CN110315459A - A kind of slippage type moment spanners with dropping device - Google Patents
A kind of slippage type moment spanners with dropping device Download PDFInfo
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- CN110315459A CN110315459A CN201910711202.XA CN201910711202A CN110315459A CN 110315459 A CN110315459 A CN 110315459A CN 201910711202 A CN201910711202 A CN 201910711202A CN 110315459 A CN110315459 A CN 110315459A
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- square tenon
- slot
- drive sleeve
- tenon
- torque
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- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 239000011148 porous material Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
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- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B13/00—Spanners; Wrenches
- B25B13/58—Jaw attachments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
- B25B23/142—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers
- B25B23/1422—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters
- B25B23/1427—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for hand operated wrenches or screwdrivers torque indicators or adjustable torque limiters by mechanical means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/16—Handles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The invention provides a kind of slippage type moment spanners with dropping device, including head assembly, handle, rotary components and square tenon component, square tenon component include be located in drive sleeve, hollow square tenon, the square tenon and transmission inner room are equipped with torque transmission mechanism, realize that torque passes to square tenon by drive sleeve by the torque transmission mechanism, the tenon of the square tenon is stretched out by shell；Rotary components are mounted on square tenon inner cavity, including live spindle, and live spindle is coaxial and is rotatably installed in square tenon inner cavity, which is equipped with pressing dropping mechanism corresponding with square tenon tool sleeve.Spanner described in the invention has the function of commutation and fast-falling simultaneously, facilitates operation, particularly, conducive to operation of the operator in limitation of activity.
Description
Technical field
The invention belongs to torque spanner field, pulls more particularly, to a kind of slipping type torque with dropping device
Hand.
Background technique
In this kind of tool of torque spanner, slippage type moment spanners have the advantages that it is prominent, i.e., application torque reach and surpass
When crossing spanner preset torque, spanner can skid automatically, effectively avoid the adverse effect that overload generates product.Currently, often
The slippage type moment spanners seen have different structures because the emphasis of concern is different.Wherein, such as patent (ZL
200720044172.4) a kind of slippage type moment spanners are described, which devises different preset forces in two directions
Square, but the sliding friction of " tooth form is to tooth form " is used between torque transmitting assembly, certain shadow is generated to the precision of torque transmitting
It rings, and the spanner does not have fast-falling function, influences in special operation operating condition that (such as limited time, flexible operation degree is bad
Etc. operating conditions) convenience that uses, reduce operating efficiency.
Summary of the invention
In view of this, the invention is directed to a kind of slippage type moment spanners with dropping device, it is double to provide
To torque spanner, prefabricated certain slipping torque on both direction (screw and dismantle), suitable for tightening installation requirement now,
And there is fast-falling structure on the spanner, guarantee to be rapidly separated between spanner and its correspondence tool.
In order to achieve the above objectives, the technical solution of the invention is achieved in that
A kind of slippage type moment spanners with dropping device, including head assembly, handle, rotary components and square tenon group
Part meets:
Head assembly, including shell and drive sleeve, drive sleeve center line and handle are vertical, and shell is packed on handle, pass
Dynamic set is rotatably arranged in shell；
Handle is hollow structure, and torque adjustment mechanism is equipped in the handle, and torque adjustment mechanism and drive sleeve correspondence are set
It sets, drive sleeve is pressed by the torque adjustment mechanism；
Square tenon component include be located in drive sleeve, hollow square tenon, the square tenon and transmission inner room be equipped with torque transmission mechanism,
Realize that torque passes to square tenon by drive sleeve by the torque transmission mechanism, the tenon of the square tenon is stretched out by shell；
Rotary components are mounted on square tenon inner cavity, including live spindle, and live spindle is coaxial and is rotatably installed in square tenon
Chamber, the live spindle are equipped with pressing dropping mechanism corresponding with tool adapter.
Further, the torque transmission mechanism includes installation axle and half a month axis, and the square tenon axial plane is equipped with groove, described
Half a month axis is mounted in groove by installation axle swing, and the outer convex globoidal of half a month axis is located at outside groove, and installation axle and square tenon axis are same
To setting, the drive sleeve medial surface circumferencial direction is uniformly provided with several first teeth, and the outer convex globoidal both ends of half a month axis are each provided with
With the second tooth of the first tooth matching engagement, which is equipped with reversing mechanism corresponding with half a month axis, reversing mechanism effect
Under, half a month axis is switched to the other side with drive sleeve meshing state by side and engages with drive sleeve, realizes the transmitting of torque different directions.
Further, the reversing mechanism is arranged corresponding with half a month axis including the commutation decorative pearl on top of an official cap and live spindle side
Blind hole, the commutation decorative pearl on top of an official cap are mounted in the blind hole by the spring that commutates, and the decorative pearl on top of an official cap that commutates is pressed on half a month axis medial surface.
Further, the pressing dropping mechanism includes the pressing main shaft with live spindle coaxial arrangement, and pressing main shaft is set
It sets in square tenon, which is mounted in live spindle by connecting pin, and is pressed and set between main shaft and live spindle
There is relative rotation structure, which is being equipped with stepped groove, the stepped groove with square tenon tenon corresponding position
Including being connected to and along the first slot and the second slot that pressing main shaft is axially sequentially arranged, and the second slot position is in outer end, the second groove deep
Less than the first slot, the square tenon tenon is equipped with location hole corresponding with the second slot, which is equipped with the tool ends end decorative pearl on top of an official cap, tool
The tenon surface setting of decorative pearl on top of an official cap protrusion is held, which matches in the second slot；
The live spindle extends square tenon inner cavity away from one end of pressing main shaft, and top is equipped with top cap, square tenon and should
Returning spring is equipped between top cap, returning spring is sleeved in live spindle.
Further, the live spindle is being closed on equipped with spring support plate at top cap position, and returning spring presses the spring
Supporting plate setting, spring support plate top circumferential direction are embedded with several first balls, and first ball is close to the setting of top cap bottom surface.
Further, it is described relatively rotate structure include press main shaft on open up, for connecting pin around pressing spindle drive
The installation space of line rotation is covered, which is pore structure or slot structure, and live spindle is equipped with and the matched pin hole of connecting pin,
Connecting pin is in elastic conjunction to pin hole after installation space.
Further, the torque adjustment mechanism includes the first roller being sequentially arranged in handle, mandril, adjusts bullet
Spring, bushing and regulating part, respectively between handle there are gap, regulating part is threaded in handle inner bottom end for bushing, mandril,
Regulating part presses bushing setting, and adjustment spring is pressed between bushing and mandril, and the first roller center line and handle are vertical, this first
Roller is inlaid in mandril top, and the mandril top surface setting of first roller protrusion, the drive sleeve outer circumference surface are uniformly provided with number
A limiting slot, the first roller matching are fitted in one of limiting slot.
Further, the regulating part with bushing contact position circumferencial direction be embedded with multiple second balls, described second
Ball and bushing are close to.
Further, drive sleeve axis surface is axially embedded with the second rolling between each adjacent two limiting slot at position
Column, second roller and shell are close to.
Further, two corner dimensions between groove face and slot bottom of the limiting slot differ, wherein tightening screw element clockwise
Stress groove face angle [alpha] is greater than unscrews screw element stress groove face angle beta counterclockwise.
Compared with the existing technology, a kind of slippage type moment spanners with dropping device described in the invention have with
Lower advantage:
1. having the function of commutation and fast-falling simultaneously, facilitate operation, particularly, is conducive to operator in limitation of activity
The operation of (such as finger dexterity decline, sense of touch disappearance, weightlessness)；
2. commutating, it is coaxially arranged to use with fast-falling device, compact-sized, it is conducive to miniaturized structure；
3. the link of pair influence torque transmitting accuracy, is converted to rolling friction for sliding friction, torque transmitting is improved
Precision；
4. pair screwing and dismounting force moment pilot angle carrying out difference design, so that dismounting force moment is suitably larger than clamp load torque, be conducive to
Disassembling section.
Detailed description of the invention
The attached drawing for constituting a part of the invention is used to provide to further understand the invention, present invention wound
The illustrative embodiments and their description made are used to explain the present invention creation, do not constitute the improper restriction to the invention.?
In attached drawing:
Fig. 1 is the slippage type moment spanners decomposition diagram that the present embodiment has dropping device；
Fig. 2 is the slippage type moment spanners installation diagram that the present embodiment has dropping device；
Fig. 3 is Wrench head structural schematic diagram in the present embodiment；
Fig. 4 is rotary components decomposition diagram in the present embodiment；
Fig. 5 is square tenon component decomposition diagram in the present embodiment；
Fig. 6 is that spanner described in the present embodiment dismantles screw element rotary state schematic diagram；
Fig. 7 is that spanner described in the present embodiment tightens screw element rotary state schematic diagram.
Description of symbols:
10-Wrench heads:
101- shell；102- sleeve；The second roller of 103-；
20-rotary components:
201- live spindle；202- presses main shaft；203- connecting pin；204- commutation spring；The 205- commutation decorative pearl on top of an official cap；206- is returned
Multiple spring；207- spring support plate；The first ball of 208-；209- top cap；
30-square tenon components:
301- square tenon；The 302- tool ends end decorative pearl on top of an official cap；303- half a month axis；304- installation axle；
40-handles；
50-torque adjusting components:
The first roller of 501-；502- mandril；504- adjustment spring；505- bushing；The second ball of 506-；
507- regulating part；
60- rear end cap；.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the invention can
To be combined with each other.
In the description of the invention, it is to be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the invention and simplifies description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For the limitation to the invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.In the description of the invention, unless separately
It is described, the meaning of " plurality " is two or more.
In the description of the invention, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State concrete meaning of the term in the invention.
The present invention will be described in detail below with reference to the accompanying drawings and embodiments creates.
As shown in Figs. 1-5, a kind of slippage type moment spanners with dropping device, including head assembly 10, handle 40, rotation
Turn component 20 and square tenon component 30, meet:
10 function of head assembly is to provide structural support for rotary components 20,30 two parts of square tenon component, and be it
The bridge that component 50 is associated is adjusted with 40 moment of resistance of handle.Head assembly 10 includes shell 101, drive sleeve 102, wherein shell
101 be hollow structure, and drive sleeve 102 is hollow sleeve form, is installed in shell 101；102 inner periphery of drive sleeve is dentation knot
Structure, the tooth are known as the first tooth, and 102 excircle of drive sleeve is uniformly provided with several limiting slots, with the torque adjusting component 50 in handle
The common setting for completing preset torque, and realize torque skidding function.Wherein, limiting slot is designed as unsymmetric structure, wherein suitable
Hour hands, which are tightened screw thread stress groove face angle [alpha] and are greater than, unscrews screw thread stress groove face angle beta counterclockwise, to adapt to screw and disassembling function
Different torque requirements；To reduce influence of the moment of friction to torque transmitting accuracy to greatest extent, 102 axis surface of drive sleeve is every
The second roller 103 is axially embedded between two neighboring limiting slot at position, second roller 103 and shell 101 are close to.
Square tenon component 30, major function is connection external tool adapter and commutation function, including is located at drive sleeve 102
The tenon of interior, hollow square tenon 301, the square tenon 301 is stretched out by shell；301 axial plane of square tenon is equipped with groove, the half a month axis
303 are mounted in groove by the swing of installation axle 304, and the outer convex globoidal of half a month axis 303 is located at outside groove, installation axle 304 and square tenon
Axis is arranged in the same direction, and the outer convex globoidal both ends of half a month axis 303 are each provided with the second tooth with the matching engagement of 102 first tooth of drive sleeve,
When torque is transmitted, half a month axis is swung until one side and drive sleeve engage, and torque is passed to square tenon through half a month axis by drive sleeve, most
It is spread out of eventually through square tenon.In this city embodiment, half a month axis two sides are provided with the second tooth knot with the matching engagement of the first tooth of drive sleeve
Structure, half a month axis is not ipsilateral and drive sleeve engagement, realization torque different directions transmit, that is, according to actual thread rotation direction operation side
To demand, half a month axis side and drive sleeve engagement are selected.This spanner realizes that the work pattern of screw thread both direction, i.e. screw thread are tightened
Operation and disassembly operation can be completed by this spanner.
20 major function of rotary components is to realize torque spanner commutation and the triggering of fast-falling function.Rotation group
Part 20 includes: live spindle 201, pressing main shaft 202, connecting pin 203, commutation spring 204, the commutation decorative pearl on top of an official cap 205, returning spring
206, spring support plate 207, the first ball 208.Live spindle 201, pressing main shaft 202 is coaxial and is inserted into square tenon 301, rotates
Top cap 209 is equipped at the top of main shaft 201, which is multi-diameter shaft form, in the present embodiment, it is preferred that live spindle
201 bottom ends are inserted to pressing main shaft top end, i.e. 201 bottom end of live spindle inserts in the jack being arranged to pressing main shaft 202, rotation
Turn 201 lower part of main shaft and be provided with pin hole, pressing 202 top of main shaft is offered for connecting pin 203 around pressing 202 drive sleeve line of main shaft rotation
The installation space turned, the installation space are pore structure or slot structure, and connecting pin 203 is across elastic conjunction after installation space to pin hole
It is interior, realize that live spindle 201 and pressing main shaft 202 are connected by connecting pin 203, the installation space on pressing 202 top of main shaft makes
Live spindle 201 rotation when, pressing main shaft 202 do not rotate with, i.e., realization certain angle within the scope of live spindle 201
It is rotated relative to pressing shaft 202.Set up separately in 201 middle portion of live spindle in respect of blind hole, for installing commutation spring 204 and changing
To the decorative pearl on top of an official cap 205, the decorative pearl on top of an official cap 205 that commutates protrudes the setting of 201 surface of live spindle.Commutation spring 204 ensure that the commutation decorative pearl on top of an official cap 205 always
There is the contact of certain pressure with the half a month axis 303 in square tenon component, when operating live spindle 201, revolve half a month axis 303
Turn, realizes screw thread switching operation function.In the present embodiment, pressing 202 axis surface side of main shaft is corresponding to position with 301 tenon of square tenon
It sets place and is equipped with stepped groove, which includes connection and along pressing main shaft the first slot and the second slot that are axially sequentially arranged, and the
Two slot positions are equipped with location hole corresponding with the second slot less than the first slot, 301 tenon of square tenon in outer end, the second groove deep, should
Positioning hole is equipped with the tool ends end decorative pearl on top of an official cap 302, and the tool ends end decorative pearl on top of an official cap 302 protrudes the setting of tenon surface, and the tool ends end decorative pearl on top of an official cap 302 matching exists
In second slot；Returning spring 206 is equipped between square tenon 301 and the top cap 209, returning spring 206 is sleeved in live spindle 201.
When specific operation, live spindle 201 is pressed, drives and is moved outside pressing main shaft 202, the first slot, the second slot synchronize outer shifting, tool ends end top
Pearl 302 drops down onto the first slot, at this point, the clamping power between square tenon and Wrench adapter disappears, pins live spindle, can be fast
Speed is realized to be detached between this spanner and external tool adapter.During switching operation, to reduce the frictional force in commutation process,
Elastic element is protected, 207 top circumferential direction of spring support plate is embedded with several first balls 208, and first ball 208 is close to
The setting of 209 bottom surface of top cap.
The handle 40, major function hold position and provide knot for torque adjusting component 50 when being operator's operation
Structure carrier.Handle 40 is pipe structure, and front end is connected with outer casing screw, and bottom end closure has end cap 60, plays dustproof effect, hand
Handle lower part is equipped with elastometric boot, and main function is the frictional force for increasing handle 40.
As shown in Figure 1, 2, the torque adjusting component 50, major function are adjusted to the preset slipping torque of torque spanner
Section.Torque adjusting component 50 includes being sequentially arranged the first roller 501, mandril 502, adjustment spring 504, bushing in handle 40
505 and regulating part 507, respectively between handle 40 there are gap, regulating part 507 is equipped with externally threaded for bushing 505, mandril 502
Cylindrical structure, the regulating part 507 are threaded at 40 inner bottom of handle, and regulating part 507 presses the setting of bushing 505, are adjusted
Spring 504 is pressed between bushing 505 and mandril 502, and 501 center line of the first roller and handle are vertical, which is embedded in
On 502 top of mandril, and first roller 501 protrusion, 502 top surface of mandril setting, the first roller 501 matching press fitting wherein one
In a limiting slot, the influence of frictional force when to reduce torque adjusting, mandril cylindrical surface peripheral design has ball-and-socket, matching in ball-and-socket 2
Useful ball, the ball and the contact of handle inner wall, for reducing frictional force between mandril and handle.The regulating part 507 and lining
505 contact position circumferencial directions are covered to be close to embedded with multiple second balls 506, second ball 506 and bushing 505.Second rolling
The setting of pearl 506 is played the role of reducing frictional force between regulating part 507 and bushing.
Use process: before operation, need to carry out the preset of slipping torque, the preset of slipping torque relies primarily on torque adjusting
Component 50 is completed.When adjusting slipping torque, regulating part 507 is adjusted according to torque test case, adjustment spring 504 is made to compress or put
Pine, to adjust the pressure of the first roller 501 and 102 limiting slot of drive sleeve, reaches to adjust the pressure of adjustment spring 504
The purpose of Torque-adjusting.
After the completion of slipping torque is preset, the slipping torque of tool is determined, can be screwed and disassembling section.When operation,
The tenon of square tenon 301 installs matched tool sleeve.Screw element is tightened if necessary, as shown in fig. 7, rotating along the direction r2
Main shaft 201, so that half a month axis 303 is in rotation direction R2 state, torque spanner can drive tool sleeve along the rotation of the diagram direction R2 at this time
Turn, is at this time screw element tightening state.If screw element is unscrewed or is dismantled, as shown in fig. 6, along the direction r1 live spindle 201,
So that half a month axis 303 is in rotation direction R1 state, torque spanner can drive tool sleeve to rotate along the diagram direction R1 at this time, at this time for
Screw element unscrews state.
The foregoing is merely the preferred embodiments of the invention, are not intended to limit the invention creation, all at this
Within the spirit and principle of innovation and creation, any modification, equivalent replacement, improvement and so on should be included in the invention
Protection scope within.
Claims (10)
1. a kind of slippage type moment spanners with dropping device, it is characterised in that: including head assembly (10), handle (40),
Rotary components (20) and square tenon component (30) meet:
Head assembly (10), including shell (101) and drive sleeve (102), drive sleeve (102) center line and handle (40) vertically,
Shell (101) is packed on handle (40), and drive sleeve (102) is rotatably arranged in shell (101)；
Handle (40) is hollow structure, is equipped with torque adjustment mechanism (50) in the handle (40), torque adjustment mechanism (50) and biography
Dynamic set (102) is correspondingly arranged, and presses drive sleeve (102) by the torque adjustment mechanism (50)；
Square tenon component (30), including being located in drive sleeve (102), hollow square tenon (301), the square tenon (301) and drive sleeve
(102) it is equipped with torque transmission mechanism between, square tenon (301), institute are passed to by drive sleeve (102) by the torque transmission mechanism torque
The tenon for stating square tenon (301) is stretched out by shell；
Rotary components (20) are mounted on square tenon (301) inner cavity, including live spindle (201), and live spindle (201) is coaxial and turns
Dynamic to be mounted on square tenon (301) inner cavity, which is equipped with pressing dropping mechanism corresponding with tool adapter.
2. a kind of slippage type moment spanners with dropping device according to claim 1, it is characterised in that: the torque
Transmission mechanism includes installation axle (304) and half a month axis (303), and square tenon (301) axial plane is equipped with groove, the half a month axis
(303) it is swung and is mounted in groove by installation axle (304), half a month axis (303) outer convex globoidal is located at outside groove, installation axle
(304) it is arranged in the same direction with square tenon axis, drive sleeve (102) the medial surface circumferencial direction is uniformly provided with several first teeth, half a month
The outer convex globoidal both ends of axis (303) are each provided with the second tooth with the matching engagement of the first tooth, which is equipped with and half a month
The corresponding reversing mechanism of axis, under reversing mechanism effect, half a month axis (303) is switched to separately by one side and drive sleeve meshing state
Side is engaged with drive sleeve, realizes the transmitting of torque different directions.
3. a kind of slippage type moment spanners with dropping device according to claim 2, it is characterised in that: the commutation
Mechanism is arranged including the commutation decorative pearl on top of an official cap (205) and live spindle (201) the side and corresponding blind hole of half a month axis (303), commutation
The decorative pearl on top of an official cap (205) is mounted in the blind hole by commutation spring (204), and the commutation decorative pearl on top of an official cap (205) is pressed on the inside of half a month axis (303)
On face.
4. a kind of slippage type moment spanners with dropping device according to claim 1 or 2 or 3, it is characterised in that: institute
State the pressing main shaft (202) that pressing dropping mechanism includes and live spindle (201) are coaxially disposed, pressing main shaft (202) inner end
It is mounted on live spindle (201) by connecting pin (203), presses and be equipped with opposite turn between main shaft (202) and live spindle (201)
Dynamic structure, pressing main shaft (202) the axis surface side are being equipped with stepped groove, the ladder with square tenon (301) tenon corresponding position
Slot includes connection and along pressing main shaft the first slot and the second slot that are axially sequentially arranged, and the second slot position is in outer end, the second slot slot
Deep less than the first slot, square tenon (301) tenon is equipped with location hole corresponding with the second slot, which is equipped with tool ends end top
Pearl (302), the tool ends end decorative pearl on top of an official cap (302) protrude the setting of tenon surface, which matches in the second slot；
The live spindle (201) extends square tenon (301) inner cavity away from one end of pressing main shaft, and top is equipped with top cap
(209), returning spring (206) are equipped between square tenon (301) and the top cap (209), returning spring (206) is sleeved on live spindle
(201) on.
5. a kind of slippage type moment spanners with dropping device according to claim 4, it is characterised in that: the rotation
Main shaft (201) is being closed on equipped with spring support plate (207) at top cap (209) position, and returning spring (206) presses the spring support plate
(207) it is arranged, spring support plate (207) top circumferential direction is embedded with several first balls (208), first ball (208)
It is close to the setting of top cap (209) bottom surface.
6. a kind of slippage type moment spanners with dropping device according to claim 4, it is characterised in that: described opposite
Rotational structure include pressing main shaft (202) on open up, for connecting pin (203) around pressing main shaft (202) drive sleeve line rotation
Installation space, the installation space are pore structure or slot structure, and live spindle (201) is equipped with and connecting pin (203) matched pin hole,
Connecting pin (203) is in elastic conjunction to pin hole after installation space.
7. according to a kind of slippage type moment spanners with dropping device described in any one of 1 claim, it is characterised in that: institute
Stating torque adjustment mechanism (50) includes being sequentially arranged the first roller (501) 0, mandril (502), adjustment spring in handle (40)
(504), bushing (505) and regulating part (507), respectively there are gaps between handle (40) for bushing (505), mandril (502), adjust
Part (507) is threaded at handle (40) inner bottom, and regulating part (507) presses bushing (505) setting, adjustment spring
(504) it is pressed between bushing (505) and mandril (502), the first roller (501) center line and handle are vertical, first roller
(501) mandril (502) top, and mandril (502) the top surface setting of first roller (501) protrusion, the drive sleeve are inlaid in
(102) outer circumference surface is uniformly provided with several limiting slots, and the first roller (501) matching is fitted in one of limiting slot.
8. a kind of slippage type moment spanners with dropping device according to claim 7, it is characterised in that: the adjusting
Part (507) with bushing (505) contact position circumferencial direction be embedded with multiple second balls (506), second ball (506) and
Bushing (505) is close to.
9. a kind of slippage type moment spanners with dropping device according to claim 7, it is characterised in that: the transmission
Set (102) axis surface is axially embedded with the second roller (103) between each adjacent two limiting slot at position, second roller
(103) it is close to shell.
10. a kind of slippage type moment spanners with dropping device according to claim 7, it is characterised in that: the limit
Position two corner dimensions between groove face and slot bottom of slot differ, and are greater than counterclockwise wherein tightening screw element stress groove face angle [alpha] clockwise
Unscrew screw element stress groove face angle beta.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910711202.XA CN110315459A (en) | 2019-08-02 | 2019-08-02 | A kind of slippage type moment spanners with dropping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910711202.XA CN110315459A (en) | 2019-08-02 | 2019-08-02 | A kind of slippage type moment spanners with dropping device |
Publications (1)
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| CN110315459A true CN110315459A (en) | 2019-10-11 |
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| CN201910711202.XA Pending CN110315459A (en) | 2019-08-02 | 2019-08-02 | A kind of slippage type moment spanners with dropping device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI714442B (en) * | 2020-01-20 | 2020-12-21 | 和嘉興精密股份有限公司 | Torsion structure |
| CN113319774A (en) * | 2021-07-07 | 2021-08-31 | 福建清流汽枪厂有限公司 | Pneumatic wrench for fishbone inner ring of gun |
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| CN87211681U (en) * | 1987-08-05 | 1988-01-27 | 浙江省嵊县工具厂 | Head changeable tube-type torque spanner |
| JP3130536U (en) * | 2007-01-17 | 2007-03-29 | 光市 岡本 | Ratchet wrench |
| CN202753067U (en) * | 2012-06-20 | 2013-02-27 | 东莞市希普思五金机械有限公司 | Tightening wrench |
| CN210850024U (en) * | 2019-08-02 | 2020-06-26 | 天津航天机电设备研究所 | Slipping type torque wrench with falling device |
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| CN87211681U (en) * | 1987-08-05 | 1988-01-27 | 浙江省嵊县工具厂 | Head changeable tube-type torque spanner |
| JP3130536U (en) * | 2007-01-17 | 2007-03-29 | 光市 岡本 | Ratchet wrench |
| CN202753067U (en) * | 2012-06-20 | 2013-02-27 | 东莞市希普思五金机械有限公司 | Tightening wrench |
| CN210850024U (en) * | 2019-08-02 | 2020-06-26 | 天津航天机电设备研究所 | Slipping type torque wrench with falling device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI714442B (en) * | 2020-01-20 | 2020-12-21 | 和嘉興精密股份有限公司 | Torsion structure |
| CN113319774A (en) * | 2021-07-07 | 2021-08-31 | 福建清流汽枪厂有限公司 | Pneumatic wrench for fishbone inner ring of gun |
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