CN207320551U - A kind of tie down screw - Google Patents

Abstract

A kind of tie down screw, conductor processing unit (plant), including handle, outer end, screw rod, limiting slot, front end are connected suitable for one kind；The handle is cylindrical rhabodoid, vertical with the axis of outer end in the hole of outer end；The outer end is arranged on screw rod one end；The screw rod is arranged on one end of outer end；The limiting slot is arranged on the other end opposite with outer end of screw rod, is annular groove；The front end is arranged on the outer end of limiting slot, and with limiting slot coaxial line, its diameter is less than or equal to the diameter of screw rod, its end is hemispherical, has the motion control that can complete movable wedge, and have the characteristics that auto-lock function.

Description

A kind of tie down screw

Technical field

The invention belongs to high voltage power transmission and transforming field, the processing of more particularly to a kind of connection conductor on high-voltage circuitbreaker The tie down screw of the lower positioning and locking device of device.

Background technology

High-voltage circuitbreaker, is that common one kind for switching circuit connection mode is commonly used and set in high voltage power transmission and transforming circuit It is standby；, it is necessary to multiple connection conductors for being connected with each other different circuits, these connection conductors, due to high pressure in high-voltage circuitbreaker The structure design of breaker needs, and often its shape and structure will match with whole high-voltage circuitbreaker；These connection conductors, greatly Manufactured more using copper, aluminum metal, on the one hand to transmit larger electric current, on the other hand need itself to have certain intensity and just again Degree and machining accuracy；It is a kind of structure diagram of common connection conductor such as Fig. 1, including lower terminal, connecting rod, locking Hole, upper terminal, upper connecting hole；Its lower end is connected with a conducting wire, and upper end is connected with a conducting wire, since structure needs Want, the connecting hole of the upper end needs the terminal grafting with conducting wire, and uses bolt in locking hole by upper terminal and conduction The terminal of circuit tightens together；High additionally, due to the voltage of its transmission, electric current is big, it is desirable to and the contact of each contact surface is good, Avoid producing spark；Therefore need to be processed upper connecting hole and locking hole, since this linking conductor shape is lack of standardization, do not have Positioning datum is matched with lathe, therefore the processing in the two holes is compared and is difficult to realize, using its processing cost of large-scale synthesis lathe Height, efficiency is low, and precision can not ensure.

The content of the invention

For problem present in existing connection conductor hole machined, the present invention proposes a kind of processing dress for connecting conductor Put, it is characterised in that：Including base, lower template, stand, cope plate, lower positioning and locking device, upper positioner；The bottom Seat is installed on the lower part of stand, vertical with stand；It is provided with the base and the matched fixed element of platen；Institute The fixed element stated is hole either notch；The lower template is installed on a side of stand, its plane and stand are perpendicular；

The lower template includes lower die plate body, guide sleeve, limit element；The lower die plate body is plate body, one end It is fixedly connected with stand, its connection mode has tightening member at the same time and has setting element, can keep lower template and the phase of stand Position is stablized；The hole of installation guide sleeve and the hole of installation limit element are provided with the lower die plate body；The installation The position in the hole of guide sleeve is identical with the position of connection conductor its locking hole after installation is complete.

The guide sleeve is installed on lower die plate body, and transition engagement sleeves are used with the guide sleeve mounting hole on lower die plate body Connect；Including sleeve, flange, notch；The sleeve is hollow cylinder, its internal diameter and the locking hole on processing connection conductor Bit diameter is identical, its outside diameter is identical with the installation bore dia on lower die plate body, and the side of transition cooperation is used with this mounting hole In formula press-in hole；The flange is arranged on sleeve one end, it is vertical with excircle of sleeve column with the end face of sleeve connection；It is described Flange overall diameter be more than more than 5 millimeters of the outside diameter of sleeve；The notch is arranged on the edge of flange, is semicircular indentations, Its center of circle is located on the excircle of flange；The notch runs through the thickness of flange.

The limit element is installed on lower die plate body and is overlapped with the notch on guide sleeve, is screw or pin.

The stand is installed on base, is fixedly connected with base, and vertical with base.

The cope plate is installed on stand upper end, is fixedly connected with stand, its connection mode is using tightening member and determines Bit unit combines, and can ensure that the relative position stabilization of cope plate and stand does not change.

The cope plate includes upper mold plate body, guide sleeve, limit element；The upper mold plate body is platy structure, its One end is fixedly connected with stand；Guide sleeve mounting hole and limit element mounting hole are provided with the upper mold plate body；It is oriented to The upper connection hole site that the position of set mounting hole and connection conductor needs are processed is identical；The guide sleeve and limit element and institute The guide sleeve in lower template stated is identical with limit element structure, guide sleeve size and the upper connection pore size phase for being connected conductor Match somebody with somebody.

The lower positioning and locking device is installed on base, is contacted with connecting the lower face of lower terminal of conductor, can The position of positioning and locking connection conductor on this processing unit (plant).

The lower positioning and locking device includes movable wedge, spacer pin, fixed seat, tie down screw；The movable wedge Block is installed on base, and with being bonded above base, two gib blocks of its both sides and fixed seat coordinate, can be along two for its bottom surface A gib block does branch line movement, its afterbody is connected with tie down screw, can take exercises under the traction of tie down screw；The limit Position pin is installed in movable wedge, corresponding with the end position of tie down screw；The fixed seat is installed on base, the bottom of with Seat is fixedly connected；The tie down screw is installed in fixed seat, can be rotated in fixed seat so as to fulfill axial movement.

The movable wedge includes inclined-plane, end face, towing pad, bottom surface, pin hole, side；The inclined-plane and bottom surface one End is associated with certain angle again, and the size of its angle is with being connected conductor terminal bottom surface and the angle phase of upper terminal end face up and down Together；The end face is arranged on the other end on bottom surface and inclined-plane, with plane perpendicular；The towing pad is arranged on end face, position In on the cross central line of end face, the end construction of its depth and tie down screw matches；The bottom surface is arranged on end face and side The lower part in face, one end are overlapped with the one end on inclined-plane, and the other end is vertical with end face；The pin hole is arranged on side, through two A side, its position are corresponding with the position after the annular groove insertion towing pad of tie down screw end；The side is positioned at oblique Between face and bottom surface, and it is vertical with bottom surface and inclined-plane respectively；The side has two, and two sides are parallel to each other, its shape For triangle.

The fixed seat includes fixed charge method end plate, connecting hole, gib block, tie down screw mounting hole；The fixed charge method end plate Installed in the end of base, it is fixedly connected with base；The connecting hole is arranged on the lower part of fixed charge method end plate, is slotted hole, energy Enough adjust the relative position of fixed charge method end plate and base；The gib block is installed on the one side of fixed charge method end plate, with fixed charge method end plate Side it is vertical；The gib block has two, its medial surface is parallel to each other, two side spacing of its width and movable wedge From identical；The tie down screw mounting hole is arranged on fixed charge method end plate, and passes through the thickness of fixed charge method end plate, is threaded hole, its The specification of screw thread is Standard fine thread, and matches with the external screw thread on tie down screw.

The tie down screw includes handle, outer end, screw rod, limiting slot, front end；The handle is cylindrical bar Shape body, it is vertical with the axis of outer end in the hole of outer end, can be movable in mounting hole；The outer end is set It is concentric with screw axis in screw rod one end, it is provided with vertical with axis and is overlapped with Axis Cross, the diameter and hand in its hole The diameter of handle matches；The screw rod is arranged on one end of outer end, and with outer end coaxial line, its excircle is provided with outer spiral shell Line, the external screw thread be Standard fine thread, its specification and size with it is interior on the tie down screw mounting hole on fixed charge method end plate Screw thread matches；The limiting slot is arranged on the other end opposite with outer end of screw rod, is annular groove, its groover rot diameter is small In the diameter of screw rod, its width is more than the diameter of spacer pin, coaxial with screw rod axial line；The front end is arranged on limiting slot Outer end, and limiting slot coaxial line, its diameter is less than or equal to the diameter of screw rod, its end is hemispherical.

The position limit device includes block, upper limit plate, V-shaped groove；The block is installed on stand, with stand It is fixedly connected, its connection mode combines for locking element and setting element, can ensure that the relative position of block and stand is stablized Do not change；The mounting hole of locking element and setting element is provided with block, the position of its mounting hole is the position phase with V-shaped groove To another side on；The upper limit plate is arranged on the top of V-shaped groove, is fixedly connected with block, and by the upper end of V-shaped groove Mouth closing, its lower face are vertical with two faces of V-shaped groove；The V-shaped groove is arranged on the lower part of upper limit plate, positioned at block One side, the angle of its V-shaped groove is 120 °, its height is less than the length of connection conductor upper terminal, its depth is less than connection conductor The a quarter of upper terminal diameter.

Beneficial effect

The beneficial effects of the present invention are can realize the processing that hole on conductor is connected on regular drills bed, structure Simply, it is easy to operate, high precision machining, work efficiency height.

Brief description of the drawings

Fig. 1 is the structure diagram for connecting conductor

A. lower terminal, B. connecting rods, C. locking holes, D. upper terminals, the upper connecting holes of E..

Fig. 2 is the structure diagram for connecting conductor processing unit (plant)

1. base, 2. stands, 3. lower templates, 4. cope plates, 5. times positioning and locking devices, 6. connection conductors.

Fig. 3 is the structure diagram at another visual angle for connecting conductor processing unit (plant)

1. base, 2. stands, 3. lower templates, 4. cope plates, 5. times positioning and locking devices, 6. connection conductors, 7. upper limits Device.

Fig. 4 is the structure diagram of lower template

31. lower die plate body, 32. guide sleeves, 33. limit elements.

Fig. 5 is the structure diagram of guide sleeve

321. sleeves, 322. flanges, 323. notches.

Fig. 6 is the structure diagram of lower positioning and locking device

51. movable wedge, 52. spacer pins, 53. fixed seats, 54. tie down screws.

Fig. 7 is the structure diagram of movable wedge

511. inclined-planes, 512. end faces, 513. towing pads, 514. bottom surfaces, 515. pin holes, 516. sides.

Fig. 8 is the structure diagram of fixed seat

531. fixed charge method end plates, 532. connecting holes, 533. gib blocks, 534. tie down screw mounting holes.

Fig. 9 is the structure diagram of tie down screw

541. handles, 542. outer ends, 543. screw rods, 544. limiting slots, 545. front ends.

Figure 10 is the structure diagram of position limit device

71. block, 72. upper limit plates, 73.V shape grooves.

Embodiment

In order to better illustrate technical scheme, in conjunction with attached drawing, the specific implementation of the present invention is further illustrated Mode；Such as Fig. 1, a diameter of 30 millimeters of the locking hole C for the connection conductor 6 selected in this example, a diameter of 50 milli of upper connecting hole E Exemplified by rice；

Such as Fig. 2, Fig. 3,400 millimeters of the length of base 1,200 millimeters of width, 30 millimeters of thickness are selected, and be installed in The lower part of stand 2, it is vertical with stand 2, it is connected by the way of welding with stand 2；It is provided with base 1 and platen Notch is matched as fixed element, machining tool is using the general drilling machine of the industry；Steel plate is selected in this example as stand 2.

Such as Fig. 5, in this example by the way of repeatedly processing, because connection conductor 6 uses aluminium or copper, its hardness mostly It is low, if be directly processed using big drill bit, workpiece is easily damaged, therefore, in this example selects the guide sleeve of multiple specifications 32, classification processing, the outside diameter for selecting sleeve 321 is 60 millimeters, and 40 millimeters of height, is so conducive to generalization, endoporus is respectively 10 millimeters, 20 millimeters, 32 millimeters, processing can be so classified, reduces processing capacity once, is conducive to protective bonding conductor 6；Choosing It it is 90 millimeters with the outside diameter of flange 322, notch 323 and is arranged to semicircle by 8 millimeters of thickness by a diameter of 10 millimeters of notch 323 Shape, its center of circle are located in the outer circumferential edges of flange 322, and this completes the implementation of guide sleeve 32；So be conducive to drill bit It is oriented to so that the hole processed is not in that deflection and diameter deviation are excessive, ensure that machining accuracy.

It is plate body that lower die plate body 31 is selected such as Fig. 4, in this example, and one end is fixedly connected with stand 2, its connection mode has tightly Gu element has setting element again at the same time, lower template 3 and the relative position of stand 2 can be kept to stablize；Set on lower die plate body 31 It is equipped with the hole of installation guide sleeve 32 and the hole of installation limit element 33；Ensure the position in the hole of installation guide sleeve 32 with being connected conductor The position of 6 C of its locking hole after installation is complete is identical；Selection limit element 33 is screw, and guide sleeve 32 is installed on lower die plate body On 31, and limit element 33 is installed on lower die plate body 31 and is overlapped with the notch 323 on guide sleeve 32, just complete lower die The implementation of plate 3.

The structure identical with lower template 3 is selected in this example, and as cope plate 4, the wherein outside diameter of guide sleeve is 60 millimeters, interior Footpath is respectively 10 millimeters, 25 millimeters, 35 millimeters, 50 millimeters, is processed stage by stage；By the upper mold plate body of cope plate 4, it is oriented to Set, limit element, is installed according to the mounting means of lower template 3, ensures the position of its guide sleeve mounting hole with being connected conductor 6 Need the upper connecting hole E positions that process identical；Just complete the implementation of cope plate 4.

Material of the steel material as movable wedge 51 is selected such as Fig. 7, in this example, inclined-plane 511 and 514 one end of bottom surface are weighed Be associated with certain angle, selected in this example with connect conductor about 6 terminal A bottom surfaces it is identical with the angle of upper terminal D end faces For 42 °；End face 512 is arranged on to the other end on bottom surface 514 and inclined-plane 511, it is vertical with bottom surface 514；Towing pad 513 is arranged on On end face 512, on 512 cross central line of end face, the depth that towing pad 513 is selected in this example is 20 millimeters, the milli of diameter 14 Rice；Bottom surface 514 is arranged on to the lower part of end face 512 and side 516, one end is overlapped with the one end on inclined-plane 511, the other end and end face 512 is vertical；Pin hole 515 is arranged on side 516, perpendicular to side 516 and runs through two sides 516, its place-centric away from It it is 10 millimeters, a diameter of 5 millimeters with a distance from end face 512；In this example by side 516 between inclined-plane 511 and bottom surface 514, It is and vertical with bottom surface 514 and inclined-plane 511 respectively；Side 516 has two to be parallel to each other, its shape is triangle, is thus completed The implementation of movable wedge 51.

Such as Fig. 8, steel plate is selected to be used as fixed charge method end plate 531 in this example, by fixed charge method end plate 531 installed in the end of base 1, with Base 1 is fixedly connected；Connecting hole 532 is arranged on to the lower part of fixed charge method end plate 531, there is two or more, is slotted hole, so can The relative position of fixed charge method end plate 531 and base 1 is adjusted, to ensure that movable wedge 51 can be complete with the lower end plane of lower terminal A Fitting；Select square steel to be used as gib block 533 in this example, there is two, by two gib blocks 533 installed in fixed charge method end plate 531 with The identical one side of movable wedge 51, vertical with the side of fixed charge method end plate 531, two medial surface is parallel to each other, two inner sides Distance is identical between width and two sides 516 of movable wedge 51 between face, to ensure that movable wedge 51 can be in two gib blocks 533 inside are for linear motion；Tie down screw mounting hole 534 is arranged on fixed charge method end plate 531, and passes through fixed charge method end plate 531 Thickness, is threaded hole, and the specification of its screw thread is Standard fine thread, and the national standard regular screw threads of M20X1.5 are selected in this example, This completes the implementation of fixed seat 53.

Such as Fig. 9,120 millimeters of the round steel length of 6 millimeters of diameter is selected in this example, as handle institute 541, handle 541 is pacified It is in the hole on outer end 542 and vertical with the axis of outer end 542, can be movable in mounting hole；Selected in this example outer 40 millimeters of a diameter of 30 mm length of end 542, is arranged on 543 one end of screw rod by outer end 542 and is designed as with screw rod 543 One, selects on outer end 542 and sets handle installing hole, its hole is vertical with 542 axis of outer end and is overlapped with Axis Cross, its A diameter of 6.5 millimeters of hole；The outside diameter that screw rod 543 is selected in this example is 20 millimeters, and length is 120 millimeters, and excircle is provided with The common closely-pitched external screw thread of M20X1.5；The groover rot diameter that limiting slot 544 is selected in this example is 14 millimeters, and 8 millimeters of width, will limit Position groove 544 is arranged on the other end opposite with outer end 542 of screw rod 543, coaxial with 543 axial line of screw rod；Selected in this example Front end 545 is the hemispherical of 8 millimeters of radius, and front end 545 is arranged on to the outer end of limiting slot 544, coaxial with limiting slot 544 Line, this completes the implementation of tie down screw 54.

Rectangular steel plates are selected to be connected block 71 with stand 2 as block 71, fastened using screw such as Figure 10, in this example It is attached with the mode of pin positioning, can ensures that the relative position stabilization of block 71 and stand 2 does not change；On block 71 The mounting hole of locking element and setting element is set, and the position of its mounting hole is in the opposite side opposite with the position of V-shaped groove 73 On face；Select steel plate that upper limit plate 72 is arranged on to the top of V-shaped groove 73, is consolidated with block 71 as upper limit plate 72 in this example Fixed connection, and the upper port of V-shaped groove 73 is largely closed, its lower face is vertical with two faces of V-shaped groove 73, ensures that connection is led The upper surface of the upper terminal D of body 6 is fully bonded with it to be contacted；V-shaped groove 73 is arranged on to the lower part of upper limit plate 72, position in this example In the one side of block 71, the angle of its V-shaped groove is 120 °, and it is 50 millimeters that its height is selected in this example, its depth is less than connection The a quarter of 6 upper terminal D diameters of conductor, this completes the implementation of position limit device 7.

Such as Fig. 6, movable wedge 51 is installed on base 1, its bottom surface above base 1 with being bonded, its both sides and fixation Two gib blocks of seat 53 coordinate, and can do branch line along inside two gib blocks and move, its afterbody passes through limit with tie down screw 54 Position pin 52 connects, and selects the straight pin of national standard to be transported as spacer pin 52 under locking screw, 54 traction in this example It is dynamic；Spacer pin 52 is installed in movable wedge 51, it is corresponding with the end position of tie down screw 54, positioned at tie down screw 54 The position of limiting slot 544；Fixed seat 53 is installed on base 1, is fixedly connected with base 1 using screw；By tie down screw 54 In fixed seat 53, it can be rotated in fixed seat 53 and realize axial movement, this completes lower positioning and locking dress Put 5 implementation.

Such as Fig. 1, Fig. 2, lower template 3 is installed on to a side of stand 2, its plane and stand 3 are perpendicular, and stand 2 is pacified Dress on the base 3, is fixedly connected with base 1, and vertical with base 1, and cope plate 4 is installed on 2 upper end of stand, solid with stand 2 Fixed connection, its connection mode are combined using tightening member and setting element, can ensure that the relative position of cope plate and stand is steady It is fixed not change；Lower positioning and locking device 5 is installed on base 1, is contacted with connecting the lower face of lower terminal A of conductor 6, can The position of positioning and locking connection conductor 6 on this processing unit (plant), position limit device 7 is installed on stand 2, solid with stand 2 Fixed connection, its connection mode combine for locking element and setting element, can ensure the opposite position of position limit device 7 and stand 2 Put stabilization not change, this completes the General Implementing of the present invention.

In application, the present apparatus is fixed on Drilling machines bench, the lower face for connecting conductor 6 is placed on lower positioning and locking On the inclined-plane of the movable wedge 51 of device 5, ensure connection conductor 6 upper terminal D it is vertical with base 1, the position of upper connecting hole E and The guide sleeve hole center of cope plate 4 overlaps, and the excircle of upper terminal D positions in the V-shaped groove of position limit device 7, upper terminal D's Upper surface is bonded with the upper limit plate 72 of position limit device 7, and turn tie down screw 54, movable wedge 51 travels forward, further Locking connection conductor 6 starts drilling machine, and according to macropore order after first aperture, the processing of connecting hole E is done step-by-step；Then this is filled Rollover is put, lower template 3 is upward, guide sleeve is replaced also according to the order of macropore after first aperture, is gradually completing adding for locking hole C Work；After machining, unclamp tie down screw 54, take out connection conductor 6, just complete this process, reinstall it is next, so In this way, high in machining efficiency, precision is high, is hardly damaged connection conductor 6, ensure that connection conductor 6 is normal on high-voltage circuitbreaker Work, the opposite safety for realizing power transmission and transformation.

Claims (3)

1. a kind of tie down screw, suitable for a kind of lower positioning and locking device for the processing unit (plant) for connecting conductor, the connection is led Body processing unit (plant) includes base, lower template, stand, cope plate, lower positioning and locking device, upper positioner；The lower positioning Locking device includes movable wedge, spacer pin, fixed seat, tie down screw；It is characterized in that：The tie down screw includes hand Handle, outer end, screw rod, limiting slot, front end；The handle is cylindrical rhabodoid, in the hole of outer end with outside The axis of end is vertical, can be movable in mounting hole；The outer end is arranged on screw rod one end, concentric with screw axis, It is provided with vertical with axis and is overlapped with Axis Cross, the diameter in its hole and the diameter of handle matches；The screw rod One end of outer end is arranged on, with outer end coaxial line, its excircle is provided with external screw thread；The limiting slot is arranged on screw rod The other end opposite with outer end, be annular groove, its groover rot diameter is less than the diameter of screw rod, its width is more than the straight of spacer pin Footpath, it is coaxial with screw rod axial line；The front end is arranged on the outer end of limiting slot, and with limiting slot coaxial line, its diameter is less than Equal to the diameter of screw rod.

A kind of 2. tie down screw according to claim 1, it is characterised in that：The external screw thread of the screw rod is Standard fine Screw thread, its specification and size match with the internal thread on the tie down screw mounting hole on fixed charge method end plate.

A kind of 3. tie down screw according to claim 1, it is characterised in that：The front end, its end are hemispherical.