CN104097166A

CN104097166A - Spanner

Info

Publication number: CN104097166A
Application number: CN201310115805.6A
Authority: CN
Inventors: 王暋
Original assignee: Hangzhou Great Star Industrial Co Ltd
Current assignee: Hangzhou Great Star Industrial Co Ltd
Priority date: 2013-04-03
Filing date: 2013-04-03
Publication date: 2014-10-15
Anticipated expiration: 2033-04-03
Also published as: CN104097166B

Abstract

The invention provides a spanner, which comprises a work part and a handle, wherein the work part comprises a main shaft, a two-way detent and a ratchet wheel, the main shaft is perpendicular to the handle, the two-way detent and the ratchet wheel are mutually matched, the two-way detent comprises a first detent and a second detent, and the work part also comprises a reversing device; the reversing device is set to a condition that the first detent and the second detent are optionally engaged with the ratchet wheel, so that when the handle upwards rotates in the set direction of the reversing device, the ratchet wheel is engaged with the two-way detent, and further, the main shaft is driven to rotate; when the handle rotates in a direction opposite to the set direction of the reversing device, slippage is generated between the ratchet wheel and the two-way detent, and the main shaft does not move. The work part also comprises a planetary gear accelerating mechanism acting on the main shaft, and when the handle is held, the input rotation is accelerated by the planetary gear accelerating mechanism and is then output by the main shaft.

Description

Spanner

Technical field

The present invention relates to a kind of spanner, belong to hand-operated tools field.

Background technology

When common spanner uses, because the hand of gripping handle is merely able to rotate a less angle, therefore when needs are during to a part continuous several times turn, needing is therebetween deadlocked allows hand turn round an angle in the other direction, sometimes be that spanner is temporarily withdrawn realization revolution in the other direction from part, this mode need to be again by spanner alignment element, is sometimes to realize revolution in the other direction by the auxiliary hand release handle of gripping handle that allows of another hand, and this operation is very inconvenient.

Under the output condition of this external low moment of torsion, if turn part as soon as possible will improve the operating efficiency of spanner greatly.

Therefore, those skilled in the art be devoted to develop one can be under low moment of torsion output condition turn part as soon as possible, can grip continuous the rotating back and forth of handle with hand in addition, do not need therebetween to pause, thereby screw fast or unscrew the spanner of part.

Summary of the invention

For achieving the above object, the invention provides a kind of spanner, comprise operate portions and handle, operate portions comprises the main shaft vertical with handle and the two-way pawl-and-gearing cooperatively interacting, wherein ratchet is set to be driven by handle, two-way ratchet is set to drive main shaft rotation, and has the first ratchet and second ratchet of the clutch opposite direction between ratchet, and operate portions also comprises the reversing arrangement of the clutch direction for two-way ratchet and ratchet are set; Reversing arrangement is set to make the first ratchet and the second ratchet optionally to engage with ratchet, makes in the time rotating in the direction that handle sets at reversing arrangement, and ratchet and two-way engaged pawl, and then drive main shaft to rotate; In the time that handle rotates in the direction of the opposite direction setting with reversing arrangement, between ratchet and two-way ratchet, skid, main shaft is motionless; Operate portions also comprises the planetary gear speed increasing mechanism that acts on main shaft, planetary gear speed increasing mechanism comprises central gear, planetary gear and gear ring, wherein central gear is set to drive main shaft to rotate together, swivel becket is set to drive planetary gear rotation, gear ring and handle are fixedly connected, make in the time that handle is held, when rotation swivel becket, planetary gear speed increasing mechanism is exported warp after the rotation speedup of swivel becket input by main shaft.

In preferred embodiments of the present invention, described ratchet is arranged on the inner peripheral surface of toroidal head portion of described handle.

In another preferred embodiments of the present invention, described two-way ratchet is arranged on described main shaft by bearing pin.

In another preferred embodiments of the present invention, described reversing arrangement is the reversing bar being located among described main shaft, described reversing bar is provided with the expansion link with described two-way click-fit, in described expansion link, be provided with spring, what make that described expansion link can be at described reversing bar is flexible in the radial direction, in the time that described reversing bar rotates, described expansion link is along with rotation, its head coordinates with the cambered surface being arranged on described two-way ratchet under the bias of spring, optionally make described the first ratchet or described second ratchet of described two-way ratchet coordinate with described ratchet, thereby set the clutch direction between described two-way ratchet and described ratchet.

In another preferred embodiments of the present invention, the head of described expansion link is hemispherical.

In another preferred embodiments of the present invention, described central gear is fixedly linked by screw and described main shaft.

In another preferred embodiments of the present invention, described gear ring is coordinated and is connected with blind hole by boss with handle.

In another preferred embodiments of the present invention, described planetary gear speed increasing mechanism is exported 4 times of rotation speedups by the input of described gear ring afterwards by described main shaft.

According to spanner of the present invention in use, under the condition of low moment of torsion output, as the starting stage of bolting on, the moment of torsion of the required output of spanner is less, and user is now without turning handle, and only need hold handle, rotate swivel becket by hand simultaneously, main shaft will rotate with the speed higher than the rotation of swivel becket, and its rotation direction is identical with the rotation direction of swivel becket, can bolt on quickly like this; Under the condition of high moment of torsion output, as the final stage bolting on, the moment of torsion of the now required output of spanner is larger, and user can preset by turning knob the outbound course of the main shaft of spanner, as clockwise direction or counter clockwise direction.Now, as user's turning handle on the outbound course of setting, main shaft upwards rotates the party with same speed; As user's turning handle in the direction contrary with the outbound course of setting, now main shaft keeps motionless.

Below with reference to accompanying drawing, the technique effect of design of the present invention, concrete structure and generation is described further, to understand fully object of the present invention, feature and effect.

Brief description of the drawings

Fig. 1 is the front view of the spanner of a preferred embodiment of the present invention.

Fig. 2 is the top view of the spanner of a preferred embodiment of the present invention.

Fig. 3 is the operate portions of the spanner in Fig. 1,2.

Fig. 4 is the exploded view of operate portions in Fig. 4.

Fig. 5 is the part assembly drawing of operate portions in Fig. 4.

Fig. 6 is the part assembly drawing of operate portions in Fig. 4.

Fig. 7 is the part assembly drawing of operate portions in Fig. 4.

Fig. 8 is the part assembly drawing of operate portions in Fig. 4.

Fig. 9 is the part assembly drawing of operate portions in Fig. 4.

Figure 10 is the part assembly drawing of operate portions in Fig. 4.

Figure 11 is the top view of speedup planetary mechanism in Fig. 4.

Figure 12 is the part assembly drawing of operate portions in Fig. 4.

Detailed description of the invention

Fig. 1,2 shows according to the front view of the spanner of a preferred embodiment of the present invention and top view, and this spanner includes operate portions 1 and handle 2 as seen, and wherein the axis of operate portions 1 is vertical with handle 2.As can be seen from Fig. 3, in the present embodiment, in operate portions 1, there is knob 3, swivel becket 4, be set in the handle 2 that outside operate portions 1, head is ring-type, and in operate portions 1, extend main shaft 5 along the axis direction of operate portions 1.When use, under the condition of low moment of torsion output, as the starting stage of bolting on, the moment of torsion of the required output of spanner is less, and user is now without turning handle, and only need hold handle 2, rotate swivel becket 4 by hand simultaneously, main shaft 5 will rotate with the speed higher than the rotation of swivel becket 4, and its rotation direction is identical with the rotation direction of swivel becket 4, can bolt on quickly like this; Under the condition of high moment of torsion output, as the final stage bolting on, the moment of torsion of the now required output of spanner is larger, and user can preset by turning knob the outbound course of the main shaft 5 of spanner, as clockwise direction or counter clockwise direction.Now, as user's turning handle 2 on the outbound course of setting, main shaft 5 upwards rotates the party with same speed; As user's turning handle 2 in the direction contrary with the outbound course of setting, now main shaft 5 keeps motionless.Below the concrete structure to this embodiment is elaborated.

Operate portions 1 comprises can coordinate with ratchet 10 two-way ratchet 7, and ratchet 10 is set to rotate with handle 2, and two-way ratchet 7 is set to drive main shaft 5 to rotate.Referring to the exploded view of the operate portions 1 in the Fig. 3 shown in Fig. 4, separately please be simultaneously referring to Fig. 5, Fig. 6.In the present embodiment, ratchet 10 is set directly on the inner peripheral surface of toroidal head portion of handle 2.Two-way ratchet 7 is arranged on main shaft 5 by bearing pin 8.In operate portions 1, also comprise the reversing arrangement of the clutch direction for two-way ratchet 7 and ratchet 10 are set.In the present embodiment, on two-way ratchet 7, have respectively and can coordinate with ratchet 10, and the first ratchet 12 of clutch opposite direction and the second ratchet 13.Reversing arrangement is the reversing bar 6 being located among main shaft 1.Reversing bar 6 is connected with knob 3, which is provided with the expansion link 9 coordinating with described two-way ratchet 7.The head of expansion link 9 is hemispherical, is provided with spring in it, and what make that expansion link 9 can be at reversing bar 6 is flexible in the radial direction.In the time rotating reversing bar 6 by knob 5, expansion link 9 rotates thereupon, its head coordinates with the cambered surface 11 being arranged on two-way ratchet 7 under the bias of spring, optionally make the first ratchet 12 or second ratchet 13 of two-way ratchet 7 coordinate with ratchet 10, thereby set the clutch direction between two-way ratchet 7 and ratchet 10.When handle 2 is in the time that direction initialization rotates, in the direction that ratchet 10 is set at reversing bar 6, engage with two-way ratchet 7, drive main shaft 5 to rotate and output torque; And in the opposite direction and skid between two-way ratchet 7, now main shaft 5 is motionless.

As shown in Fig. 7-11, operate portions 1 also comprises the planetary gear speed increasing mechanism that acts on main shaft 5, this planetary gear speed increasing mechanism comprises central gear 14, planetary gear 15 and gear ring 16, wherein central gear 14 is set to drive main shaft 5 to rotate together, and gear ring 16 is fixedly connected with handle 2.Swivel becket 4 is set to drive described planetary gear 15 to rotate.When grasping handle 2, when rotation swivel becket 4, gear ring 16 keeps motionless, and planetary gear 15 inputs are rotated, and drives central gear 14 speedups to rotate, and then drives main shaft 5 speedups to rotate.The rotating speed that now main shaft 5 is exported with the ratio of the rotating speed that swivel becket 4 is inputted is:

R=1+（N2/N1）

The number of teeth that wherein N2 is gear ring, N1 is the planetary number of teeth.

In the present embodiment, the number of teeth of gear ring 16 is 36, and the gear of planetary gear 15 is 12, and therefore planetary gear speed increasing mechanism is exported 4 times of the rotation speedups inputted by gear ring 16 afterwards by main shaft 5.

In the present embodiment, central gear 14 is fixedly linked by screw and main shaft 5.As shown in Fig. 6,12, gear ring 16 is coordinated and is connected with blind hole 18 by boss 18 with handle 2.

More than describe preferred embodiment of the present invention in detail.Should be appreciated that those of ordinary skill in the art just can design according to the present invention make many modifications and variations without creative work.Therefore, all technical staff in the art, all should be in by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.

Claims

1. a spanner, comprises operate portions and handle, it is characterized in that,

Described operate portions comprises the main shaft vertical with described handle and the two-way pawl-and-gearing cooperatively interacting, wherein said ratchet is set to be driven by described handle, described two-way ratchet is set to drive described main shaft rotation, and the first ratchet and second ratchet with the clutch opposite direction between described ratchet, described operate portions also comprises the reversing arrangement of the clutch direction for described two-way ratchet and described ratchet are set; Described reversing arrangement is set to make described the first ratchet and the second ratchet optionally to engage with described ratchet, make in the time rotating in the direction that described handle sets at described reversing arrangement, described ratchet and described two-way engaged pawl, and then drive described main shaft to rotate; In the time that described handle rotates in the direction of the opposite direction setting with described reversing arrangement, between described ratchet and described two-way ratchet, skid, described main shaft is motionless;

Described operate portions also comprises the planetary gear speed increasing mechanism that acts on described main shaft, described planetary gear speed increasing mechanism comprises central gear, planetary gear and gear ring, wherein said central gear is set to drive described main shaft to rotate together, described swivel becket is set to drive described planetary gear rotation, described gear ring and described handle are fixedly connected, make in the time that described handle is held, while rotating described swivel becket, described planetary gear speed increasing mechanism is exported warp after the rotation speedup of described swivel becket input by described main shaft.

2. spanner as claimed in claim 1, wherein, described ratchet is arranged on the inner peripheral surface of toroidal head portion of described handle.

3. spanner as claimed in claim 1, wherein, described two-way ratchet is arranged on described main shaft by bearing pin.

4. spanner as claimed in claim 1, wherein, described reversing arrangement is the reversing bar being located among described main shaft, described reversing bar is provided with the expansion link with described two-way click-fit, in described expansion link, be provided with spring, what make that described expansion link can be at described reversing bar is flexible in the radial direction, in the time that described reversing bar rotates, described expansion link is along with rotation, its head coordinates with the cambered surface being arranged on described two-way ratchet under the bias of spring, optionally make described the first ratchet or described second ratchet of described two-way ratchet coordinate with described ratchet, thereby set the clutch direction between described two-way ratchet and described ratchet.

5. spanner as claimed in claim 4, wherein, the head of described expansion link is hemispherical.

6. spanner as claimed in claim 1, wherein, described central gear is fixedly linked by screw and described main shaft.

7. spanner as claimed in claim 1, wherein, described gear ring is coordinated and is connected with blind hole by boss with handle.

8. spanner as claimed in claim 1, wherein, described planetary gear speed increasing mechanism is exported 4 times of rotation speedups by the input of described gear ring afterwards by described main shaft.