CN104097166B

CN104097166B - Spanner

Info

Publication number: CN104097166B
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: 2017-07-07
Anticipated expiration: 2033-04-03
Also published as: CN104097166A

Abstract

The invention provides a kind of spanner, including work department and handle, work department includes the two-way pawl-and-gearing of the main shaft vertical with handle and mutual cooperation, wherein two-way ratchet has the first ratchet and the second ratchet, work department also includes reversing arrangement；Reversing arrangement is arranged to make the first ratchet and the second ratchet optionally be engaged with ratchet so that when handle is rotated up in the side set by reversing arrangement, ratchet and two-way engaged pawl, and then drives main axis；When handle with the side in opposite direction set by reversing arrangement when being rotated up, skidded between ratchet and two-way ratchet, main shaft is motionless.Work department also includes acting on the planetary gear speed increasing mechanism of main shaft, is passed through when handle is held, after the rotation speedup that planetary gear speed increasing mechanism will be input into and is exported by 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 is used, because the hand of gripping handle is merely able to rotate a less angle, therefore when needs During to a part continuous several times turn, need to be deadlocked therebetween allow hand opposite direction turn round an angle, sometimes spanner from Temporarily withdrawn on part and realize that opposite direction is turned round, this mode is needed spanner alignment element again, sometimes uses another hand Auxiliary allows the hand release handle of gripping handle to realize that opposite direction is turned round, and this operation is inconvenient.

In addition under the output condition of low torque, if turn part as soon as possible, will greatly improve the operating efficiency of spanner.

Therefore, those skilled in the art be devoted to developing one kind can under low torque output condition turn zero as soon as possible Part, can hold with a hand handle and continuously rotate back and forth in addition, be not required to pause therebetween, so as to quickly screw or unscrew part Spanner.

The content of the invention

To achieve the above object, the invention provides a kind of spanner, including work department and handle, work department includes and handle Vertical main shaft and the two-way pawl-and-gearing of mutual cooperation, wherein ratchet are arranged to be driven by handle, two-way ratchet quilt It is set to that main shaft can be driven to rotate, and with the clutch between ratchet the first ratchet and the second ratchet in opposite direction, work Portion also includes the reversing arrangement for setting two-way ratchet and the clutch direction of ratchet；Reversing arrangement is arranged to make the first ratchet Optionally engaged with ratchet with the second ratchet so that when handle is rotated up in the side set by reversing arrangement, ratchet with Two-way engaged pawl, and then drive main axis；When handle is rotated up with the side in opposite direction set by reversing arrangement When, being skidded between ratchet and two-way ratchet, main shaft is motionless；Work department also includes acting on the planetary gear speed increasing mechanism of main shaft, Planetary gear speed increasing mechanism includes central gear, planetary gear and gear ring, and wherein central gear is arranged to that master can be driven Axle is rotated together, and swivel becket is arranged to that planetary gear rotation, gear ring can be driven to be fixed with handle and be connected so that when handle quilt When gripping, passed through during rotary motion ring, after the rotation speedup that be input into for swivel becket by planetary gear speed increasing mechanism and exported by main shaft.

In better embodiment of the invention, the ratchet is arranged on the inner peripheral surface of the toroidal head portion of the handle On.

In another better embodiment of the invention, the two-way ratchet is arranged on the main shaft by bearing pin.

In another better embodiment of the invention, described reversing arrangement is to be located in the commutation among the main shaft Bar, the reversing bar is provided with the expansion link with the two-way click-fit, is provided with spring in the expansion link so that described Expansion link can stretching in the radial direction in described reversing bar, when the reversing bar is rotated, the expansion link with rotation, Its head coordinates under the bias of spring with the cambered surface being arranged on the two-way ratchet, optionally makes the two-way spine First ratchet or second ratchet of pawl coordinate with the ratchet, thus set the two-way ratchet and the ratchet it Between clutch direction.

In another better embodiment of the invention, the head of described expansion link is hemispherical.

In another better embodiment of the invention, described central gear passes through screw and the main shaft fixing phase Even.

In another better embodiment of the invention, described gear ring coordinates phase by boss with handle with blind hole Even.

In another better embodiment of the invention, described planetary gear speed increasing mechanism makes by described gear ring 4 times of the rotation speedup of input is exported by the main shaft afterwards.

Spanner of the invention when in use, low torque output under conditions of, such as in the starting stage bolted on, The moment of torsion of output is smaller needed for spanner, and user need not now rotate handle, and need to only hold handle, while rotating rotation by hand Ring, main shaft will be rotated with the speed higher of the rotation than swivel becket, and its rotation direction is identical with the rotation direction of swivel becket, this Sample can quickly bolt on；Under conditions of high torque output, such as in the final stage bolted on, now needed for spanner The moment of torsion of output is larger, and user can preset the outbound course of the main shaft of spanner by turning knob, such as square clockwise To or counterclockwise.Now as user rotates handle on the outbound course of setting, then main shaft is at a same speed at this Side is rotated up；As user is rotated up handle in the side opposite with the outbound course of setting, now main shaft is remained stationary as.

The technique effect of design of the invention, concrete structure and generation is described further below with reference to accompanying drawing, with It is fully understood from the purpose 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 invention.

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

Fig. 3 is the work department of the spanner in Fig. 1,2.

Fig. 4 is the exploded view of work department in Fig. 4.

Fig. 5 is the part assembly drawing of work department in Fig. 4.

Fig. 6 is the part assembly drawing of work department in Fig. 4.

Fig. 7 is the part assembly drawing of work department in Fig. 4.

Fig. 8 is the part assembly drawing of work department in Fig. 4.

Fig. 9 is the part assembly drawing of work department in Fig. 4.

Figure 10 is the part assembly drawing of work department in Fig. 4.

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

Figure 12 is the part assembly drawing of work department in Fig. 4.

Specific embodiment

Fig. 1,2 show a preferred embodiment of the invention spanner front view and top view, it is seen that this is pulled Hand includes work department 1 and handle 2, and the wherein axis of work department 1 is vertical with handle 2.As can be seen from Fig. 3, in the present embodiment, It is the handle 2 of ring-type to have knob 3, swivel becket 4 in work department 1, be set in head outside work department 1, and along work department 1 Axis direction extends main shaft 5 from work department 1.It is first such as what is bolted under conditions of low torque output when using The moment of torsion of output is smaller needed for stage beginning, spanner, and user need not now rotate handle, and need to only hold handle 2, while using hand Rotary motion ring 4, main shaft 5 will be rotated with the speed higher of the rotation than swivel becket 4, and its rotation direction turns with swivel becket 4 Dynamic direction is identical, so can quickly bolt on；Under conditions of high torque output, such as in the last rank bolted on Section, now the moment of torsion of output is larger needed for spanner, and user can preset the output of the main shaft 5 of spanner by turning knob Direction, such as clockwise or counterclockwise.Now such as user rotates handle 2 on the outbound course of setting, then main shaft 5 Rotate in this direction at a same speed；As user is rotated up handle 2 in the side opposite with the outbound course of setting, this When main shaft 5 remain stationary as.The concrete structure of the embodiment will be described in detail below.

Work department 1 includes with ratchet 10 two-way ratchet 7, and ratchet 10 being coordinated to be arranged to be rotated with handle 2, two-way spine Pawl 7 is arranged to that main shaft 5 can be driven to rotate.Referring to the exploded view of the work department 1 in the Fig. 3 shown in Fig. 4, separately please referring also to Fig. 5, Fig. 6.In the present embodiment, ratchet 10 is set directly on the inner peripheral surface of the toroidal head portion of handle 2.Two-way ratchet 7 It is arranged on main shaft 5 by bearing pin 8.Also include for setting two-way ratchet 7 with the clutch direction of ratchet 10 in work department 1 Reversing arrangement.In the present embodiment, on two-way ratchet 7 have can coordinate with ratchet 10 respectively, and clutch it is in opposite direction first The ratchet 13 of ratchet 12 and second.Reversing arrangement is to be located in the reversing bar 6 among main shaft 1.Reversing bar 6 is connected with knob 3, thereon It is provided with the expansion link 9 coordinated with the two-way ratchet 7.The head of expansion link 9 is hemispherical, and spring is provided with it so that flexible Bar 9 can stretching in reversing bar 6 in the radial direction.When reversing bar 6 is rotated by knob 5, the concomitant rotation of expansion link 9, its head Portion coordinates under the bias of spring with the cambered surface 11 being arranged on two-way ratchet 7, optionally makes the first of two-way ratchet 7 The ratchet 13 of ratchet 12 or second coordinates with ratchet 10, so as to set the clutch direction between two-way ratchet 7 and ratchet 10.Work as handle 2 when direction initialization is rotated, and ratchet 10 is engaged on the direction that reversing bar 6 sets with two-way ratchet 7, drives main shaft 5 to rotate simultaneously Output torque；And skidded in the opposite direction between two-way ratchet 7, now main shaft 5 is motionless.

As illustrated in figures 7-11, work department 1 also includes acting on the planetary gear speed increasing mechanism of main shaft 5, and the planetary gear increases Fast mechanism includes central gear 14, planetary gear 15 and gear ring 16, and wherein central gear 14 is arranged to that main shaft 5 can be driven Rotate together, gear ring 16 is fixed with handle 2 and is connected.Swivel becket 4 is arranged to that the planetary gear 15 can be driven to rotate.When with Holding is stopped handle 2, and during rotary motion ring 4, gear ring 16 is remained stationary as, and the input of planetary gear 15 is rotated, and drives central gear 14 Speedup is rotated, and then drives the speedup of main shaft 5 to rotate.The ratio between rotating speed for being input into swivel becket 4 of rotating speed of the now output of main shaft 5 is：

R=1+（N2/N1）

Wherein N2 is the number of teeth of gear ring, and 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 speedup Mechanism makes 4 times of rotation speedup being input into by gear ring 16 be exported by main shaft 5 afterwards.

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

Preferred embodiment of the invention described in detail above.It should be appreciated that one of ordinary skill in the art without Need creative work just can make many modifications and variations with design of the invention.Therefore, all technologies in the art Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea Technical scheme, all should be in the protection domain being defined in the patent claims.

Claims

1. a kind of spanner, including work department and handle, it is characterised in that

Described work department includes the two-way pawl-and-gearing of the main shaft vertical with the handle and mutual cooperation, wherein described Ratchet be arranged to be driven by the handle, described two-way ratchet is arranged to drive the main shaft to rotate, and has First ratchet and second ratchet in opposite direction with clutch between the ratchet, described work department is also included for setting institute State the reversing arrangement of two-way ratchet and the clutch direction of the ratchet；Described reversing arrangement is arranged to make the first described spine Pawl and the second ratchet are optionally engaged with the ratchet so that when described handle is in the side set by described reversing arrangement When being rotated up, the ratchet and the two-way engaged pawl, and then drive the main axis；When described handle with institute When side in opposite direction set by the reversing arrangement stated is rotated up, skidded between the ratchet and the two-way ratchet, institute State main shaft motionless；

The work department also includes acting on the planetary gear speed increasing mechanism of the main shaft, described planetary gear speed increasing mechanism bag Central gear, planetary gear and gear ring are included, wherein described central gear is arranged to that the main shaft can be driven to turn together Dynamic, swivel becket is arranged to that the planetary gear rotation, described gear ring can be driven to be fixed with the handle and be connected so that when When the handle is held, when rotating the swivel becket, be input into for described swivel becket by described planetary gear speed increasing mechanism Rotation speedup after through being exported by the main shaft.

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

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

4. spanner as claimed in claim 1, wherein, described reversing arrangement is to be located in the reversing bar among the main shaft, The reversing bar is provided with the expansion link with the two-way click-fit, is provided with spring in the expansion link so that described to stretch Contracting bar can stretching in the radial direction in described reversing bar, when the reversing bar is rotated, the expansion link with rotation, its Head coordinates under the bias of spring with the cambered surface being arranged on the two-way ratchet, optionally makes the two-way ratchet First ratchet or second ratchet coordinate with the ratchet, so as to set between the two-way ratchet and the ratchet Clutch direction.

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 with the main shaft.

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

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