CN2642442Y

CN2642442Y - Automatic plate outside pipe cutter

Info

Publication number: CN2642442Y
Application number: CN 03221751
Authority: CN
Inventors: 王玮
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-05-09
Filing date: 2003-05-09
Publication date: 2004-09-22
Anticipated expiration: 2013-05-09

Abstract

The utility model relates to an automatic plate external tube cutter which comprises a centering shaft (1), a locating sleeve (2), a screw (3), a tool bit (4), a tool rod (5), a bearing sleeve (6), a pin (7), a bearing (8), spring a (9), an outer sleeve (10), spring b (11), a press shaft (12), a locking screw (13), a draw ring (14), a main shaft (15) and a connecting shaft (16). The tool bit (4) is fixed on the fore end of the tool rod (5) with the screw (3). The main shaft (15) is arranged with a groove fitted with the tool rod (5) and the tool rod (15) is fitted in the main shaft (15) with the pin (7). The utility model is characterized in that: the locating sleeve (2) is fitted over the centering shaft (1) arranged at the fore end of the main shaft (15); the press shaft (12) is arranged in a circular hole at the rear end of the main shaft (15). The fore end of the press shaft is a wedge body connected with the tool rod (5). A circular hole is arranged forward at the rear end of the press shaft and the spring b (11) is arranged in the circular hole. The connecting shaft (16) is pressed on the rear end of the spring b (11). The draw ring (14) is fitted over an L-shaped notch on the rear end of the main shaft (15) and fixed on the press shaft (12) with the locking screw (13).

Description

The outer casing knife of automatic plate

Technical field: the utility model relates to a kind of utility of installation, maintenance heat exchange container pipeline, exactly is the outer casing knife of a kind of automatic plate.

Background technology: the pipeline installation, maintenance in the existing present heat exchange container needs the staff to enter in the container, change with new pipe with the sawed-off taking-up of metal tube that electronic abrasive cutoff saw or coping saw will be changed, so not only labour intensity is big, and time-consuming and poor stability, noise are big.I am in the Chinese patent ZL95211047.4 of application on May 16 nineteen ninety-five, disclosed the utility model patent of a kind of quick inner pipe cutter by name, its technical scheme is by cutter hub, rotating mechanism and be placed in its outer overcoat that is encapsulated in terminal surface by bearing cap and form, it is characterized in that: described cutter hub is by playing a knife bar, being loaded on the return spring in the knife bar end bottom circular aperture and being made up of the cutter head of fastening its front end of screw; Described rotating mechanism is made up of axis, return spring, depression bar cover and apical axis, axis has and the groove that plays the knife bar coupling, bearing, depression bar cover are placed in the rear portion, have a circular hole forward from terminal surface, adorn a return spring in it, the apical axis roof pressure is in the return spring end, and dog screw passes the depression bar cover, axis is fixed on the apical axis; Its endoporus of overcoat that is drum shape is two cylinders of pre-small post-large same central shaft, front end be with outward a swivel nut and with the locking nut of its coupling.Its advantage is to need not the staff to enter operation Pipe Cutting in the container, and safe and reliable, noise is little; Because be to adopt electronic cutting, speed is fast, work efficiency is high.But also there is defective in above-mentioned technology, when practical operation, because the external diameter that plays knife bar is less than the internal diameter that is cut pipe, and the vibration that produces of motor, the operator is difficult to make knife bar and to be cut tube side consistent to remaining, cause the cut surface injustice thus, tube wall is wearing and tearing easily also, stay accident potential, and the operator is when cutting, need firmly to head on casing knife so that cutter head lifts, labour intensity is also very big always.

Summary of the invention: the purpose of this utility model exactly in order addressing the above problem, to provide that a kind of speed is fast, time saving and energy saving, work efficiency is high, and can not damage the outer casing knife of automatic plate of tube wall.

Technical solution of the present utility model is: the outer casing knife of automatic plate, comprise centration axis, positioning sleeve, screw, cutter head, knife bar, splicing sleeve, pin, bearing, spring, overcoat, last item, end parts such as a screw, draw ring, main shaft, coupling spindle, cutter head is anchored on the knife bar front end by screw, main shaft has the groove with the knife bar coupling, knife bar is fixed in the main shaft by pin, tail end has spring, main shaft is located by bearing, be loaded in splicing sleeve and the overcoat inner chamber, it is characterized in that: the centration axis of front-end of spindle is with positioning sleeve outward; Last item is arranged in the circular hole of main shaft end, and front end is a wedge, joins with knife bar, and its terminal surface has a circular hole forward, built-in spring, and the coupling spindle roof pressure is in spring end; Draw ring is enclosed within on main shaft end " L " v notch v, and is fixed on the last item by ending a screw.

Compare with original technology, the positioning sleeve structure that the utility model adopts both can make the cutter head held stationary rotate, and can protect tube wall again.Last item is blocked at draw ring is positioned at " L " v notch v when the knife bar level " " end place, makes the spring in the last item be in compressive state.During use front-end of spindle is inserted in the pipe, the rear end is connected with the electric drill main shaft, rotates draw ring again, discharges last item, under spring action, and the last item reach, its wedge front end is depressed the knife bar tail end, and the cutter head perk begins to cut pipe.After cutting is finished, again draw ring is retracted " _ " end place of " L " v notch v, the compression spring, the effect of the spring of knife bar below afterbody is the rehydration level state next time, and the operator only needs electric hand drill to get final product from start to finish, and is very laborsaving.

The beneficial effects of the utility model are that cutting speed is fast, time saving and energy saving, work efficiency is high, and can not damage tube wall.

Description of drawings: Fig. 1 is a structural representation of the present utility model,

1. centration axis, 2 positioning sleeves, 3 screws, 4 cutter heads, 5 knife bars, 6 splicing sleeves, 7 pins, 8 bearings, 9 spring a, 10 overcoats, 11 spring b, 12 last items, 13 end a screw, 14 draw rings, 15 main shafts, 16 coupling spindles.

The specific embodiment: referring to Fig. 1, the outer casing knife of the automatic plate that the utility model relates to, comprise centration axis 1, positioning sleeve 2, screw 3, cutter head 4, knife bar 5, splicing sleeve 6, pin 7, bearing 8, spring a9, overcoat 10, spring b11, last item 12, end a screw 13, draw ring 14, main shaft 15, coupling spindle 16 parts such as grade, cutter head 4 is anchored on knife bar 5 front ends by screw 3, main shaft 15 has the groove with knife bar 5 couplings, knife bar 5 is fixed in the main shaft 15 by pin 7, tail end has spring a9, main shaft 15 is by bearing 8 location, be loaded in the inner chamber of splicing sleeve 6 and overcoat 10 the centration axis 1 outer positioning sleeve 2 that is with of main shaft 15 front ends; Last item 12 is arranged in the circular hole of main shaft 15 ends, and front end is a wedge, joins with knife bar 5, and its terminal surface has a circular hole forward, built-in spring b11, and coupling spindle 16 roof pressures are in spring end; Draw ring 14 is enclosed within on " L " v notch v of main shaft 15 ends, and is fixed on the last item 12 by ending a screw 13.

Claims

1. the outer casing knife of the automatic plate that relates to of the utility model, comprise centration axis (1), positioning sleeve (2), screw (3), cutter head (4), knife bar (5), splicing sleeve (6), pin (7), bearing (8), spring a (9), overcoat 10, spring b (11), last item (12), end a screw (13), draw ring (14), main shaft (15), coupling spindle parts such as (16), cutter head (4) is anchored on knife bar (5) front end by screw (3), main shaft (15) has the groove with knife bar (5) coupling, knife bar (5) is fixed in the main shaft (15) by pin (7), tail end has spring a (9), main shaft (15) is located by bearing (8), be loaded in the inner chamber of splicing sleeve (6) and overcoat (10), it is characterized in that the outer positioning sleeve (2) that is with of centration axis (1) of main shaft (15) front end; Last item (12) is arranged in the terminal circular hole of main shaft (15), and front end is a wedge, joins with knife bar (5), and its terminal surface has a circular hole forward, built-in spring b (11), and coupling spindle (16) roof pressure is in spring b (11) end; Draw ring (14) is enclosed within on terminal " L " v notch v of main shaft (15), and is fixed on the last item (12) by ending a screw (13).