CN202336605U - Pipeline hot tapping machine - Google Patents

Pipeline hot tapping machine Download PDF

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Publication number
CN202336605U
CN202336605U CN2011205017176U CN201120501717U CN202336605U CN 202336605 U CN202336605 U CN 202336605U CN 2011205017176 U CN2011205017176 U CN 2011205017176U CN 201120501717 U CN201120501717 U CN 201120501717U CN 202336605 U CN202336605 U CN 202336605U
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China
Prior art keywords
main shaft
gear
tapping machine
housing
transmission mechanism
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CN2011205017176U
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Chinese (zh)
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宋战修
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Individual
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Individual
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Abstract

The utility model discloses a pipeline hot tapping machine. The tapping machine mainly comprises a shell, a main shaft, a mandrel, a drilling tool, a transmission mechanism and a feed mechanism. The pipeline hot tapping machine has the functions of multi-stage rotating speed, multi-stage automatic feed, manual drive, electric drive and the like. The pipeline hot tapping machine is compact in structure, convenient and practical, labor-saving, and low in construction cost.

Description

Pipe pressurized tapping machine
Technical field
The utility model relates to a kind of under pipe pressurized duty, is used for it is carried out the tapping machine of tap operation.
Background technology
The patent No. is that the Chinese utility model of ZL01217617.6 has disclosed a kind of pipe pressurized electrical tapping machine; This tapping machine mainly comprises pipe clamp, gate valve and borehole drill construction; Wherein, pipe clamp is fixed on as mounting base on the pipeline of treating perforate, and gate valve is fixed on the pipe clamp; Borehole drill construction then on being fixed to gate valve in, the drilling tool on it passes in the gate valve opening on the hole and pipe clamp pipeline is holed.
Because power set and its borehole drill construction branch of the moving tapping machine of above-mentioned pipeline band piezoelectricity are arranged; Link to each other with drilling tool in the borehole drill construction through flexible axle; Not only cause the tapping machine complex structure; And causing very big inconvenience to drilling operation, complicated structure causes difficulty then for the later maintenance of equipment, also is unfavorable for the steady operation of equipment simultaneously.
The utility model content
To the problem that prior art exists, it is a kind of simple in structure that the purpose of the utility model is to provide, both can manual drives, also can motorized motions, but also pipe pressurized tapping machine that can autofeed.
For realizing above-mentioned purpose, the pipe pressurized tapping machine of the utility model mainly comprises housing, main shaft, mandrel, drilling tool, transmission mechanism, delivering gear; The main shaft bottom is installed in the housing through bearing is rotatable, and stretch out from housing on main shaft top; Main shaft is a hollow shaft, and mandrel slidably is fitted in the centre bore of main shaft, and circumferentially fixing with main shaft; Lower housing portion is provided with and supplies and outside airtight connection structure connecting, and the mandrel lower end passes from the via hole of the syndeton setting of lower housing portion, is sealed by hermetically-sealed construction between via hole hole wall and the mandrel, and drilling tool is fixed on the mandrel lower end; Transmission mechanism is arranged between the bottom and housing sidewall of main shaft in housing, and transmission mechanism is outside equipped with power intake at housing, and external impetus rotates through the transmission mechanism driving main shaft; Delivering gear comprises driving wheel, driven pulley, intermediate transmission mechanism, feed nut; Driving wheel is sleeved on the main shaft upper axis and circumferentially fixes on one's body and with main shaft, and driven pulley turns on the main shaft axle body that is sleeved on the driving wheel top, and main shaft top axle body has external screw thread; The feed nut thread is connected on one's body the main shaft upper axis; Be provided with linkage on the driven pulley and between the feed nut, the driving wheel that rotates with main shaft rotates around main shaft by required rotating speed through intermediate transmission mechanism driving driven pulley, simultaneously; Driven pulley then orders about the feed nut through the linkage on it and rotates around main shaft together with one of which, and makes the feed nut along main axle moving thus; Along with drilling tool boring, the feed nut moves down along main shaft, and moves down through the pushing tow mandrel and to make the drilling tool autofeed; For this reason; Be provided with the limited block that extends radially out main shaft on the mandrel or near its upper end, and the main shaft axle body is provided with and supplies axially movable slotted hole of this limited block or elongated slot.
Further; Said driving wheel and said driven pulley are made up of driving gear and driven gear respectively; Said intermediate transmission mechanism is made up of carrier gear, has two mutual coaxial gears that are meshed with said driving gear and said driven gear of fixing and be respectively applied on this carrier gear.
Further; Said linkage is driving lever or shift fork; This driving lever or shift fork lower end and said driven gear fix, and upper end extreme direction on said main shaft extends, and radially is extended with the block that said driving lever or shift fork engage on the said feed nut; Driving lever or shift fork allow this block to move up and down along driving lever or shift fork self stirring the rotation of feed nut through this block when.
Further; Said linkage is made up of a stop collar; This stop collar is sleeved on the outside of said main shaft and said feed nut, and its lower end and driven gear fix, and the upper end is rotatable to be supported on the support ring that is provided with on the main shaft axle body of feed nut top; The feed nut is provided with radially the block that extends, and the stop collar sidewall is provided with slotted hole or the elongated slot that supplies said block to insert, circumferentially match and allow block to move up and down with block.
Further, said housing top is provided with end cap, has the through hole that supplies said main shaft to pass and stretch out on this end cap, and the said driving gear that is sleeved on the main shaft is supported on this end cap.
Further, said slotted hole or elongated slot on said limited block and the said main shaft circumferentially match, and make said mandrel and main shaft circumferentially fixing thus.
Further, when said main shaft rotated along said drilling tool boring direction, said feed nut rotated relative to main shaft round about, realized the autofeed of drilling tool.
Further, seal by sealing ring or sealing ring between the said via hole hole wall of said lower housing portion and the said mandrel.
Further, the said syndeton of said lower housing portion is a ring flange.
Further, also be provided with in the said via hole of said lower housing portion and be used for bearing that the said mandrel that passes is supported, said sealing ring or sealing ring are arranged on the axial outside of this bearing.
Further, on one's body the lower shaft of said main shaft in said housing, be provided with some groups of said transmission mechanisms vertically, each transmission mechanism all has the power intake that joins with external driver device.
Further, said drive unit is motor or operating grip.
Further; Said transmission mechanism is made up of worm and gear, and wherein, worm gear set is contained in lower shaft that said main shaft is positioned at said housing and circumferentially fixing with main shaft on one's body; Worm screw is supported on the housing sidewall, and worm screw stretches out housing sidewall one end and has the syndeton of joining with external driver device.
Further; Said transmission mechanism is made up of bevel-gear sett; One of them bevel gear is sleeved on lower shaft that said main shaft is positioned at said housing and circumferentially fixing with main shaft on one's body; Another bevel gear is supported on the housing sidewall, and this bevel gear goes up and coaxially to be fixed with one and to stretch out the axostylus axostyle of housing sidewall, and this axostylus axostyle outer end has the syndeton of joining with external driver device.
Further; Said carrier gear is installed on the end cap on said housing top through swing arm; This swing arm is around the bearing pin swing parallel with said main shaft; And through near major axes orientation swing or to away from the major axes orientation swing, and make carrier gear be meshed or be separated with said driving gear and said driven gear.
Further; The pin shaft hole of said swing arm is located at the middle part of swing arm; Swing arm supplies the brake pad that rubs mutually with said driven gear outer circumference surface in the face of an end of said main shaft one side surface is provided with, the other end is provided with handle, between handle and pin shaft hole, also is provided with the draw-in groove that is used to clamp said carrier gear on this side surface; Through control crank to moving near major axes orientation or away from major axes orientation; Realize that carrier gear is meshed or is separated with said driving gear and said driven gear, and after carrier gear and driving gear and driven gear are separated, said brake pad is engaged with the driven gear outer circumference surface rub and stop its rotation.
Further, also be provided with on the said driven gear be used for said swing arm on said brake pad engage the friction step circle.
Further, said driving wheel, said driven pulley constitute by friction pulley, and said intermediate transmission mechanism is made up of slip gear.
Further, said driving wheel, driven pulley are made up of belt pulley or sprocket wheel, and said intermediate transmission mechanism is made up of belt gear or chain-drive mechanism.
Compared with prior art, the utility model compact conformation, dependable performance, convenient construction.
Description of drawings
Fig. 1 is pipe pressurized tapping machine embodiment 1 structural representation of the utility model;
Fig. 2 is an A-A cutaway view among Fig. 1, and at this moment, carrier gear 16 is in the state of being meshed with driven gear 12, driving gear 10;
Fig. 3 is an A-A cutaway view among Fig. 1, and at this moment, carrier gear 16 is in phase-separated state with driven gear 12, driving gear 10, and brake pad 1502 is in the position that can be frictionally engaged with driven gear 12;
Fig. 4 is driven gear 12 cutaway views among Fig. 1;
Fig. 5 is swing arm 15 structural representations among Fig. 1;
Fig. 6 is the pipe pressurized tapping machine embodiment 2 partial structurtes sketch mapes of the utility model;
Fig. 7 is the pipe pressurized tapping machine embodiment 3 partial structurtes sketch mapes of the utility model;
Fig. 8 is the cutaway view of main shaft 2 among Fig. 7;
Fig. 9 is bevel gear 4 cutaway views among Fig. 7;
Figure 10 is worm gear 39 cutaway views among Fig. 7.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is elaborated.
At first need to prove; Among above-mentioned utility model content part and the following embodiment; When introducing the structure of the utility model; Used the word of one type of upper end, lower end, this type word is just for the convenience of text description, when the utility model tapping machine not being used towards any qualification effect is arranged.
Embodiment 1
Like Fig. 1-shown in Figure 7 is the utility model embodiment 1, and pipe pressurized tapping machine specifically comprises housing 1, main shaft 2, mandrel 3, bevel gear 4, pinion stand 5, bevel gear 6, end cap 8, driving gear 10, driven gear 12, drilling tool 13, stop collar 14, carrier gear 16, swing arm 15, bearing pin 17, bearing cap 27, sealing ring 28, gland 29, block 32, limited block 34, feed nut 35, support ring 36, baffle plate 37 among this embodiment.
Housing 1 is a sleeve-like configuration; It is provided with one and runs through its through hole up and down; Housing 1 lower end has the ring flange perpendicular with its through-bore axis; This ring flange is used for and is fixed on the pipe clamp of treating on the perforate pipeline 30 and is connected, and the composition surface of ring flange is provided with the sealing ring mounting groove, is provided with sealing ring 23 in the groove.Through hole on the housing 1 is the stepped hole that comprises a big footpath section and a path section; The bearing 19 and bearing 24 rotatable are inserted in the big footpath section of through hole housing 1 on of main shaft 2 through being provided with at interval; And with housing 1 axial restraint; Wherein, bearing 19 is pressed solidly in the through hole on housing 1 by end cap 8, and 8 upper ends through screw and housing 1 of end cap fix.Bevel gear 4 is sleeved on main shaft 2 on two bearings 19, axle body between 24; And it is circumferentially fixing through flat key 9 and main shaft 2; 6 of bevel gears of matching with bevel gear 4 are installed in the installing hole that is provided with on housing 1 sidewall through pinion stand 5; Bevel gear 6 carries a back shaft, and is fitted in the pinion stand 5 through this bolster is rotatable, and the outer end that back shaft stretches out pinion stand 5 has the syndeton that confession links to each other with external driver device or operating grip (not shown).
Main shaft 2 is a hollow shaft, and it is protruding that end cap 8 back is passed in its upper end, and the sidewall of its extension is provided with and runs through it radially and along its axially extended slotted hole, simultaneously, also is provided with screw thread on the outer surface at position, slotted hole place.
Mandrel 3 can slide vertically and be fitted in the centre bore of main shaft 2, and stretch out downwards after passing the ring flange of housing 1 lower end mandrel 3 lower ends, and the drilling tool 13 of known structure is installed on external part.Be disposed with gland 29, sealing ring 28, bearing cap 27, bearing 26 and end ring 25 between the path section of the through hole on mandrel 3 and the housing 1 from top to bottom; Wherein end ring 25 is installed in the mounting groove that is provided with on the housing 1; Be threaded between 29 on gland and housing 1 through hole, and axially limit and housing 1 through hole lower ending opening is sealed through 28 pairs of bearings 26 of crush seal circle.On the mandrel 3 near its upper end be provided with one with main shaft 2 stretch out the corresponding radial direction through hole of slotted hole on housing 1 partial sidewall; The slotted hole and the through-hole mounting on the mandrel 3 that radially run through on the main shaft 2 have a limited block 34; Make mandrel 3 and main shaft 2 circumferentially fixing through this limited block 34, and can in the slotted hole length range on the main shaft 2, move axially simultaneously.Limited block 34 fixes through screw and the mandrel 3 that is provided with on mandrel 3 upper surfaces.Main shaft 2 upper ends also are fixed with a baffle plate 37 simultaneously, and through baffle plate 37 is set, it is up when feed nut 35 is up, to drive mandrel 3.
Suit driving gear 10, driven gear 12 successively on 2 on main shaft slotted hole and the axle body between the end cap 8 on it, and axially limit back-up ring 21, driven gear 12 rotatable being contained on the main shaft 2, driving gear 10 is circumferentially fixed itself and main shaft 2 by flat key 22.Carrier gear 16 has two gears, and these two gears interfix into dumb-bell shape integral body through intermediate connecting rod.Carrier gear 16 is installed in the buckling groove 1503 of swing arm 15 through connecting rod between wherein, and swing arm 15 is through pin shaft hole 1504 and bearing pin 17 rotatable being installed on the end cap 8.Swing arm 15 is provided with the brake pad 1502 that rubs with driven gear 12 outer circumference surfaces in the face of an end end of main shaft 2 one side surfaces, and other end end is provided with handle 1501, and the draw-in groove 1503 that clamps carrier gear 16 is located between handle 1501 and the pin shaft hole 1504.Through control crank 1501 near main shaft 2 or away from main shaft 2; Make the carrier gear 16 on it be meshed or be separated with driving gear 10 and driven gear 12; Simultaneously, can also let in the swing arm 15 brake pad 1502 engage friction with driven gear 12 outer circumference surfaces stops driven gear 12 to rotate.
Bearing pin 17 is installed in the screwed hole on the end cap 8 through screw thread, or is inserted in the smooth installing hole that is provided with on the end cap 8.
Driven gear 12 step circle are provided with screw 1201; Borehole jack is contained on the step circle of driven gear 12 and is fixed by screw in the lower end of stop collar 14; Stop collar 14 upper ends are rotatable to be sleeved on the support ring 36, and support ring 36 is sleeved on the main shaft 2 end step circle and by the back-up ring axial limiting.Axially have slotted hole on stop collar 14 sidewalls.
Feed nut 35 is threaded on the main shaft 2 of limited block 34 top baffle plates 37 belows; Can move up and down along main shaft 2 along with rotating feed nut 35; And when moving down, the limited block 34 that is positioned at its below through pushing together moves down the drilling tool 13 of mandrel 3 and lower end thereof.
Feed nut 35 is provided with the block 32 that radially extends; This block 32 is inserted in the slotted hole that is provided with on the stop collar 14; And be complementary like this with the slotted hole circumferential size, like this, when stop collar 14 when main shaft 2 rotates; Slotted hole on it can drive feed nut 35 through pushing tow block 32 and together rotate around main shaft 2, and feed nut 35 is moved up and down along main shaft 2.
The purpose that bevel gear 4, bevel gear 6 are set is external impetus to be incorporated into drive its rotation on the main shaft 2; It then is for driving force further is incorporated on the mandrel 3 that limited block 34 is set between main shaft 2 and mandrel 3; And finally drive the drilling operation that drilling tool 13 is accomplished pipeline through mandrel 3; Reach under the prerequisite of this purpose in assurance; Except shown in Figure 1 the version that a limited block 34 is set, 1. also can a plurality of limited blocks 34 and corresponding a plurality of slotted hole be set along the length direction of main shaft 2 and mandrel 3, can make stressed balanced more when transmitting moment of torsion of main shaft 2 and mandrel 3 like this; 2. the transmission mechanism that many groups are made up of two bevel gears can be set between main shaft 2 and housing 1; Organize transmission mechanism more and then can take different gearratios respectively; But also can both be provided with the transmission mechanism that motor drives, be provided with not only but also hand-driven transmission mechanism.
Setting is when 13 pairs of pipelines of drilling tool are holed by the purpose of the driving mechanism that driving gear 10, driven gear 12, stop collar 14, carrier gear 16, feed nut 35 constitute; Realize the autofeed of drilling tool; For this reason; Main shaft 2 is when state shown in Figure 2 clockwise rotates and drives drilling tool 13 and holes; Feed nut 35 both relatively main shaft 2 clockwise rotate, also main shaft 2 rotates counterclockwise relatively, gets final product so long as move down and promote drilling tools 13 feeds through limited block 34, mandrel 3 along main shaft 2.It should be noted that when feed nut 35 relative main shafts 2 to clockwise rotate when realizing moving down that the rotating speed that driven gear 12 is described is greater than driving gear 10; At this moment; The screw thread of feed nut 35 should be dextrorotation, and rotates counterclockwise when realizing moving down when feed nut 35 relative main shafts 2, and the rotation that driven gear 12 then is described is less than driving gear 10; At this moment, the screw thread of feed nut 35 should be left-handed.
Because stop collar 14 drives feed nut 35 work that promote by driven gear 12; Therefore; Can change the downstream rate of feed nut 35 through changing from driving gear 10 to driven gear 12 gearratio, so as to make drilling tool 13 in boring procedure by suitable speed autofeed.
In the embodiment shown in Figure 1; Carrier gear 16 is arranged in the swing arm 15; And the rotation that utilizes swing arm 15 has and driving gear 10, the driven gear 12 two kinds of duties that are meshed and are separated carrier gear 16; The purpose that is provided with like this is: at the state of being meshed, make drilling tool 13 when carrying out drilling operation, realize autofeed; In phase-separated state; Through backward rotation main shaft 2; Make that the outer circumference surface of brake pad and driven gear 12 step circle 1202 is frictionally engaged in the swing arm 15; Stops driven gear 12 and stop collar 14 with main shaft 2 backward rotation together, and realize that the automatic fast uplink of feed nut 35 resets, but the precondition of this moment is: main shaft 2 state shown in Figure 2 clockwise rotate drive drilling tool 13 and hole in; Feed nut 35 main shaft 2 relatively rotates counterclockwise and moves down, and the screw thread of feed nut 35 can only be left-handed.
Except carrier gear 16 is set in a manner described; Also can carrier gear 16 be fixedly installed on the end cap 8 through bearing; And make it remain the engagement with driving gear 10 and driven gear 12; Like this, behind the drilling operation of accomplishing pipeline, backward rotation main shaft 2 can make feed nut 35 move up automatically to reset.
When stating pipe pressurized tapping machine in the use pipeline being carried out perforate; At first; Ring flange through housing 1 lower end is fixed on whole tapping machine on the mating interface that is provided with on the pipe clamp 30, opens the inside valve plate at pipe clamp 30 mating interface places then, accomplishes the preceding preparation of perforate.
Before the perforate, remove swing arm 15, carrier gear 16 is snapped fitted on the draw-in groove of swing arm 15; During perforate,, swing arm 15 to the pushing of main shaft 2 directions, is made carrier gear 16 and driving gear 10 and driven gear 12 positive engagement, realize the transmission of power between driving gear 10 and the driven gear 12 when external power drive main shaft rotates.It is to be noted; The rotating speed of the driven gear 12 in this embodiment is less than the rotating speed of driving gear 10; Stop collar 14 contrary main shaft 2 rotation directions that are fixed on the driven gear 12 are rotated around main shaft 2; In the process of relatively rotating, the block 32 on the slotted hole pushing tow feed nut 35 on the stop collar 14 forces feed nut 35 around main shaft 2 counter-rotatings; Feed nut 35 rotates on main shaft 2 and axially movable limited block 34, mandrel 3 and the drilling tool 13 of pushing simultaneously moves down, and realizes the autofeed of drilling tool 13.
After perforate is accomplished, remove swing arm 15, the carrier gear 16 in the swing arm 15 is removed with swing arm 15 and is separated with driving gear 10 with driven gear 12, and at this moment, driven gear 12 and driving gear 10 are with the speed rotation, and mandrel 3 is neither descending, and is also not up.This shows, in the perforate process, as long as an end that clamps carrier gear 16 in the control swing arm 15 whether to main shaft 2 pressuring directions, just can be controlled the autofeed of drilling tool 13 and stop feed.
If want drilling tool 13 rapid returns; Backward rotation main shaft 2 further laterally rotates swing arm 15, makes the brake pad 1502 on swing arm 15 other ends engage friction with driven tooth outer circumference surface 1202; Stop driven gear 12 to rotate with main shaft; Stop collar 14 slotted hole sidewalls also stop feed nut 35 to rotate with main shaft through block 32, and feed this moment nut 35 relative main shaft 2 backward rotation also move up fast, realize that fast uplink resets.
In the delivering gear of the foregoing description, the purpose that driving gear 10, carrier gear 16, driven gear 12 are set is that main shaft 2 rotational powers are passed to stop collar 14, orders about it by required rotational speed; For this purpose; The transmission mechanism that wherein is made up of driving gear 10, carrier gear 16, driven gear 12 also can be replaced by other suitable transmission mechanisms, like chain-drive mechanism, or belt gear; Or slip gear, or the like.
Driven gear 12 orders about feed nut 35 through the stop collar 14 that fixes with it and rotates together with one of which; Rotate in order to drive feed nut 35; Driving lever or the shift fork that extreme direction extends on main shaft 2 also can be set on the driven gear 12 replace stop collar 14; As long as and the structure of driving lever or shift fork can make the feed nut 35 can be with one of which with rotating, and can be when rotating axially move up and down and get final product along main shaft 2.
Embodiment 2
As shown in Figure 6; In the pipe pressurized tapping machine embodiment 2 of the utility model; First, second two groups of transmission mechanisms are set between main shaft 2 and the housing 1, and wherein first group of transmission mechanism is made up of a bevel gear 4 and a bevel gear 6, and second group of transmission mechanism is made up of a bevel gear 4 and two bevel gears 6; Two bevel gears 6 are along bevel gear 4 arranged in radial symmetry, and the outer end of bevel gear 6 has the syndeton that matches with operating grip 44.
During use, both can external driver device and first group of transmission mechanism be fetched driving main shaft 2 work mutually, two operating grips 44 that also can hand control link to each other with second group of transmission mechanism come driving main shaft 2 to work.
Embodiment 3
In the embodiment 3 of Fig. 7-shown in Figure 10; Shown in figure; Main shaft 2 step circle 201 are provided with spline; With rotatable suit bevel gear 4 and worm gear 39 on the neighbouring shaft part of step circle 201, bevel gear 4 is faced step circle 201 1 ends with worm gear 39 and is respectively equipped with the step circle 401,3901 identical with step circle 201 external diameters, is provided with the identical spline of step circle 201 upper spline grooves on the step circle 401,3901 equally; Spline housing 38 is fitted on step circle 201 splines through lining Kong Huajian and also can moves up and down with main shaft 2 is circumferentially fixing; The keyway socket is circumferentially fixing with bevel gear 4 and main shaft when moving on the spline housing 38 and on bevel gear 4 step circle 401, with keyway socket on worm gear 39 step circle 3901 worm gear 39 and main shaft circumferentially fixed when spline housing 38 moves down; Stirring ring 41 rotatable being sleeved on the spline housing 38 and with spline housing 38 axially limits; Stir ring 41 and be provided with the driving lever 42 that extends radially out the housing 1 sidewall through hole outside; Stir driving lever 42 spline housing 38 is moved up and down, realize between worm gear 39 and bevel gear 4, switching to main shaft transferring power approach.As shown in Figure 9, the worm screw 40 that is provided with on worm gear 39 and the housing 1 is matched and constitutes one group of transmission mechanism, the bevel gear 6 that is provided with on 4 of bevel gears and the housing 1 one group of transmission mechanism of formation that matches.The outer end that worm screw 40 stretches out housing 1 links to each other with external driver device, and the outer end of bevel gear 6 then links to each other with operating grip 44.
During use, at state shown in Figure 7, move on the spline housing 38 gear 4 and main shaft 2 are circumferentially fixed, hand control this moment operating grip 44 gets final product driving main shaft 2 rotation works; Spline housing 38 awls move down worm gear 39 and main shaft 2 circumferentially fixing, and bevel gear 4 and main shaft 2 are separated, and external driver device is through worm screw 40 driving main shaft 2 rotation works.
Above-mentioned each embodiment just is used to explain the utility model, and in addition, those skilled in the art also can make various embodiment after comprehension the utility model thought, and these embodiments all should be within the protection domain of the utility model.

Claims (18)

1. a pipe pressurized tapping machine is characterized in that, this tapping machine mainly comprises housing, main shaft, mandrel, drilling tool, transmission mechanism, delivering gear; The main shaft bottom is installed in the housing through bearing is rotatable, and stretch out from housing on main shaft top; Main shaft is a hollow shaft, and mandrel slidably is fitted in the centre bore of main shaft, and circumferentially fixing with main shaft; Lower housing portion is provided with and supplies and outside airtight connection structure connecting, and the mandrel lower end passes from the via hole of the syndeton setting of lower housing portion, is sealed by hermetically-sealed construction between via hole hole wall and the mandrel, and drilling tool is fixed on the mandrel lower end; Transmission mechanism is arranged between the bottom and housing sidewall of main shaft in housing, and transmission mechanism is outside equipped with power intake at housing, and external impetus rotates through the transmission mechanism driving main shaft; Delivering gear comprises driving wheel, driven pulley, intermediate transmission mechanism, feed nut; Driving wheel is sleeved on the main shaft upper axis and circumferentially fixes on one's body and with main shaft, and driven pulley turns on the main shaft axle body that is sleeved on the driving wheel top, and main shaft top axle body has external screw thread; The feed nut thread is connected on one's body the main shaft upper axis; Be provided with linkage on the driven pulley and between the feed nut, the driving wheel that rotates with main shaft rotates around main shaft by required rotating speed through intermediate transmission mechanism driving driven pulley, simultaneously; Driven pulley then orders about the feed nut through the linkage on it and rotates around main shaft together with one of which, and makes the feed nut along main axle moving thus; Along with drilling tool boring, the feed nut moves down along main shaft, and moves down through the pushing tow mandrel and to make the drilling tool autofeed; For this reason; Be provided with the limited block that extends radially out main shaft on the mandrel or near its upper end, and the main shaft axle body is provided with and supplies axially movable slotted hole of this limited block or elongated slot.
2. tapping machine as claimed in claim 1; It is characterized in that; Said driving wheel and said driven pulley are made up of driving gear and driven gear respectively; Said intermediate transmission mechanism is made up of carrier gear, has two mutual coaxial gears that are meshed with said driving gear and said driven gear of fixing and be respectively applied on this carrier gear.
3. tapping machine as claimed in claim 2; It is characterized in that said linkage is driving lever or shift fork, this driving lever or shift fork lower end and said driven gear fix; Upper end extreme direction on said main shaft extends; Radially be extended with the block that said driving lever or shift fork engage on the said feed nut, driving lever or shift fork allow this block to move up and down along driving lever or shift fork self stirring the rotation of feed nut through this block when.
4. tapping machine as claimed in claim 2; It is characterized in that said linkage is made up of a stop collar, this stop collar is sleeved on the outside of said main shaft and said feed nut; Its lower end and driven gear fix; The upper end is rotatable to be supported on the support ring that is provided with on the main shaft axle body of feed nut top, and the feed nut is provided with the block that radially extends, and the stop collar sidewall is provided with slotted hole or the elongated slot that supplies said block to insert, circumferentially match and allow block to move up and down with block.
5. tapping machine as claimed in claim 4 is characterized in that, said housing top is provided with end cap, has the through hole that supplies said main shaft to pass and stretch out on this end cap, and the said driving gear that is sleeved on the main shaft is supported on this end cap.
6. tapping machine as claimed in claim 4 is characterized in that, said slotted hole or elongated slot on said limited block and the said main shaft circumferentially match, and makes said mandrel and main shaft circumferentially fixing thus.
7. tapping machine as claimed in claim 4 is characterized in that, when said main shaft rotated along said drilling tool boring direction, said feed nut rotated relative to main shaft round about, realized the autofeed of drilling tool.
8. tapping machine as claimed in claim 4 is characterized in that, is sealed by sealing ring or sealing ring between the said via hole hole wall of said lower housing portion and the said mandrel.
9. tapping machine as claimed in claim 4 is characterized in that, the said syndeton of said lower housing portion is a ring flange.
10. tapping machine as claimed in claim 4 is characterized in that, also is provided with in the said via hole of said lower housing portion to be used for bearing that the said mandrel that passes is supported, and said sealing ring or sealing ring are arranged on the axial outside of this bearing.
11. tapping machine as claimed in claim 4 is characterized in that, on one's body the lower shaft of said main shaft in said housing, is provided with some groups of said transmission mechanisms vertically, each transmission mechanism all has the power intake that joins with external driver device.
12. tapping machine as claimed in claim 4; It is characterized in that; Said transmission mechanism is made up of worm and gear, and wherein, worm gear set is contained in lower shaft that said main shaft is positioned at said housing and circumferentially fixing with main shaft on one's body; Worm screw is supported on the housing sidewall, and worm screw stretches out housing sidewall one end and has the syndeton of joining with external driver device.
13. tapping machine as claimed in claim 4; It is characterized in that; Said transmission mechanism is made up of bevel-gear sett, and one of them bevel gear is sleeved on lower shaft that said main shaft is positioned at said housing and circumferentially fixing with main shaft on one's body, and another bevel gear is supported on the housing sidewall; This bevel gear goes up and coaxially to be fixed with one and to stretch out the axostylus axostyle of housing sidewall, and this axostylus axostyle outer end has the syndeton of joining with external driver device.
14. tapping machine as claimed in claim 4; It is characterized in that; Said carrier gear is installed on the end cap on said housing top through swing arm; This swing arm is around the bearing pin parallel with said main shaft swing, and through near the major axes orientation swing or to away from the major axes orientation swing, and make carrier gear be meshed or be separated with said driving gear and said driven gear.
15. tapping machine as claimed in claim 14; It is characterized in that; The pin shaft hole of said swing arm is located at the middle part of swing arm; Swing arm supplies the brake pad that rubs mutually with said driven gear outer circumference surface in the face of an end of said main shaft one side surface is provided with, the other end is provided with handle, between handle and pin shaft hole, also is provided with the draw-in groove that is used to clamp said carrier gear on this side surface; Through control crank to moving near major axes orientation or away from major axes orientation; Realize that carrier gear is meshed or is separated with said driving gear and said driven gear, and after carrier gear and driving gear and driven gear are separated, said brake pad is engaged with the driven gear outer circumference surface rub and stop its rotation.
16. tapping machine as claimed in claim 15 is characterized in that, also be provided with on the said driven gear be used for said swing arm on said brake pad engage the friction step circle.
17. tapping machine as claimed in claim 1 is characterized in that, said driving wheel, said driven pulley constitute by friction pulley, and said intermediate transmission mechanism is made up of slip gear.
18. tapping machine as claimed in claim 1 is characterized in that, said driving wheel, driven pulley are made up of belt pulley or sprocket wheel, and said intermediate transmission mechanism is made up of belt gear or chain-drive mechanism.
CN2011205017176U 2011-12-06 2011-12-06 Pipeline hot tapping machine Expired - Lifetime CN202336605U (en)

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Application Number Priority Date Filing Date Title
CN2011205017176U CN202336605U (en) 2011-12-06 2011-12-06 Pipeline hot tapping machine

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489742A (en) * 2011-12-06 2012-06-13 宋战修 Pressure pipeline tapping machine
CN103286345A (en) * 2013-05-31 2013-09-11 李克 Pipeline pressure tapping machine and application method
CN109926619A (en) * 2019-04-10 2019-06-25 安徽同发设备股份有限公司 A kind of gear box device adjusting the speed tapping machine
CN110962186A (en) * 2019-11-29 2020-04-07 安徽金昊天塑胶科技发展有限公司 Plastic pipe tapping machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102489742A (en) * 2011-12-06 2012-06-13 宋战修 Pressure pipeline tapping machine
CN102489742B (en) * 2011-12-06 2014-09-10 宋战修 Pressure pipeline tapping machine
CN103286345A (en) * 2013-05-31 2013-09-11 李克 Pipeline pressure tapping machine and application method
CN109926619A (en) * 2019-04-10 2019-06-25 安徽同发设备股份有限公司 A kind of gear box device adjusting the speed tapping machine
CN110962186A (en) * 2019-11-29 2020-04-07 安徽金昊天塑胶科技发展有限公司 Plastic pipe tapping machine

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