阅读说明：本技术 电力母排对接方法、对接平台及其平台操作方法 (Power bus bar butt joint method, butt joint platform and platform operation method thereof ) 是由 龚柱 于 2020-03-14 设计创作，主要内容包括：一种电力母排对接方法、对接平台及其平台操作方法,该电力母排对接平台包括对接面设置用于接纳联接柱(1)且与联接柱间隙配合的盲孔(201)的装载单元(2)、撞击装载单元或者电力母排使联接柱进入电力母排预制孔的动作单元(3)、限制电力母排沿其长度方向运动的限位单元(5)、支撑动作单元和限位单元的支撑单元(6)。该平台操作方法包括借助装载单元通过动作单元使联接柱先装配于第一电力母排的预制孔中,再通过动作单元使第一电力母排上装配好的联接柱插入第二电力母排的预制孔中。该电力母排对接方法、对接平台及其平台操作方法通过分阶段装配实现了多个联接柱同时装配到同一条电力母排中,进而实现两条电力母排的正确对接。(The power busbar butt joint platform comprises a loading unit (2) with a butt joint surface provided with a blind hole (201) which is used for receiving a connecting column (1) and is in clearance fit with the connecting column, an action unit (3) which impacts the loading unit or the power busbar to enable the connecting column to enter a power busbar prefabricated hole, a limiting unit (5) which limits the power busbar to move along the length direction of the power busbar, and a support unit (6) which supports the action unit and the limiting unit. The platform operation method comprises the steps that the connecting column is assembled in a prefabricated hole of the first power busbar through the action unit by means of the loading unit, and then the connecting column assembled on the first power busbar is inserted into a prefabricated hole of the second power busbar through the action unit. The power busbar butt joint method, the butt joint platform and the platform operation method thereof realize that a plurality of connecting columns are assembled in the same power busbar by stage assembly, and further realize correct butt joint of two power busbars.)

The electric power busbar docking platform is characterized by comprising a loading unit (2) with a blind hole (201) which is used for receiving a coupling column (1) and is in clearance fit with the coupling column (1) and a butting face, an action unit (3) which impacts the loading unit (2) or the electric power busbar to enable the coupling column (1) to enter a prefabricated hole of the electric power busbar, a limiting unit (5) which limits the electric power busbar to move along the length direction of the electric power busbar, a supporting unit (6) which supports the action unit (3) and the limiting unit (5), wherein the supporting unit (6) comprises a first shaft (601), a second shaft (602) which is parallel to the first shaft (601), a receiving unit (7) which is connected with the first shaft (601) and the second shaft (602) in a sliding mode, a support which supports the first shaft (601) and the second shaft (602), and a support which supports the support, wherein the receiving unit (7) comprises a receiving block (701) which is matched with the, The power bus bar extension and retraction device comprises a receiving groove (702) penetrating through the receiving block (701) and used for receiving a power bus bar along the width direction of the power bus bar, and a limiting shaft (703) movably inserted into the receiving block (701) and extending and retracting in the receiving groove (702) and used for limiting the power bus bar to move along the width direction of the power bus bar, wherein the receiving groove (702) is positioned between the first shaft (601) and the second shaft (602) and is arranged along the axial direction of the first shaft (601); the limiting unit (5) comprises a first screw (501) and a second screw (502) which are parallel to the first shaft (601), a limiting block (503) detachably connected with the first screw (501) and the second screw (502), and a connecting block (504) which is connected with the first screw (501) and the second screw (502) and matched with the action unit (3); the action unit (3) comprises a first base (301) fixedly connected between a first shaft (601) and a second shaft (602), a second base (302) attached to a connecting block (504) of the limiting unit (5), an end portion (303) capable of extending out of the first base (301) and used for impacting the power busbar, and a driving mechanism contained in the first base (301) and the second base (302) and used for enabling the end portion (303) to act.

An electric busbar docking platform according to claim 1, wherein the driving mechanism comprises a spring, an operating member for compressing the spring to store energy, a first member for maintaining the spring in a first compressed state, a second member for maintaining the spring in a second compressed state, a third member for maintaining the spring in a third compressed state, a first release member for moving the spring from the first compressed state to the second compressed state, and a second release member for moving the spring from the second compressed state to the third compressed state, wherein the end (303) of the actuating unit (3) is in a retracted state when the spring is in the first compressed state or the third compressed state, and the end (303) of the actuating unit (3) is in an extended state when the spring is in the second compressed state.

A power bus docking platform according to claim 2, wherein the operating member is coupled to a handle located on the exterior of the first base (301) and the second base (302), and wherein rotation of the handle causes the operating member to compress the spring.

The power busbar docking platform according to claim 1, wherein the loading unit (2) has an outer shape consistent with that of the first power busbar (101) or the second power busbar (102), the blind hole (201) is formed in the docking surface of the loading unit (2) and extends along the length direction of the loading unit (2), and the effective depth of the blind hole (201) is half of the axial length of the coupling column (1).

A power bus bar docking platform according to claim 1, characterized in that it comprises 4 receiving units (7), wherein in the first power bus bar stage of assembly, the first receiving unit (704) is used for receiving the loading unit (2), and the second receiving unit (705) and the third receiving unit (706) are used for receiving the first power bus bar (101); when the second power busbar stage is assembled, the first receiving unit (704) and the second receiving unit (705) are used for receiving the first power busbar (101), and the third receiving unit (706) and the fourth receiving unit (707) are used for receiving the second power busbar (102).

The power busbar docking platform according to claim 1, wherein the first screw (501) is detachably coupled through 2 first nut clamping limiting blocks (503), the second screw (502) is detachably coupled through 2 second nut clamping limiting blocks (503), the first screw (501) is coupled through 2 third nut clamping coupling blocks (504), and the second screw (502) is coupled through 2 fourth nut clamping coupling blocks (504).

An operation method of a power busbar docking platform is characterized by comprising the following steps:

s1, triggering the first release component to enable the end part (303) of the action unit (3) to be in an extending state;

s2, placing the first power busbar (101) in a receiving groove (702) of the second receiving unit (705) and a receiving groove (702) of the third receiving unit (706), inserting a limiting shaft (703) of the second receiving unit (705) and a limiting shaft (703) of the third receiving unit (706), and inserting the limiting shaft (703) into the receiving groove (702);

s3, placing the loading unit (2) in the receiving groove (702) of the first receiving unit (704);

s4, enabling the butt joint surface of the first power bus bar (101) to be in contact with the butt joint surface of the loading unit (2), enabling the end surface, far away from the butt joint surface, of the loading unit (2) to be in contact with the end part (303) of the action unit (3), adjusting and fastening the position of a limiting block (503) of the limiting unit (5), and enabling the limiting block (503) to be in contact with the end surface, far away from the butt joint surface, of the first power bus bar (101);

s5, withdrawing the loading unit (2);

s6, loading the connecting column (1) on the loading unit (2);

s7, operating the second releasing component to retract the end (303) of the action unit (3) and keep the end in the retracted state;

s8, operating the handle to compress the spring of the driving mechanism and keeping the spring in the first compression state;

s9, placing the loading unit (2) loaded with the coupling column (1) into the receiving groove (702) of the first receiving unit (704), enabling the end face, far away from the butt joint face, of the loading unit (2) to be close to the end (303) of the action unit (3), inserting the limiting shaft (703) of the first receiving unit (704), and enabling the limiting shaft (703) to be inserted into the receiving groove (702);

s10, triggering the first release member to enable the end part (303) of the action unit (3) to extend out, enabling the extended end part (303) to impact the loading unit (2), and enabling the connecting column (1) on the loading unit (2) to be inserted into the prefabricated hole of the first power busbar (101);

s11, triggering a second release member to retract the end (303) of the action unit (3);

s12, pulling out the limiting shaft (703) of the receiving unit (7), taking the first power busbar (101) and the loading unit (2) out of the receiving groove (702) of the receiving unit (7), removing the loading unit (2), and finishing the assembly of the connecting column (1) on the first power busbar (101);

s13, operating the handle to compress the spring of the driving mechanism and keep the spring in the first compression state to trigger the first release component, so as to extend the end (303) of the action unit (3);

s14, placing the second power busbar (102) in a receiving groove of the third receiving unit (706) and a receiving groove of the fourth receiving unit (707), inserting a limiting shaft (703) of the third receiving unit (706) and a limiting shaft (703) of the fourth receiving unit (707), and inserting the limiting shaft (703) into the receiving groove (702);

s15, placing the first power busbar (101) with the assembled connecting column (1) between the end part (303) of the action unit (3) and the second power busbar (102), enabling the butt joint surface of the first power busbar (101) to be in contact with the butt joint surface of the second power busbar (102), enabling the end surface, far away from the butt joint surface, of the first power busbar (101) to be in contact with the end part (303) of the action unit (3), adjusting and fastening the position of a limiting block (503) of the limiting unit (5), and enabling the limiting block (503) to be in contact with the end surface, far away from the butt joint surface, of the second power busbar (102);

s16, withdrawing the first power busbar (101) assembled with the connecting column (1);

s17, operating the second releasing component to retract the end (303) of the action unit (3) and keep the end in the retracted state;

s18, operating the handle to compress the spring of the driving mechanism and keeping the spring in the first compression state;

s19, placing the first power busbar (101) with the assembled connecting column (1) in the receiving groove of the first receiving unit (704) and the receiving groove of the second receiving unit (705), enabling the end face, away from the butt joint face, of the first power busbar (101) to be close to the end (303) of the action unit (3), and inserting the limiting shaft (703) of the first receiving unit (704) and the limiting shaft (703) of the second receiving unit (705);

s20, triggering a first release component to enable the end part (303) of the action unit (3) to extend out, enabling the extended end part (303) to impact the first power busbar (101), and enabling the connecting column (1) on the first power busbar (101) to be inserted into the prefabricated hole of the second power busbar (102);

s21, triggering a second release member to retract the end (303) of the action unit (3);

s22, pulling out the limiting shaft (703) of the receiving unit (7), taking the first power busbar (101) and the second power busbar (102) out of the receiving groove (702) of the receiving unit (7), assembling the connecting column (1) on the first power busbar (101) and the second power busbar (102), and completing the butt joint of the first power busbar (101) and the second power busbar (102).

The operating method of the power busbar docking platform according to claim 7, further comprising a checking step between the step S1 and the step S2, wherein the checking step checks the position of the limiting shaft (703) of the receiving unit (7), and if the limiting shaft (703) is inserted into the receiving groove (702), the limiting shaft (703) of the receiving unit (7) is pulled out to be withdrawn from the receiving groove (702).

The method for operating the power busbar docking platform according to claim 7,

step S6 also comprises the steps of placing the loading unit (2) with the assembled connecting column (1) in liquid nitrogen for deep cooling, and immersing the connecting column (1) in the liquid nitrogen;

a heating step is further included between the step S8 and the step S9, and the butt joint surface of the first power busbar (101) is heated to enable the temperature to be above 200 ℃;

the loading unit (2) in the step S9 is subjected to liquid nitrogen cryogenic treatment before being placed;

a deep cooling step is further included between the step S16 and the step S17, the first power busbar (101) with the assembled connecting column (1) is placed in liquid nitrogen for deep cooling, and the connecting column (1) is immersed in the liquid nitrogen;

a heating step is also included between the step 18 and the step 19, and the butt joint surface of the second power bus bar (102) is heated to enable the temperature to be above 200 ℃;

and (4) performing liquid nitrogen cryogenic treatment on the first power busbar (101) assembled with the connecting column (1) in the step S19 before placing.

A power bus bar butting method is characterized by comprising the following steps:

assembling a plurality of connecting columns on a loading unit and then carrying out cryogenic treatment;

heating the butt joint end of the first power bus bar;

the loading unit is impacted through the action unit, so that the plurality of connecting columns simultaneously enter corresponding prefabricated holes of the butt joint surface of the first power busbar along the axial direction of the connecting columns;

performing cryogenic treatment on the connecting column of the first power bus bar, and heating the butt joint end of the second power bus bar;

and the action unit impacts the second power busbar to enable the prefabricated hole of the butt joint surface of the second power busbar to be sleeved into the corresponding connecting column on the butt joint surface of the first power busbar along the axial direction of the prefabricated hole.

Technical Field

The invention relates to the field of power equipment, in particular to a power bus bar connecting tool.

Background

In the field of power distribution, the connection of two power busbars usually adopts an overlapping and overlapping method, and then is fastened by bolts, so that the connection method needs to overlap the two busbars by a certain length to keep the current density of a contact surface within a certain range, and thus the temperature rise of the connection part meets the relevant standard. In order to reduce the temperature rise of the power equipment, the length of the overlapping of the busbars needs to be increased, so that the contact area is increased, the current density of the contact surface is reduced, and finally the temperature rise of the equipment is reduced. Increasing the overlap length increases the amount of the bus bar used, and further increases the manufacturing cost of the device. The bolt for fastening can reduce the electrical gap or the interphase distance between the busbars, the distance between the busbars needs to be increased in order to keep the electrical gap or the interphase distance unchanged, and the increase of the distance between the busbars inevitably causes the increase of the occupied space of the busbars. How to increase the contact area to reduce the temperature of the busbar but not reduce the electrical gap or the distance between the busbars and not enlarge the occupied space of the busbar. In order to solve this problem, a new bus bar connection method is proposed, in which two bus bars are butted by a connection column, as shown in fig. 18.

Drawings

The invention and its advantages will be better understood in the following description of embodiments given as non-limiting examples with reference to the accompanying drawings, in which:

fig. 1 is a perspective view of a power bus bar docking platform disclosed in an embodiment of the present invention;

FIG. 2 is a partially exploded perspective view of FIG. 1;

fig. 3 is a perspective view of determining the position of a limiting block when a first power busbar is assembled according to the embodiment of the invention;

fig. 4 is a perspective view of determining the position of a limiting block when a second power busbar is assembled according to the embodiment of the invention;

fig. 5 is a perspective view of a second power busbar assembled according to the embodiment of the invention;

fig. 6 is a perspective view of the electric bus bar docking according to the embodiment of the present invention;

fig. 7 is a perspective view of the docking platform removed after the power bus bar is successfully docked, according to the embodiment of the present invention;

FIG. 8 is a perspective view of the actuation unit disclosed in the embodiments of the present invention with the end portions in an extended state;

FIG. 9 is a perspective view of the actuation unit disclosed in the embodiments of the present invention with the end portion in a retracted state;

FIG. 10 is a perspective view of FIG. 8 from another perspective;

FIG. 11 is a perspective view of a receiving block disclosed in an embodiment of the present invention;

fig. 12 is a perspective view of the power bus bar assembled to the receiving unit according to the embodiment of the present invention;

fig. 13 is a perspective view of a power bus bar withdrawal receiving unit according to the embodiment of the present invention;

FIG. 14 is a perspective view of the attachment post of the disclosed embodiment of the present invention assembled to a loading unit;

FIG. 15 is an exploded perspective view of FIG. 14;

FIG. 16 is a perspective view, partially in section, of a disclosed loading unit in accordance with an embodiment of the present invention;

fig. 17 is a partially cut-away perspective view of the loading unit disclosed in the embodiment of the invention, which is used for assembling the coupling column on the first power bus bar;

fig. 18 is a partially cut-away perspective view of the first power bus bar and the second power bus bar after being butted by the connecting column;

fig. 19 to 24 are partial perspective views illustrating a process of assembling the first power bus bar.

Description of the reference numerals

1. A coupling post; 101. a first power bus bar; 102. a second power bus bar;

2. a loading unit; 201. blind holes; 3. an action unit;

301. a first base; 302. a second base; 303. an end portion;

304. a handle; 305. a first key; 306. a second key;

5. a limiting unit; 501. a first screw; 502. a second screw;

503. a limiting block; 504. a coupling block; 6. a support unit;

601. a first shaft; 602. a second shaft; 7. a receiving unit;

701. receiving the block; 702. a receiving groove; 703. a limiting shaft;

704. a first receiving unit; a second receiving unit; 706. a third receiving unit;

707. a fourth receiving unit.

Modes for carrying out the invention

Before the electric busbar is in butt joint, the busbar needs to be pretreated, a prefabricated hole for receiving the connecting column 1 is processed on the butt joint surface of the busbar, and the depth of the prefabricated hole is slightly larger than half of the length of the connecting column 1. The length direction of the power busbar refers to the axial direction of the power busbar, the width direction of the power busbar refers to the direction with larger size on the cross section of the power busbar, and the thickness direction of the power busbar refers to the direction with smaller size on the cross section of the power busbar.

As shown in fig. 1, the embodiment discloses a female butt joint platform of electric power, female butt joint platform of electric power includes loading unit 2, action unit 3, spacing unit 5, support element 6, wherein, loading unit 2's butt joint face sets up and is used for accepting coupling post 1 and with coupling post 1 clearance fit's blind hole 201, action unit 3 is used for striking loading unit 2 or female messenger coupling post 1 that gets into female prefabricated hole of arranging of electric power, spacing unit 5 is used for limiting female the arranging motion of its length direction of electric power, support element 6 is used for supporting action unit 3 and spacing unit 5.

As shown in fig. 2, the supporting unit 6 is provided with a first shaft 601, a second shaft 602 parallel to the first shaft 601, receiving units 7 slidably coupled to the first shaft 601 and the second shaft 602, brackets supporting the first shaft 601 and the second shaft 602, and brackets supporting the brackets, and the present embodiment is provided with four receiving units 7, which are a first receiving unit 704, a second receiving unit 705, a third receiving unit 706, and a fourth receiving unit 707, respectively. Since the supporting unit 6 is provided with the first shaft 601 and the second shaft 602 which are parallel to each other, and the receiving unit 7 is slidably coupled to the first shaft 601 and the second shaft 602, the receiving unit 7 slides smoothly, and power bus bars of different lengths can be received by the cooperation of a plurality of receiving units 7.

As shown in fig. 12 and 13, the receiving unit 7 includes a mounting plate, a receiving block 701 detachably coupled to the mounting plate, two sliders detachably coupled to the mounting plate, the receiving block 701 being disposed at a center of the mounting plate in a length direction, the two sliders being disposed symmetrically with respect to a center plane of the mounting plate in the length direction, the sliders and the receiving block 701 being disposed at opposite sides of the mounting plate. The receiving block 701 is configured to receive a power bus bar, the receiving block 701 is provided with a receiving groove 702 and a limiting shaft 703, and the receiving groove 702 penetrates through the receiving block 701 and receives the power bus bar along a width direction of the power bus bar, as shown in fig. 11. The receiving groove 702 is located between the first shaft 601 and the second shaft 602 and is disposed along the axial direction of the first shaft 601, and the limiting shaft 703 is movably inserted into the receiving block 701 and extends and contracts in the receiving groove 702 for limiting the power bus bar to move along the width direction thereof. Because the receiving groove 702 receives the power busbar along the width direction of the power busbar, an operator can place the power busbar in the receiving groove 702 from the upper part of the platform without hindrance, and the assembly efficiency of the power busbar is improved. The limiting shaft 703 arranged on the receiving unit 7 ensures that the power bus bar does not jump in the width direction in the impact process, so that the connecting column 1 is smoothly assembled.

As shown in fig. 2, the position limiting unit 5 includes a first screw 501 and a second screw 502 parallel to the first shaft 601, a position limiting block 503 detachably coupled to the first screw 501 and the second screw 502, and a coupling block 504 coupling the first screw 501 and the second screw 502 and cooperating with the action unit 3.

As shown in fig. 8, the action unit 3 includes a first base 301 fixedly coupled between a first shaft 601 and a second shaft 602, a second base 302 attached to the coupling block 504 of the limiting unit 5, an end 303 that can extend out of the first base 301 for striking the power bus bar, and a driving mechanism accommodated in the first base 301 and the second base 302 for actuating the end 303. Because the connecting block 504 of the limiting unit 5 is tightly attached to the second base 302 of the action unit 3, and the limiting block 503 of the limiting unit 5 is tightly attached to one end of the power bus bar, when the connecting column 1 is inserted into the power bus bar, the power bus bar cannot move along the movement direction of the connecting column 1, and the smooth assembly of the connecting column 1 is ensured. The drive mechanism comprises a spring, an operating member which compresses the spring to store energy, a first member which holds the spring in a first compressed state, a second member which holds the spring in a second compressed state, a third member which holds the spring in a third compressed state, a first release member which moves the spring from the first compressed state to the second compressed state, and a second release member which moves the spring from the second compressed state to the third compressed state, the end 303 of the actuation unit 3 being in a retracted state when the spring is in the first compressed state or the third compressed state, as shown in fig. 9. The end 303 of the action unit 3 is in an extended state when the spring is in the second compressed state, as shown in figure 8. The operating member is coupled to a handle 304 located outside the first base 301 and the second base 302, turning the handle 304 causes the operating member to compress the spring.

As shown in fig. 10, the actuation unit 3 further comprises a first button 305 and a second button 306, and the first button 305 is activated to actuate the first release member and the spring moves from the first compressed state to the second compressed state. Activation of the second button 306 actuates the second release member and the spring moves from the second compressed state to the third compressed state.

As shown in fig. 15, the loading unit 2 has an external shape consistent with the first power bus bar 101 or the second power bus bar 102, the blind hole 201 is disposed on the abutting surface of the loading unit 2 and extends along the length direction of the loading unit 2, and the effective depth of the blind hole 201 is at least half of the axial length of the coupling column 1, as shown in fig. 16. The blind hole 201 which is arranged on the loading unit 2 and is in clearance fit with the connecting column 1 enables the connecting column 1 to be inserted into the electric busbar and then the loading unit 2 can be conveniently removed, so that preparation is made for next assembly, and the reusability of parts is improved. Since the loading unit 2 has an outer shape conforming to the power bus bar, the loading unit 2 is also suitable for the receiving unit 7 for receiving the power bus bar, improving the commonality of parts.

As shown in fig. 3, the power busbar docking platform includes 4 receiving units 7, namely a first receiving unit 704, a second receiving unit 705, a third receiving unit 706 and a fourth receiving unit 707. In the stage of assembling the first power busbar 101, the first receiving unit 704 is used for receiving the loading unit 2, and the second receiving unit 705 and the third receiving unit 706 are used for receiving the first power busbar 101. In the stage of assembling the second power busbar 102, the first receiving unit 704 and the second receiving unit 705 are used for receiving the first power busbar 101, and the third receiving unit 706 and the fourth receiving unit 707 are used for receiving the second power busbar 102, as shown in fig. 4.

As shown in fig. 2, the first screw 501 is detachably connected by 2 first nut clamping limiting blocks 503, the second screw 502 is detachably connected by 2 second nut clamping limiting blocks 503, the first screw 501 is connected by 2 third nut clamping connecting blocks 504, and the second screw 502 is connected by 2 fourth nut clamping connecting blocks 504. The limiting block 503 can be clamped at different positions of the screw rod by adjusting the fastening position of the nut on the screw rod, so that the effect of limiting the electric busbars with different lengths is realized, and the applicability of the electric busbar butt joint platform to the electric busbars with different lengths is improved.

The operation method of the power busbar docking platform disclosed by the embodiment comprises the following steps:

s1, triggering the first button 305 of the operating unit 3 to actuate the first release member, bringing the end 303 of the operating unit 3 into an extended state; the positions of the stopper shafts 703 on the first receiving unit 704, the second receiving unit 705, the third receiving unit 706, and the fourth receiving unit 707 are checked, the stopper shafts 703 on the respective receiving units 7 are in the pulled-out position, and the stopper shafts 703 are withdrawn from the receiving grooves 702.

S2, the first power bus bar 101 is placed in the receiving groove 702 of the second receiving unit 705 and the receiving groove 702 of the third receiving unit 706, the abutting surface of the first power bus bar 101 faces the action unit 3, the stopper shaft 703 of the second receiving unit 705 and the stopper shaft 703 of the third receiving unit 706 are inserted, and the stopper shaft 703 is inserted into the receiving groove 702, as shown in fig. 19.

S3, placing loading unit 2 in receiving groove 702 of first receiving unit 704, where loading unit 2 is used only for determining the position of limiting block 503 of limiting unit 5, and thus does not need to receive coupling column 1.

S4, adjusting the position of the first power bus bar 101 to make the abutting surface of the first power bus bar 101 contact with the abutting surface of the loading unit 2, and to make the end surface of the loading unit 2 away from the abutting surface contact with the end 303 of the action unit 3, and adjusting and fastening the position of the limit block 503 of the limit unit 5 to make the limit block 503 contact with the end surface of the first power bus bar 101 away from the abutting surface, as shown in fig. 3.

S5, withdraw unit load 2.

S6, loading the coupling column 1 in the loading unit 2, as shown in figure 14, placing the loading unit 2 with the coupling column 1 assembled in liquid nitrogen for deep cooling, and immersing the coupling column 1 in the liquid nitrogen for 5 minutes.

S7, triggering the second button 306 of the operating unit 3 actuates the second release member, causing the end 303 of the operating unit 3 to retract and remain in the retracted state.

S8, operating the handle 304 of the action unit 3 to compress the spring of the driving mechanism and keep the spring in the first compression state; the butt joint surface of the first power busbar 101 is heated to a temperature of more than 200 ℃.

S9, the loading unit 2 with the coupling post 1 loaded thereon is taken out of the liquid nitrogen, placed in the receiving groove 702 of the first receiving unit 704, and the end face of the loading unit 2 away from the abutting surface is brought close to the end 303 of the action unit 3, as shown in fig. 20, and the stopper shaft 703 of the first receiving unit 704 is inserted, and the stopper shaft 703 is inserted into the receiving groove 702, as shown in fig. 21.

S10, triggering the first button 305 of the action unit 3 to actuate the first release member, so as to extend the end 303 of the action unit 3, the extended end 303 strikes the loading unit 2, and the coupling post 1 on the loading unit 2 is inserted into the preformed hole of the abutting surface of the first power bus bar 101, as shown in fig. 22 and 17. Because the connection column 1 is subjected to liquid nitrogen cryogenic treatment and the prefabricated hole of the electric busbar is subjected to heating treatment, the matching relation between the connection column 1 and the prefabricated hole of the electric busbar is changed from original interference fit into clearance fit, and therefore, the connection column 1 only needs to be quickly collided into the prefabricated hole when being assembled, and the end part 303 of the action unit 3 does not need to have large thrust. The connecting column 1 and the prefabricated hole of the power busbar form clearance fit through cold and hot treatment, and the chamfer angle on the end surface of the connecting column 1 is added, so that the connecting column 1 and the prefabricated hole can be smoothly assembled under the condition of no high coaxiality under the high-speed impact of the end part 303 of the action unit 3. Because the loading unit 2 loads a plurality of connecting columns 1 at the same time, the butt joint efficiency of the power busbar is improved. Because the loading unit 2 instead of the connecting column 1 is collided by the end part 303 of the action unit 3, after the cryogenic treatment by liquid nitrogen, the low-temperature state of the connecting column 1 is not influenced by the collision of the action unit 3, and the connecting column 1 still keeps a cold-shrinkage state and further smoothly enters the prefabricated hole of the power busbar.

S11 triggering the second button 306 of the operating unit 3 actuates the second release member to retract the end 303 of the operating unit 3 as shown in fig. 23.

S12, pulling out the limiting shaft 703 of the receiving unit 7, taking out the first power busbar 101 and the loading unit 2 from the receiving groove 702 of the receiving unit 7, removing the loading unit 2, and completing the assembly of the coupling column 1 on the first power busbar 101, as shown in fig. 24; because spacing axle 703 movably pegs graft in receiving piece 701, consequently can be according to the operation needs fast conveniently with accepting groove 702 from opening the type change closed type into, the female arranging of electric power of convenient during opening the type places, limits female arranging's of electric power during closed type and beats.

S13, operating the handle 304 of the action unit 3 to compress the spring of the driving mechanism and keeping it in the first compressed state triggers the first button 305 to actuate the first release member, causing the end 303 of the action unit 3 to extend.

S14, the second power bus bar 102 is placed in the receiving groove 702 of the third receiving unit 706 and the receiving groove 702 of the fourth receiving unit 707, the abutting surface of the second power bus bar 102 faces the action unit 3, the stopper shaft 703 of the third receiving unit 706 and the stopper shaft 703 of the fourth receiving unit 707 are inserted, and the stopper shaft 703 is inserted into the receiving groove 702.

S15, the first power busbar 101 with the assembled coupling post 1 is placed between the end 303 of the action unit 3 and the second power busbar 102, the abutting surface of the first power busbar 101 contacts with the abutting surface of the second power busbar 102, the end surface of the first power busbar 101 away from the abutting surface contacts with the end 303 of the action unit 3, the position of the limit block 503 of the limit unit 5 is adjusted and fastened, the limit block 503 contacts with the end surface of the second power busbar 102 away from the abutting surface, and the first power busbar 101 is only used for determining the position of the limit block 503 of the limit unit 5, so that the first power busbar 101 with the assembled coupling post 1 does not need to be completely placed in the receiving groove 702 of the receiving unit 7, as shown in fig. 4.

S16, the first power busbar 101 with the assembled connecting column 1 is withdrawn, the first power busbar 101 with the assembled connecting column 1 is placed in liquid nitrogen for deep cooling, the connecting column 1 is immersed in the liquid nitrogen, and the deep cooling time is 5 minutes.

S17, triggering the second button 306 of the action unit 3 actuates the second release member to retract and hold the end 303 of the action unit 3 in the retracted state, as shown in fig. 5.

S18, operating the handle 304 of the action unit 3 to compress the spring of the driving mechanism and keep the spring in the first compression state; and heating the butt joint surface of the second power busbar 102 to enable the temperature of the butt joint surface to be more than 200 ℃.

S19, the first power bus bar 101 with the coupling column 1 assembled is taken out from the liquid nitrogen, and is placed in the receiving groove 702 of the first receiving unit 704 and the receiving groove 702 of the second receiving unit 705, so that the end face of the first power bus bar 101 away from the butt joint face is close to the end 303 of the action unit 3, and is inserted into the limit shaft 703 of the first receiving unit 704 and the limit shaft 703 of the second receiving unit 705.

S20, triggering the first button 305 of the action unit 3 to actuate the first release member, so as to extend the end 303 of the action unit 3, and the extended end 303 strikes the first power bus bar 101, so that the connection post 1 on the first power bus bar 101 is inserted into the prefabricated hole of the second power bus bar 102, as shown in fig. 6.

S21, triggering the second button 306 of the operating unit 3 actuates the second release member, causing the end 303 of the operating unit 3 to retract.

S22, the limiting shaft 703 of the receiving unit 7 is pulled out, the first power busbar 101 and the second power busbar 102 are taken out from the receiving groove 702 of the receiving unit 7, and the coupling post 1 is assembled to the first power busbar 101 and the second power busbar 102, thereby completing the butt joint of the first power busbar 101 and the second power busbar 102, as shown in fig. 7.

The operation method of the power busbar butt-joint platform realizes that the plurality of connecting columns 1 are simultaneously assembled in the same power busbar through staged assembly, and further realizes correct butt joint of two power busbars, and the butt-joint method comprises the following steps:

assembling a plurality of connecting columns 1 on a loading unit 2, then carrying out cryogenic treatment, and heating the butt joint end of a first electric power busbar 101 in the cryogenic treatment process; the loading unit 2 is impacted through the action unit 3, so that the connecting columns 1 subjected to cryogenic treatment simultaneously enter corresponding prefabricated holes of the butt joint surface of the first electric power busbar 101 subjected to heating treatment along the axial direction of the connecting columns; performing cryogenic treatment on the connecting column 1 of the first power bus-bar 101, and heating the butt joint end of the second power bus-bar 102 in the cryogenic treatment process; the action unit 3 impacts the second electric power busbar 102, so that the prefabricated hole of the butt joint surface of the second electric power busbar 102 after heating treatment is sleeved into the corresponding connecting column 1 on the butt joint surface of the first electric power busbar 101 after deep cooling treatment along the axial direction of the prefabricated hole.