CN2159277Y

CN2159277Y - Portable electric threader

Info

Publication number: CN2159277Y
Application number: CN 93238994
Authority: CN
Inventors: 周光力
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-14
Filing date: 1993-07-14
Publication date: 1994-03-23
Anticipated expiration: 2003-07-14

Abstract

The utility model provides a portable electric threading machine, which comprises a machine body, a motor, a threading spanner chain wheel, a variable speed system, a clamping chuck, a slide transmission system, a pipe cutting device, a pipe centering disk and a self fuel-filling system. The utility model can be used for centering, threading and pipe cutting without limitation of working environment, and can be carried and operated by one person.

Description

Portable electric threader

The utility model is that a kind of being used for relates in particular to hand electric mantle fiber instrument to various metallic conduit pipe processing external screw threads and the light-weight electric instrument that cuts off pipe.

To the processing and the cut-out of gas pipe thread, generally adopt manual screw die instrument and manual cutter instrument in the prior art, its advantage is easy to carry, flexible operation, and shortcoming is that efficient is low, labour intensity is big.Existing hand electric mantle fiber instrument, can be divided into two classes, one class is to improve on the basis of manual bolt die instrument, as Chinese patent CN87202766U, its advantage is the shortcoming that has overcome manual bolt die instrument, but still having weak point is employing standard pipe bolt die, need change bolt die during processing all size pipe, can not cut off pipe simultaneously; Another kind of is the multifunctional motor-driven die head threading machine of redesign, as Chinese patent CN89205952.4, but its advantage many pipe cuttings that are function, mantle fiber, adapter etc., shortcoming is that structure is complicated, parts are many, because the rotation of processed pipe, processing environment are restricted etc.

But but the purpose of this utility model is a kind of not only a mantle fiber but also Pipe Cutting of design, and the mantle fiber bolt die is adjustable, interchangeable, and processed pipe does not rotate, and is in light weight, simple in structure, portable electric pipe threading machine.

The utility model comprises that body, motor, mantle fiber bolt die dish, speed change system, expansion chuck, slip transmission system, pipe cutting knife device, pipe are decided mid-game and from fuel loading system.Motor is fixed on the body, and speed change system is arranged in the body, and mantle fiber bolt die dish is at an end of body, and expansion chuck is fixed on the other end of body.The slip transmission system is arranged in the body, meshes together with speed change system, and mantle fiber bolt die dish is fixedly connected on the slip transmission system, and pipe cutting knife device, pipe are decided mid-game, are arranged on the mantle fiber bolt die dish from fuel loading system.Body is the skeleton of whole device.Motor is electrically connected the power as whole device with the city.Speed change system can be selected gear, worm gear or gear-worm gear reducer for use, and speed change system of the present utility model selects for use the single-stage worm gear reducer can satisfy the needs of mantle fiber bolt die dish to rotating speed.Mantle fiber bolt die dish and manual bolt die tool construction are similar, repeat no more herein.Expansion chuck is similar to the chuck of engine lathe, the also chuck structure that can select for use common electric pipe threading machine to adopt, promptly be interlocked with the ridge that clamps on the card base with the screw thread that clamps on the helical disk, rotating clip tight-spiral dish, can make the clamping card base inside and outside mobile, thereby reach the purpose of clamping tube.The main effect of slip transmission system is that the power that speed change system is transmitted transmits and the tap chain wheel again, make mantle fiber bolt die dish advance to final position simultaneously from the rotation of initial manufacture position, and can return initial position smoothly from final position, what select for use usually is the tooth bar guide rail mechanism.The structural principle of pipe cutting knife device and manual cutting knife instrument are similar, i.e. the degree of depth of regulating the each feed of cutting edge with screwed cutting knife hand axle.Pipe is decided mid-game and is made of parts such as deciding mid-game, fixed middle helical disk, fixed middle card base and jump ring circle, card base embeds and decides in the groove of mid-game in fixed, helical disk is enclosed within and decides in the mid-game in fixed, regulate the handle of fixed middle helical disk, the tightness that card base contacts with pipe in can regulating surely, the assurance pipe is stable in process not to be rocked, and especially plays middle surely effect when the cutting pipe.Rotating with mantle fiber bolt die dish from fuel loading system, is the oil box that a bottom has oil-out, comes the opening and closing of fault oil-out with thimble.When the oil box oil-out was opened, oil box was rotated in pipe top, oil-out down, oil flows out automatically by gravity and drips on bolt die or the cutting knife; Below oil box rotated to pipe, oil-out stopped to refuel up automatically.

Slip transmission system of the present utility model comprises drive sleeve and two slip caps of a band keyway.The transmission of power of speed change system is to realize like this, the output gear of speed change system or worm gear central shaft hole have keyway, also have corresponding keyway on the drive sleeve, key is a tight fit with cooperating of gear or worm gear keyway, and cooperating with keyway on the drive sleeve is movingly.Keyway length on the drive sleeve is longer than key length, and therefore when gear or worm gear rotation, the key on gear or the worm gear then slides in the keyway on drive sleeve, and drive sleeve is rotated thereupon.Drive sleeve with decide mid-game and be fixed together, decide mid-game and be fixed together with mantle fiber bolt die dish again, therefore, the rotation of gear or worm gear has just passed to mantle fiber bolt die dish.When mantle fiber carried out, mantle fiber bolt die dish also will move axially, and moving of this moment also finished by the keyway of drive sleeve.Two slip caps are installed in the both sides of gear or worm gear respectively, are used for preventing the axial float of gear or worm gear.The drive system structure of this structure is simple, and part is few, and is easy to process, the reliable transmission of sliding simultaneously.

During mantle fiber, pipe penetrated suitable length from mantle fiber bolt die dish after, adjust the card base of deciding mid-game earlier and contact with tube wall, screw expansion chuck again and block pipe and make its non-slip in process, rotation.Behind the actuating motor, the operator can be to mantle fiber bolt die dish thrust a little, makes bolt die go into behind the button mantle fiber automatically.In the mantle fiber process, the operator opens the oil box thimble valve from fuel loading system, and oil box cools off and lubricates on bolt die and pipe with automatic oil dripping in the mantle fiber bolt die disc spins process.After the pipe completion of processing, close the oil box thimble valve, unclamp mantle fiber bolt die dish, expansion chuck and pipe successively and decide mid-game, can take out the finished product pipe that processes screw thread.

During Pipe Cutting, pipe is penetrated from mantle fiber bolt die dish, behind the position to good pipe cutting knife device, adjusting the card base of deciding mid-game earlier contacts with tube wall, screw expansion chuck again and block pipe, the bolt die that unclamps mantle fiber bolt die dish simultaneously makes it not contact with pipe, in mantle fiber bolt die disc spins process, pipe cutting knife device is rotation thereupon also, regulates the cutting knife hand axle of pipe cutting knife device gradually with hand, and cutting edge then cuts pipe from the superficial to the deep, until cut-out, after closing motor, unclamp pipe successively and decide mid-game and expansion chuck, can carry out Pipe Cutting work next time again.

The utility model compact overall structure, (only about 8 kilograms) in light weight, annex can be convenient to a people and be carried operation without other aids except that pipe bolt die and blade.The utlity model has pipe fixed in, mantle fiber, Pipe Cutting, multiple functions such as oiling, spacing shutdown certainly.

The utility model also has an important characteristic to be: mantle fiber bolt die disc spins, and pipe does not change.Therefore the utility model is highly suitable for working under a people is narrow in the place or pipe can not rotate the working environment.

The utility model will be further described below in conjunction with accompanying drawing.

Fig. 1 is that the positive optical axis of the utility model is surveyed schematic diagram

Fig. 2 is the utility model front view

Fig. 3 is that the utility model axle is surveyed part cooperation schematic diagram

Fig. 4 is the utility model assembling schematic diagram

Wherein (1) is body; (2) be motor; (3) be mantle fiber bolt die dish; (4) be speed change system; (5) be expansion chuck; (6) be the slip transmission system; (7) be pipe cutting knife device; (8) be that pipe is decided mid-game; (9) be from fuel loading system; (10) be the bolt die dish; (11) be steel ball; (12) be spring; (13) be top spring screw; (14) be the bolt die handle; (15) be Handle axis; (16) be to adjust handle; (17) be the bolt die helical disk; (18) be centring ring; (19) be the little axle of cutting knife; (20) be cutting edge; (21) be blade holder; (22) be the hand pedestal; (23) be cutting knife hand axle; (24) be middle surely card base; (25) be to decide mid-game; (26) be middle surely helical disk; (27) be the jump ring circle; (28) be front housing; (29) be worm gear; (30) be drive sleeve; (31) left slip cap; (32) be right slip cap; (33) be oil box; (34) be the thimble spring; (35) be thimble; (36) be limit switch; (37) be back cabinet; (38) be bearing block; (39) be bearing; (40) be worm screw; (41) be the worm screw seat; (42) be carrying handle; (43) be fixed cover; (44) be neck bush; (45) be chuck; (46) be to clamp helical disk; (47) be antiskid claw; (48) be to clamp card base; (49) be to end the head pin; (50) be top spring screw; (51) be to end head pin spring; (52) be dive key.

An embodiment of the present utility model is as follows: body (1) constitutes the aluminium alloy material by front housing (28), back cabinet (37).Speed change system (4) is made of worm gear (29), worm screw (40), bearing (39), bearing block (38) and worm screw seat (41), worm screw (41) material selection Fine Steel Casting iron, worm gear (29) is used the tin bronze material, axle bed holds the material of (38) and worm screw seat (41) and all uses aluminium alloy, from Fig. 3, can know and find out, the two ends of worm screw (40) axle are set with upper bearing (metal) (39), bearing (39) is packed in the bearing block (38), bearing block (38) is assemblied on the worm screw seat (41), and worm screw seat (41) is fixedly connected with bolt and back cabinet (37).Worm gear (29) is meshed with worm screw (40) in back cabinet (37).Motor (2) is screwed on the worm screw seat (41) that fuses with back cabinet (37), and motor (2) output shaft links to each other with worm screw (40) axle.The power of motor (2) is 1000W, is suitable for the following metal tube mantle fiber of caliber 50mm.Slip transmission system (6) is made of drive sleeve (30) and left and right slip cap (31,32), and its material all can be selected tin bronze or nylon for use.Drive sleeve (30) is inserted in the mating holes of back cabinet (37), right slip cap (32) is inserted in earlier on the drive sleeve (30), be inserted in worm gear (29) and left slip cap (31) more successively, the dive key (52) on the worm gear (29) should be aimed in the keyway that is inserted in drive sleeve (30).Pipe is decided mid-game (8) by deciding middle card base (24), decide mid-game (25), deciding middle helical disk (26) and jump ring circle (27) formation, decide the material selection aluminium alloy of mid-game (25), the material Fine Steel Casting iron of card base (24) and fixed middle helical disk in fixed, the material carbon spring steel of jump ring circle (27).Decide mid-game (25) and pass front housing (28), enter back cabinet (37), be linked together with screw and drive sleeve (30), fixed middle card base (24) embedding is decided in the mating groove of mid-game (25), screw thread on the fixed middle helical disk (26) and the threaded engagement of deciding on the middle card base (24).Handle in moving surely on the helical disk (26), then can make surely in card base (24) tighten or unclamp pipe.Mantle fiber bolt die chuck (3) is made of bolt die dish (10), bolt die handle (14), adjustment handle (16), bolt die helical disk (17), centring ring parts such as (18), and these parts are assembled into an integral body, constitute mantle fiber bolt die dish (3).Bolt die dish (10) and decide mid-game (25) with screw attachment together, like this, mantle fiber bolt die dish (3) just can obtain the transmission that drive sleeve (30) is transmitted by deciding mid-game (25).When motor (2) rotates, the bolt die handle (14) that closes, then mantle fiber bolt die dish (3) also rotates thereupon.The rotating speed of present embodiment mantle fiber bolt die dish (3) is designed to n=21 rev/min.Pipe cutting knife device (7) is assemblied on the space of bolt die dish (10) by blade holder (21), cutting edge (20), hand pedestal (22), cutting knife hand axle (23), the little axle of cutting knife formations such as (19).Constitute by oil box (33), thimble spring (34), thimble (35) from fuel loading system (9), be assemblied on the bolt die dish (10).Expansion chuck (5) is made of fixed cover (43), neck bush (44), chuck (45), clamping helical disk (46), antiskid claw (47), clamping card base parts such as (48), fixed cover (43), neck bush (44) and chuck (45) are integral with Bolt Connection, are fixed on the back cabinet (37).Clamp in the respective slide slots of card base (48) embedding chuck (45) screw thread on it and the threaded engagement that clamps on the helical disk (46).Carrying handle (42) is fixed on the worm screw seat (41), and limit switch (36) is fixed on the front housing (28).

Fig. 2 is appointed as the utility model specification digest accompanying drawing

Claims

1, a kind of portable electric die head threading machine, comprise body (1), motor (2), tap chain wheel (3), speed change system (4), expansion chuck (5), motor (2) is fixed on the body (1), speed change system (4) is arranged in the body (1), tap chain wheel (3) is at an end of body (1), expansion chuck (5) is fixed on the other end of body (1), it is characterized in that this die head threading machine also comprises slip transmission system (6), pipe cutting knife device (7), pipe is decided mid-game (8), from fuel loading system (9), slip transmission system (6) is arranged in the body (1), mesh together with speed change system (4), tap chain wheel (3) is fixedly connected on the slip transmission system (6), pipe cutting knife device (7), pipe is decided mid-game (8), be arranged on the tap chain wheel (3) from fuel loading system (9).

2, die head threading machine as claimed in claim 1, the transmission system (6) that it is characterized in that sliding comprises drive sleeve (3) and two slip caps (31,32) of a band keyway.