CN201128131Y

CN201128131Y - Slippage type moment spanners

Info

Publication number: CN201128131Y
Application number: CNU2007200441724U
Authority: CN
Inventors: 牟群芳
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-09-25
Filing date: 2007-09-25
Publication date: 2008-10-08
Anticipated expiration: 2017-09-25

Abstract

The utility model provides a slipping torque wrench which consists of a head cavity jacket, a clutch gear which is provided with built-in outer teeth and an output joint and a ratchet mechanism inside, a clutch claw which is meshed with the clutch gear, as well as a handle rod provided with a spring inside and a torque adjustment mechanism. The slipping torque wrench can realize the pre-setting of torque value in one way or two ways to slip automatically in a precise, safe, and reliable way, and also can quickly connect hand-operated tools which can be used for detaching bolts and nuts.

Description

The slipping type torque spanner

Technical field

It is a kind of accurate that the utility model belongs to, and safety realizes giving the hand-held tool of putting the also quick connection of torque value, demounting bolt nut, a kind of slipping type torque spanner of more specifically saying so reliably.

Background technology

At present, there is following drawback in machinery industry widely used torque spanner: be applied to giving on the spanner put moment by the arm of force or sensor after, when practical operation, all be subjected to the influence of impulse force and occupation mode, make the actual locking torque that acts on bolt or the nut put moment very big error is arranged with giving, the security of spanner is also not ideal enough when oppositely dismantling simultaneously.

The utility model content

The purpose of this utility model provides a kind of slipping type torque spanner of new mechanism, the slipping type torque spanner that this mechanism makes can precisely will give reliably to be put moment and is input on the operand, can be shaped on forward and reverse two kinds of moment values, replaceable various driving ends are installed and fast and safely demounting bolt nut fast and accurately by the moment values requirement.

The purpose of this utility model is achieved in that

As figure (1), as figure (2), figure (3), the utility model by head cavity overcoat (12), be built-in with external tooth (a) and inner install the clutch gear (22) that has out splice going splice (c) and ratchet mechanism, and and clutch gear (22) clutch claw (13) and handlebar (11), built-in spring (10) and the moment guiding mechanism that mesh form.Clutch gear (22) can be shaped on external tooth (a) and internal tooth (b), ratchet mechanism is with bearing pin (19) ratchet (20) to be connected on the ratchet shaft (26), reversing handle (16) is installed the ejector pin (18) of built-in spring (17), ejector pin (18) head withstands on the ratchet (20), the ratchet that promotes ratchet (20) is bumped on clutch gear (22) internal tooth (b), reversing handle (16) mounting screw (15) is screwed in ratchet shaft (26) draw-in groove, out splice going splice (c) has a blind hole, and spring (27) and ball (28) are installed the back and pressed the fourth of the twelve Earthly Branches in blind hole.Clutch gear (22) is installed ratchet mechanism and in both sides the back lid that is clipped in jump ring (24) of a wear-resisting sliding shim (21) and sliding shim (23) is installed respectively and is pulled in (25) draw-in groove and head cavity overcoat (12) draw-in groove.The same clutch gear of claw-teeth-type (22) external tooth (a) of clutch claw (13) matches, the side angle of external tooth (a) flute profile requires to make different angles according to setting positive and negative moment values, is used for forward and screws the stressed flank of tooth angle of screw thread (α) greater than oppositely unloading the stressed flank of tooth angle of loose screw thread (β).The handle portion main body is a pipe handle bar (11), the front end of handlebar (11) in pipe installed clutch claw (13), clutch claw 13 is shaped on groove (d), pin (14) is installed on the handlebar (11) by groove (d), clutch claw (13) afterbody is equipped with spring (10), spring (10) one ends withstand on clutch claw (13) afterbody, the other end withstands on to be adjusted on the cover (7), adjust cover (7) one sides and be shaped on long keyway (e) and the built-in key of long keyway (e) (8), the part of key (8) thickness is in long keyway (e), another part is embedded in the slotted eye of handlebar (11), adjust the scale (9) that cover (7) opposite side fixed installation one has scale (m), the scale (m) of scale (9) is in the face of handlebar window (n), adjust the adjusting lever (1) that cover (7) core left hand thread structure is equipped with step (f), the afterbody of adjusting lever (1) is shaped on six square toes, the fine setting cover (4) that same handlebar (11) internal thread connects is installed in step (f) back, handlebar (11) is equipped with the lock screw (3) that makes fine setting cover (4) be adjusted to the same scale of actual moment (9) scale (m) the fashionable then locked fine setting cover of position sign (4) in the part that is threaded of fine setting cover (4), one group of ball (5) that is located in fine setting cover (4) ball hole and step (f) the ball hole is arranged between fine setting cover (4) same step (f), the back is shaped on the hole clipping (g) of screwing fine setting cover (4), handlebar (11) afterbody is installed the stop handwheel (2) that adjusting lever (1) together is threaded. and screw stop handwheel (2), ball (5) is stuck in adjusting lever (1) stop between step (f) ball hole and fine setting cover (4) ball hole. and handlebar (11) rear portion outer tube wall is installed taper knob (6).

As figure (5), figure (6), the utility model also can be made into unidirectional, clutch gear (40) is installed in the head cavity overcoat (38), the ratchet shaft (39) that is shaped on out splice going splice (y) and ratchet (j) is installed in the clutch gear (40), clutch gear (40) endoporus is processed with groove (k), one ratchet (43) is installed in the groove (k), and ratchet (43) is embedded between the ratchet (j) of clutch gear (40) and ratchet shaft (39) by spring (42) top that is installed in clutch gear (40) upper spring support (41) support.

Also can make installation one pole (31) between adjustment bolt (33) that same handlebar (11) internal thread connects and spring (10) as figure (7) the utility model with adjusting handle portion, pole (31) is equipped with one group of ball (32) with adjusting between bolt (33), adjust bolt (33) back the one adjustment isostructural tight fixed bolt of bolt (34) is installed, handlebar (11) afterbody is installed a tail stifled (35). and handlebar rear portion outer tube wall is installed taper knob 6.

As figure (8) figure (9), the utility model can be manufactured the adapter that has landing edge (h) (49) that can be installed on the head out splice going splice (c), and the joint (h) of adapter (49) is gone up the bayonet lock (47) that has spring (48) and pressure-pad (46) is installed.As figure (10), double offset ring spanner head (44) or open spanner (45) at hand can be installed on adapter (49) joint (h).

The utility model has following major advantage and utility function:

1, the precision height

The utility model directly will give the moment of putting and pass on the out splice going splice, and bolt or nut need gives and put moment when reaching, and clutch is thrown off automatically, has eliminated traditional torque spanner and has used impulse force and the not enough error that produces of arm bar stability that produces in the operation.

2, the reliability height

The utility model moment output directly, and is simple and direct, reaches requirement and promptly throw off and skid, and must traditional torque spanner listen click, see indicator, numeral etc. do not have the error in the operating process.

3, security is good

The utility model can be provided with single, double to different moment values, as; A moment values is set clockwise, be the twice of clockwise moment value counterclockwise, reach when then screwing bolt or nut to give and put moment values and skid, can dismantle safely greatly owing to reverse moment when demounting bolt or nut, wait indefinitely to surpass when the very big situation of moment goes out to give counterclockwise when bolt or nut rust and put the moment values spanner and also will throw off and skid, spanner can not damage, and has overcome traditional torque spanner and has had two-way ratchet head but do not allow oppositely dismounting to use, and the operator can misapply the unfavorable factor of damage.

Figure of description

Fig. 1 is an overall structure schematic diagram of the present utility model:

Fig. 2 is the utility model handle scale window forward schematic diagram:

Fig. 3 is a forward condition head cross-sectional view of the present utility model:

Fig. 4 is a reverse state head cross-sectional view of the present utility model;

Fig. 5 is the utility model check configuration head schematic diagram:

Fig. 6 is the utility model check configuration head generalized section

Fig. 7 is a schematic diagram of transferring structure in the utility model handle:

Fig. 8 is the structural representation of the utility model installation adapter and driving end:

Fig. 9 is the schematic diagram of the utility model adaptor structure:

Figure 10 is the utility model configuration opening head and wabbler schematic diagram:

The specific embodiment

Mainly be depicted as example narration use of the present utility model below: when using the utility model slipping type torque spanner to scheme (1), unclamp stop handwheel (2) earlier, after making the ball hole degree of depth of the same handlebar of stop handwheel (2) (11) tail end face gap greater than adjusting lever (1) step (f), screw adjusting lever (1) with the spanner corresponding with adjusting lever (1) afterbody six square toes, adjusting lever (1) axial compression spring (10) makes ball (5) throw off the ball hole and then can rotate.Because adjusting lever (1) rotation and the adjustment cover (7) that is connected with adjusting lever (1) left hand thread structure have key (8) to be embedded in handlebar (11) and adjust in the keyway that overlaps (7) and can not rotate, produce axial displacement so adjust cover (7), owing to being fixed on, scale (9) adjusts on the cover (7) again, also synchronous shift of scale (9) then, adjust cover (7) axial displacement compression spring (10), the pressure that withstands on the clutch claw (13) strengthens, as figure (2), scale (9) scale (m) shows moment numerical value by window (n), screw stop handwheel (2) after meeting the requirements of moment values, ball (5) is stuck in the ball hole, adjusting lever (1) can not rotate again, adjusts cover (7) and scale (9) location.Backwards rotation reversing handle (16) is threaded to ejector pin (18) position shown in figure (3).When screwing the work of bolt or nut, (c) inserts corresponding target with out splice going splice, hold taper knob (6) and apply moment clockwise, because have clutch claw (13) to be engaged between clutch gear (22) external tooth (a) in the handlebar (11), clutch gear (22) internal tooth (b) is engaged on out splice going splice (c) the precession target that then drives ratchet shaft (26) on the ratchet (20) again.When the counterclockwise backhaul of spanner was square, internal tooth (b) opposite force of clutch gear (22) acted on the ratchet (20), can depress the ejector pin (18) of built-in spring (17) after ratchet (20) is stressed and throw off ratchet shaft (26), realized side of original position.Back and forth after the operation, when bolt or nut were torqued-up to the torque value of setting, clutch claw (13) holdback clutch gear (22) external tooth (a) skidded when axial thrust load that the axial thrust load that the mesh tooth face of the same clutch gear of clutch claw (13) (22) is subjected to produces greater than frictional force and spring force.When the utility model is used for demounting bolt or nut, reversing handle (16) is rotated clockwise to as scheming ejector pin (18) position shown in (4).Because state differs when demounting bolt or nut, the initial moment that needs is bigger, and the reverse flank of tooth angle (β) of the mesh tooth face of the same clutch gear of the utility model clutch claw (13) (22) is less than forward flank of tooth angle (α), output torque when the output torque when oppositely using is just used greater than forward, thereby can unload bolt or nut under the loose various defective mode easily, wait indefinitely to surpass oppositely to give when the very big situation of moment goes out when bolt or nut rust and put moment values, clutch claw (13) also wants holdback clutch gear (22) external tooth (a) to skid, and the reciprocal sour jujube in the unloading process twists operating process direction contrary principles with aforementioned.

Claims

So its characteristic of slipping type torque spanner be built-in with by head cavity overcoat (12) external tooth (a) and inner install the clutch gear (22) that has out splice going splice (c) and ratchet mechanism, and the clutch claw (13) that meshes with clutch gear (22) and the handlebar (11) of built-in spring (10) and moment guiding mechanism form.
2. its feature of slipping type torque spanner according to claim 1 is that also clutch gear (22) has internal tooth (b), and inside is equipped with the reversing handle (16) and the ratchet shaft (26) that ratchet (20) is connected with bearing pin (19) of built-in spring (17), ejector pin (18).
3. its feature of slipping type torque spanner according to claim 1 is that also head cavity head cavity (38) is built-in with the clutch gear (40) of external tooth (a), and clutch gear (40) inside is equipped with spring (42), ratchet (43) and has the ratchet shaft (39) of ratchet (j).
4, its feature of slipping type torque spanner according to claim 1 also be handlebar (11) be built-in with spring (10), be equipped with band scale (m) scale (9) adjustment cover (7), window (n), be installed in and adjust the adjusting lever (1) that has fine setting cover (4) and stop handwheel (2) on the cover (7).
5, its feature of slipping type torque spanner according to claim 1 also is adjustment bolt (33) and the tight fixed bolt (34) that handlebar (11) is built-in with spring (10), pole (31), is threaded with handlebar.
6, its feature of slipping type torque spanner according to claim 1 also is on the joint (h) of adapter (49), adapter (49) of landing edge (h) spring (47) and bayonet lock (48) to be installed.