CN2576426Y

CN2576426Y - Screw driver

Info

Publication number: CN2576426Y
Application number: CN 02259262
Authority: CN
Inventors: 管继祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-10-19
Filing date: 2002-10-19
Publication date: 2003-10-01
Anticipated expiration: 2012-10-19

Abstract

The utility model relates to a hand-held screw driver with portability. An internal combustion engine, a centrifugal clutch, a steering speed changer, a planetary gear speed reducer and an impact mechanism are connected together on the same shaft line to form an integral body with compact structure so that the utility model has the characteristics of small size and light weight. A hand-held handle and a throttle handle are arranged on a shell body of the utility model so that the utility model can be held by hands to carry out disassembling and fastening work for bolts with various angles. The utility model is especially and widely suitable for trades, such as railways, bridges, petroleum, metallurgy, electric power, etc.

Description

Screw driver

Affiliated technical field

It is that power is dismantled bolt or the impact wrench of terminal operation with the internal combustion engine that the utility model relates to a kind of, i.e. Screw driver.

Background technology

At present, be known that a kind of gasoline engine impact wrench, the impact wrench that its structure is made up of gasoline engine, reduction box, steering mechanism, chain, transmission mechanism, mechanical shock mechanism and travelling wheel.The cumbersome complexity of its structure, volume is big, quality is heavy.Needing two people to lift to pushing away on the rail when operation uses.And can only dismantle or fastening the upright bolt on the railway sleeper, can not carry out operation, present the operation unification the bolt of other angle.

Summary of the invention

Big in order to solve existing gasoline engine impact wrench volume, the defective of quality weight and operation unification, the utility model provides a kind of Screw driver, this Screw driver not only volume is little, light weight, and compact conformation, be easy to carry is hand-holdablely carried out the multiple angles operation.

The technical scheme that its technical problem that solves the utility model adopts is: on same axis, with internal combustion engine, centrifugal clutch, turn to speed changer, planetary reducer and beater mechanism to couple together to constitute the integral body of a compact conformation, and handle and throttle control handle are installed turning on speed changer and the centrifugal clutch shell.When bolt being dismantled or when fastening, first starting apparatus combustion engine also places idling steering tiller to be placed pine or tight mark position the throttle again.Then, open the throttle when making rotating speed reach certain speed, its torsion is passed to by centrifugal clutch and is turned to speed changer, torsion is counterclockwise or turns clockwise and pass to planetary reducer behind conversion direction, torsion its torsion after slowing down increases and through beater mechanism torsion is put on the bolt, reaches dismounting or fastening purpose.

Internal combustion engine adopts the two-stroke miniature gasoline engine; Centrifugal clutch is by getting rid of piece and the spill clutch plate is formed; Planetary reducer is made up of two planetary gears and ring gear; The driving shaft of beater mechanism and impact block adopt the chevron-notch structure and spring are housed and steel ball; Be existing product and prior art with upper-part.

Turn to being provided with of speed changer to realize that Screw driver is to the dismounting of bolt and fastening.Turn to the power shaft and the driven shaft of speed changer often to mesh, driven shaft is splined shaft and slip disjunctor tooth cover is housed on axle, and slip disjunctor tooth cover is connected with steering tiller, and reverse gear shaft and output shaft often mesh.When demounting bolt, with the stubborn telltale mark of steering tiller, make slip disjunctor tooth cover and reversing shaft engagement to pine, counterclockwise torsion is exported in reverse gear shaft and output shaft engagement.When firm bolt, steering tiller twisted to tight telltale mark make slip disjunctor tooth cover and output shaft engagement, export clockwise torsion.

The beneficial effects of the utility model are, not only volume is little, light weight, and compact conformation, are easy to carry, and hand-holdablely carry out the multiple angles operation.

Description of drawings

Fig. 1 is the structural map of the utility model Screw driver.

Fig. 2 be Screw driver turn to speed changer vertical section structural map.

Fig. 3 is the front view of the steering tiller of Screw driver.

Among the figure, 1, beater mechanism; 2, planetary reducer; 3, turn to speed changer; 4, centrifugal clutch; 5, internal combustion engine; 6, recoil rope; 7, throttle; 8, handle; 9, throttle control handle; 10, steering tiller; 11, driven shaft; 12, power shaft; 13, spill clutch plate; 14, reverse gear shaft; 15, slip disjunctor tooth cover; 16, output shaft; 17, flat key; 18, jump ring.

The specific embodiment

In Fig. 1, on same axis, with internal combustion engine (5), centrifugal clutch (4), turn to speed changer (3), planetary reducer (2) and beater mechanism (1) to couple together to constitute the integral body of a compact conformation, and handle (8) and throttle control handle (9) are installed on the shell that turns to speed changer (3) and centrifugal clutch (4).

In Fig. 2, power shaft (12) and the normal engagement of driven shaft (11), driven shaft (11) is equipped with slip disjunctor tooth cover (15) on axle for splined shaft designs, and slip disjunctor tooth cover (15) is connected with steering tiller (10), reversing shaft (14) and the normal engagement of output shaft (16).When tearing bolt open, the telltale mark that steering tiller (10) is twisted to pine makes slip disjunctor tooth cover (15) and reversing shaft (14) engagement, reversing shaft (14) and the counterclockwise torsion of output shaft (16) engagement output.When tight bolt, steering tiller (10) twisted to tight telltale mark make slip disjunctor tooth cover (15) and output shaft (16) engagement, export clockwise torsion.

In Fig. 2, planetary reducer (2), turn to speed changer (3) and centrifugal clutch (4) on same axis, to be provided with; Turning to the output shaft (16) of speed changer (3) and the power shaft of planetary reducer (2) is same axis, turning to the power shaft (12) of speed changer and the output shaft of centrifugal clutch is same axis, and inserts and use flat key (17) to be connected with jump ring (18) in the spill clutch plate (13).

Claims

1. moving wrench in a kind, internal combustion engine, planetary reducer and beater mechanism, it is characterized in that: on the bar axis with internal combustion engine, centrifugal clutch, turn to speed changer, planetary reducer and beater mechanism to connect into an integral body, and on the shell that turns to speed changer and centrifugal clutch, handle and throttle control handle are installed.

2. Screw driver according to claim 1 is characterized in that: turn to its power shaft of speed changer and driven shaft often to mesh, driven shaft is that slip disjunctor tooth cover is housed on the splined shaft axle, and slip disjunctor tooth cover is connected with steering tiller, and reversing shaft and output shaft often mesh.

3. Screw driver according to claim 1 is characterized in that: planetary reducer, turn to speed changer and centrifugal clutch to be provided with on same axis; Turning to the output shaft of speed changer and the power shaft of planetary reducer is same axis, and turning to the power shaft of speed changer and the output shaft of centrifugal clutch is same axis, and inserts and use flat key to be connected with jump ring in the spill clutch plate.