CN114038652B

CN114038652B - Pole-mounted transformer installation auxiliary device

Info

Publication number: CN114038652B
Application number: CN202111158229.4A
Authority: CN
Inventors: 马新建; 张海涛; 袁硕; 王硕; 吴强新; 陈美玲; 李蒙; 赵平顺; 高鑫; 原一杰
Original assignee: Caoxian Power Supply Co of State Grid Shandong Electric Power Co Ltd
Current assignee: Caoxian Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-07-15
Anticipated expiration: 2041-09-30
Also published as: CN114038652A

Abstract

The invention discloses an auxiliary device for mounting a pole-mounted transformer, and relates to the technical field of power construction equipment. The device comprises a bottom plate, wherein a first mounting frame and a second mounting frame are fixedly arranged at the left end and the right end of the bottom plate respectively. First mounting bracket on slide and be provided with first jacking frame, first mounting bracket and first jacking frame between be provided with first driver part. The second mounting bracket on slide and be provided with second jacking frame, second mounting bracket and second jacking frame between be provided with second driver part. The first jacking frame is provided with a truss, and when the first jacking frame and the second jacking frame are both located at the upper limit position, the second jacking frame can support the truss. The truss is provided with a hoisting component in a sliding mode, and a third driving component is arranged between the hoisting component and the truss. The device small in size is light, and stable in structure is reliable, has made things convenient for the installation of pole mounted transformer, can effectual improvement installation effectiveness.

Description

Pole-mounted transformer installation auxiliary device

Technical Field

The invention relates to the technical field of power construction equipment, in particular to an auxiliary device for mounting a pole-mounted transformer.

Background

The pole-mounted transformer is an outdoor distribution transformer mounted on an electric pole, and the mounting height of the pole-mounted transformer is required to be more than 2.5 meters, and is generally between 2.5 meters and 3 meters.

At present, the mounting means of transformer on post mainly hoists through the crane, adopts the crane to hoist and mount and mainly has the following problem in several respects:

first, equipment such as cranes need to be rented, which is costly.

Secondly, other electric facilities are often installed on the pole of the transformer on the mounting column, and the boom needs to be extended out when the crane lifts, so that the boom is relatively long and is easy to damage other electric facilities.

Thirdly, the crane is more suitable for open field and flat ground places due to the large volume and the large construction radius, and the pole-mounted transformer is often installed in mountainous areas or in cells with more surrounding buildings, so that the construction cannot be completed due to the limitation of construction places.

Disclosure of Invention

In order to solve the problems, the invention provides the auxiliary device for mounting the pole-mounted transformer, which is small and light in size, stable and reliable in structure, suitable for mounting the pole-mounted transformer, convenient for mounting the pole-mounted transformer and capable of effectively improving the mounting efficiency.

The technical scheme adopted by the invention for solving the technical problems is as follows:

an auxiliary device for mounting a pole-mounted transformer comprises a bottom plate provided with movable wheels, wherein a first mounting frame and a second mounting frame are fixedly arranged at the left end and the right end of the bottom plate respectively;

a first jacking frame is arranged on the first mounting frame in a sliding manner, and a first driving part for driving the first jacking frame to slide up and down is arranged between the first mounting frame and the first jacking frame;

a second jacking frame is arranged on the second mounting frame in a sliding manner, and a second driving part for driving the second jacking frame to slide up and down is arranged between the second mounting frame and the second jacking frame;

the first jacking frame is provided with a truss, the suspended end of the truss extends to the position above the second jacking frame, and when the first jacking frame and the second jacking frame are both positioned at the upper limit positions, the second jacking frame can support the truss;

the truss is provided with a hoisting part in a sliding mode, and a third driving part used for driving the hoisting part to slide left and right is arranged between the hoisting part and the truss.

Further, the truss with first jacking frame sliding connection, first jacking frame and truss between be provided with and be used for the drive the truss for first jacking frame gliding fourth drive parts from top to bottom, the truss include with first jacking frame sliding connection's mount, hoisting part set up in the mount on, the free end of mount is provided with the expansion bracket, just the expansion bracket is controlled by positioning mechanism, works as the truss be located the upper limit position for first jacking frame, the expansion bracket be in the state of stretching out, works as the truss be in when lower limit position for first jacking frame, the expansion bracket be in the state of retracting.

Furthermore, the first jacking frame comprises a first square frame, two first guide rods are arranged in the first square frame, first guide holes matched with the first guide rods are formed in the fixing frame, the fourth driving part comprises first lead screws positioned in the first square frame, first nuts matched with the first lead screws are arranged on the fixing frame, a fourth driving motor is arranged on the first jacking frame, and a power output shaft of the fourth driving motor is connected with the first lead screws through a fourth transmission mechanism.

Furthermore, the lower extreme of first lead screw is provided with the worm wheel, the lower extreme of first square frame is located the both sides of worm wheel are provided with first landing leg respectively, the outside of first jacking frame be provided with the worm that the worm wheel meshed mutually, the both ends of worm respectively through bearing assembly with first landing leg rotate to be connected, fourth driving motor fixed set up in the inboard of first jacking frame, just fourth driving motor's power output shaft pass through synchronous belt drive, gear drive or chain drive with the worm link to each other.

Furthermore, the telescopic frame comprises a supporting beam, sliding insertion rods are arranged at two ends of the supporting beam respectively, insertion holes matched with the sliding insertion rods are formed in the fixing frame, a push rod is arranged on the supporting beam, the suspended end of the push rod penetrates through the fixing frame and extends to the left side of the fixing frame, a first spring used for blocking the supporting beam from being far away from the fixing frame is arranged on the push rod, and a guide wedge matched with the push rod is arranged at the upper end of the first jacking frame.

Further, the hoist and mount part including slide set up in balladeur train on the mount, the mount on be provided with two second guide bars, the balladeur train on be provided with second guide bar matched with slide, the mount on be located two the second guide bar between be provided with the second lead screw, the balladeur train on be provided with second lead screw matched with second screw, the mount on be provided with third driving motor, third driving motor's power output shaft pass through third drive mechanism with the second lead screw link to each other, the balladeur train on be provided with the winding roller and be used for driving winding roller pivoted fifth driving motor.

Furthermore, the below of truss is provided with the support bracket, just the both ends of support bracket respectively with first mounting bracket and second mounting bracket sliding connection, support bracket and first mounting bracket between, support bracket and second mounting bracket between all be provided with and be used for fixing the locking mechanism of support bracket.

Further, first mounting bracket including being located respectively the bottom plate preceding, the first grudging post of back both sides, preceding, the back both sides of first jacking frame respectively with first grudging post sliding connection, first drive component include first drive shaft, the both ends of first drive shaft are rotated with first grudging post through bearing assembly respectively and are connected, first drive shaft on the fixed first gear that is provided with, first jacking frame on the fixed first rack that is provided with first gear matched with, first mounting bracket on be provided with a driving motor, a driving motor's power output shaft through first drive mechanism with first drive shaft link to each other.

Further, the second mounting bracket including being located respectively the second grudging post of bottom plate preceding, back both sides, preceding, the back both sides of second jacking frame respectively with second grudging post sliding connection, second drive component include the second drive shaft, the both ends of second drive shaft are connected with the second grudging post rotation through bearing assembly respectively, the second drive shaft on the fixed second gear that is provided with, the second jacking frame on the fixed second rack that is provided with second gear matched with, the second mounting bracket on be provided with second driving motor, second driving motor's power output shaft pass through second drive mechanism with the second drive shaft link to each other.

The invention has the beneficial effects that:

1. for the traditional hoisting mode of a crane, the installation auxiliary device is small and exquisite in size, light and convenient, does not need a large construction site, and can be well adapted to the installation environment of the transformer on the column.

2. This installation auxiliary device is when carrying out hoist and mount during operation (being in when expandeing the state promptly), for frame structure for the both ends of the truss of hoist and mount transformer all have the support, for the mode of traditional cantilever hoist and mount, stable in structure is reliable.

3. The auxiliary mounting device is provided with the bearing bracket, so that a mounting platform is provided for workers, when the transformer is mounted, the operators can stand on the bearing bracket to adjust the position of the transformer, so that the mounting hole in the transformer is aligned with the mounting hole in the cross arm, and the fixed connection between the transformer and the cross arm is realized.

4. This installation auxiliary device can fold, and the installation auxiliary device after folding is small, convenient transportation.

Drawings

Fig. 1 is a perspective view of the installation assistance device;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is an enlarged schematic view of portion B of FIG. 1;

FIG. 4 is an enlarged schematic view of a portion C of FIG. 1;

FIG. 5 is an enlarged schematic view of a portion D of FIG. 1;

FIG. 6 is a schematic view of the structure of the push rod in cooperation with the guide wedge;

FIG. 7 is a schematic view of the connection between the mounting frame and the base plate;

FIG. 8 is an enlarged view of section E of FIG. 7;

FIG. 9 is a schematic perspective view of a first jacking frame;

FIG. 10 is an enlarged view of portion F of FIG. 9;

FIG. 11 is a schematic perspective view of a second jacking frame;

FIG. 12 is a top view of the truss;

FIG. 13 is a schematic perspective view of a truss;

FIG. 14 is a perspective view of the telescoping rack;

FIG. 15 is a perspective view of a lifting member;

FIG. 16 is a perspective view of the installation aid in a folded condition;

FIG. 17 is a schematic view of the structural configuration of the truss with the installation aid in a collapsed configuration;

FIG. 18 is an enlarged schematic view of portion G of FIG. 17;

FIG. 19 is an enlarged view of the portion H in FIG. 17;

FIG. 20 is a first flowchart of the operation;

FIG. 21 is a diagram of the second operation step;

FIG. 22 is a diagram of the third operation step;

FIG. 23 illustrates the fourth step of the operation;

fig. 24 is a diagram of the operation procedure five.

In the figure: 1-a bottom plate, 11-a moving wheel,

2-first mounting frame, 21-first upright, 22-first mounting beam, 23-first connecting beam, 24-first guide plate, 25-first connecting plate, 26-first driving shaft, 261-first gear, 27-first driving motor, 28-first transmission mechanism,

3-a second mounting frame, 31-a second upright post, 32-a second mounting beam, 33-a second connecting beam, 34-a second guide plate, 35-a second connecting plate, 36-a second driving shaft, 361-a second gear, 37-a second driving motor, 38-a second transmission mechanism,

4-a first jacking frame, 41-a first upper longitudinal beam, 411-a guide wedge block, 42-a first lower longitudinal beam, 43-a first vertical beam, 431-a first T-shaped sliding block, 432-a first rack, 44-a first leg, 45-a first guide rod, 46-a first lead screw, 461-a worm wheel, 47-a fourth driving motor, 48-a worm,

5-a second jacking frame, 51-a second upper longitudinal beam, 52-a second lower longitudinal beam, 53-a second vertical beam, 531-a second T-shaped sliding block, 532-a second rack, 54-a second supporting leg, 55-a supporting plate and 56-a limiting plate,

6-truss, 61-fixed frame, 611-cross beam, 612-first rib beam, 6121-first guide hole, 613-second rib beam, 614-third rib beam, 615-first screw nut, 616-second guide rod, 617-second screw rod, 618-third driving motor, 619-third transmission mechanism, 62-telescopic frame, 621-support beam, 622-plug rod, 623-push rod, 6231-baffle, 6232-first spring,

7-hoisting part, 71-sliding frame, 711-cylinder, 712-sliding seat, 7121-second guide hole, 713-second screw, 72-winding roller, 73-fifth driving motor, 74-fifth transmission mechanism,

8-support bracket, 81-cross bar, 82-longitudinal bar,

91-pole, 92-cross arm, 93-transformer.

Detailed Description

For convenience of description, a coordinate system is defined as shown in fig. 1, and the left-right direction is taken as a transverse direction, the front-back direction is taken as a longitudinal direction, and the up-down direction is taken as a vertical direction.

As shown in fig. 1, an installation assistance device for a pole transformer 93 includes a base plate 1, and a movable wheel 11 is provided on the base plate 1. The left and right ends of the bottom plate 1 are respectively provided with a first mounting frame 2 and a second mounting frame 3, and the first mounting frame 2 and the second mounting frame 3 are respectively fixedly connected with the bottom plate 1.

First mounting bracket 2 on be provided with can for first mounting bracket 2 up-down gliding first jacking frame 4, just first mounting bracket 2 and first jacking frame 4 between be provided with and be used for the drive first jacking frame 4 gliding first driver part from top to bottom.

The second mounting bracket 3 on be provided with for second mounting bracket 3 up-down gliding second jacking frame 5, just second mounting bracket 3 and second jacking frame 5 between be provided with and be used for the drive second jacking frame 5 up-down gliding second driver part.

The first jacking frame 4 is provided with a truss 6 which is transversely arranged, the right end of the truss 6 extends to the upper side of the second jacking frame 5, namely, the projections of the truss 6 and the second jacking frame 5 in the horizontal plane have an overlapped part. When first jacking frame 4 and second jacking frame 5 all be in when last extreme position, the up end of second jacking frame 5 with the downside laminating of truss 6, second jacking frame 5 to 6 formation supporting role of truss.

The truss 6 is provided with a hoisting component 7, the hoisting component 7 is connected with the truss 6 in a sliding mode, and a third driving component used for driving the hoisting component 7 to slide left and right relative to the truss 6 is arranged between the hoisting component 7 and the truss 6.

Furthermore, the truss 6 is connected with the first jacking frame 4 in a sliding manner, and a fourth driving component for driving the truss 6 to slide up and down along the first jacking frame 4 is arranged between the first jacking frame 4 and the truss 6. The truss 6 comprises a fixed frame 61 connected with the first jacking frame 4 in a sliding manner, an expansion frame 62 capable of sliding left and right relative to the fixed frame 61 is arranged at the right end of the fixed frame 61, the expansion frame 62 is controlled by a positioning mechanism, when the truss 6 is located at an upper limit position relative to the first jacking frame 4, the expansion frame 62 is in an extending state, and the projections of the expansion frame 62 in the extending state and the second jacking frame 5 in a horizontal plane have an overlapped part; when the truss 6 is at the lower limit position relative to the first jacking frame 4, the telescopic frame 62 is in the retracted state, and the right end face of the telescopic frame 62 in the retracted state is located on the left side of the left side face of the second jacking frame 5, that is, the projections of the telescopic frame 62 in the retracted state and the second jacking frame 5 in the horizontal plane are not overlapped.

The reason for this is that if the truss 6 is directly fixed on the first jacking frame 4, the installation auxiliary device after being folded is of a square frame structure, which is large in size and inconvenient to carry. The truss 6 is arranged on the first jacking frame 4 in a sliding mode, and the folded installation auxiliary device is shown in fig. 16, so that the folded installation auxiliary device is small in size, low in gravity center, not prone to toppling, and convenient to carry and transport.

As shown in fig. 7, the first mounting frame 2 includes first vertical frames respectively located at the front and rear sides of the bottom plate 1, and as a specific implementation manner, the first vertical frame in this embodiment includes two first vertical columns 21 extending in the vertical direction, and the lower ends of the first vertical columns 21 are fixedly connected to the bottom plate 1 by welding. A first mounting beam 22 is arranged between the two first upright columns 21, and the upper ends of the first upright columns 21 are fixedly connected with the first mounting beam 22 in a welding manner. Two the first grudging post between be located the outside of first grudging post (use first mounting bracket 2 and the relative one side of second mounting bracket 3 as the inboard) is provided with a plurality of first tie-beams 23, just the both ends of first tie-beam 23 are respectively through welded mode and the first stand 21 fixed connection that is located the outside. Preferably, a plurality of said first connecting beams 23 are arranged uniformly in the vertical direction. The first vertical frame and the first connecting beam 23 together form a U-shaped structure with an opening facing the inside (the opposite side of the first mounting frame 2 and the second mounting frame 3 is the inside).

As shown in fig. 9, the first jacking frame 4 includes a first upper longitudinal beam 41, a first lower longitudinal beam 42, and two first vertical beams 43 for connecting the first upper longitudinal beam 41 and the first lower longitudinal beam 42, and the first upper longitudinal beam 41, the first lower longitudinal beam 42, and the first vertical beams 43 together form a first square frame. Two first legs 44 are provided on the lower side of the first lower longitudinal beam 42. Preferably, an upper end surface of the first vertical beam 43 is flush with an upper side surface of the first upper longitudinal beam 41, and a lower end surface of the first vertical beam 43 is flush with a lower end surface of the first leg 44.

As shown in fig. 2, 7 and 9, the first lifting frame 4 is located inside the first mounting frame 2, that is, the first lifting frame 4 is located between two first standing frames. The front side and the rear side of the first jacking frame 4 are respectively connected with the first vertical frame in a sliding manner through a first sliding assembly. As a specific implementation manner, the first sliding assembly in this embodiment includes a first guide plate 24 fixedly disposed on an inner side surface of the first vertical frame (a side opposite to the two first vertical frames is an inner side), the first guide plate 24 is provided with a first T-shaped sliding slot penetrating through the first guide plate 24 in a vertical direction, an outer side surface of the first vertical beam 43 of the first jacking frame 4 (a side opposite to the two first vertical beams 43 is an inner side) is provided with a first T-shaped sliding block 431 matched with the first T-shaped sliding slot, and upper and lower end surfaces of the first T-shaped sliding block 431 are aligned with an upper and lower end surfaces of the first jacking frame 4, respectively.

As shown in fig. 2, 7 and 9, the first driving part includes a first driving shaft 26 disposed between the two first vertical frames, and both ends of the first driving shaft 26 are respectively rotatably connected to the first vertical frames through bearing assemblies. In a specific embodiment, both ends of the first driving shaft 26 are respectively rotatably connected to the first mounting beam 22 of the first stand through a bearing assembly. A first gear 261 is fixedly arranged on the first driving shaft 26, and a first rack 432 matched with the first gear 261 is fixedly arranged on the first jacking frame 4.

Preferably, the first driving shaft 26 is located at the outer side of the first jacking frame 4 (one side of the first jacking frame 4 and one side of the second jacking frame 5 opposite to the first jacking frame 4 are the inner sides), two first gears 261 are fixedly arranged on the first driving shaft 26, two first racks 432 are correspondingly arranged on the first jacking frame 4, and preferably, the two first vertical beams 43 of the first jacking frame 4 are respectively provided with the first racks 432 matched with the corresponding first gears 261.

Further, the first driving part further comprises a first driving motor 27 fixedly arranged on the first mounting frame 2, and a power output shaft of the first driving motor 27 is connected with the first driving shaft 26 through a first transmission mechanism 28. Preferably, the first transmission mechanism 28 adopts a synchronous belt transmission.

As shown in fig. 7 and 8, the second mounting frame 3 includes second vertical frames respectively located at the front and rear sides of the bottom plate 1, and as a specific embodiment, the second vertical frame in this embodiment includes two second vertical columns 31 extending in the vertical direction, and the lower ends of the second vertical columns 31 are fixedly connected to the bottom plate 1 by welding. A second mounting beam 32 is arranged between the two second upright columns 31, and the upper ends of the second upright columns 31 are fixedly connected with the second mounting beam 32 in a welding manner. Two the second grudging post between be located the outside of second grudging post (use first mounting bracket 2 and the relative one side of second mounting bracket 3 as the inboard) is provided with a plurality of second tie-beams 33, just the both ends of second tie-beam 33 are respectively through welded mode and the second stand 31 fixed connection that is located the outside. Preferably, a plurality of second connecting beams 33 are uniformly arranged along the vertical direction. The second vertical frame and the second connecting beam 33 together form a U-shaped structure with an opening facing the inside (the opposite side of the first mounting frame 2 and the second mounting frame 3 is the inside).

As shown in fig. 11, the second jacking frame 5 includes a second upper longitudinal beam 51, a second lower longitudinal beam 52, and two second vertical beams 53 for connecting the second upper longitudinal beam 51 and the second lower longitudinal beam 52, and the second upper longitudinal beam 51, the second lower longitudinal beam 52, and the second vertical beams 53 together form a second square frame. Two second legs 54 are provided on the lower side of the second side sill 52. Preferably, an upper end surface of the second vertical beam 53 is flush with an upper side surface of the second upper longitudinal beam 51, and a lower end surface of the second vertical beam 53 is flush with a lower end surface of the second leg 54.

As shown in fig. 5, 7 and 11, the second lifting frame 5 is located inside the second mounting frame 3, that is, the second lifting frame 5 is located between two second vertical frames. The front side and the rear side of the second jacking frame 5 are respectively connected with the second vertical frame in a sliding manner through a second sliding assembly. As a specific implementation manner, the second sliding assembly in this embodiment includes a second guiding plate 34 fixedly disposed on an inner side surface of the second vertical frame (one side of the second vertical frame opposite to the second vertical frame is an inner side), the second guiding plate 34 is provided with a second T-shaped sliding slot penetrating through the second guiding plate 34 in the vertical direction, a second T-shaped sliding block 531 matched with the second T-shaped sliding slot is disposed on an outer side surface of the second vertical beam 53 of the second jacking frame 5 (one side of the second vertical beam 53 opposite to the second vertical beam is an inner side), and upper and lower end surfaces of the second T-shaped sliding block 531 are aligned with an upper and lower end surfaces of the second jacking frame 5, respectively.

As shown in fig. 1, 7 and 11, the second driving part includes a second driving shaft 36 disposed between the two second stands, and both ends of the second driving shaft 36 are respectively rotatably connected to the second stands through bearing assemblies. In a specific embodiment, both ends of the second driving shaft 36 are respectively connected to the second mounting beam 32 of the second vertical frame through a bearing assembly. The second driving shaft 36 is fixedly provided with a second gear 361, and the second jacking frame 5 is fixedly provided with a second rack 532 matched with the second gear 361.

Preferably, the second driving shaft 36 is located outside the second jacking frame 5 (one side of the second jacking frame 5 opposite to the first jacking frame 4 is the inner side of the second jacking frame 5), two second gears 361 are fixedly arranged on the second driving shaft 36, two second racks 532 are correspondingly arranged on the second jacking frame 5, and preferably, the two second vertical beams 53 of the second jacking frame 5 are respectively provided with the second racks 532 matched with the corresponding second gears 361.

Further, the second driving part further includes a second driving motor 37 fixedly disposed on the second mounting frame 3, and a power output shaft of the second driving motor 37 is connected to the second driving shaft 36 through a second transmission mechanism 38. Preferably, the second transmission mechanism 38 is a synchronous belt transmission.

As shown in fig. 14, the retractable frame 62 includes a supporting beam 621 extending along a longitudinal direction, two ends of the supporting beam 621 are respectively provided with a sliding insertion rod 622, and the fixing frame 61 is provided with an insertion hole matched with the sliding insertion rod 622.

As a specific embodiment, as shown in fig. 12 and 13, the fixing frame 61 in this embodiment includes two cross beams 611 extending in the left-right direction, and a first rib 612, a second rib 613, and a third rib 614 are sequentially disposed between the two cross beams 611 from left to right. Preferably, the left side surface of the first rib beam 612 is flush with the left end surface of the cross beam 611, and the right side surface of the third rib beam 614 is located on the left side of the right end surface of the cross beam 611. The right end of the cross beam 611 is provided with a jack matched with the sliding insertion rod 622. Preferably, the cross beam 611 is made of a square steel tube, the sliding insertion rod 622 is matched with the inner size of the square steel tube, and the sliding insertion rod 622 slides in the square steel tube in a reciprocating manner during operation.

As shown in fig. 9, two first guide rods 45 extending in the vertical direction are disposed between the first upper longitudinal beam 41 and the first lower longitudinal beam 42 of the first jacking frame 4, and two ends of each first guide rod 45 are respectively fixedly connected to the first upper longitudinal beam 41 and the first lower longitudinal beam 42. As shown in fig. 12 and 13, a first guiding hole 6121 is disposed on the first rib 612 and matches with the first guiding rod 45.

As shown in fig. 9, the fourth driving member includes a first lead screw 46 located between the two first guide rods 45, and upper and lower ends of the first lead screw 46 are rotatably connected to the first upper longitudinal beam 41 and the first lower longitudinal beam 42 through bearing assemblies, respectively. As shown in fig. 12 and 13, the first rib 612 is provided with a first nut body engaged with the first lead screw 46. As a specific embodiment, as shown in fig. 12 and fig. 18, the first nut body in this embodiment includes a first nut body, a connecting flange is fixedly disposed at a lower end of the first nut body, a mounting hole for accommodating the first nut body is disposed on the first rib 612, the first nut body is inserted into the mounting hole, the connecting flange is fixedly connected to a lower side surface of the first rib 612 through a screw, and an upper end surface of the first nut body is flush with an upper end surface of the first rib 612.

The lower end of the first jacking frame 4 is provided with a fourth driving motor 47, and a power output shaft of the fourth driving motor 47 is connected with the first lead screw 46 through a fourth transmission mechanism. As a specific embodiment, as shown in fig. 10, the fourth transmission mechanism in this embodiment includes a worm wheel 461 fixedly disposed at a lower end of the first lead screw 46, a worm 48 engaged with the worm wheel 461 is disposed at an outer side of the first lifting frame 4 (a side of the first lifting frame 4 opposite to the second lifting frame 5 is an inner side), and two ends of the worm 48 are respectively rotatably connected to the first support leg 44 through a bearing assembly. The fourth driving motor 47 is fixedly arranged on one of the first support legs 44, and a power output shaft of the fourth driving motor 47 is connected with the worm 48 through a synchronous belt transmission mechanism, a gear transmission mechanism or a chain transmission mechanism. Preferably, the power output shaft of the fourth driving motor 47 is connected to the worm 48 through a synchronous belt transmission mechanism.

As shown in fig. 12, fig. 13 and fig. 14, the positioning mechanism includes two push rods 623 disposed on the supporting beam 621, and a free end of each push rod 623 sequentially passes through the third rib beam 614, the second rib beam 613 and the first rib beam 612 and extends to the left side of the fixing frame 61, and the first rib beam 612, the second rib beam 613 and the third rib beam 614 are all provided with through holes for accommodating the push rods 623. A baffle 6231 is fixedly arranged on the push rod 623 between the first rib beam 612 and the second rib beam 613, and a first spring 6232 is sleeved on the push rod 623 between the baffle 6231 and the second rib beam 613. As shown in fig. 3 and 9, guide wedges 411 corresponding to the push rods 623 one to one are fixedly provided on an outer side surface of the first upper side member 41 of the first lift-up frame 4 (a side of the first lift-up frame 4 opposite to the second lift-up frame 5 is an inner side). As shown in fig. 4 and 6, when the truss 6 moves to the upper limit position relative to the first jacking frame 4, the push rod 623 moves to the right side under the action of the guide wedge 411, and the first spring 6232 is compressed, so that the telescopic frame 62 is in the extended state. When the truss 6 moves downwards relative to the first lifting frame 4, the push rod 623 moves leftwards under the action of the first spring 6232, so as to drive the supporting beam 621 to move leftwards until the push rod 623 completely disengages from the guide wedge 411, and at this time, the telescopic frame 62 is in a retracted state.

As shown in fig. 15, the lifting unit 7 includes a carriage 71 slidably disposed on the fixing frame 61, and a third driving unit for driving the carriage 71 to slide left and right relative to the fixing frame 61 is disposed between the carriage 71 and the fixing frame 61.

As a specific implementation manner, two second guide rods 616 are disposed between the second beam 613 and the third beam 614 in this embodiment, and two ends of the second guide rods 616 are respectively fixedly connected to the second beam 613 and the third beam 614. Preferably, two second guiding rods 616 are located between two pushing rods 623. The sliding frame 71 includes a cylinder 711 with a square cross section, sliding bases 712 are respectively disposed on inner side surfaces of a front side wall and a rear side wall of the cylinder 711, and a second guide hole 7121 matched with the second guide rod 616 is disposed on the sliding base 712.

The third driving part includes a second lead screw 617 disposed between the two second guiding rods 616, and two ends of the second lead screw 617 are respectively connected to the second rib beam 613 and the third rib beam 614 through a bearing assembly. A second nut 713 matched with the second lead screw 617 is fixedly arranged in the cylinder 711. A third driving motor 618 is arranged on the upper side surface of the fixing frame 61, and a power output shaft of the third driving motor 618 is connected with the second lead screw 617 through a third transmission mechanism 619. Preferably, the third transmission mechanism 619 uses a synchronous belt transmission.

A winding roller 72 is arranged below the cylinder 711, and two ends of the winding roller 72 are respectively rotatably connected with the lower side wall of the cylinder 711 through bearing assemblies. A fifth driving motor 73 is fixedly arranged on the upper side surface of the cylinder 711, and a power output shaft of the fifth driving motor 73 is connected with the winding roller 72 through a fifth transmission mechanism 74. Preferably, the fifth transmission mechanism 74 is a synchronous belt transmission.

A rope (not shown in the figure) for hoisting the transformer 93 is wound on the winding stick, one end of the rope is fixedly connected with the winding roller 72, and a hook is fixedly arranged at the free end of the rope.

Furthermore, a support bracket 8 is arranged between the first mounting frame 2 and the second mounting frame 3 and below the truss 6, and two ends of the support bracket 8 are respectively connected with the first mounting frame 2 and the second mounting frame 3 in a sliding manner. And locking mechanisms for fixing the supporting bracket 8 are arranged between the supporting bracket 8 and the first mounting frame 2 and between the supporting bracket 8 and the second mounting frame 3.

As a specific embodiment, as shown in fig. 7 and 8, the first and second vertical frames are respectively provided with a first connecting plate 25 and a second connecting plate 35 extending in the vertical direction on the inner side (the side opposite to the first and second mounting frames 2 and 3 is the inner side). The support bracket 8 comprises two cross bars 81, and a plurality of longitudinal bars 82 extending along the longitudinal direction are arranged between the two cross bars 81. The left and right ends of the cross bar 81 are respectively provided with a first positioning pin (not shown in the figure) and a second positioning pin (not shown in the figure), the first connecting plate 25 is provided with a first positioning hole matched with the first positioning pin, and the second connecting plate 35 is provided with a second positioning hole matched with the second positioning pin.

Further, as shown in fig. 11 and 17, a support plate 55 is disposed on an inner side surface of the second jacking frame 5, and when the first jacking frame 4 and the truss 6 are both at the lower limit position, a suspended end (right end) of the truss 6 is pressed against the support plate 55, and the support plate 55 supports the truss 6.

Further, as shown in fig. 11, the second upper longitudinal beam 51 is provided with a limiting plate 56 on each of the left and right sides, and an upper portion of the limiting plate 56 extends obliquely to the outer upper side.

In use, as shown in fig. 20, the first driving motor 27 is actuated to drive the first lifting frame 4 to move upwards to the upper limit position. Then, as shown in fig. 21, the fourth driving motor 47 is operated to drive the truss 6 to move upward to an upper limit position relative to the first jacking frame 4, and the telescopic frame 62 of the truss 6 is in an extended state. The entire installation aid is then moved so that truss 6 spans cross arm 92 on pole 91, i.e. the condition shown in figure 22. Then, as shown in fig. 23, the second driving motor 37 acts to drive the second lifting frame 5 to move upwards until the upper end of the second lifting frame 5 contacts with the lower side surface of the telescopic frame 62, so as to form a reliable support for the truss 6. Then, the transformer 93 to be mounted is placed on the support bracket 8, and the hook is hooked on the transformer 93. Then, the fifth drive motor 73 operates to hoist the transformer 93, and then the third drive motor 618 operates to move the transformer 93 to above the cross arm 92. The operator then lifts the support bracket 8 and mounts the support bracket 8 in place by means of the first and second locating pins. Then the operator stands on the support bracket 8, adjusts the position of the transformer 93, and lowers the transformer 93 until the transformer 93 is placed on the cross arm 92, and it is ensured that the mounting through holes are aligned, and then the fastening bolts are tightened.

Example two

The positioning mechanism includes a second spring disposed between the telescopic frame 62 and the fixing frame 61 for blocking the telescopic frame 62 from approaching the fixing frame 61, preferably, the second spring is disposed in the insertion hole, as a specific implementation manner, a top plate is disposed in the cross beam 611 in this embodiment, and a second spring is disposed between the top plate and the sliding insertion rod 622 in the cross beam 611. Guide posts are respectively arranged on the upper side and the lower side of the sliding plug-in rod 622, and guide slotted holes matched with the guide posts are respectively arranged on the upper side wall and the lower side wall of the cross beam 611. The third beam 614 is provided with an electromagnet for attracting the support beam 621. When the electromagnet is powered on, the supporting beam 621 moves leftwards under the attraction of the electromagnet, the second spring is compressed, and the telescopic frame 62 is in a retracted state; when the electromagnet is de-energized, the support beam 621 moves rightwards under the action of the second spring, and the telescopic frame 62 is in an extended state.

The rest structure is the same as the first embodiment.

EXAMPLE III

The sliding frame 71 comprises a web plate, wing plates which are perpendicular to the web plate and extend downwards are respectively arranged at the front end and the rear end of the web plate, and the web plate and the wing plates jointly form a U-shaped structure with an opening facing downwards. The sliding seat 712 and the second nut 713 are both fixedly arranged on the lower side of the web. The winding roller 72 is arranged between the two wing plates, and two ends of the winding roller 72 are respectively connected with the wing plates in a rotating manner through bearing assemblies. A fifth driving motor 73 is arranged on one of the wing plates, and a power output shaft of the fifth driving motor 73 passes through the wing plate and extends to the outside of the carriage 71. A power output shaft of the fifth driving motor 73 is connected to the winding roller 72 through a fifth transmission mechanism 74.

The rest structure is the same as the first embodiment.

Claims

1. The utility model provides a transformer installation auxiliary device on post which characterized in that: the device comprises a bottom plate provided with movable wheels, wherein a first mounting frame and a second mounting frame are fixedly arranged at the left end and the right end of the bottom plate respectively;

the first jacking frame is provided with a truss, the suspended end of the truss extends to the upper part of the second jacking frame, and when the first jacking frame and the second jacking frame are both positioned at the upper limit position, the second jacking frame can support the truss;

a hoisting part is arranged on the truss in a sliding manner, and a third driving part for driving the hoisting part to slide left and right is arranged between the hoisting part and the truss;

the truss is connected with the first jacking frame in a sliding mode, a fourth driving component used for driving the truss to slide up and down relative to the first jacking frame is arranged between the first jacking frame and the truss, the truss comprises a fixed frame connected with the first jacking frame in a sliding mode, the hoisting component is arranged on the fixed frame, an expansion frame is arranged at the suspended end of the fixed frame and is controlled by a positioning mechanism, when the truss is located at the upper limit position relative to the first jacking frame, the expansion frame is in an extending state, and when the truss is located at the lower limit position relative to the first jacking frame, the expansion frame is in a retracting state;

the first jacking frame comprises a first square frame, two first guide rods are arranged in the first square frame, a first guide hole matched with the first guide rods is formed in the fixing frame, the fourth driving part comprises a first lead screw positioned in the first square frame, a first screw matched with the first lead screw is arranged on the fixing frame, a fourth driving motor is arranged on the first jacking frame, and a power output shaft of the fourth driving motor is connected with the first lead screw through a fourth transmission mechanism.

2. The pole mounted transformer auxiliary device of claim 1, wherein: the lower extreme of first lead screw is provided with the worm wheel, the lower extreme of first square frame is located the both sides of worm wheel are provided with first landing leg respectively, the outside of first jacking frame be provided with worm wheel engaged with worm, the both ends of worm respectively through bearing assembly with first landing leg rotate to be connected, the fourth drive motor fixed set up in the inboard of first jacking frame, just fourth drive motor's power output shaft pass through synchronous belt drive, gear drive or chain drive with the worm link to each other.

3. The pole mounted transformer auxiliary device of claim 1, wherein: the telescopic frame comprises a supporting beam, sliding insertion rods are arranged at two ends of the supporting beam respectively, insertion holes matched with the sliding insertion rods are formed in the fixing frame, a push rod is arranged on the supporting beam, the suspended end of the push rod penetrates through the fixing frame and extends to the left side of the fixing frame, a first spring used for blocking the supporting beam to be away from the fixing frame is arranged on the push rod, and a guide wedge block matched with the push rod is arranged at the upper end of the first jacking frame.

4. The pole-mounted transformer installation aid of claim 1, wherein: the hoist and mount part including slide set up in balladeur train on the mount, the mount on be provided with two second guide bars, the balladeur train on be provided with second guide bar matched with slide, the mount on be located two the second guide bar between be provided with the second lead screw, the balladeur train on be provided with second lead screw matched with second screw, the mount on be provided with third driving motor, third driving motor's power output shaft pass through third drive mechanism with the second lead screw link to each other, the balladeur train on be provided with the winding roller and be used for the drive winding roller pivoted fifth driving motor.

5. The pole-mounted transformer installation aid of claim 1, wherein: the below of truss is provided with the support bracket, just the both ends of support bracket respectively with first mounting bracket and second mounting bracket sliding connection, support bracket and first mounting bracket between, support bracket and second mounting bracket between all be provided with and be used for fixing the locking mechanism of support bracket.

6. The pole-mounted transformer installation aid of claim 1, wherein: first mounting bracket including being located respectively the bottom plate preceding, the first grudging post of back both sides, preceding, the back both sides of first jacking frame respectively with first grudging post sliding connection, first driver part include first drive shaft, the both ends of first drive shaft are rotated with first grudging post through bearing assembly respectively and are connected, first drive shaft on the fixed first gear that is provided with, first jacking frame on the fixed first rack that is provided with first gear matched with, first mounting bracket on be provided with first driving motor, first driving motor's power output shaft through first drive mechanism with first drive shaft link to each other.

7. The pole-mounted transformer installation aid of claim 1, wherein: the second mounting bracket including being located respectively the second grudging post of preceding, back both sides of bottom plate, preceding, the back both sides of second jacking frame respectively with second grudging post sliding connection, second drive assembly include the second drive shaft, the both ends of second drive shaft are rotated with the second grudging post through bearing assembly respectively and are connected, the second drive shaft on fixedly be provided with the second gear, the second jacking frame on fixedly be provided with second gear matched with second rack, the second mounting bracket on be provided with second driving motor, second driving motor's power output shaft pass through second drive mechanism with the second drive shaft link to each other.