CN202127325U

CN202127325U - Wiring box of low-voltage high-power motor for ship

Info

Publication number: CN202127325U
Application number: CN2011201465192U
Authority: CN
Inventors: 张立心; 巩方彬
Original assignee: DEZHOU HENGLI ELECTRICAL MACHINERY Co Ltd
Current assignee: DEZHOU HENGLI ELECTRICAL MACHINERY Co Ltd
Priority date: 2011-05-02
Filing date: 2011-05-02
Publication date: 2012-01-25
Anticipated expiration: 2021-05-02

Abstract

The utility model relates to a wiring box of a low-voltage high-power motor for a ship, belonging to the field of the manufacturing of a motor for a ship. The wiring box comprises a square wiring box base, three groups of wiring units, a cover plate, stuffing boxes, sealing gaskets, a wiring box cover and grounding components; the wiring box base is made by welding steel plates; grounding towers and towers for the installation of wiring plates are welded in the wiring box base, and unthreaded holes for the assembly of the motor and threaded holes for the installation of other parts of the wiring box are processed in the wiring box base; each group of wiring units comprises a wiring plate, two sets of wiring components, two M6 wiring bolts and a copper connection sheet, wherein each set of wiring components is formed by assembling four or six sets of M12 copper wiring bolts, copper nuts and gaskets on one wiring row; and the cover plate is assembled on the wiring box base after the stuffing boxes are assembled on the cover plate. The wiring box is characterized in that the three groups of towers for the installation of the wiring plates are hierarchically distributed in the wiring box base by gradient, each group of wiring units can be assembled like stacking building blocks according to the need, and the specification and the number of the stuffing boxes can be adjusted according to the need of the user.

Description

The terminal box of marine low-pressure high power motor

Technical field

The utility model relates to the manufacturing field of marine electric machine, is specially adapted to the manufacturing and the assembling of the special-purpose YCTJ series low voltage high-power threephase asynchronous motor terminal box of sideways-acting propeller peculiar to vessel.

Background technology

Our company produces the special-purpose YCTJ series low voltage high-power threephase asynchronous motor of sideways-acting propeller peculiar to vessel, and (380V, 250～1000KW) have had for many years, although motor performance is good, firmly get user's trust.But the low-pressure high-power electric moter voltage is low, electric current is big, and cable is thicker, and the marine electric machine space is limited, and terminal box can not be too big, and aboard ship motor is difficult to wiring.This difficult problem perplexs us for many years always, has just solved this difficult problem through improving:

1) all-in-one-piece terminal block (seeing Figure 12), the insulating material consumption is big.After the cable end of motor lead-out wire and the connection bolt assembling firmly, connection bolt passes from the inboard of terminal block, terminal block is fixed on the junction box seat again.Motor has 12 25～95mm ²Lead-out wire because the junction box seat bottom space is less, the reaction force of lead-out wire is very big, the assembler is very big with the difficulty that terminal block is fixed on the junction box seat, and the cable joint of inner lead might become flexible fixedly the time at terminal block.

2) all-in-one-piece terminal block, connection bolt is the plane figure (see figure 7), and user often reflection is easier to wiring near the ratio of stuffing box one side, and inboard once arranging very difficult wiring; Connection bolt is thicker, does not have suitable cable end supporting with it.The quantity of connection bolt only has 12, when the user need adjust the quantity of connection bolt, just is difficult to satisfy user's requirement.

3) versatility of connection bolt (see figure 9) is relatively poor, the about 8.5kg of total weight of the copper connection bolt in every terminal box, copper nut, copper washer, copper brace, and copper consumption is more.

4) because junction box seat adopts the monolithic construction (see figure 7), the quantity of stuffing box installing hole is difficult to the adjustment that needs by the user.

To above weak point, we constantly optimize and are perfect, have developed a kind of novel terminal box, have solved problem, have reduced cost, have improved production efficiency, have strengthened user's trust.

Summary of the invention

For solving the deficiency of original terminal box in structure and fit on existence, the utility model provides the terminal box that a kind of structure is flexible, easy to operate, practice thrift cost.

The utility model solves the technical scheme that its technical problem adopted:

Novel terminal box is made up of square junction box seat, 3 set of connections unit, cover plate, stuffing box, seal washer, connector cover, grounding assembly and standard component etc.; Junction box seat is welded by steel plate, has welded tower of ground connection tower and installation connection plate in the junction box seat, and is processed with the hole with unthreaded hole and installation connection box other parts of motor assembling; Every set of connections unit by a terminal block, two cover connector assemblies and (or) 2 M6 connection bolts, a copper brace form, every cover connector assembly is made up of line bank assembling 6 covers (or 4 overlap) M12 copper connection bolt, copper nut, packing ring; Stuffing box is assembled to earlier on the cover plate, and cover plate refills and is fitted on the junction box seat.

The characteristic of new arrangement box is: the tower sublayering of 3 groups of installation connection plates has being distributed in the junction box seat of gradient, and cordwood assembling as required can be realized in every set of connections unit, and the specification of stuffing box and quantity are convenient to need adjustment by the user.

The beneficial effect of the utility model is:

1) split type terminal block, the insulating material consumption is little.

2) the tower sublayering of 3 groups of installation connection plates has being distributed in the junction box seat of gradient, is convenient to the installation of terminal block, is convenient to assembler's wiring and terminal block.

3) cordwood assembling as required can be realized in 3 set of connections unit, and the assembler can reduce the difficulty of wiring according to the hobby adjustment assembly sequency of oneself, has improved the efficient and the quality of wiring, has avoided the loosening problem of cable end.

4) connection bolt adopts (GB/T5783-2000) copper bolt M12 * 20 and M12 * 40, and versatility is better, and its quantity can need adjustment in time by the user.

5) the about 6.5kg of total weight of copper connection bolt, copper line bank, copper nut, copper washer and the copper brace in every terminal box, copper consumption has been practiced thrift about 2kg.

6) cover plate, stuffing box and junction box seat split assembling can in time be satisfied requirement and the change of user to stuffing box quantity through changing the mode of cover plate.

Description of drawings

The utility model is further specified with implementing below in conjunction with accompanying drawing.

Fig. 1 is the wiring schematic diagram of the utility model terminal box.

Fig. 2～4 are that the installation diagram, A-A profile, C of the utility model is to view successively.

Fig. 5 is the part drawing of the part preface 18-terminal block of the utility model.

Fig. 6～8 are front view, vertical view, the end view of the part preface 6-line bank of the utility model successively.

Fig. 9～11 are front view, vertical view, the end view after the original terminal box assembling successively.

Figure 12 is the part drawing of the part-terminal block of original terminal box.

Figure 13～15 are part-connection bolt front view, vertical view, the end view of original terminal box successively.

Parts title among the figure:

The 1-junction box seat; 2-bolt M8 * 45; 3-plain washer 8; 4-bullet packing ring 8; 5-nut M8; The 6-line bank; The 7-connector cover; 8-bolt M10 * 20; The copper bolt M12 of 9-(GB/T5783-2000) * 20; 10-copper nut M12; 11-copper washer 12; 12-bullet packing ring 12; The copper bolt M12 of 13-(GB/T5783-2000) * 40; The copper bolt M6 of 14-(GB/T5783-2000) * 45; 15-copper nut M6; 16-copper washer 6; 17-bullet packing ring 6; The 18-terminal block; The 19-connector name plate; 20-rivet 2 * 6; The copper bolt M110 of 21-(GB/T5783-2000) * 20; 22-copper washer 10; 23-bullet packing ring 10; 24-ground connection board; 25-bolt M8 * 25; 26-sealing gasket (cover plate); 27-sealing gasket (connector cover); The 28-cover plate; 29-stuffing box TJ50 (6); 30-stuffing box TJ19 (2); The 31-brace.

Wherein: preface 6 line banks have 6; Preface 18 terminal blocks have 3; Preface 9 has 12 (or 18 install according to user's request), is used for assembler's wiring and brace is installed; Preface 13 has 12 (or 18 install according to user's request), the bolt that uses as terminal block; Preface 14 connection bolts have 3 groups, are used to install condensation heating tape R ₁, R ₂Or temperature element f ₁, f ₂, can install according to user's request.

Embodiment

1, the implementation process of the utility model junction box seat (preface 1):

1.1 blanking welding: press the part drawing blanking of junction box seat, tower of welded case → 3 groups of installation connection plates of welding → welding ground connection tower → derusting by sandblasting → spray antirust paint.Attention: the tower sublayering of installation connection plate has gradient, meets drawing requirement.

1.2 processing: car housing upper and lower end face → mill installation seam → brills of cover plate: the assembling unthreaded hole of terminal block, ground connection board, line lid, cover plate, housing and hole → deburring, for use.

2, the implementation process of the utility model line bank (preface 6):

2.1 press Fig. 6～8, copper coin blanking, cold moudling;

2.2 press Fig. 6～8, the assembling unthreaded hole → deburring → nickel plating of processing line bank, for use.

3, the implementation process of the utility model connector cover (preface 7):

3.1 steel plate cutting, cold moudling;

3.2 the installation base plate → derusting by sandblasting → spray antirust paint of welding connector name plate.

3.3 the assembling unthreaded hole → processing rivet hole → riveted joint connector name plate (preface 19) of processing connector cover is for use.

4, the assembling implementation process of the utility model terminal box:

4.1 motor stator is press-fit into place, and extracts the motor lead-out wire out; Prepare the parts and the standard component of terminal box.

4.2 junction box seat is installed on the motor stator length of cutting lead-out wire, crimping cable head.Attention: the length of lead-out wire is corresponding with the position of terminal block.

4.3 link plate, line bank are pressed customer requirements installation connection bolt, and cable end, copper brace are fixed on the preface 9, see Fig. 1～3.Explain: every set of connections unit by a terminal block, two cover connector assemblies and (or) 2 M6 connection bolts, a copper brace form, every cover connector assembly is made up of line bank assembling 6 covers (or 4 overlap) M12 copper connection bolt, copper nut, packing ring.

4.4 by user's needs, select cover plate (preface 28) and stuffing box (preface 29～30), stuffing box is assembled to earlier on the cover plate, sealing gasket (preface 26) and cover plate is assembled on the junction box seat again, sees Fig. 3～4.

4.5 after motor general assembly completion and the pass the test, fitting tight pad (preface 27) and connector cover (preface 7) are seen Fig. 2～3.

4.6 motor is paid the user, the user with power supply lead wire through stuffing box be assembled to preface 13 with (or) on the preface 14, see Fig. 1～3.5, conclusion:

In recent years, there was weak point in we to the structure and the fit on of original terminal box, constantly optimized and perfect, had developed the terminal box of the utility model, had solved problem, had reduced cost, had improved production efficiency, had strengthened user's trust.

Claims

1. the terminal box of marine low-pressure high power motor; Form by square junction box seat, 3 set of connections unit, cover plate, stuffing box, seal washer, connector cover, grounding assembly; Junction box seat is welded by steel plate; Welded the lug of ground connection lug and installation connection plate in the junction box seat, and be processed with the silk hole with unthreaded hole and other parts of installation connection box of motor assembling, every set of connections unit is made up of a terminal block, two cover connector assemblies and 2 M6 connection bolts, a copper brace; Every cover connector assembly is made up of line bank assembling 6 covers or 4 cover M12 copper connection bolts, copper nut, packing ring; Stuffing box is assembled to earlier on the cover plate, and cover plate refills and is fitted on the junction box seat, it is characterized in that: the lug of 3 groups of installation connection plates has being distributed in the junction box seat of gradient by different level.