CN200960639Y - Portable internal-combustion engine mechanical wrench - Google Patents

Abstract

The utility model discloses a spanner, in particular to a portable internal-combustion engine movable spanner, comprising an accelerator control handle and a small internal-combustion engine as power supply, characterized in that the accelerator control handle is connected with a gripper, the bottom of the gripper is connected with a positive-negative gear box with an eccentric clutch connected at top and a spanning element at bottom, the upper end of the eccentric clutch is equipped with an internal-combustion engine, and the lower end of the spanner is equipped with an adjustable spanner sleeve. The utility model has the advantages that the utility model realizes low weight of internal-combustion movable spanner (the whole weight is 9.8Kg), with simple structure and easy operation.

Description

The portable internal combustion impact wrench

(1) technical field under

The utility model relates to a kind of spanner, particularly a kind of portable internal combustion impact wrench.

(2) background technology

Along with railway speed raising several times, main busy trunk lines rate of traffic flow is increasing, and speed is more and more higher, utilize train interval, the internal combustion engine moving spanner (80kg) of original heaviness can't the upper track operation, and it is very difficult to block the circuit homework main points, and particularly Cha Qu blocks more difficult.Cause many work areas to pick up manual wrench again and carry out daily operation, operating efficiency is low, and labour intensity is big.

(3) summary of the invention

The utility model is in order to remedy the deficiencies in the prior art, provide a kind of light handy, operating efficiency is high, road portable internal combustion impact wrench easily up and down.

The utility model is achieved by the following technical solution:

A kind of portable internal combustion impact wrench, comprise throttle control hand lever, as the compact internal combustion engine of power, its special character is: throttle control hand lever is connected with handle, the handle bottom is connected with suitable gearbox, fall and be connected to centrifugal clutch along the gearbox top, the bottom with pull body and be connected, on the centrifugal clutch internal combustion engine is installed, pull the body lower end the adjustable cover of pulling be installed.

After the utility model has overcome internal combustion engine miniaturization (1.27kw), the technological difficulties that starting duty is flame-out; Internal combustion engine moving spanner internal combustion engine adopts the frame mode of miniaturization (1.27kw), and falling of design replaces manual wrench along gearbox for this reason, carries out the maintenance of main line and studies for a second time courses one has flunked operation.

The beneficial effects of the utility model are, have realized internal combustion engine moving spanner lighting (complete machine weight has only 9.8kg), have simple in structure, easy to operate advantage.

(4) description of drawings

Below in conjunction with accompanying drawing the utility model is described further.

Fig. 1 is a main TV structure schematic diagram of the present utility model

Fig. 2 is the local gear connection layout of the suitable gearbox of the utility model;

Fig. 3 is the profile of position shown in Figure 2.

Among the figure: 1 throttle control hand lever, 2 handles, 3 internal combustion engines, 4 centrifugal clutch, 5 fall along gearbox, 6 pull body, and 7 modes are pulled cover, 8 clutch splined shafts, 9 bearings, 10 tooth covers, 11 gears, 12 gears, 13 bearings, 14 reversing shafts, 15 change gears, 16 nuts, 17 bearings, 18 bolts, 19 gear shafts, 20 casings, 21 column types are dialled wooden fork, 22 bearings, 23 gears, 24 case lids, 25 gears, 26 gears.

(5) specific embodiment

Accompanying drawing is a kind of specific embodiment of the present utility model.The throttle control hand lever 1 of this embodiment is connected with handle 2, and handle 2 is connected along gearbox 5 with falling, fall and connect centrifugal clutch 4 along on the gearbox 5, down with pull body 6 and link to each other, internal combustion engine 3 is installed on the centrifugal clutch 4, pull adjustable the pulling of 6 times installations of body and overlap 7.Described suitable gearbox 5 comprises final drive shaft and commutation transmission mechanism; Break-in clutch splined shaft 8 upper and lower parts are equipped with bearing 13,22 respectively, and upper bearing 13 and tooth cover 10 is connected, and tooth cover 10 is connected with bearing 9 and is installed on the casing 20; Lower bearing 22 is connected with break-in clutch gear shaft 19, and lower bearing 22 bottoms are equipped with bearing 17, and bearing 17 is installed on the case lid 24, constitutes final drive shaft; On the tooth cover 10 gear 11 is installed, tooth overlaps 10 bottoms for dialling the change gear 15 that wooden fork 21 is stirred by column type, tooth overlaps 10 1 sides reversing shaft 14 is installed, reversing shaft 14 tops, bottom are separately installed with gear 12,25, gear 11 and upper gear 12 engagements, and undergear 25 1 sides are engaged with gear 26, be followed successively by bearing in the gear 26 and be fixed on bolt on the case lid 24, be fixed with nut 16 on the bolt, gear 26 and gear 23 engagements that are positioned on the gear shaft 19 constitute the commutation transmission mechanism; Fixing between case lid 24 and the casing 20 by bolt 18.

Pilot engine 3, engine is at the idling (state of 2000r/min～2800r/min), utilize centrifugal clutch 4 that engine spindle is separated with the spanner main shaft, insert spanner, pull throttle control hand lever 1 engine speed is brought up to 4000r/min, centrifugal clutch 4 closures drive clutch splined shaft 8 and rotate, by change gear 15, twisting gear shaft 19.Gear shaft 19 twistings are pulled body 6 and are finished the bolted operation.Pulling body mainly is made of parts such as planetary gear speed reducing mechanism, main shaft, spring, active impact block, driven impulsion piece, steel ball, shells.8 rotations of clutch splined shaft make main axis rotation through planetary gear reducing mechanism.The main shaft output has two symmetries " V " groove, and initiatively the inner headed face of impact block also has two corresponding with it circular arc cambers, and the steel ball that to be embedded with two diameters therebetween be 6.35mm makes their connection as a whole by working spring.When nut does not tighten and sleeve resistance when little as yet, driven impact block becomes as a whole with impact block conversion clutch initiatively.When sleeve is tightened nut substantially, the resistance of sleeve is acquired a certain degree and when not continuing to rotate (sleeve and driven impact block stop initiatively impact block rotation), and still forcing fast continuation of initiatively impact to be rotated by the power of main shaft, just against the force of the spring and continue rotation (compression spring) of two steel balls this moment along the moving initiatively impact block of " V " shape troughed belt of main shaft, make the initiatively tooth embedding of impact block break away from the tooth embedding of driven impact block, and from then on moment rises, initiatively impact block quickens rotation forward on the one hand under the effect of main shaft owing to unload resistance, under spring action, quicken again on the other hand to left movement, the synthetic result of these two motions just causes driven impact block is produced impact.Because initiatively the bump effect of impact block reaches the purpose that nut is tightened.

Under the engine idle state, pull column type and dial wooden fork handle 21, make change gear 15 and tooth overlap 10 closures, pull throttle control hand lever 1 engine speed is brought up to 4000r/min, centrifugal clutch 4 closures, driving clutch splined shaft 8 rotates, by change gear 15, twisting tooth cover 10, tooth overlap 10 driven gears 11 and rotate, gear 11 driven gears 12 are by reversing shaft 14, gear 25, gear 26 twisting gear shafts 19.Body 6 is pulled in gear shaft 19 twistings, finishes bolt is unscrewed operation fast.

Claims (4)

1. portable internal combustion impact wrench, comprise throttle control hand lever (1), as the compact internal combustion engine (3) of power, it is characterized in that: throttle control hand lever (1) is connected with handle (2), handle (2) bottom is connected with suitable gearbox (5), fall and be connected to centrifugal clutch (4) along gearbox (5) top, the bottom with pull body (6) and be connected, on the centrifugal clutch (4) internal combustion engine (3) is installed, pull body (6) lower end the adjustable cover (7) of pulling be installed.

2. according to claim 1 described portable internal combustion impact wrench, it is characterized in that: described suitable gearbox (5) comprises final drive shaft and commutation transmission mechanism; Break-in clutch splined shaft (8) upper and lower part is equipped with bearing (13,22) respectively, and upper bearing (13) is connected with tooth cover (10), and tooth cover (10) is connected with bearing (9) and is installed on the casing (20); Lower bearing (22) is connected with break-in clutch gear shaft (19), and lower bearing (22) bottom is equipped with bearing (17), and bearing (17) is installed on the case lid (24), constitutes final drive shaft.

3. according to claim 2 described portable internal combustion impact wrenches, it is characterized in that: gear (11) is installed on the described tooth cover (10), tooth cover (10) one sides are equipped with reversing shaft (14), reversing shaft (14) top, bottom are separately installed with gear (12,25), gear (11) and upper gear (12) engagement, undergear (25) one sides are engaged with gear (26), and gear (26) and gear (23) engagement that is positioned on the gear shaft (19) constitute the commutation transmission mechanism.

4. according to claim 3 described internal combustion engine moving spanners, it is characterized in that: described tooth cover (10) bottom is for dialling the change gear (15) that wooden fork (21) is stirred by column type.

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