CN213988498U - Oil-immersed power transformer - Google Patents

Abstract

The utility model relates to the technical field of power transformers, and discloses an oil-immersed power transformer, which comprises a transformer body, wherein the upper end of the transformer body is connected with a sleeve, the sleeve is connected with a cable, and the cable is connected with the sleeve through a cable fixing mechanism; the cable fixing mechanism comprises a fixing pipe, the fixing pipe is fixedly sleeved on the outer side wall of the cable, a support ring is fixedly sleeved on the outer pipe wall of the sleeve, the fixing pipe is sleeved on the sleeve, the fixing pipe is arranged at the upper end of the support ring, the lower end pipe orifice of the fixing pipe is symmetrically and fixedly connected with support rods, support holes are formed in the positions, corresponding to the support rods, of the support ring, and one end, far away from the fixing pipe, of each support rod penetrates through the support holes and extends downwards. The utility model discloses it is fixed as an organic whole to fix pipe and support ring to with the firm fixed of cable and sleeve pipe together, avoid the cable to break away from the sleeve pipe, ensure the normal stable work of transformer, the convenient splits cable and sleeve pipe.

Description

Oil-immersed power transformer

Technical Field

The utility model relates to a power transformer technical field especially relates to an oil-immersed power transformer.

Background

The oil-immersed power transformer is a novel high-performance transformer with more reasonable structure and better performance, and the three-dimensional wound iron core has no air gap in a magnetic circuit because three core columns are arranged in an equilateral triangle in a three-dimensional way, so that the winding is tighter, the three magnetic circuits are consistent in length and shortest, and the cross sectional area of the core columns is closer to a circle, so that the performance is further improved, the loss is reduced, and the noise is reduced. At present, a connection mode of a sleeve and a cable on the transformer is simple, and the cable is easy to separate from the sleeve to influence the normal work of the transformer.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art transformer sleeve pipe and cable and carrying out connected mode simple, the cable breaks away from the problem that influences the normal work of transformer from the sleeve pipe easily, and the oil-immersed power transformer who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an oil-immersed power transformer comprises a transformer body, wherein the upper end of the transformer body is connected with a sleeve, the sleeve is connected with a cable, and the cable is connected with the sleeve through a cable fixing mechanism;

the cable fixing mechanism comprises a fixing pipe which is fixedly sleeved on the outer side wall of the cable, a support ring is fixedly sleeved on the outer pipe wall of the sleeve, the fixing pipe is sleeved on the sleeve, the fixing pipe is arranged at the upper end of the support ring, the lower end pipe orifice of the fixing pipe is symmetrically and fixedly connected with a support rod, a support hole is formed in the position, corresponding to the support rod, of the support ring, one end, far away from the fixing pipe, of the support rod penetrates through the support hole and extends downwards, a transmission groove is formed in the rod wall of the support rod, a spring is fixedly connected to the bottom of the transmission groove, a clamping block is fixedly connected to the other end of the spring, one end, far away from the spring, of the clamping block penetrates through a notch of the transmission groove and extends outwards, the clamping block located outside the transmission groove is arranged at the lower end of the support ring, a magnet and an iron sheet are arranged in the spring, and the magnet is fixedly connected to the bottom of the transmission groove, the iron sheet is fixedly connected to one end, close to the spring, of the clamping block.

Preferably, one end of the clamping block, which is far away from the spring, is fixedly connected with a pull ring, and the pull ring is wrapped with anti-slip cloth.

Preferably, the side wall of the clamping block close to one end of the spring is symmetrically and fixedly connected with sliding blocks, the groove wall of the transmission groove corresponding to the position of the sliding blocks is provided with matched sliding grooves, and the sliding blocks are slidably connected in the corresponding sliding grooves.

Preferably, the sliding chute is internally and fixedly connected with a sliding rod, the sliding rod penetrates through the sliding block, and the sliding block is connected to the rod wall of the sliding rod in a sliding mode.

Preferably, the outer ring wall of the support ring is fixedly connected with four limit blocks in an annular uniform equidistant mode, and the four limit blocks wrap the outer pipe wall of the fixed pipe.

Preferably, the lower end of the transformer body is symmetrically and fixedly connected with supporting pad feet.

Compared with the prior art, the utility model provides an oil-immersed power transformer possesses following beneficial effect:

this oil-immersed power transformer, through setting up cable fixed establishment, the bracing piece passes the supported hole, and the screens piece card is at the lower extreme of support ring, and fixed pipe and support ring are fixed as an organic whole to with the firm fixed of cable and sleeve pipe together, avoid the cable to break away from the sleeve pipe, ensure the normal stable work of transformer, when needs are with cable initiative from the sleeve pipe when detaching, open cable fixed establishment earlier, convenient carry out the partition with cable 3 and sleeve pipe 2.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses it is fixed as an organic whole with fixed pipe and support ring to with the firm fixed of cable and sleeve pipe together, avoid the cable to break away from the sleeve pipe, ensure the normal stable work of transformer, the convenient splits cable and sleeve pipe.

Drawings

Fig. 1 is a schematic structural diagram of an oil-immersed power transformer according to the present invention;

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

fig. 3 is an enlarged view of a portion B in fig. 2.

In the figure: 1. a transformer body; 2. a sleeve; 3. a cable; 4. a fixed tube; 5. a support ring; 6. a support bar; 7. a support hole; 8. a transmission groove; 9. a spring; 10. a bit block; 11. a magnet; 12. iron sheets; 13. a pull ring; 14. a slider; 15. a chute; 16. a slide bar; 17. a limiting block; 18. and supporting the foot pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, an oil-immersed power transformer includes a transformer body 1, a bushing 2 is connected to an upper end of the transformer body 1, a cable 3 is connected to the bushing 2, and the cable 3 is connected to the bushing 2 through a cable fixing mechanism;

the cable fixing mechanism comprises a fixing tube 4, the fixing tube 4 is fixedly sleeved on the outer side wall of the cable 3, a support ring 5 is fixedly sleeved on the outer tube wall of the sleeve 2, the fixing tube 4 is sleeved on the sleeve 2, the fixing tube 4 is arranged at the upper end of the support ring 5, a support rod 6 is symmetrically and fixedly connected with a lower end tube opening of the fixing tube 4, a support hole 7 is formed in the position, corresponding to the support rod 6, of the support ring 5, one end, far away from the fixing tube 4, of the support rod 6 penetrates through the support hole 7 and extends downwards, a transmission groove 8 is formed in the rod wall of the support rod 6, a spring 9 is fixedly connected with the bottom of the transmission groove 8, a clamping block 10 is fixedly connected with the other end of the spring 9, one end, far away from the spring 9, of the clamping block 10 penetrates through the groove opening of the transmission groove 8 and extends outwards, the clamping block 10, which is positioned outside the transmission groove 8, is arranged at the lower end of the support ring 5, a magnet 11 and an iron sheet 12 are arranged in the spring 9, the magnet 11 is fixedly connected at the bottom of the transmission groove 8, the iron sheet 12 is fixedly connected at one end of the clamping block 10 close to the spring 9, the support rod 6 passes through the support hole 7, the clamping block 10 is clamped at the lower end of the support ring 5 to fix the fixed tube 4 and the support ring 5 into a whole, so that the cable 3 and the sleeve 2 are firmly fixed together to avoid the cable 3 from being separated from the sleeve 2, and the normal and stable work of the transformer is ensured, when the cable 3 needs to be actively detached from the sleeve 2, the two clamping blocks 10 are firstly exerted with pressing force, the clamping blocks 10 are stressed to compress the spring 9 and move towards the transmission groove 8, so that the iron sheet 12 and the magnet 11 are connected together in a magnetic adsorption manner, the magnetic adsorption force between the iron sheet 12 and the magnet 11 is greater than the reset force of the spring 9, after the clamping block 10 is fixed in the transmission groove 8, the upward pulling force is exerted on the fixed tube 4, the fixed tube 4 drives the support rod 6 to be pulled out from the support, the cable fixing mechanism can be opened, and the cable 3 and the sleeve 2 are conveniently detached.

One end fixedly connected with pull ring 13 that spring 9 was kept away from to screens piece 10, and the parcel has anti-skidding cloth on the pull ring 13, can apply pulling force to screens piece 10 in the driving groove 8 through pull ring 13, drive iron sheet 12 synchronous motion behind the screens piece 10 atress, the pulling force is greater than the magnetic adsorption power between iron sheet 12 and magnet 11, make iron sheet 12 break away from with magnet 11 mutually, the restoring force that is compressed spring 9 this moment is greater than the magnetic adsorption power between iron sheet 12 and magnet 11, pop out driving groove 8 with screens piece 10 automation.

The clamping block 10 is close to the symmetrical fixedly connected with slider 14 on the lateral wall of spring 9 one end position, has seted up assorted spout 15 on the cell wall that driving groove 8 corresponds slider 14 position, and slider 14 sliding connection can drive slider 14 synchronous motion in spout 15 during the motion in the spout 15 during the motion for clamping block 10 moves more stably, prevents that clamping block 10 from being popped out clamping groove 8 by spring 9.

A sliding rod 16 is fixedly connected in the sliding groove 15, the sliding rod 16 penetrates through the sliding block 14, the sliding block 14 is connected to the rod wall of the sliding rod 16 in a sliding mode, and the sliding block 14 moves in the sliding groove 15 more stably through the sliding rod 16.

Be four stopper 17 of the even equidistance fixedly connected with of annular on the outer rampart of support ring 5, four stopper 17 parcel fixed pipe 4's outer pipe wall sets up, fastness when having improved fixed pipe 4 and support ring 5 and connecting.

The lower end of the transformer body 1 is symmetrically and fixedly connected with supporting pad feet 18, and the transformer body 1 is supported through the supporting pad feet 18.

In the utility model, the support rod 6 passes through the support hole 7, the clamping block 10 is clamped at the lower end of the support ring 5 to fix the fixing tube 4 and the support ring 5 into a whole, thereby firmly fixing the cable 3 and the sleeve 2 together, avoiding the cable 3 from being separated from the sleeve 2, ensuring the normal and stable work of the transformer, when the cable 3 needs to be actively detached from the sleeve 2, firstly exerting pressing force on the two clamping blocks 10, the clamping blocks 10 compress the spring 9 and move towards the transmission groove 8 after being stressed, so that the iron sheets 12 and the magnets 11 are connected together by magnetic adsorption, the magnetic adsorption force between the iron sheets 12 and the magnets 11 is larger than the reset force of the spring 9, after the clamping blocks 10 are fixed in the transmission groove 8, then exerting upward pulling force on the fixing tube 4, the fixing tube 4 drives the support rod 6 to be pulled out from the support hole 7 on the support ring 5, thus opening the cable fixing mechanism, the cable 3 and the sleeve 2 are conveniently disassembled.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. An oil-immersed power transformer comprises a transformer body (1), and is characterized in that the upper end of the transformer body (1) is connected with a sleeve (2), the sleeve (2) is connected with a cable (3), and the cable (3) is connected with the sleeve (2) through a cable fixing mechanism;

the cable fixing mechanism comprises a fixing pipe (4), the fixing pipe (4) is fixedly sleeved on the outer side wall of the cable (3), a support ring (5) is fixedly sleeved on the outer pipe wall of the sleeve (2), the fixing pipe (4) is sleeved on the sleeve (2), the fixing pipe (4) is arranged at the upper end of the support ring (5), the lower end pipe orifice of the fixing pipe (4) is symmetrically and fixedly connected with a support rod (6), a support hole (7) is formed in the position, corresponding to the support rod (6), of the support ring (5), one end, far away from the fixing pipe (4), of the support rod (6) penetrates through the support hole (7) and extends downwards, a transmission groove (8) is formed in the rod wall of the support rod (6), a spring (9) is fixedly connected to the groove bottom of the transmission groove (8), and a clamping block (10) is fixedly connected to the other end of the spring (9), the notch and the outside extension of transmission groove (8) are passed to the one end that spring (9) were kept away from in screens piece (10), and are located the outer screens piece (10) of transmission groove (8) set up the lower extreme at support ring (5), be equipped with magnet (11) and iron sheet (12) in spring (9), magnet (11) fixed connection is at the tank bottom of transmission groove (8), iron sheet (12) fixed connection is in the one end that screens piece (10) are close to spring (9).

2. Oil-filled power transformer according to claim 1, characterized in that a pull ring (13) is fixedly connected to one end of the clamping block (10) away from the spring (9), and the pull ring (13) is wrapped with an anti-slip cloth.

3. The oil-immersed power transformer according to claim 1, wherein the side wall of the clamping block (10) near one end of the spring (9) is symmetrically and fixedly connected with a sliding block (14), the groove wall of the transmission groove (8) corresponding to the sliding block (14) is provided with a matched sliding groove (15), and the sliding block (14) is slidably connected in the corresponding sliding groove (15).

4. Oil-filled power transformer according to claim 3, characterized in that a sliding rod (16) is fixedly connected in the sliding groove (15), the sliding rod (16) is arranged through the sliding block (14), and the sliding block (14) is slidably connected to a rod wall of the sliding rod (16).

5. The oil-immersed power transformer according to claim 1, characterized in that four limit blocks (17) are fixedly connected to the outer annular wall of the support ring (5) in an annular shape, uniformly and equidistantly, and the four limit blocks (17) are wrapped around the outer wall of the fixed pipe (4).

6. Oil filled power transformer according to claim 1, characterized in that the lower end of the transformer body (1) is symmetrically and fixedly connected with supporting feet (18).

Images