprises the following steps: Placing the small busbar to be cut on the busbar placement seat (104), and passing the two ends of the small busbar through the two busbar clamping units (300) respectively, and clamping and fixing the small busbar by the busbar clamping units (300); After the small busbar is fixed and clamped, obtain the specification parameters and cutting requirements of the small busbar; Calculate the optimal cutting pressure based on the input hardness and thickness of the small busbar material; According to the calculation result of cutting pressure, the initial speed of the driving motor is set; Turn on the drive motor to cut the small busbar, monitor the cutting status in real time, and ensure the dynamic adaptation of cutting pressure and speed; The two parts of the cut small busbar are respectively clamped in two busbar clamping units (300), and the motor is driven to output cutting process data and performance indicators at the same time; According to the output data and indicators, an adaptive cutting control algorithm is designed to optimize the motor speed by judging the cutting pressure of the small busbar.

10. The handheld small busbar disconnecting method according to claim 9 is characterized in that: The adaptive cutting control algorithm formula is as follows: Among them, P is the cutting pressure, H is the ambient humidity, γ is the speed adjustment coefficient, T is the ambient temperature, α is the temperature influence factor, M is the hardness of the busbar material, σ is the conductivity, d is the thickness, ρ is the thread density, and the lower limit threshold of the cutting pressure is set to P. low , the upper limit threshold of cutting pressure is P high ; If P<P low , indicating that the pressure of the cutting knife is insufficient, which may cause the busbar to fail to be cut off, and the drive motor speed needs to be adjusted; If P low ≤P≤P high , indicating that the pressure of the cutting blade is within a reasonable range, the cutting task is performed normally, the equipment operates normally, and no adjustment is required; If P>P high , indicating that the pressure of the cutting knife exceeds the safe range, which may damage the cutting knife or busbar. It is necessary to stop the operation and reduce the speed of the driving motor.

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