Assembly process of low voltage device in new energy box-type substation

Abstract

The present invention is a low-voltage device assembly process for a new energy box-type substation. A double C-type sling is used. A motor, a lead screw and a guide rail are installed on the double C-type sling. The length of the lifting chain connection block is adjusted by the forward or reverse rotation of the motor to adapt to different low-voltage unit sizes. The C-type sling and the lifting chain assembly are hoisted by a crane to slowly push the low-voltage unit into the box-type transformer installation position, and the low-voltage unit is pushed in from the side. The patent of the present invention can change the current low-voltage unit assembly process and solve the problem that the top cover of the box-type transformer product shell cannot be removed, resulting in the low-voltage unit being unable to be hoisted into the box from the top of the box-type transformer top cover.

Description

Technical Field

[0001] The invention relates to the field of assembly technology, and in particular to an assembly technology for low-voltage devices in new energy box-type transformer substations. Background Art

[0002] As a complete set of terminal power distribution products directly facing users, box-type substations have achieved rapid development and wide application due to their strong completeness, quick investment returns, small size, small footprint, ability to penetrate deep into load centers, improve terminal power quality, easy installation and use, and easy coordination with the surrounding environment.

[0003] Box-type substation, also called prefabricated substation or prefabricated substation. It is a kind of factory prefabricated indoor and outdoor compact distribution equipment that is arranged in a certain wiring scheme with high-voltage switchgear, distribution transformer and low-voltage distribution device. It combines the functions of transformer step-down and low-voltage distribution organically and installs them in a moisture-proof, rust-proof, dust-proof, rodent-proof, fire-proof, anti-theft, heat-insulated, fully enclosed and movable steel structure box. It replaces the original civil construction distribution room and distribution station and becomes a new type of complete set of transformer and distribution device.

[0004] At present, the common method for domestic box-type transformer low-voltage units to enter the box is to lift the low-voltage unit and install it into the box from the top of the box-type transformer. When the top cover of the box-type transformer cannot be removed, the low-voltage unit cannot be installed from the top. Summary of the invention

[0005] In order to solve the above technical problems, the present invention is a new energy box-type substation low-voltage device assembly process, and its technical solution is:

[0006] It includes a double C-type sling and a sling chain assembly installed on the double C-type sling;

[0007] The double C-type sling is composed of two parallel C-type slings, which are fixed together by a combination piece;

[0008] The lifting chain assembly comprises a lifting chain connecting block, a lifting chain installed on the lifting chain connecting block and a lifting hook under the lifting chain;

[0009] The assembly comprises a fixed seat, a U-shaped member, a crossbeam and a longitudinal beam combined and connected. Each C-shaped sling is composed of an upper crossbeam, a lower crossbeam and a side longitudinal beam connecting the upper crossbeam and the lower crossbeam. A reinforcing rib is installed on the fixed seat and fixedly connected to the lower crossbeam of the C-shaped sling. There are four U-shaped members, two in a group, which pass through the lower crossbeam of each C-shaped sling respectively, and the U-shaped members are fixed to the lower crossbeam by positioning pins.

[0010] There are several crossbeams, which connect the double C-type slings and are arranged between the two upper crossbeams and the two lower crossbeams of the double C-type slings; a guide rail mounting seat is arranged on the two lower crossbeams, the bottom of the guide rail mounting seat is fixedly connected to the U-shaped piece, and two parallel guide rails are arranged on the guide rail mounting seat, namely guide rail I and guide rail II;

[0011] The motor I is rotatably mounted on the screw rod I, and the screw rod I is also provided with a motor II and a motor III, which are respectively arranged on the front and rear sides of the motor I. The bottoms of the motors II and III are respectively provided with guide grooves (16), and the guide grooves are slidably connected with the guide rails I and II.

[0012] A guide rail IV and a lead screw III are installed on the motor II, the guide rail IV is arranged on the lead screw III, a hook connection block III and a hook connection block IV are installed on both sides of the motor II and on the guide rail IV and the lead screw III, respectively, and a guide groove is provided on the hook connection block III and the hook connection block IV to match the guide rail IV;

[0013] A guide rail III parallel to the guide rail IV and a screw rod II parallel to the screw rod III are provided on the motor III, the guide rail III is arranged on the screw rod II, a hook connection block I and a hook connection block II are respectively installed on both sides of the motor III and on the guide rail III and the screw rod II, and a guide groove is respectively provided on the hook connection block I and the hook connection block II to match the guide rail III;

[0014] There is one longitudinal beam, which is vertically arranged on the crossbeam between the two lower crossbeams of the double C-shaped sling, and the motor I is installed on the top of the longitudinal beam.

[0015] Furthermore, the hook connecting block I, the hook connecting block II, the hook connecting block III and the hook connecting block IV are all provided with a lifting chain at the bottom, and a lifting hook is provided under the lifting chain.

[0016] Furthermore, corresponding holes for installing positioning pins are provided on the U-shaped member and the lower cross beam.

[0017] Furthermore, a lifting lug is provided on the top of the upper cross beam.

[0018] Furthermore, the double C-type sling is lifted by a crane, which hooks the lifting lugs. A lifting eye screw is provided on the top of the low-voltage unit, which is hooked together with the lifting chain hook of the double C-type sling. The position of the crane is adjusted to slowly push the low-voltage unit into the designated position.

[0019] Furthermore, the arrangement direction of the two parallel guide rails is the same as the arrangement direction of the lower cross beam of the double C-shaped sling.

[0020] Furthermore, the arrangement direction of the cross beam is the same as the arrangement direction of the guide rail mounting seat.

[0021] Furthermore, the screw rod I, screw rod II and screw rod III are bidirectional screw rods respectively.

[0022] Furthermore, when the motor I rotates forward, the screw rod I drives the motor II and the motor III to approach the motor I, and when the motor I rotates reversely, the screw rod I drives the motor II and the motor III to move away from the motor I;

[0023] The motor II rotates forward, and the screw rod III drives the hook connection block III and the hook connection block IV to approach the motor II. The motor II rotates reversely, and the screw rod III drives the hook connection block III and the hook connection block IV to move away from the motor II.

[0024] The motor III rotates forward, and the screw rod II drives the hook connection block I and the hook connection block II to approach the motor III. The motor III rotates reversely, and the screw rod II drives the hook connection block I and the hook connection block II to move away from the motor III.

[0025] Furthermore, the following methods are included:

[0026] (1) Use the double C-type sling and chain assembly to smoothly lift and move the low-voltage unit;

[0027] (2) Use the motor to adjust the front, back, left and right positions of the hook chain to ensure that the front and back distance of the chain assembly is consistent with the spacing of the lifting holes of the low-voltage unit;

[0028] (3) Use a crane to lift the double C-type lifting device, hook the lifting chain hook with the lifting eye screw on the low-voltage unit, adjust the position of the crane, and slowly push the low-voltage unit into the fixed position.

[0029] The beneficial effects of the present invention are as follows: the present invention is a low-voltage device assembly process for a new energy box-type substation, which uses a double C-type sling, on which a motor, a lead screw and a guide rail are installed, and the length of the lifting chain connection block is adjusted by the forward or reverse rotation of the motor to adapt to different low-voltage unit sizes, and the C-type sling and the lifting chain assembly are hoisted by a crane to slowly push the low-voltage unit into the box-type transformer installation position, and push the low-voltage unit in from the side. The patent of the present invention can change the current low-voltage unit assembly process, and solve the problem that the top cover of the box-type transformer product shell cannot be removed, resulting in the low-voltage unit being unable to be hoisted into the box from the top of the box-type transformer top cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the utility model;

[0031] Figure 2 for Figure 1 Schematic diagram of the structure after rotation;

[0032] Figure 3 for Figure 1 Main view;

[0033] Figure 4 for Figure 1 Side view;

[0034] Figure 5 for Figure 1 Schematic diagram of the structure installed on a C-type sling;

[0035] Figure 6 for Figure 5 Front view;

[0036] Figure 7 for Figure 5 Partial magnification;

[0037] Figure 8 This is a schematic diagram of the box-type transformer, C-type hanger and low-voltage unit structure;

[0038] Fig. 9 for Figure 8 Side view;

[0039] As shown in the figure, 1 motor I, 2 motor III, 3 screw rod I, 4 guide rail III, 5 hook connection block I, 6 screw rod II, 7 screw rod III, 8 hook connection block III, 9 guide rail IV, 10 motor II, 11 guide rail II, 12 guide rail I, 13 hook connection block IV, 14 lifting chain, 15 hook connection block II, 16 guide groove, 17 guide rail mounting seat, 18 lifting chain ring, 19 lifting ear, 20C type lifting device, 20-1 upper crossbeam, 20-2 side longitudinal beam, 20-3 lower crossbeam, 21 longitudinal beam, 22 reinforcement ribs, 23 U-shaped parts, 24 positioning pins, 25 crossbeam, 26 fixed seat, 27 box transformer, 28 low voltage unit. DETAILED DESCRIPTION Example

[0040] As shown in the figure, the present invention is an assembly process for low-voltage devices of new energy box-type substations, which includes a C-type hanger, a lifting chain assembly, a servo motor, a screw rod, a hook connecting block and a guide rail.

[0041] (1) A C-type sling 20, which is composed of two parallel C-type slings and is fixed together by a combination piece;

[0042] Each C-type sling is composed of an upper crossbeam 20-1, a lower crossbeam 20-3 and a side longitudinal beam 20-2 connecting the upper crossbeam and the lower crossbeam.

[0043] The assembly includes a fixed seat 26, a U-shaped member 23, a crossbeam 25 and a longitudinal beam 21, and the fixed seat 26 is installed with a reinforcing rib 22 and fixedly connected to the lower crossbeam 20-3 of the C-shaped sling; there are four U-shaped members 23, two in a group, corresponding to the left and right, and the U-shaped opening passes through the lower crossbeam 20-3 of each C-shaped sling respectively, and the U-shaped member is fixed to the lower crossbeam by a locating pin 24, and the U-shaped member and the lower crossbeam are provided with corresponding holes for installing the locating pins.

[0044] There are six crossbeams 25, and the arrangement direction of the crossbeams is the same as that of the guide rail mounting seat. The double C-type sling is connected by welding, three of which are arranged between the two upper crossbeams 20-1 of the double C-type sling, and the other three are arranged between the two lower crossbeams 20-3; the guide rail mounting seat 17 is arranged on the two lower crossbeams 20-3, and a horizontal platform extending outward is arranged on the U-shaped part. The bottom of the guide rail mounting seat and the horizontal platform of the U-shaped part are fixed by welding. Two parallel guide rails are arranged on the guide rail mounting seat 17, namely guide rail I12 and guide rail II11, and are perpendicular to the guide rail mounting seat, that is, the arrangement direction of the two parallel guide rails is the same as that of the lower crossbeam of the double C-type sling.

[0045] There is one longitudinal beam 21, which is vertically arranged on the cross beam 25 between the two lower cross beams of the double C-shaped sling, and the motor I1 is installed on the top of the longitudinal beam.

[0046] Three lifting ears 19 are respectively arranged on the top of each upper cross beam 20 - 1 , and correspond to each other in pairs on the left and right sides. The double C-shaped lifting device is lifted by a crane, and the crane hooks the lifting ears 19 .

[0047] (2) Servo motors, including motor I1, motor II10 and motor III2, whose model is: Panasonic MHMF042L.

[0048] The screw rods include screw rod I3, screw rod II6 and screw rod III7, and the selected models are: ABC bidirectional screw rods.

[0049] The guide rails include guide rail I12, guide rail II11, guide rail III4 and guide rail IV9.

[0050] The motor I1 is rotated to install the screw rod I3. The screw rod I is also provided with a motor II10 and a motor III2, which are respectively arranged on the front and rear sides of the motor I1. The motor II and the motor III move left and right as the screw rod I (positive and negative screw) rotates. The motor II10 and the motor III2 are respectively provided with a guide groove 16 at the bottom. The guide groove 16 is slidably connected with the guide rail I12 and the guide rail II11. The motor II and the motor III both move left and right along the guide rail I and the guide rail II. When the motor I rotates forward, the screw rod I drives the motor II and the motor III to approach the motor I. When the motor I rotates reversely, the screw rod I drives the motor II and the motor III away from the motor I.

[0051] Guide rail IV9 and screw rod III7 are installed on motor II10, guide rail IV9 is arranged on screw rod III7, hook connection block III8 and hook connection block IV13 are installed on both sides of motor II and on guide rail IV and screw rod III, respectively, guide grooves are provided on hook connection block III and hook connection block IV to match guide rail IV, motor II drives screw rod III to rotate, screw rod III (positive and negative wire) drives hook connection block III and hook connection block IV to move left and right, and move along guide rail IV. When motor II rotates forward, screw rod III drives hook connection block III and hook connection block IV to approach motor II, and when motor II rotates reversely, screw rod III drives hook connection block III and hook connection block IV to move away from motor II.

[0052] A guide rail III4 parallel to the guide rail IV9 and a screw rod II6 parallel to the screw rod III7 are provided on the motor III2, the guide rail III4 is arranged on the screw rod II6, a hook connection block I5 and a hook connection block II15 are respectively installed on both sides of the motor III and on the guide rail III and the screw rod II, a guide groove is respectively provided on the hook connection block I and the hook connection block II to match the guide rail III, the motor III drives the screw rod II to rotate, the screw rod II drives the hook connection block I5 and the hook connection block II15 to move left and right, and move along the guide rail III. When the motor III rotates forward, the screw rod II drives the hook connection block I and the hook connection block II to approach the motor III, and when the motor III rotates reversely, the screw rod II drives the hook connection block I and the hook connection block II to move away from the motor III.

[0053] (3) A lifting chain assembly, comprising a lifting chain connecting block I5, a lifting chain connecting block II15, a lifting chain connecting block III8, a lifting chain connecting block IV13, and a lifting chain 14 installed thereon (a lifting chain ring 18 is installed on the lifting chain connecting block, and a lifting hook is provided under the lifting chain).

[0054] Install a lifting eye screw on the top of the low-voltage unit, hook it together with the lifting chain hook of the double C-type lifting device, adjust the driving position, and slowly push the low-voltage unit to the specified position.

[0055] The lifting is carried out by using a combination of double C-type slings and lifting chains: the hook spacing is automatically adjusted front, back, left and right by the motor screw.

[0056] The process is as follows:

[0057] (1) Use a double C-type sling and a sling chain assembly to smoothly lift and move the low-voltage unit 28;

[0058] (2) Use the motor to adjust the front, back, left and right positions of the hook connection block to ensure that the front and back distance of the lifting chain assembly is consistent with the spacing between the lifting holes of the low-voltage unit;

[0059] (3) Use a crane to lift the double C-type lifting device, hook the lifting chain hook with the lifting eye screw on the low-voltage unit, adjust the position of the crane, and slowly push the low-voltage unit into the fixed position.

[0060] The hook spacing is adjusted as follows:

[0061] ① Adjustment of hook spacing: Motor I moves, driving lead screw I (positive and negative lead screw) to rotate, and lead screw I drives motor II and motor III to move forward and backward along guide rails I and II; when remote-controlled motor I is in forward transmission, motors II and III move closer to the middle along guide rails I and II, and the spacing decreases; when remote-controlled motor I is in reverse transmission, motors II and III move away from both sides along guide rails I and II, and the spacing increases;

[0062] ② Adjust the hook spacing left and right: remote control motors II and III are in motion, driving lead screws II and III (positive and negative lead screws) to rotate, and lead screws II and III drive hook connection blocks I, II, III, and IV to move left and right along the guide rails; when remote control motors II and III are in forward motion, hook connection blocks I and II move closer to motor III along guide rail III, and hook connection blocks III and IV move closer to motor II along guide rail IV, and the spacing decreases; when remote control motors II and III are in reverse motion, hook connection blocks I and II move away from motor III on both sides along guide rail III, and hook connection blocks III and IV move away from motor II on both sides along guide rail IV, and the spacing increases;

[0063] ③ According to the above operation, adjust the hook to the top of the low-voltage unit cabinet hook, and hang the double C-type lifting device and chain assembly tooling chain to the low-voltage unit cabinet top ring; double C-type lifting device to increase the lifting stability, the C-type lifting device and hook plate assembly weldment are positioned by the axle pin to prevent loosening and slipping, and are easy to disassemble. Use the crane to lift the C-type lifting device and chain assembly to slowly push the low-voltage unit into the installation position.

[0064] The patent of the present invention adopts a double C-type sling, on which a motor, a lead screw and a guide rail are installed, and the length of the lifting chain connecting block is adjusted by the forward or reverse rotation of the motor to adapt to different low-voltage unit sizes. The C-type sling and the lifting chain assembly are hoisted by a crane to slowly push the low-voltage unit into the box transformer installation position, and the low-voltage unit is pushed in from the side of the box transformer 27. The patent of the present invention can change the current low-voltage unit assembly process, and solve the problem that the top cover of the box transformer product shell cannot be removed, resulting in the low-voltage unit being unable to be hoisted into the box from the top of the box transformer top cover. Example

[0065] According to actual conditions, the screw rod can also be set as a co-directional screw rod, that is, the distance between motor II and motor III and motor I is fixed, the distance between guide rail connecting block I and guide rail connecting block II and motor III is fixed, and the distance between guide rail connecting block III and guide rail connecting block IV and motor II is fixed. By adjusting motor I, the low-voltage unit installed on the double C-type hanger is adjusted to enter the installation position front and back; by adjusting motor II and motor III, the left and right distance of the low-voltage unit is adjusted to enter the installation position.

[0066] The above-mentioned illustrations and specific implementations are only specific descriptions of the feasible implementations of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent implementations or changes that do not deviate from the core of the present invention are included in the scope of the present invention.

Claims

1. Assembly process of low voltage device of new energy box-type substation, characterized in that: It includes a double C-type sling and a sling chain assembly installed on the double C-type sling; The double C-shaped sling is composed of two parallel C-shaped slings (20) and fixed together by a combination piece; The lifting chain assembly comprises a lifting chain connecting block, a lifting chain installed on the lifting chain connecting block and a lifting hook under the lifting chain; The assembly comprises a fixed seat (26), a U-shaped member (23), a crossbeam (25) and a longitudinal beam (21) which are connected in combination. Each C-shaped sling is composed of an upper crossbeam (20-1), a lower crossbeam (20-3) and a side longitudinal beam (20-2) connecting the upper crossbeam and the lower crossbeam. A reinforcing rib (22) is installed on the fixed seat (26) and is fixedly connected to the lower crossbeam (20-3) of the C-shaped sling. There are four U-shaped members (23) in total, which are arranged in groups of two and pass through the lower crossbeam (20-3) of each C-shaped sling respectively, and the U-shaped members are fixed to the lower crossbeam by positioning pins (24). There are a plurality of crossbeams (25) connected to the double C-shaped sling, and arranged between the two upper crossbeams (20-1) and between the two lower crossbeams (20-3) of the double C-shaped sling; a guide rail mounting seat (17) is arranged on the two lower crossbeams (20-3), the bottom of the guide rail mounting seat is fixedly connected to the U-shaped member, and two parallel guide rails are arranged on the guide rail mounting seat, namely guide rail I (12) and guide rail II (11); The motor I (1) is rotatably mounted on a screw rod I (3). The screw rod I is also provided with a motor II (10) and a motor III (2), which are respectively arranged at the front and rear sides of the motor I (1). The bottoms of the motor II (10) and the motor III (2) are respectively provided with guide grooves (16), and the guide grooves (16) are slidably connected to the guide rails I (12) and II (11). A guide rail IV (9) and a screw rod III (7) are mounted on the motor II (10), the guide rail IV (9) being arranged on the screw rod III (7), a hook connection block III (8) and a hook connection block IV (13) are mounted on both sides of the motor II and on the guide rail IV and the screw rod III, respectively, and guide grooves are provided on the hook connection block III and the hook connection block IV to match the guide rail IV; A guide rail III (4) parallel to the guide rail IV (9) and a screw rod II (6) parallel to the screw rod III (7) are provided on the motor III (2); the guide rail III (4) is arranged on the screw rod II (6); a hook connection block I (5) and a hook connection block II (15) are respectively installed on both sides of the motor III and on the guide rail III and the screw rod II; the hook connection block I and the hook connection block II are respectively provided with guide grooves for matching with the guide rail III; There is one longitudinal beam (21), which is vertically arranged on a cross beam (25) between two lower cross beams of the double C-shaped sling, and a motor I (1) is installed on the top of the longitudinal beam.

2. The assembly process of low-voltage device of new energy box-type substation according to claim 1 is characterized in that: The bottoms of the hook connection block I, the hook connection block II, the hook connection block III and the hook connection block IV are all provided with a lifting chain (14), and the bottoms of the lifting chains are all provided with a lifting hook.

3. The assembly process of low-voltage device of new energy box-type substation according to claim 1 is characterized in that: The U-shaped piece and the lower cross beam are both provided with corresponding holes for installing the positioning pins.

4. The assembly process of low-voltage device of new energy box-type substation according to claim 1 is characterized in that: A lifting lug (19) is provided on the top of the upper cross beam.

5. The assembly process of low-voltage device of new energy box-type substation according to claim 4 is characterized in that: The double C-type sling is lifted by a crane, which hooks the lifting lug (19). A lifting eye screw is provided on the top of the low-voltage unit, which is hooked together with the lifting chain hook of the double C-type sling. The position of the crane is adjusted so that the low-voltage unit is slowly pushed into the specified position.

6. The assembly process of low-voltage device of new energy box-type substation according to claim 1 is characterized in that: The arrangement direction of the two parallel guide rails is the same as the arrangement direction of the lower cross beam of the double C-type sling.

7. The assembly process of low-voltage device of new energy box-type substation according to claim 1 is characterized in that: The arrangement direction of the crossbeam is the same as that of the guide rail mounting seat.

8. The assembly process of low-voltage device of new energy box-type substation according to claim 1 is characterized in that: The screw rod I, screw rod II and screw rod III are bidirectional screw rods respectively.

9. The assembly process of low-voltage device of new energy box-type substation according to claim 8, characterized in that: When motor I rotates forward, screw rod I drives motor II and motor III to approach motor I. When motor I rotates reversely, screw rod I drives motor II and motor III to move away from motor I. The motor II rotates forward, and the screw rod III drives the hook connection block III and the hook connection block IV to approach the motor II. The motor II rotates reversely, and the screw rod III drives the hook connection block III and the hook connection block IV to move away from the motor II. The motor III rotates forward, and the screw rod II drives the hook connection block I and the hook connection block II to approach the motor III. The motor III rotates reversely, and the screw rod II drives the hook connection block I and the hook connection block II to move away from the motor III.

10. The assembly process of low-voltage device of new energy box-type substation according to claim 1 is characterized in that: Contains the following methods: ⑴ Use the double C-type lifting device and lifting chain combination to coordinate the smooth lifting and movement of the low-voltage unit; (2) Use the motor to adjust the front, back, left and right positions of the hook connection block to ensure that the front and back distance of the lifting chain assembly is consistent with the spacing between the lifting holes of the low-voltage unit; (3) Use a crane to lift the double C-type lifting device, hook the lifting chain hook with the lifting eye screw on the low-voltage unit, adjust the position of the crane, and slowly push the low-voltage unit into the fixed position.

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