CN103223272A

CN103223272A - On-load tap-changer on-line oil filter all-in-one machine

Info

Publication number: CN103223272A
Application number: CN201310160167XA
Authority: CN
Inventors: 史伟国; 卢雷; 蔡安平
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-03
Filing date: 2013-05-03
Publication date: 2013-07-31
Anticipated expiration: 2033-05-03
Also published as: CN103223272B

Abstract

Disclosed is an on-load tap-changer on-line oil filter all-in-one machine. An oil pump motor and a filter core are installed on an oil-way integrated board which is fixed on a base plate inside a case. An oil pump and filter core oil pipes are arranged inside the case. An oil pump and filter core oil inlet and outlet pipe orifices which respectively communicate with and are corresponding to the oil pump and the filter core oil pipes are installed on the surface of the case. The oil pump and the filter core oil inlet and outlet pipe orifices on the oil-way integrated board respectively communicate with corresponding oil pump and filter core inlet and outlet on the oil pump and filter cores. The filter cores are mounted inside the case of an on-load tap-changer and are respectively connected with the oil pump and filter core bottom surface face to face and hole to hole by the utilization of oil pipes and the inlet and outlet pipe orifices on the oil-way integrated board. That is to say, the filter cores and the oil inlet and outlet on the oil pump are tightly arranged with the oil inlet and outlet pipe orifices on the oil-way integrated board respectively. The on-load tap-changer on-line oil filter all-in-one machine has advantages of good tightness, compact structure and small size. As there is no pipe joint, leakage phenomenon of pipelines will not happen. Production cost is greatly reduced. Service life is prolonged. The inlet of the oil pump is provided with a protective valve so as to guarantee use security.

Description

On-load tap-changer on-line oil filtering integrated machine

Technical field

The present invention relates to a kind of on-line oil filter is directly installed in the load ratio bridging switch casing, disposablely connect into whole on-load tap-changer on-line oil filtering integrated machine.

Background technology

China Patent No. 200710069308.1 " on-load tap-changer on-line oil filtering integrated machine ", though also providing a kind of is directly installed on on-line oil filter in the switch casing, settle at one go and connect into whole all-in-one, but the filter core on this all-in-one is mounted in outside the shunting switch casing, though filter core is convenient to install, transposing, but also there are some defectives in it, big, fragile as volume, profile is not attractive in appearance, and filter core is to be connected with oil pump in the casing by pipeline and pipe joint, therefore also has the phenomenon and the manufacturing cost height of oil pipe seepage.

Summary of the invention

Technical problem to be solved by this invention is: a kind of on-load tap-changer on-line oil filtering integrated machine is provided, on-line oil filter is installed in integrant all-in-one in the load ratio bridging switch fully, and compact conformation, volume is little reduces production costs again, has also prolonged the service life of all-in-one.

The present invention addresses the above problem the technical scheme that is adopted: on-load tap-changer on-line oil filtering integrated machine, comprise and be installed in case lid, switch motor and worm screw in the casing, the transmission mechanism that worm gear constitutes, by the wink rotating shaft with pull out slotware, second worm gear, pull bar and extension spring connect the switching mechanism that cooperates formation with sheave, insulating cylinder, tube is equipped with rotating shaft at the end, moving contact assembly on the moving contact frame cooperates with static contact, and moving contact frame is connected the load ratio bridging switch that constitutes in the rotating shaft, also comprise the on-line oil filter that is installed in the casing, described on-line oil filter is connected with oil pump by Oil pump electrical machinery, Oil pump electrical machinery and more than one filter core are installed on the oil circuit circuit board, and the oil circuit circuit board is fixed on the interior base plate of casing, in the described oil circuit circuit board oil pump oil pipe is arranged, the filter core oil pipe, oil circuit circuit board surface has and oil pump, the filter core oil pipe communicates respectively and corresponding oil pump, advancing of filter core, the fuel-displaced mouth of pipe, the oil pump on the described oil circuit circuit board, filter core advances, the fuel-displaced mouth of pipe respectively with oil pump, corresponding oil pump advances on the filter core, oil-out, filter core advances, oil-out is connected.

Compared with prior art; the invention has the advantages that: loaded switch and online oil filtration two parts respectively can work alone for absolute construction; cause is existing with filter core first or filter core first; second all is installed in the casing of load ratio bridging switch; and use on the oil circuit circuit board oil pipe and advance; the fuel-displaced mouth of pipe respectively with oil pump; the filter core first; the bottom surface of second; face-to-face; the hole connects the hole; even filter core; advancing on the oil pump; oil-out respectively with the oil circuit circuit board on advance; the corresponding close installation of the fuel-displaced mouth of pipe; good airproof performance not only; because of no pipe joint pipeline seepage phenomenon can not take place also; its compact conformation; reduced part; saved material; therefore volume reduces greatly, thereby reduces production costs greatly, has also prolonged the service life of all-in-one; import department at oil pump also is equipped with safety protective valve in addition; when the suffered oil pressure of filter core is too high, can open the protective valve earial drainage, protect the safe in utilization of all-in-one.

Description of drawings

Fig. 1, structural representation of the present invention.

Fig. 2, filter core first and oil circuit circuit board syndeton schematic diagram.

The A of Fig. 3, Fig. 1-A cutaway view.

The B of Fig. 4, Fig. 1-B cutaway view.

The C of Fig. 5, Fig. 1-C cutaway view.

The specific embodiment

Below in conjunction with accompanying drawing embodiments of the invention are further described.

The upper end of insulating cylinder 2 and ring flange 8 lower ends and insulating cylinder lower end are fixed into one with the tube end 1 usefulness rivet, sealing ring, the uniform fixedly static contact 5 of insulating cylinder 2 both side surface, moving contact assembly 6, resistance wire dish 4 is connected on the moving contact frame 3, be fixed in the rotating shaft 7 with screw is uniform, rotating shaft 7 upper ends are connected with bearing and sheave 11, the upper end of rotating shaft 7 also is connected with the Moving plate of indicating dial 9, at the bottom of the lower end of rotating shaft 7 is fixed on tin on 1 the centre position.

The casing 18 and the base plate 10 that are connected with case lid 17 are screwed on ring flange 8, and bearing also is installed in the middle of the base plate 10, and its upper surface is installed sheave 11, and lower surface is fixed on the quiet dish of indicating dial 9.

The worm screw 36 of switch motor 15 axle heads and first worm gear engagement (figure does not draw), wink rotating shaft 22 is connected with extension spring 33 by pull bar 34, and wink rotating shaft 22 is installed in to pull out in the slotware 21 and is connected with second worm gear 35, pull bar 34.

Be fixed with switch motor 15 in casing 18 1 sides, the upper and lower surperficial correspondence position of the oil circuit circuit board 13 of a relative side is screwed Oil pump electrical machinery 16 and oil pump 12 respectively, oil circuit circuit board 13 is fixed on the base plate 10 in the casing 18, as shown in Figure 1 by the column on the lower surface 20.

In the pump inlet pipe 23 insertion insulating cylinders 2 of oil pump 12 lower ends, 14,19 or filter cores of filter core first, second and Oil pump electrical machinery 16 are screwed respectively on oil circuit circuit board 13, as shown in Figure 3.

Have on the bottom surface of filter core first 14 into and out of hydraulic fluid port 24 ', 25 ', respectively with the oil circuit circuit board on corresponding into and out of

oil pipe mouth

24,25, as shown in Figure 2.In like manner have on the bottom surface of filter core second 19 into and out of hydraulic fluid port 30 ', 31 ' (figure draw) with the oil circuit circuit board on corresponding into and out of

oil pipe mouth

30,31.

Have in oil circuit circuit board 13 centre positions do not communicate, not at two oil pump oil pipes 29 and filter core oil pipe 32 with aspect, also have respectively on one surface of oil circuit circuit board 13 vertical its surperficial filter core first 14 into and out of

oil pipe mouth

24,25, filter core second 19 into and out of

oil pipe mouth

30,31 and oil pump 12 into and out of

hydraulic fluid port

27,28.

On the sidewall of oil pump oil pipe 29, open a passage vertical, the flow-limiting valve 26 that is made of spring 26-1 and the stifled 26-2 of plug is installed in the passage and is communicated with oil pump oil-in 27 with the oil pump oil pipe.Also have the oil-feed mouth of pipe 24 of the filter core first 14 on an oil pump oil-out 28 and oil pump oil pipe one termination to be connected on oil pump oil pipe 29 midfeathers, and oil pump oil-out 28 is connected with pump inlet pipe 23, the oil-feed mouth of pipe 30 that filter core second 19 is arranged on the filter core oil pipe 32, as shown in Figure 4.

During use, difference starting switch motor 15 and Oil pump electrical machinery 16, after the switch motor rotates, through two-stage worm screw 36, after second worm gear, 35 deceleration transmission, pin on second worm gear 35 is run into and is driven pull bar 34 and rotates, make the extension spring 33 that links together with pull bar 34 energy storage that progressively stretches, when extension spring passed through " dead point " position, extension spring 33 discharged suddenly, was driven by wink rotating shaft 22 and pulled out slotware 21 rotations, stirring sheave 11 rotates indexing troughs rapidly and locks, drive rotating shaft 7 again by sheave 11 and rotate an angle, make moving contact assembly 6 and organize static contact 5 separately and cooperate the switching of realization switch, finish the normal operation of load ratio bridging switch, as shown in Figure 5.

Driving oil pump 12 by Oil pump electrical machinery 16 simultaneously rotates, suck by pump inlet pipe 23 through insulating oil the transposing of insulating cylinder 2 domestic demands, by oil pump oil-in 27, behind the flow-limiting valve 26 again through oil pump oil-out 28, enter the filter core first, second 14, filter core oil-in 24 on 19 ', 30 ' enter the filter core first, after second is filtered, the insulating oil of cleaning is by the filter core first, oil-out 25 on the second ', 31 ' discharge, the fuel-displaced mouth of pipe 25 on the oil circuit circuit board, 31 are discharged in the casing 18, flow into again in the insulating cylinder 2 for using, therefore can be under the situation of the normal operation of voltage transformer system, impurity such as free carbon in effective removal on-load tap changer insulating oil and metal particle, improve the load ratio bridging switch reliability of operation, security and service life, thereby the safe operation of assurance transformer.

Claims

1. on-load tap-changer on-line oil filtering integrated machine, comprise and be installed in case lid (17), switch motor (15) and worm screw in the casing (18), the transmission mechanism that worm gear constitutes, by wink rotating shaft (22) with pull out slotware (21), second worm gear (35), pull bar (34) and extension spring (33) connect the switching mechanism that cooperates formation with sheave (11), insulating cylinder (2), tube is equipped with rotating shaft (7) in the end (1), moving contact assembly (6) on the moving contact frame (3) cooperates with static contact (5), and moving contact frame is connected the load ratio bridging switch that constitutes in the rotating shaft, it is characterized in that also comprising the on-line oil filter that is installed in the casing (18), described on-line oil filter is connected with oil pump (12) by Oil pump electrical machinery (16), Oil pump electrical machinery and more than one filter core are installed on the oil circuit circuit board (13), and oil circuit circuit board (13) is fixed on the interior base plate (10) of casing, oil pump oil pipe (29) is arranged in the described oil circuit circuit board (13), filter core oil pipe (32), oil circuit circuit board surface has and oil pump, filter core oil pipe (29,32) communicate respectively and corresponding oil pump, advancing of filter core, the fuel-displaced mouth of pipe (27,28), the oil pump on the described oil circuit circuit board, filter core advances, the fuel-displaced mouth of pipe (27,28) respectively with oil pump (12), corresponding pump inlet pipe (23) on the filter core, advancing on the filter core, oil-out is connected.

2. on-load tap-changer on-line oil filtering integrated machine according to claim 1 is characterized in that described oil circuit integrated package (13) is fixed on the interior base plate (10) of casing (18) by the column (20) of lower surface.

3. on-load tap-changer on-line oil filtering integrated machine according to claim 1, it is characterized in that described filter core is filter core first (14), filter core second (19), described Oil pump electrical machinery (16) and filter core first, second (14,19) are screwed respectively on oil circuit circuit board (13).

4. on-load tap-changer on-line oil filtering integrated machine according to claim 1, it is characterized in that having in described oil circuit integrated package (13) centre position do not communicate, not at two oil pump oil pipes (29) and filter core oil pipe (32) with aspect, vertical its surperficial filter core first (14) is arranged into and out of oil pipe mouth (24,25) respectively on a surface of oil circuit circuit board (13), filter core second (19) into and out of oil pipe mouth (30,31) and oil pump (12) into and out of hydraulic fluid port (27,28).

5. on-load tap-changer on-line oil filtering integrated machine according to claim 4, it is characterized in that opening a passage vertical on the sidewall of described oil pump oil pipe (29) with the oil pump oil pipe, installation communicates by the flow-limiting valve (26) of spring (26-1) and plug stifled (26-2) formation and with oil pump oil-in (27) in the passage, also has an oil pump oil-out (28) on oil pump oil pipe (29) midfeather.

6. on-load tap-changer on-line oil filtering integrated machine according to claim 3, it is characterized in that having on the bottom surface of described filter core first (14) two into and out of hydraulic fluid port (24 ', 25 '), have on the described filter core second (19) into and out of hydraulic fluid port (30 ', 31 ') respectively with the oil circuit circuit board on filter core first, second be communicated with into and out of oil pipe mouth (24,25), (30,31).