CN203494275U

CN203494275U - Online oil filter integrated machine for on-load tap switch

Info

Publication number: CN203494275U
Application number: CN201320234163.7U
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: 2014-03-26
Anticipated expiration: 2023-05-03

Abstract

The utility model discloses an online oil filter integrated machine for an on-load tap switch. The online oil filter integrated machine comprises a transmission mechanism, a switching mechanism, an on-load tap switch and an online oil filter device, wherein the online oil filter device is arranged on an oil way integrated board through an oil pump motor and a filter element; the oil way integrated board is fixed on the bottom plate in a box body; oil pipes of an oil pump and the filter element are arranged in the oil way integrated board; oil pipe inlets and oil pipe outlets of the oil pump and the filter element which are respectively communicated with and correspond to the oil pipes of the oil pump and the filter element are formed in the surface of the oil way integrated board; the oil pipe inlets and the oil pipe outlets of the oil pump and the filter element are respectively communicated with the corresponding oil inlets and oil outlets on the oil pump and the filter element. Therefore, the oil pipe inlets and the oil pipe outlets are respectively in surface-to-surface and hole-to-hole connection with the bottom surfaces of the oil pump and the filter element, namely the oil inlets and the oil outlets in the filter element and the oil pump are respectively in close fitting with the oil inlets and the oil outlets on the oil way integrated board; the sealing performance is high; a pipeline connector does not exist; the phenomenon of pipeline leakage is avoided; the online oil filter integrated machine is compact in structure and small in size; the production cost is greatly reduced; the service life is prolonged; the use safety is guaranteed by arranging a safety protection valve at the oil inlet of the oil pump.

Description

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

Technical field

The utility model relates to and a kind of on-line oil filter being directly installed in load ratio bridging switch casing, disposablely connects 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 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 shunting switch casing, though filter core is convenient to install, transposing, but also there are some defects in it, as large in volume, fragile, profile is not attractive in appearance, and filter core is to be connected with the oil pump in casing with pipe joint by pipeline, therefore also exist the phenomenon of Leak in Oil Pipe and manufacturing cost high.

Summary of the invention

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

The technical scheme in the invention for solving the above technical problem is: on-load tap-changer on-line oil filtering integrated machine, comprises and be arranged on case lid, switch motor and worm screw in casing, the transmission mechanism that worm gear forms, by wink rotating shaft with pull out slotware, the second worm gear, pull bar and extension spring connect and coordinate the switching mechanism forming, insulating cylinder with sheave, cylinder is provided with rotating shaft at the end, moving contact assembly on moving contact frame coordinates with static contact, and moving contact frame is connected to the load ratio bridging switch forming in rotating shaft, also comprise the on-line oil filter being arranged in 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 arranged on oil circuit circuit board, and oil circuit circuit board is fixed on the base plate in casing, in described oil circuit circuit board, have oil pump oil pipe, filter core oil pipe, oil circuit circuit board surface has and oil pump, filter core oil pipe communicates respectively and corresponding oil pump, entering of filter core, the fuel-displaced mouth of pipe, the oil pump on described oil circuit circuit board, filter core enters, the fuel-displaced mouth of pipe respectively with oil pump, oil pump corresponding on filter core enters, oil-out, filter core enters, oil-out is connected.

Compared with prior art, the utility model has the advantage of: loaded switch and online oil filtration two parts are respectively for absolute construction can work alone, cause is existing by filter core first or filter core first, second is all arranged in the casing of load ratio bridging switch, and use the oil pipe on an oil circuit circuit board and enter, the fuel-displaced mouth of pipe respectively with oil pump, filter core first, the bottom surface of second, face-to-face, hole connects hole, even filter core, entering on oil pump, oil-out respectively with oil circuit circuit board on enter, the corresponding close installation of the fuel-displaced mouth of pipe, good airproof performance not only, also because there is not pipeline Seepage without pipe joint, its compact conformation, reduced part, saved material, therefore volume reduces greatly, thereby greatly reduce production costs, also extended the service life of all-in-one, import department at oil pump is also provided with safety protective valve in addition, when the suffered oil pressure of filter core is too high, can open protective valve earial drainage, the use safety of protection all-in-one.

Accompanying drawing explanation

Fig. 1, structural representation of the present utility model.

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

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

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

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

The specific embodiment

Below in conjunction with accompanying drawing, embodiment of the present utility model is 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 cylinder end 1 use rivet, sealing ring, the uniform fixedly static contact 5 of insulating cylinder 2 both side surface, moving contact assembly 6, resistance wire tray 4 is connected on moving contact frame 3, with screw is uniform, be fixed in rotating shaft 7, rotating shaft 7 upper ends are connected with bearing and sheave 11, the upper end of rotating shaft 7 is also 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 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 is also installed in the middle of 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 the 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 arranged on to pull out in slotware 21 and is connected with the second worm gear 35, pull bar 34.

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

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.

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

oil pipe mouth

24,25, as shown in Figure 2.In like manner on the bottom surface of filter core second 19, have into and out of hydraulic fluid port 30 ', corresponding into and out of oil pipe mouth 30,31 on 31 ' (figure do not draw) and oil circuit circuit board.

In oil circuit circuit board 13 centre positions, have do not communicate, not at two oil pump oil pipes 29 and the filter core oil pipe 32 of same aspect, on one surface of oil circuit circuit board 13, also have respectively 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 with oil pump oil pipe, the flow-limiting valve 26 consisting of is installed in passage and communicates with oil pump oil-in 27 spring 26-1 and the stifled 26-2 of plug.On oil pump oil pipe 29 midfeathers, 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, and oil pump oil-out 28 is connected with pump inlet pipe 23, the oil-feed mouth of pipe 30 that has filter core second 19 on filter core oil pipe 32, as shown in Figure 4.

During use, difference starting switch motor 15 and Oil pump electrical machinery 16, after switch electric machine rotation, through two-stage worm screw 36, after the second worm gear 35 deceleration transmission, pin on the second worm gear 35 is encountered and is driven pull bar 34 to rotate, the extension spring 33 that makes to link together with pull bar 34 energy storage that progressively stretches, when extension spring passes through " dead point " position, extension spring 33 sudden outbursts, by wink rotating shaft 22, drive and pull out slotware 21 rotations, stirring sheave 11 rotates an indexing trough rapidly and locks, by sheave 11, drive again rotating shaft 7 to rotate an angle, make moving contact assembly 6 and organize static contact 5 separately and coordinate, realize the switching of switch, complete the normal operation of load ratio bridging switch, as shown in Figure 5.

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

Claims

1. an on-load tap-changer on-line oil filtering integrated machine, comprises and is arranged on case lid (17), switch motor (15) and worm screw in casing (18), the transmission mechanism that worm gear forms, by wink rotating shaft (22) with pull out slotware (21), the second worm gear (35), pull bar (34) and extension spring (33) connect and coordinate the switching mechanism forming, insulating cylinder (2) with sheave (11), cylinder is provided with rotating shaft (7) in the end (1), moving contact assembly (6) on moving contact frame (3) coordinates with static contact (5), and moving contact frame is connected to the load ratio bridging switch forming in rotating shaft, characterized by further comprising the on-line oil filter being arranged in 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 arranged on oil circuit circuit board (13), and the base plate (10) that oil circuit circuit board (13) is fixed in casing is upper, has oil pump oil pipe (29) in described oil circuit circuit board (13), filter core oil pipe (32), oil circuit circuit board surface has and oil pump and filter core oil pipe (29, 32) communicate respectively and corresponding oil pump enter, the fuel-displaced mouth of pipe (27, 28), the oil pump on described oil circuit circuit board enters, the fuel-displaced mouth of pipe (27, 28) respectively with oil pump (12), corresponding pump inlet pipe (23) on filter core, entering on 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 circuit board (13) is fixed on the base plate (10) in 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 circuit board (13) centre position do not communicate, not at two oil pump oil pipes (29) and the filter core oil pipe (32) of same aspect, on a surface of oil circuit circuit board (13), have respectively vertical its surperficial filter core first (14) into and out of oil pipe mouth (24,25), filter core second (19) is into and out of oil pipe mouth (30,31) and oil pump (12) into and out of oil pipe mouth (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 with oil pump oil pipe on the sidewall of described oil pump oil pipe (29), the flow-limiting valve (26) consisting of spring (26-1) and plug stifled (26-2) be installed in passage and communicated with pump inlet pipe mouth (27), on oil pump oil pipe (29) midfeather, also having an oil pump outlet line mouth (28).

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 '), in described filter core second (19), have into and out of hydraulic fluid port (30 ', 31 ') and into and out of oil pipe mouth (30,31), be communicated with into and out of oil pipe mouth (24,25), filter core second with the filter core first on oil circuit circuit board respectively.