The invention relates to a plug connection for connecting a cable in underground mining. Flange axially connected with forklift part, which is fixed on the socket part, by a nut, and is sealed against ingress of moisture and/or dirt by using at least one sealing element. Technical result - providing a simple method of installation maximum sealing and securing with a low production cost standard elements for a series of plug connectors that allow both axial supply cable and radial supply cable. For this male threads on the socket part and the corresponding inner thread cap nut made as transahara thread, and/or hole for cable entry from the rear fork end is provided with a crown portion, at least one radial receiving hole for the cable. 9 C.p. f-crystals, 4 Il.The invention relates to a plug connection for connecting a cable in underground mining, with the halftone part and axially sochlenenii with her, having on the back side of the th on the thread of the socket part, located rotatably on the fork part of the Union nut and sealed from moisture and/or dirt by using at least one sealing element.Plug connection of this type is used in underground mining, in particular for an electrical cable connections between the individual units of electrohydraulic systems of supports. To protect the electrical contacts in the plug connection from the ingress of dust and, in particular, from moisture in the harsh conditions of work under the ground and to prevent interruptions in the production process has at least one sealing element, which in the assembled condition of forklift parts and socket parts closes inside the contacts from the environment. In related to this type of product document DE 20004566 U1 in grooves in the closed circuit on the guide trunnion fork part and the distance from the back of the stopper flange located with the possibility of free rotation and axially fixed nut installed two made in the form of o-ring sealing element, which in assembled form adjacent to the inner is ofilei details produced by molding under pressure from the rack elastic mass, designed to prevent moisture penetration from the rear of the forklift parts. Cable conductor is fixed in the fork part of the electrical connector, which interacts with a corresponding mating part in the socket part. Using the centering holes in the guide trunnion fork part and the centering pin in the socket part is provided by the interconnection forklift parts with the female part or the articulation of the corresponding electrical connectors in only one orientation. Thus, by means of a plug connection is provided by creating only provided for electrical connection. The transmission cable in the hole for cable entry at the fork part is axially relative to the guide axle forklift parts. For radial supply cable up to the present time using a different design of the electrical connector.The objective of the invention is constructive design of the socket parts and forklift part, to a simple method of installation they provide maximum sealing against ingress of moisture and dirt, and at low proizvodstvennykh as axial supply cable, and radial supply cable.This task is solved by the features of the invention, described in paragraph 1 of the claims. According to the invention, the outer thread on the socket part and the corresponding internal thread of the Union nut is executed as multiple threads and/or hole for cable entry from the rear fork end is provided with a crown portion with one, at least, radial receiving hole for the cable. Due to the multiple threads, by means of which the cap nut is fixed and screwed on the flange, the electrical connector can be assembled after one and a quarter to one and a half turns of the nut, resulting in greatly simplifying installation of the electrical connector in underground mining. Description forklift parts as a standard item for a series of plug connectors is provided by the crown portion on the rear side, which together with axial cable entry permits a radial cable input, and a corresponding receiving hole makes it impossible to detach the cable from the fork part or unwanted disconnection molded Pro is of four located offset to each other by 90and/or open with the edge of the receiving hole through which the cable is fed radially to the hole for cable entry from four different directions with simultaneous fixing of the cable in the receiving hole. For this purpose, the receiving apertures can be performed, in particular, as the radial holes on 3/4. Especially preferred if the fork part and the crown part zamonolichennyj and preferably made as a metal rotating part, in particular brass rotating part. Particularly strong connection between the cable and the fork part is achieved when the cable when the radial supply cable is fixed in the receiving hole through the clamping sleeve, preferably the clamping sleeve connected booking or a braided cable sheath or clamped between the clamping sleeve and the receiving hole, so that tensile forces, as well as leakage currents or similar, reliably discharged through the fork part. The receiving apertures in the crown portion also provides another advantage in that they can be installed or they may be imposed screen to improve the electromagnetic shielding forklift parts and/or radially oriented or withoutyou fixation of the cable from acting on the cable tension.As is known, in the case of underground mining on the fork part is formed filling the hole for the cable entry and the crown portion, and covering the cable and the crown part obtained by injection molding, rack-elastic profile the item. For optimum sealing against the penetration of dirt and moisture forklift part can be on the wall section, adjacent to the hole for cable entry with groove for o ring that provides additional sealing on a boundary surface between the metal fork part and the filling mass filling the hole for the cable entry.In a preferred form of execution of the plug connection according to the invention, the outer thread on the socket part and the internal thread on the forklift parts are made transformi. Inexpensive and easily mounted device the Union nut on the fork part is achieved preferably through stoparea faceted ring, which on one side engages in the groove on the guide pin of the fork part and the other side into the groove on the closed-circuit coupling nuts. Between the ring tide grooves on the side Vivaldi Union nut free running or protection against kinking, thus forklift part and socket part can be connected with a predetermined Assembly and disassembly effort. Alternatively, it is possible to abandon the gap until due to the manufacturing technology of the undercut, so that in this case, the ring burst creates a detent in the form of emphasis in the assembled state of the socket and forklift parts. This can be an advantage especially when fully assembled between the front side nut and the thrust flange for the Union nut on the socket part set o-ring seal, in particular a sealing ring, which preferably sits in a groove extending between the external thread and the thrust surface of the socket part. Excessive compression of the ring is eliminated by the above measures. O-ring seal, on the one hand, prevents the metal clamping nut from the socket part and, on the other hand, prevents corrosion between these parts, which could impede the connector plug connections. With the free course of the o-ring seal may perceive themselves axial force to rebuild threads and thereby to facilitate removal.Other advantages of the drawing of examples of execution.The drawing shows:Fig.1 - plug the connection socket and forklift part according to the first form of execution with axial inlet cable, type slit;Fig.2 - plug connection with forklift part according to the second shape with a radial supply cable, type in section;Fig.3 is a perspective view of the crown parts forklift parts with Fig.2 to molding of the casting;Fig.4 - forklift part according to Fig.2 with axial inlet cable and screen, type in the context.In Fig.1 shows a first form of execution of forklift parts 10, which may be combined with the halftone part 1 in the plug connection. The halftone part 1 includes the housing of the socket part 2 of brass, in which the connector 3 are assembled mating connector 11 in forklift parts 10. Circuit 4 of the housing 2 of the socket part is provided at least one circular locking groove 5, which is fully assembled, lies in the same axial position, which is located in a cylindrical guide pin 12 forklift part 10 of the front seal and lock ring 13. The mutual positioning of electrical connectors 3, 11 through the speaker unuturum groove 14 on the upper side of the guide pin 12. At the open end to be slipped on easily guide axle 12 forklift part in the housing 2 of the socket end is provided with external thread 6, made in the form of multiple threads, preferably transactnow. Between the external thread 6 and the reverse, addressed to the fork part 10 of the thrust flange 8 in the corresponding groove 9 is planted o-ring 9A.It is shown in Fig.1 forklift part 10 is fixed on the halftone part 1 by means of the cap nut 20, which for this purpose is placed on the fork part with the possibility of free rotation on the front end has transactnow internal thread 21. The possibility of rotation and axial fixation of the collar nut 20 on the guide pin 12 forklift part 10 is ensured by the locking ring or stoparea faceted ring 22, which has its inner annular surface sits in a narrow groove 15 in the guide pin 12 forklift part 10, and its outer annular surface engages into the groove 23 on the inner perimeter of the cap nut 20. The ring burst 24 with the inner thread cap nut 20 is separated from the internal threads 21 on the gap 25, which in the example of execution according to Fig.1 assembled (not shown) provides coupling of odara interaction transactnow internal thread 21 on the Union nut 20 and transactnow external thread 6 on the housing 2 of the socket part, forklift part 10 and the halftone part 1 recorded after 1,25-1,5 rotation of the cap nut 20. O-ring seal 9A on the female part 1 is clamped in the assembled condition, i.e., screwed cap nut 20, between the latter and the thrust flange 8, so that provides additional protection from moisture, prevents corrosion between the coupling nut 20 and the housing 2 of the socket part and, in addition, has an axial impact on the cap nut 20, which allows for disassembly to go from the internal thread 21 on multiple threads 6 on the housing 2 of the socket part. In the example of execution according to Fig.1 forklift part 10 also includes a second, rear o-ring seal 16 which, as described in the document DE 20004566 U1, is located between the housing 2 of the socket part and the guide pin 12 and provides a seal against the penetration of moisture and dirt.The cable 30 is fed axially relative to the guide pin 12 on the rear side 17 of forklift parts 10 in the hole for cable entry 18 forklift parts 10. Wires 31 of the cable 30 are fixed to the electric connector 11 forklift parts 10. On the rear fork 17 part 10 is made zamonolichennyj crown portion 40 includes four offset from each other by 90open with the edge of the radial receiving holes 41A, 41C, 41P, the first opening in the crown portion 40, however, he is not associated with the crown part 40 no tension or torque. Hole for cable entry 18, conductor 31, the cable 30 and the crown portion 40 are sealed in a molded core part 50 of the rack elastic casting masses, which at the end of the cable 30 is molded in the form for casting under pressure (not shown) on forklift parts 2 and has a flexible neck 51. Because the fill is provided to lock the cable 30 to the rotation and axial locking and receiving apertures also provide for respectively fixing the core details 50 flush on the metal fork part 10. As additional barriers to the penetration of moisture between the fork part 10 made of brass and molded part 50 in the inner wall of the bore 18 for cable entry includes a groove 19, which can fit the o-ring seal 19A or at the discretion of something like that.In Fig.2 shows the lift portion 110 according to the second exemplary embodiment, which may be combined with the previously described socket part 1 and secured by means of nut 120 and the internal threads 121 on multiple external thread 6. Here also is the axial lock and install cap nut 120 is the arrival in the groove 115 in the guide pin 112 and the groove 123 on the inner perimeter of the cap nut 120. Between multiple internal thread 121 and addressed to her ring tide 124 is only a small recess, so that with screwed cap nut 120 on transactnow outer thread 6 of the housing 2 rosette parts of the ring burst 124 creates a persistent fixation on the female part 1. O-ring seal 9A on the female part 1 in assembled form is clamped between the locking nut 120 and the thrust flange 8, so that it provides extra protection from moisture and prevents corrosion between the coupling nut 120 and the housing 2 of the socket part. On the guide pin 112 is provided by a single groove o-ring seal 113, which in the assembled condition, comes in the locking groove 5 and locks the fork portion 110 axially in the housing 2 of the socket part. Between the back side 127 of the Union nut 120 and the thrust flange 128 on forklift parts 110, another o-ring seal 126 which prevents the ingress of any moisture and dirt in the intermediate space between the coupling nut 120 and forklift part 110. Of course, forklift parts guide 110 the journal is also possible to provide two annular seals and/or you can use the cap nut according to Fig.1.As provalnymi, open with the edge of the receiving hole A, B and C made as holes on 3/4, and in the receiving hole S announced here on the side of the cable 130 is laid together with the clamping sleeve 134. Thus, the cable 130, despite the supply side at an angle, is fixed on the fork part 110 and is blocked from exposure to tensile and bending forces. After joining end 131 of the cable to the plug connector 111 is formed by injection molding part 150 of the rack elastic filler mass, which completely fills or covers the cable 130, the clamping sleeve 134, the crown portion 140 and the hole 118 for cable entry, so that even under severe conditions of underground mining in the plug connection can not get the back fork part 110 no moisture or dirt. Reinforcing or shield of the cable 130 may be clamped between the clamping sleeve 134 and the outer side of the cable 130, which provides good electromagnetic shielding removes leakage current forklift part 110 and allows us to perceive on the fork part of the tensile load being imposed on cable.The performance crown portion 140 from the rear fork portion 120 is particularly clearly seen from Fig.3, the cat V, S also presents the fourth receiving hole 141D. Since receiving apertures 141 A-D are executed as holes on 3/4, then they fix the collet 134 and with it also the cable 130 forklift part 110. Pulled over the cable sheath 130 clamping sleeve 134 may be promoted only on the side of the receiving hole S, and fixed it. Coronaca part 140, which is done receiving apertures 141 A-D, forms a ring or gilbourne the continuation of the housing forklift parts. Outside on the Union nut 120 is provided knurling 129.In Fig.4 shows a third exemplary embodiment, in which the fork portion 210 has a construction identical forklift part 110. The differences in the way the supply cable 230, the execution of the relevant parts 250 and sleeves A and IS inserted into the receiving apertures A, S crown portion 240 and a radially projecting inward. Reinforcing sheath 235 cable 230 and conductor 231 cable 230 are fed through the gap between the sleeves A, S, so that after forming the molding part 250 cable 230 well-fixed relative to the tensile load. All can be provided by four cartridges, i.e. one core on each receiving hole; be available receiving apertures when the sealing can be provided with an additional locking against rotation for profile details 250. Set screen provides electromagnetic shielding. In the example of execution according to Fig.4 casting mass completely fills the hole 218 for cable entry.Not represented within the protection scope of the dependent claims, the form of execution in which the cable, preferably together with the clamping sleeve is fixed at several receiving holes 141 A-D. For professionals it is clear that the forklift part in accordance with the subject invention together with crown lengthening is suitable for both axial and radial inlet or outlet cable and that, thanks to transactnow thread, mounting plug connection is fast, even with one hand.
Claims1. Plug connection for connecting a cable in underground mining with a female part (1) and axially connected with it, with the back hole for cable entry forklift part, which is fixed on the socket part (1) via screwed on an external thread (6) on the socket part (1) and located rotatably on the fork part of the cap nut (20; 120), and is sealed against ingress of moisture and/or dirt by using at least odna inner thread (21; 121) cap nut (20; 120) is executed as multiple threads, and/or the opening (18; 118; 218) for cable entry from the rear side (17; 117; 217) fork end is provided with a crown portion (40; 140; 240), at least one radial receiving hole (41; 141; 241;) for the cable (30; 130; 230).2. Plug connection on p. 1, wherein the crown portion (40; 140; 240) has several, in particular four, arranged offset relative to each other on 90and/or open with the edge of the receiving hole (41 a-D, 141 a-D; 241 a-D).3. Plug connection under item 1 or 2, characterized in that the core part (40; 140; 240) and forklift part (10; 110; 210) zamonolichennyj and preferably made as a metal rotating part, in particular brass rotating part.4. Plug connection according to one of paragraphs.1-3, characterized in that when the radial supply cable cable (130) is fixed in one of the receiving holes (141 a-D) using the clamping sleeve (134), and reinforcing or braided cable sheath (130) connected to the clamping sleeve (134).5. Plug connection according to one of paragraphs.1-4, characterized in that the receiving apertures of the crown part fits or is established between EE in the receiving hole of the sleeve (A, S) provide additional mechanical fixing of the cable in the axial supply cable.6. Plug connection according to one of paragraphs.1-5, characterized in that the fork part is formed by injection molding rack elastic core part (50; 150; 250), the closing or filling of the cable, the hole for the cable entry and the crown part, and the fork part (10; 110) on the section of wall bordering hole for cable entry (18; 118) has a groove (19) with o-ring (19A).7. Plug connection according to one of paragraphs.1-6, characterized in that the external thread (6) on the socket part (1) and inner thread (12; 121) on the fork part (10; 110) is made transformi.8. Plug connection according to one of paragraphs.1-7, characterized in that the cap nut (20; 120) on the inner perimeter has a circular groove (23; 123) under shut-faceted ring (22; 122) or similar, providing installation on forklift part (10; 110) with the possibility of rotation.9. Plug connection according to one of paragraphs.1-8, characterized in that between the ring tide (24; 124) of the groove (23; 123) of the internal thread and the internal thread (21; 121) there is quite a big gap (25), providing the Union nut (20) the free passage or protection from the most to ensure the front side nut (20; 120) and the thrust flange (8) for Union nut (20; 120) on the socket part (1) set o-ring seal (9A), in particular a sealing ring, which preferably sits in a groove (9), passing between the external thread (6) and thrust flange (8).
FIELD: plug connectors for cables of subsurface workings of mines.
SUBSTANCE: proposed cable-terminating plug forms hollow plug socket of brass whose hollow section on cable end forms cable entry hole and has supporting collar that functions to support male connecting member projection in axial direction. Cable entry hole is provided with inner thread for turning in metal tetrahedron that has through hole for cable entry. Cable screen or armor can be placed between through hole and cable sheath to ensure adequate grounding of cable and cable plug. Inner space of plug socket is sealed by means of shaped part molded on cable sheath, on plug socket, and on polyhedron. Shaped part is also used for securing cable in axial direction on plug socket.
EFFECT: ability of long-time service in damp media due to reliable sealing attained by simple means.
13 cl, 3 dwg
FIELD: cable jointing devices.
SUBSTANCE: cable jointing box provided with through duct to receive respective cable end mounts cup-shaped electric contact whose edge forms hold-down ring tightly enclosing reduced-diameter box section. Naked conducting member is placed between electric contact and box section. Hold-down ring is squeezed to tighten up joint between duct wall and cable sheath. Tightening sleeve is capable of holding two boxes, each being connected to cable through respective electric contacts. Sleeve provides for tight joint between interrelated cable parts in region bounded by sleeve and boxes.
EFFECT: enhanced quality of wire-to-cable joint.
8 cl, 10 dwg
FIELD: electrical engineering; drilling and servicing inclined and horizontal oil-gas wells.
SUBSTANCE: proposed cable connector specially designed to prevent ingress of conducting medium (drilling mud) into its interior thereby ensuring reliable insulation of contacts from environment and preventing electric current leakage (leakage resistance being minimum 50 - 100 Megohms), or poor contact between connector mating parts has pin section and jack section with contact members inside them, as well as membrane. Jack section is made in the form of cylindrical shroud with stepped inner space accommodating contacts made in the form of flexible split rings secured on flexible cross-arms, flexible membrane disposed at pin section joint, and spring-loaded sealing ring mounted within shroud for displacement. Inner space of jack section is filled with insulating liquid. Cylindrical pin section has conical end; diameter of pin cylindrical part is larger than inner diameter of sealing ring.
EFFECT: enhanced tightness and reliability of contact between mating parts of connector.
1 cl, 4 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed junction module has independent connecting member inserted in jacks which are connected to modular members incorporated in operating and protective equipment of transformer substations and power distribution systems. Each connecting member has external flexible shroud accommodating conducting ring wherein plurality of conducting parts are installed and passed through ring channels. Mentioned conducting parts are assembled in bundle for its axial displacement and turning in ring which makes it possible to wire and connect them to respective contact leads provided in jacks and related to each of adjacent members.
EFFECT: eliminated leakage of protective gas during junction due to reliable sealing and insulation of joint.
6 cl, 7 dwg
FIELD: electrical engineering; electrical connections to supply power to submersible pump motor for extracting stratum liquid.
SUBSTANCE: proposed cable extension-cord box of submersible motor cable line that suffers in operation high hydrostatic pressure and temperature has box proper accommodating cable fixed in position by means of fastening member; cable has conductors and terminal block provided with holes to receive cable lugs and conductors connected to them; at least one of joints between cable conductors and lugs is disposed in terminal block hole at distance L ≥ 0.5 d, where d is cable conductor diameter, from butt-end surface of block disposed closer to supporting member additionally installed in cable box and provided with holes to receive cable conductors.
EFFECT: enhanced reliability and service life, enlarged functional capabilities of device.
20 cl, 8 dwg, 1 tbl
FIELD: devices for formation of electrical connections in vehicles; the repair kit is designated for repair of a failed electrical device of a vehicle connected to the vehicle electrical equipment system by several wires.
SUBSTANCE: the repair kit has a new electrical device installed instead of the failed one, several wires connected to the new electrical device and a built-up protective box designated for protection of the electrical connection made by joining of the wires of the new electrical device and the wires of the vehicle electrical equipment system. The built-up protective box has a body with several holes insulated from one another. The packing rings positioned in each hole of the body intended for arrangement of the new electrical device section of the connected respective wire of the vehicle electrical equipment system and the respective new electrical device form in fact a waterproof packing around the section of the wires connected to one another by joining. The protective built-up box has also a cover joined to the body. The claimed repair kit is preferably designated for replacement of the sensor of the content of oxygen in exhausted gases failed on the vehicle.
EFFECT: simplified aftersale servicing of the vehicle.
9 cl, 8 dwg
FIELD: electric engineering, possible use during drilling and operation of slanting and horizontal oil-gas wells.
SUBSTANCE: cable socket for operation in conductive environment consists of rod and socket parts with holding assembly. Holding assembly is positioned in rod part of socket and includes spring-loaded bushing, internal diameter of which is greater than external diameter of socket part body, and holding elements, held together by resilient ring and in casing, which is pressed by spring to internal shelf of rod part body. Rod part additionally contains rotary cutoff plate and lever connected thereto, pinned on an axis.
EFFECT: reliable holding of cable socket, and also reliable connection of rod and socket parts at low force, applied to cable with socket held on its end, while disconnection occurs at distance 200-500 meters from force application point.
FIELD: instrumentation engineering; space-rocket technology, aeronautical engineering, and advanced radio electronic devices.]
SUBSTANCE: proposed sealed plug has metal shroud that incorporates cylindrical part being jointed, rectangular flange, and cylindrical wiring tail, as well as glass insulator installed within shroud and reinforced by dowel pins. Shroud accommodates intermediate steel ring assembled by tight fit, its inner diameter being equal to outer one of glass insulator. Plug shroud is built of two parts of which first one has cylindrical part being jointed and front end of rectangular flange abutting against the latter and made of light-mass metal alloys whose coefficient of linear expansion is close to that of steel, as well as second end of rectangular flange abutting against cylindrical wiring tail, and cylindrical wiring tail, both made of steel.
EFFECT: reduced size and mass at high degree of plug tightness.
1 cl, 1 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed printed-circuit conductor 1 is provided with a number of jacks 2 for same number of terminals 3 to which magnet wires 8 are drawn by means of tool 11 to form junction by passing magnet wires 8 through terminals 3. Each jack or cavity 2 is separated from adjacent one by means of transverse partitions 4 and 4' which makes it possible to introduce sealing compound into respective cavity 2 of jack up to level 12 below input step 10 of magnet wires and above edge of terminals 3 so as to ensure that mentioned terminals and junction points between them and magnet wires 8 are immersed in sealing compound to prevent oxidation at junction points.
EFFECT: enhanced effective life of sealing compound.
8 cl, 4 dwg
FIELD: electrical connector and method for connecting coaxial cable lead to terminal.
SUBSTANCE: proposed connector has nut incorporating receiving port for connection to terminal. Nut also has circular clip. Connector also has base member one of whose ends is provided with projection to be inserted through clip hole. Other end of base member incorporates part of inner surface. Connector also has support with flange and body. Support is free to move for compressing external cable conductor and shell with support body and part of inner surface to obtain distal compression. Tightening nut with terminal compresses projection between support flange and circular clip to obtain proximal tightness.
EFFECT: enhanced tightness, reduced manufacturing and maintenance charges.
10 cl, 11 dwg
FIELD: electrical engineering; connectors for cable including those used in explosive and gas-laden areas.
SUBSTANCE: proposed explosion-proof connector has plug section shroud and socket section shroud accommodating plugs and sockets, respectively. Cable conductors are soldered to plug pins and socket jacks and sealed in shrouds by means of sealing compound. Shrouds of plug and socket sections are joined together by threaded bracing bushing provided with lock nut to prevent their spontaneous turn-out. Translational movement of bracing bushing along connector axis is limited on one end by projection provided on socket section shroud and on other end, by lock ring. Socket section shroud has groove to receive packing.
EFFECT: simplified design, enhanced reliability of explosion protection due to reliable sealing.
1 cl, 1 dwg