阅读说明：本技术 一种可同步升降的变电站 (Transformer substation capable of synchronously lifting ) 是由 司小庆 俞伟 徐若海 邹闰华 翟晓东 黄薇 徐铭 姜华 赵文幸 于 2021-09-30 设计创作，主要内容包括：本发明公开了一种可同步升降的变电站,包括机架、承载平台、变压器、以及同步升降机构,所述同步升降机构包括多根螺纹穿设于所述承载平台中的螺杆、多个分别套设于所述的多根螺杆上的第一传动轮、多个绕着竖直方向可转动的设于所述机架上的第二传动轮、与所述的多个第一传动轮和所述的多个第二传动轮相传动连接的传动带、以及驱动组件,其中,多个所述的第一传动轮围合形成一多边形,所述的多个第二传动轮位于所述多边形的内部。本发明的变电站,通过设置多个第二传动轮来改变相邻两个第一传动轮之间的传动带的传动方向,减小了传动带与第一传动轮之间的传动角度,避免了传动带与第一传动轮之间发生松动、跳齿的现象。(The invention discloses a transformer substation capable of synchronously lifting, which comprises a rack, a bearing platform, a transformer and a synchronous lifting mechanism, wherein the synchronous lifting mechanism comprises a plurality of screws which are arranged in the bearing platform in a penetrating way, a plurality of first driving wheels which are respectively sleeved on the screws, a plurality of second driving wheels which are arranged on the rack in a rotatable way along the vertical direction, a driving belt which is in transmission connection with the plurality of first driving wheels and the plurality of second driving wheels, and a driving assembly, wherein the plurality of first driving wheels are enclosed to form a polygon, and the plurality of second driving wheels are positioned in the polygon. According to the transformer substation, the transmission direction of the transmission belt between two adjacent first transmission wheels is changed by arranging the plurality of second transmission wheels, the transmission angle between the transmission belt and the first transmission wheels is reduced, and the phenomena of looseness and tooth jumping between the transmission belt and the first transmission wheels are avoided.)

1. The utility model provides a transformer substation that can go up and down in step, includes locating of frame, liftable bearing platform in the frame, install in transformer on the bearing platform, its characterized in that: the transformer substation is still including being used for the drive the synchronous elevating system that load-bearing platform goes up and down, synchronous elevating system includes many and locates around its self axial is rotatable respectively in the frame and the screw thread wears to locate screw rod, a plurality of respectively one-to-one cover in the load-bearing platform locate many screw rods on first drive wheel, a plurality of rotatable locating round vertical direction just correspond respectively in the frame and be located adjacent two first drive wheel between second drive wheel, with a plurality of first drive wheels with a plurality of second drive wheel looks drive connection's drive belt, be used for the drive assembly of drive belt motion, wherein, a plurality of first drive wheel enclose and close and form a polygon, a plurality of second drive wheels be located polygonal inside.

2. A synchronously liftable substation according to claim 1, characterized in that: the transformer substation is characterized in that the rack comprises a top frame and a bottom frame which are arranged up and down and are parallel to each other, the transformer substation further comprises a plurality of plane bearings arranged on the top frame, and the upper ends of the screw rods are rotatably connected to the upper ends and the lower ends of the plane bearings and are located above the bottom frame.

3. A synchronously liftable substation according to claim 2, characterized in that: the transformer substation further comprises a plurality of first bearing seats which are arranged on the top frame and are respectively and correspondingly located below the plane bearing, and a plurality of second bearing seats which are arranged on the bottom frame and are respectively provided with bearings, wherein the bearings are arranged in the first bearing seats and correspond to the first bearing seats one by one, and two ends of the screw rod are respectively and rotatably arranged in the first bearing seats and the second bearing seats in a penetrating manner.

4. A synchronously liftable substation according to claim 1, characterized in that: the first driving wheels are sleeved at the lower end parts of the screws, and the plurality of second driving wheels and the plurality of first driving wheels are positioned in the same plane which is parallel to the plane where the bearing platform is positioned.

5. A synchronously liftable substation according to claim 4, characterized in that: the second transmission wheel is positioned on a perpendicular bisector of a connecting line between two adjacent first transmission wheels.

6. A synchronously liftable substation according to claim 5, characterized in that: at least one second driving wheel is arranged in a slidable mode along the extending direction of the corresponding perpendicular bisector.

7. A synchronously liftable substation according to claim 1, characterized in that: the driving assembly comprises a tension wheel, a driving wheel and a motor, wherein the tension wheel and the driving wheel are respectively connected to the driving belt in a transmission mode, the motor is used for driving the driving wheel to rotate, the tension wheel and the driving wheel are respectively located on the inner side and the outer side of the polygon, and the rotating axes of the tension wheel and the driving wheel extend along the vertical direction.

8. A synchronously liftable substation according to claim 7, characterized in that: the transformer substation further comprises a mounting plate which is vertically arranged on the rack and used for mounting the motor, a through groove which is arranged at the lower part of the mounting plate, and the transmission belt penetrates through the through groove.

9. A synchronously liftable substation according to claim 1, characterized in that: the bearing platform is characterized in that screw holes are respectively formed in the corners of the periphery of the bearing platform, and the screw rods axially penetrate through the screw holes and are in threaded connection with the screw holes.

10. A synchronously liftable substation according to claim 9, characterized in that: the bearing platform comprises a platform body and a plurality of lifting seats detachably connected to the platform body, and the screw holes are formed in the lifting seats.

Technical Field

The invention relates to the technical field of electric power, in particular to a transformer substation capable of synchronously lifting.

Background

The transformer substation is a place for changing voltage, and converts high-voltage current transmitted by a power plant into low-voltage current for users to use, so the transformer substation is generally arranged in a crowd-concentrated place. In consideration of safety, a lifting type transformer substation is generally adopted, the transformer substation is arranged on a lifting platform, the lifting platform is buried in a pit, and the lifting platform is lifted when maintenance and overhaul are carried out; or the lifting platform is usually set in a lifting state and then is lowered during maintenance and overhaul. Therefore, potential safety hazards of the transformer substation can be well eradicated.

Present lift platform, it includes platform body, lead screw, belt pulley and belt usually, specifically, on the rotatable bottom plate of locating of many lead screws, the belt pulley sets up in the lead screw tip, lift platform and lead screw threaded connection, during the lift, rotates through belt drive belt pulley, and the belt pulley drives the lead screw and rotates to the platform body can realize going up and down under the effect of lead screw. However, in the conventional lifting platform, the belt pulley is only arranged at the corner of the periphery of the bottom plate, so that the transmission angle between the belt and the belt pulley is too large, and the phenomena of looseness and tooth jumping between the belt and the belt pulley can be caused by a large transmission angle.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a transformer substation capable of synchronously lifting.

In order to achieve the purpose, the invention adopts the technical scheme that:

a transformer substation capable of synchronously lifting comprises a rack, a lifting bearing platform arranged on the rack, a transformer arranged on the bearing platform, and a synchronous lifting mechanism for driving the bearing platform to lift, wherein the synchronous lifting mechanism comprises a plurality of screws which are rotatably arranged on the rack around the axial direction of the screws, a plurality of first transmission wheels which are respectively sleeved on the screws, a plurality of second transmission wheels which are rotatably arranged on the rack around the vertical direction and are respectively and correspondingly positioned between two adjacent first transmission wheels, a transmission belt which is in transmission connection with the first transmission wheels and the second transmission wheels, and a driving assembly for driving the transmission belt, wherein the first transmission wheels surround to form a polygon, the plurality of second driving wheels are positioned inside the polygon.

Preferably, the rack comprises a top frame and a bottom frame which are arranged up and down and are parallel to each other, the transformer substation further comprises a plurality of plane bearings arranged on the top frame, and the upper ends of the screws are rotatably connected to the upper ends and the lower ends of the plane bearings and are located above the bottom frame.

Preferably, the transformer substation further comprises a plurality of first bearing seats which are arranged on the top frame and respectively correspond to the first bearing seats which are arranged below the plane bearing and are internally provided with bearings, a plurality of second bearing seats which are arranged on the bottom frame and are respectively in one-to-one correspondence with the first bearing seats and are internally provided with bearings, and two end parts of the screw rod are respectively and rotatably arranged in the first bearing seats and the second bearing seats in a penetrating manner.

Preferably, the first driving wheels are sleeved at the lower end parts of the screws, the second driving wheels and the first driving wheels are located in the same plane, and the plane is parallel to the plane where the bearing platform is located.

Further preferably, the second transmission wheel is located on a perpendicular bisector of a connecting line between two adjacent first transmission wheels.

Still further preferably, at least one of the second transmission wheels is slidably disposed along an extending direction of the corresponding perpendicular bisector.

Preferably, the driving assembly includes a tension wheel, a driving wheel and a motor, the tension wheel and the driving wheel are respectively connected to the driving belt in a transmission manner, the motor is used for driving the driving wheel to rotate, the tension wheel and the driving wheel are respectively located at the inner side and the outer side of the polygon, and the rotation axes of the tension wheel and the driving wheel extend along the vertical direction.

Further preferably, the transformer substation further comprises a mounting plate vertically arranged on the rack and used for mounting the motor, a through groove formed in the lower portion of the mounting plate, and the transmission belt penetrates through the through groove.

Preferably, the bearing platform is provided with screw holes at the corners of the periphery, and the screw rod is axially inserted into the screw holes and is in threaded connection with the screw holes.

Further preferably, the bearing platform comprises a platform body and a plurality of lifting seats detachably connected to the platform body, and the screw holes are formed in the lifting seats.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the transformer substation, the transmission direction of the transmission belt between two adjacent first transmission wheels is changed by arranging the plurality of second transmission wheels, the transmission angle between the transmission belt and the first transmission wheels is reduced, and the phenomena of looseness and tooth jumping between the transmission belt and the first transmission wheels are avoided.

Drawings

Fig. 1 is a schematic structural diagram of a substation in an embodiment of the present invention;

FIG. 2 is a schematic view of the direction A-A of FIG. 1;

FIG. 3 is a schematic view of the direction B-B in FIG. 1;

fig. 4 is a schematic structural diagram of a second transmission wheel mounted on a wheel seat in an embodiment of the present invention.

In the figure: 1. a frame; 1a, a top frame; 1b, a bottom frame; 2. a load-bearing platform; 2a, a platform body; 2b, a lifting seat; 3. a transformer; 4. a synchronous lifting mechanism; 4a, a screw rod; 4b, a first drive wheel; 4c, a second driving wheel; 4d, a transmission belt; 4e, a driving component; 4e1, tension wheel; 4e2, drive wheels; 4e3, motor; 5. a flat bearing; 6. a bearing; 7. a first bearing housing; 8. a second bearing 6 seat; 9. a first long hole; 10. a wheel seat; 11. a second long hole; 12. mounting a plate; 13. and a screw hole.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings.

The invention relates to improvement of a transformer substation, and provides a transformer substation capable of synchronously lifting, wherein a plurality of second transmission wheels 4c are arranged to change the transmission direction of a transmission belt 4d between two adjacent first transmission wheels 4b, so that the transmission angle between the transmission belt 4d and the first transmission wheels 4b is reduced, and the phenomena of looseness and tooth jumping between the transmission belt 4d and the first transmission wheels 4b are avoided.

Referring to fig. 1-3, a transformer substation capable of synchronously lifting comprises a frame 1, a bearing platform 2 arranged on the frame 1 in a lifting manner, a transformer 3 mounted on the bearing platform 2, and a synchronous lifting mechanism 4 for driving the bearing platform 2 to lift, wherein the transformer 3 is connected with an external circuit through a cable. The synchronous lifting mechanism 4 comprises four screws 4a which are respectively arranged on the frame 1 in a rotatable manner around the self axial direction and are threaded through the bearing platform 2, four first transmission wheels 4b which are respectively sleeved on the lower end parts of the four screws 4a in a one-to-one correspondence manner, four second transmission wheels 4c which are arranged on the frame 1 in a rotatable manner around the vertical direction and are respectively positioned between two adjacent first transmission wheels 4b in a corresponding manner, a transmission belt 4d in transmission connection with the four first transmission wheels 4b and the four second transmission wheels 4c, and a driving assembly 4e for driving the transmission belt 4d to move, wherein the four second transmission wheels 4c and the four first transmission wheels 4b are positioned in the same plane, the plane is parallel to the plane where the bearing platform 2 is positioned, the four first transmission wheels 4b are enclosed to form a rectangle, and the distance between the two opposite second transmission wheels 4c positioned in the rectangle is smaller than the distance between the two adjacent first transmission wheels 4b The distance between them.

In this example, referring to fig. 3, the supporting platform 2 includes a platform body 2a, a plurality of detachable lifting seats 2b connected to the platform body 2a, and a screw hole 13 opened on the lifting seat 2b, and the screw rod 4a is inserted into the screw hole 13 along the axial direction thereof and is in threaded connection with the screw hole 13.

Therefore, when the bearing platform is lifted, the driving assembly 4e drives the transmission belt 4d to move, and the transmission belt 4d drives the first transmission wheels 4b and the second transmission wheels 4c to synchronously rotate, so that the synchronous rotation of the screw rods 4a is realized, and the synchronous lifting of each corner of the bearing platform is finally realized; the second transmission wheel 4c can tension the transmission belt 4d, so that the transmission angle between the first transmission wheel 4b and the transmission belt 4d is ensured, and the phenomena of looseness and tooth jumping are avoided.

In this embodiment, as shown in fig. 1, the rack 1 includes a top frame 1a and a bottom frame 1b which are arranged vertically and parallel to each other, the substation further includes a plurality of plane bearings 5 disposed on the top frame 1a, and the upper end of the screw rod 4a is rotatably connected to the plane bearings 5, and the lower end of the screw rod is located above the bottom frame 1 b. Therefore, the upper end of the screw rod 4a is connected to the plane bearing 5, so that in the lifting process of the bearing platform 2, stress points of the screw rod 4a are all concentrated at the connection position of the upper end of the screw rod 4a and the plane bearing 5, the lower end of the screw rod 4a is not stressed, and the screw rod 4a is prevented from being bent and deformed due to compression in the lifting process of the bearing platform 2.

The transformer substation further comprises a plurality of first bearing seats 7 which are arranged on the top frame 1a and respectively correspond to the first bearing seats 7 which are arranged below the plane bearing 5 and are internally provided with bearings 6, a plurality of second bearing seats 8 which are arranged on the bottom frame 1b and are respectively in one-to-one correspondence with the first bearing seats 7 and are internally provided with bearings 6, and two end parts of the screw rod 4a are respectively and rotatably arranged in the first bearing seats 7 and the second bearing seats 8 in a penetrating mode. Like this, the upper end and the lower tip of screw rod 4a can realize spacingly through first bearing frame 7 and second bearing frame 8, avoid screw rod 4a to take place to rock at the in-process that load-bearing platform 2 goes up and down, and wherein, bearing 6 in first bearing frame 7 and the second bearing frame 8 is antifriction bearing.

In the present embodiment, as shown in fig. 2, the second transmission wheel 4c is located on a midperpendicular of a connecting line between two adjacent first transmission wheels 4 b. So, can enough guarantee the transmission angle between drive belt 4d and the first drive wheel 4b, can guarantee again the balance between two first drive wheels 4b of second drive wheel 4c both sides, guarantee the stability that load-bearing platform 2 goes up and down.

Further, at least one second transmission wheel 4c is slidably arranged along the extension direction of the corresponding perpendicular bisector. In this example, a second transmission wheel 4c, located on the opposite side of the drive assembly 4e, is slidably arranged. So, can realize the adjustment to the transmission angle between drive belt 4d and the first drive wheel 4b through the slip of second drive wheel 4c, can artificially adjust the tensioning when drive belt 4d is not hard up, guaranteed synchronous elevating system 4's drive effect.

Specifically, as shown in fig. 4, the substation further includes a first long hole 9 provided in the bottom frame 1b and extending along the extending direction of the perpendicular bisector, a wheel seat 10 slidably provided in the bottom frame 1b, a second long hole 11 provided at a side of the wheel seat 10 and aligned with the extending direction of the first long hole 9, and a bolt (not shown) sequentially passing through the first long hole 9 and the second long hole 11. The first long hole 9, the second long hole 11 and the bolt are matched to realize the sliding of the wheel seat 10.

The driving assembly 4e comprises a tension wheel 4e1, a driving wheel 4e2 and a motor 4e3, wherein the tension wheel 4e1 and the driving wheel 4e2 are respectively connected to the driving belt 4d in a transmission mode, the motor 4e3 is used for driving the driving wheel 4e2 to rotate, the tension wheel 4e1 and the driving wheel 4e2 are respectively located on the inner side and the outer side of the polygon, and the rotation axes of the tension wheel 4e1 and the driving wheel 4e2 respectively extend along the vertical direction. The driving effect of the motor 4e3 on the first transmission wheel 4b and the second transmission wheel 4c is ensured by the arrangement of the tension wheel 4e 1.

The substation further comprises a mounting plate 12 vertically arranged on the rack 1 and used for mounting the motor 4e3, and a through groove (not shown in the figure) arranged at the lower part of the mounting plate 12, wherein the driving belt 4d penetrates through the through groove.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.