CN207080526U - A kind of high speed gear shaft directional rotating control device - Google Patents

Abstract

The utility model discloses a kind of high speed gear shaft directional rotating control device, including multi-diameter shaft, gear part and gear self-locking part；Self-locking structure includes driving disc spacing pressing, clutch plate, movable claw, thrust pin, capping.Gear is fixed on multi-diameter shaft, movable claw is installed in the locking groove in clutch plate and movable claw both ends are connected by the spring supporting post on claw with the spring in return spring groove, thrust pin is installed in the thrust pin-and-hole in clutch plate by threaded fastener, driving disc spacing pressing is coordinated by the claw in claw slot and driving disc spacing pressing thereon and movable claw, multi-diameter shaft passes through the assembly of driving disc spacing pressing, clutch plate and movable claw, and end is fixed in remote gear side fixed plate by taper roll bearing.After said structure, the directional-rotation function of gear can be realized.

Description

A kind of high speed gear shaft directional rotating control device

Technical field

The present invention relates to a kind of directional rotating device suitable for axle.

Background technology

Gear is power-transmitting part common in production, is usually located between motor and executing agency, plays transmission Power and the effect of motion；Under many production occasions, clear stipulaties are connected with gear in production requirement main shaft can only be along a certain Direction is rotated, and reverse rotation is strictly prohibited, otherwise easily to machine in itself or producers damage.In reality In, it can realize that the mechanism of above-mentioned function common are ratchet mechanism, one-way clutch etc., these mechanisms more often appear in voluntarily In car, shaping machine, crane and clock and watch, to unidirectional drive and prevent from reversing；However, for ratchet mechanism, its work As when be often accompanied by noise and vibration, working frequency can not be too high, and it is apparently not optimal selection for the directional rotating of high speed shaft； For one-way clutch, because the principle of its one-way only operation is also mainly based upon the intermeshing of adjacent gear with touching Hit, this also determines that its control for high speed shaft directional rotating can not reach good effect, sum it up, current high speed The control of axle directional rotating is primarily present following deficiency：The noise that directional rotating brings is realized by the principle of collision or engagement And vibration problem；The overall dimensions problem bigger than normal brought greatly using space.

The content of the invention

Goal of the invention：For above-mentioned prior art, a kind of high speed gear shaft directional rotating control device is proposed, can be realized The directional-rotation function of gear.

Technical scheme：A kind of high speed gear shaft directional rotating control device, including multi-diameter shaft, gear part and gear Self-locking part, gear part are partly installed in the relative position of multi-diameter shaft with gear self-locking, and the multi-diameter shaft includes gear Assembly bench, self-locking structure fixed station；

The gear part includes gear, the gear assembling that gear is fixed on by way of key connection on multi-diameter shaft Platform；

The self-locking structure includes driving disc spacing pressing, clutch plate, movable claw, return spring thrust pin, capping；The driving disc spacing pressing Including driving disc spacing pressing location structure, claw slot, capping mounting hole and keyway；The driving disc spacing pressing is entered by keyway and the keyway in multi-diameter shaft Row flat key, which coordinates, is fixed on self-locking structure fixed station, and by contacting with gear assembly bench and gear face axially determine Position；

The clutch plate endface position is circumferentially disposed with 4-6 return spring groove, is disposed between adjacent return spring groove Claw, same return spring groove is divided into two parts and locking groove by locking groove is provided with movable claw；In each locking groove It is axially arranged with thrust pin-and-hole and thrust pin slideway along clutch plate, thrust pin-and-hole and thrust pin slideway are located on same axis；If Rotating shaft is determined clockwise to rotate forward, and the central axis of thrust pin-and-hole and thrust pin slideway inverts side in the axis of locking groove partially； Thrust pin-and-hole is provided with internal thread close to the position of driven side surface；

The main part of the movable claw be rectangle, and its length circumferentially is less than the arc length of its place locking groove, The height that movable claw stretches out locking groove is about 1/2 of the claw height in locking groove, the length of movable claw axially etc. In the depth of locking groove axially；One end of movable claw main part is distributed two intersecting through holes, and two through holes are edge Axially extending bore, the radius size of two through holes is equal, and the circle center line connecting distance of two through holes is less than through-hole diameter length；It is described logical Hole is at two sides that two end faces of movable claw have on rounding and movable claw perpendicular to face where the through hole A spring supporting post is respectively distributed with, spring supporting post circular in cross-section is overall curved, and the curvature of its arc and its institute Return spring groove curvature it is consistent；The center of two through hole cross-shaped portions on movable claw can be with the thrust on clutch plate Sell the central axis alignment of slideway；Movable claw is installed on the locking groove of clutch plate and its both ends is fixed by return spring, returns Length under the nature of position spring is equal to the arc length of return spring groove, and its one end passes through spring supporting post, and the other end passes through Spring positioning table；

The capping cylindrical form, centre bore are in shoulder hole, including ladder shaft through-hole, bearing mounting hole and screwed hole, The internal diameter that external diameter is equal to the capping mounting hole of driving disc spacing pressing is covered, ladder shaft through-hole internal diameter is straight more than the multi-diameter shaft through the through hole Footpath, on the end face contacted in capping with driving disc spacing pressing uniform 4-6 countersunk head tapped through hole, capping pass through the spiral shell on bolt and clutch plate Pit is fixedly connected；

Clutch plate is fixed together with capping through multi-diameter shaft and by the claw slot nested arrangements on claw and driving disc spacing pressing thereon； The pilot hole internal diameter of clutch plate is more than the diameter for the multi-diameter shaft being in contact with it, and passes through between the bearing mounting hole and multi-diameter shaft of capping Single-row tapered roller bearing connects；

Thrust pin includes threaded fastener, spring, positioning boss, thrust pin body and the hemispherical head at both ends；Thrust pin sheet Body is divided into two parts by positioning boss, and the internal thread in the clutch plate thrust pin through hole of threaded fastener and self-locking device connects Fixed, the spring is socketed on thrust pin body, and between threaded fastener and positioning boss, spring is naturally flexible Positioning boss end face contacts just with the transition end face of thrust pin slideway and thrust pin-and-hole during state；Positioning boss opposite side stops Promote body and hemispherical head is stretched into thrust pin slideway, when spring is in retracted position, the length of the part can be deep enough Into the through hole of movable claw.

Further, claw, which is located on the spring positioning table of side clockwise, is provided with pressure sensor.

Further, the both ends of multi-diameter shaft are equipped with radial motion constraint mechanism.

Further, the radial motion constraint mechanism of gear part side includes nearly gear side fixed plate, list Row tapered roller bearing, back-up ring and baffle plate；The centre bit of the nearly gear side fixed plate is equipped with two shoulder holes and in diameter Less centre bore surrounding carries 6-8 screwed hole；The baffle plate includes disc structure and bearing location structure, on disc structure Screwed hole distribution number and adjacent screw holes interval it is consistent with the screwed hole distribution situation in nearly gear side fixed plate；

Back-up ring and single-row tapered roller bearing are successively set on the side of gear, and are respectively arranged in the back-up ring on multi-diameter shaft On erecting bed and bearing fixed station；Single-row tapered roller bearing inner ring is interference fitted with bearing fixed station, outer ring and nearly gear Shoulder hole in the fixed plate of side is coordinated, and the bearing location structure in baffle plate penetrates Roller Shaft from the outside of nearly gear side fixed plate Centre bore where bearing outer-ring is simultaneously bolted disc structure is connected and fixed with the screwed hole in nearly gear side fixed plate.

Further, the radial motion constraint mechanism of the gear self-locking part side includes remote gear side fixed plate, list Row tapered roller bearing, thrust ball bearing；The centre bit of the remote gear side fixed plate is equipped with two concentric shoulder holes, respectively For single-row tapered roller bearing mounting hole and thrust ball bearing mounting hole, and several are distributed with same circumference on the inside of riser The blind hole of same diameter；

The end face of the clutch plate is provided with the clutch plate positioning table of a circle annular, and the diameter of the clutch plate positioning table is big In the diameter of the multi-diameter shaft supporting with it, thrust ball bearing shaft washer is enclosed on the blowout patche outer end on clutch plate positioning table and passing through bearing Face is positioned with clutch plate positioning table end contact, and thrust ball bearing inner ring is interference fitted with clutch plate positioning table；Thrust ball bearing The thrust ball bearing mounting hole of seat ring and remote gear side fixed plate coordinate and contact, by pacifying installed in single-row tapered roller bearing Fill the single-row tapered roller bearing and ladder axis connection in hole.

Beneficial effect：After said structure, the directional-rotation function of gear can be realized, is had when main shaft inverts automatic Warning function, prevent the reverse rotation of main shaft from being damaged to equipment and personnel；The structure can also shorten the braking of main shaft simultaneously Time, it is very helpful for reducing nonproductive time and improving efficiency tool.

Brief description of the drawings

Fig. 1 is the half section structure diagram of the utility model high speed gear shaft directional rotating control device；

Fig. 2 is the structural representation of multi-diameter shaft；

Fig. 3 is clutch plate-return spring-pawl assembling structure schematic diagram；

Fig. 4 is the structural representation of nearly gear side fixed plate, and (a) is front view, and (b) is side view；

Fig. 5 is the structural representation of remote gear side fixed plate, and (a) is front view, and (b) is side view；

Fig. 6 is the structural representation of driving disc spacing pressing, and (a) is front view, and (b) is side view；

Fig. 7 is the structural representation of clutch plate, and (a) is front view, and (b) is side view；

Fig. 8 is the structural representation of pawl, and (a) is front view, and (b) is side view；

Fig. 9 is the structural representation of thrust pin；

Figure 10 is the structural representation of capping, and (a) is front view, and (b) is side view；

Figure 11 is the structural representation of baffle plate, and (a) is front view, and (b) is side view.

Embodiment

Further explanation is done to the utility model below in conjunction with the accompanying drawings.

As shown in figure 1, a kind of high speed gear shaft directional rotating control device, including multi-diameter shaft, gear part and tooth Self-locking part is taken turns, gear part is partly installed in the relative position of same multi-diameter shaft with gear self-locking.Multi-diameter shaft 1 includes axle Hold erecting bed 1-1, back-up ring erecting bed 1-2, gear assembly bench 1-3, self-locking structure fixed station 1-4, each assembling stand of multi-diameter shaft Cross section is circle, and centered on gear assembly bench 1-3, both sides diameter of section successively decreases successively along axis direction.

Nearly gear side fixed plate 2 is installed on the right side of gear part, and remote gear side fixed plate 10 is installed on gear certainly The left side of lock section point.Nearly gear side 2 profiles of fixed plate are unlimited, can be a series of shapes such as rectangle or circle.Such as Fig. 4 institutes Show, ladder shaft through-hole 2-1 and baffle plate mounting hole 2-2, baffle plate mounting hole 2-2 tetra- are provided with the center of nearly gear side fixed plate 2 Week carries 6-8 screwed hole 2-3.As shown in figure 11, baffle plate 8 includes disc structure 8-1 and bearing location structure 8-2, disk knot Screwed hole 8-3 distribution numbers and adjacent screw holes interval on structure 8-1 and the screwed hole distribution situation in nearly gear side fixed plate 2 Unanimously.Remote gear side 10 profiles of fixed plate are unlimited, as shown in figure 5, there are two concentric shoulder holes its center, it is respectively single Row tapered roller bearing mounting hole 10-1 and thrust ball bearing mounting hole 10-2, and be distributed with the inside of riser on same circumference The blind hole 10-3 of several same diameters, diameter are much smaller than ladder bore dia.

As shown in figure 1, gear part includes gear 5, gear 5, back-up ring 4, single-row tapered roller bearing 3 are installed successively In the side of multi-diameter shaft 1, wherein, the gear assembly bench 1-3 that gear 5 is fixed on by way of key connection on multi-diameter shaft 1, back-up ring 4 The back-up ring erecting bed 1-2 and bearing fixed station 1-1 being installed on successively with single-row tapered roller bearing 3 on multi-diameter shaft 1, single-row circle The inner ring of taper roller bearing 3 is interference fitted with bearing fixed station 1-1, and outer ring is matched somebody with somebody with the shoulder hole in nearly gear side fixed plate 2 Close, centre bore where the bearing location structure 8-2 in baffle plate 8 penetrates the outer ring of roller bearing 3 from the nearly outside of gear side fixed plate 2 is simultaneously It is bolted and the screwed hole 8-3 on disc structure 8-1 is connected and fixed with the screwed hole in nearly gear side fixed plate 2； Baffle plate 8 plays the role of positioning, and prevents bearing 3 from being slided along axis direction.

As shown in figure 1, self-locking structure include driving disc spacing pressing 6-1, clutch plate 6-2, movable claw 6-3, return spring 6-4, only Promote 6-5, capping 6-6, taper roll bearing 6-7.As shown in fig. 6, driving disc spacing pressing 6-1 includes driving disc spacing pressing location structure 6-1-1, pawl Groove 6-1-2, capping mounting hole 6-1-3 and keyway 6-1-4.As shown in fig. 7, clutch plate 6-2 includes claw 6-2-1, locking groove 6- 2-2, screwed hole 6-2-3, return spring groove 6-2-4, spring positioning table 6-2-5, clutch plate positioning table 6-2-6, pilot hole 6-2- 7th, thrust pin-and-hole 6-2-8 and thrust pin slideway 6-2-9.

Driving disc spacing pressing 6-1 carries out flat key with merga pass and gear assembly bench by the keyway in keyway 6-1-4 and multi-diameter shaft 1 1-3 and gear face contact carry out axially position.As shown in Figure 10,6-6 cylindrical forms are covered, centre bore is in shoulder hole, Including ladder shaft through-hole 6-6-1, bearing mounting hole 6-6-2 and screwed hole 6-6-3, capping 6-6 external diameters are equal to the capping of driving disc spacing pressing Mounting hole 6-1-3 internal diameter, bearing mounting hole 6-6-2 internal diameters are slightly less than the single-row tapered roller bearing 6-7 outer rings coordinated with it Diameter, ladder shaft through-hole 6-6-1 internal diameters are more than the multi-diameter shaft 1-5 diameters through the through hole.Connect in capping 6-6 with driving disc spacing pressing 6-1 Uniform 4-6 countersunk head tapped through hole 6-6-3 on tactile end face, capping 6-6 are consolidated by bolt and the screwed hole 6-2-3 on clutch plate Fixed connection.

As shown in fig. 7, clutch plate 6-2 endface positions are disposed with 4-6 return spring groove 6-2-4, adjacent return spring groove Between be disposed with claw 6-2-1, same return spring groove is divided into two parts and locking groove 6-2-2 by locking groove 6-2-2 to be installed There is movable claw 6-3.Each locking groove 6-2-2 interior edge clutch plates 6-2 is axially arranged with thrust pin-and-hole 6-2-8 and thrust pin slideway 6-2-9, thrust pin-and-hole 6-2-8 and thrust pin slideway 6-2-9 are located on same axis；Clutch plate thrust pin-and-hole 6-2-8 and thrust It is through hole to sell slideway 6-2-9, and thrust pin-and-hole 6-2-8 is provided with internal thread close to the position of clutch plate left end face.Set rotating shaft Clockwise to rotate forward, thrust pin-and-hole 6-2-8 and thrust pin slideway 6-2-9 central axis are partially in locking groove 6-2-2 axis Side is inverted, i.e. thrust pin-and-hole 6-2-8 is not located at centers of the locking groove 6-2-2 along arc direction, but is partial to axle The position of reverse rotation.

As shown in figure 8, movable claw main part 6-3-3 overall structures are rectangle, its length circumferentially is less than it Place locking groove 6-2-2 arc length, the height that movable claw stretches out locking groove is about 1/2 of the claw height in locking groove, can The length of dynamic claw axially is equal to the depth of locking groove 6-2-2 axially.The one of movable claw main part 6-3-3 The intersecting through hole 6-3-4 of end distribution two, two through holes be along can multi-diameter shaft axial direction through hole, the radius of two through holes is big Small equal, the circle center distance of two through holes is less than through-hole diameter length, radian and the locking groove 6- of the circle center line connecting of two through holes 2-2 curvature is consistent.Through hole 6-3-4 has rounding 6-3-2 in two end faces of movable claw, and on movable claw perpendicular to A spring supporting post 6-3-1 is respectively distributed with where through hole at two sides in face, spring supporting post 6-3-1 cross sections are in circle Shape, it is overall curved, and the curvature of its arc is consistent with the curvature of the return spring groove 6-2-4 where it, return spring groove 6- 2-4 groove width is approximately equal to groove depth.Thrust pin slideway on the center and clutch plate of two through hole 6-3-4 cross-shaped portions on movable claw 6-2-9 central axis alignment.Movable claw 6-3 is installed on the locking groove 6-2-2 of clutch plate and its both ends passes through return spring 6-4 is fixed, and the length under return spring 6-4 nature is equal to return spring groove 6-2-4 arc length, and spring outer diameter is slightly less than The groove width of return spring groove, its one end is through spring supporting post 6-3-1 and is installed on return spring groove 6-2-4, and the other end passes through Spring positioning table 6-2-5 positioned at claw 6-2-1 sides.

Clutch plate 6-2 is through multi-diameter shaft 1 and nested with the claw slot 6-1-2 on driving disc spacing pressing 6-1 by claw 6-2-1 thereon Coordinate and fix.Clutch plate 6-2 end face is provided with clutch plate the positioning table 6-2-6, clutch plate 6-2 of a circle annular pilot hole 6- 2-7 internal diameters are slightly larger than the diameter for the multi-diameter shaft 1 being in contact with it, and clutch plate and through multi-diameter shaft 1 and by bearing erecting bed 1-1 push away Power ball bearing 7 carries out axial restraint, and the blowout patche of thrust ball bearing 7 is enclosed on the blowout patche on clutch plate positioning table 6-2-6 and passing through bearing Outer face positions with clutch plate positioning table 6-2-6 end contacts, the inner ring of thrust ball bearing 7 and clutch plate positioning table 6-2-6 interference Coordinate；The seat ring of thrust ball bearing 7 coordinates with the thrust ball bearing mounting hole 10-2 of remote gear side fixed plate 10 to be contacted, i.e., remote tooth Take turns the thrust ball bearing mounting hole 10-2 in side fixed plate 10 and the thrust ball bearing end on clutch plate positioning table 6-2-6 Face is contacted, and constraint is axially moved；Pass through the single-row tapered roller bearing 9 in single-row tapered roller bearing mounting hole 10-1 With ladder axis connection.Connected between capping 6-6 bearing mounting hole 6-6-2 and multi-diameter shaft 1 by single-row tapered roller bearing 6-7 Connect.

Multi-diameter shaft 1 sequentially passes through the single-row tapered roller bearing 3 being fixed in nearly gear side inner vertical plate 2, back-up ring 4, gear 5th, self-locking structure, thrust ball bearing 7 and the list for being fixed on remote gear cant board 10 with the cooperation of single-row tapered roller bearing 9 in end In row tapered roller bearing mounting hole 10-1.

Thrust pin 6-5 includes threaded fastener 6-5-1, spring 6-5-2, positioning boss 6-5-3, thrust pin body 6-5-4 With the hemispherical head 6-5-5 at both ends.Thrust pin body 6-5-4 is divided into two parts by positioning boss 6-5-3, and two parts length differs. Internal thread in the clutch plate thrust pin through hole 6-2-8 of threaded fastener 6-5-1 and self-locking device is connected, screw threads for fastening Part 6-5-1 end face is concordant with the end face of the nearly clutch plate positioning table 6-2-6 sides of clutch plate 6-2.Thrust pin body 6-5-4 longer ends Spring through threaded fastener 6-5-1 and with threaded fastener 6-5-1 end contacts, body diameter are slightly less than screw threads for fastening Part 6-5-1 diameter of bores, the two is connected using gap；The spring other end and positioning boss 6-5-3 end contacts；Should after installation Ensure spring 6-5-2 positioning boss 6-5-3 end faces and thrust pin slideway 6-2-9 and thrust pin-and-hole 6-2- in natural retracted position 8 transition end face contacts just, and there is certain distance the above-mentioned two end faces of spring 6-5-2 in the case of compression.Thrust pin sheet The length of body 6-5-4 shorter parts is more than clutch plate thrust pin slideway 6-2-9 and extremely may be used with thrust pin-and-hole 6-2-8 transition end face Dynamic distance between claw 6-3 and clutch plate contact face, when spring is in compressive state, this structure still ensures that thrust pin hemisphere Head 6-5-5 can extend two through hole 6-3-4 intersections on movable claw 6-3, when spring 6-5-2 is in nature retracted position, Shorter part can be deep into movable claw 6-3 through hole 6-3-4 in thrust pin body 6-5-4, it is ensured that length is enough.Thrust Sell the latch slideway 6-2-9 partially passed through in clutch plate shorter in body 6-5-4 and the hemispherical head 6-5-5 of its end with can Two through hole 6-3-4 intersections rounded corners tap is touched in dynamic claw 6-3.In thrust pin body 6-5-4 the length of longer portion with Positioning boss length in axial direction and equal to blind hole 10-3 depth and thrust pin-and-hole 6-2-8 depth sums, hemispherical head 6-5-5 Diameter be slightly less than the internal diameter of blind hole 10-3 in remote gear side fixed plate 2-2.

Claw 6-2-1, which is located on the spring positioning table 6-2-5 of side clockwise, is provided with pressure sensor, you can dynamic claw 6-3 sides contact the return spring of side with clutch plate locking groove 6-2-2 groove faces in itself and spring positioning table 6-2-5 contact positions Pressure sensor is provided with, to detect the change of the end spring pressure, i.e., the end at the spring in pressured state in reversion End installation pressure sensor.When axle inverts, the pressure sensor being connected with spring is capable of the change of detection spring reversion stress And alarm, it is further processed by staff.

Operation principle：

During normal operation：Multi-diameter shaft 1 rotates, the gear 5 and driving disc spacing pressing 6-1 coordinated with multi-diameter shaft 1 by key connection mode With rotation, the clutch plate 6-2 coordinated with multi-diameter shaft 1 by the capping 6-6 of bearing fit and gap does not rotate.Driving disc spacing pressing 6-1 Before rotation, i.e., before multi-diameter shaft 1 rotates, the hemispherical head 6-5-5 of thrust pin 6-5 one end is located at the blind hole 10- of remote gear cant board 10 In 3, the hemispherical head 6-5-5 of the thrust pin 6-5 other ends is located at clutch plate 6-2 thrust pin slideway 6-2-9, positioned at thrust pin 6-5 On spring 6-5-2 the hemispherical head 6-5-5 of thrust pin slideway 6-2-9 sides is stretched into by movable claw main part due to thrust pin The spacing of 6-3-3 is divided to be in compressive state；Movable claw 6-3 and clutch plate locking groove 6-2-2 groove side single-contact.

After multi-diameter shaft 1 rotates a certain angle, the claw slot 6-1-2 and movable claw 6-3 on driving disc spacing pressing 6-1 progressively connects Touch, movable claw 6-3 under the claw slot 6-1-2 of driving disc spacing pressing drive clutch plate 6-2 locking groove 6-2-2 along arc to rotation Turn.Due to movable claw 6-3 sides and the one-side contact of locking groove 6-2-2 groove faces, so that movable claw 6-3 is in stop Unidirectional during groove 6-2-2 motion, movable claw 6-3 can not by the stop of locking groove 6-2-2 grooves side during counter motion Continue to move, this guarantees the directional rotating function of gear.Due to thrust pin 6-5 circumferentially direction without motions, movable card When pawl 6-3 circumferentially rotates, the relative position of the two changes, by thrust pin hemispherical head 6-5-5 under original state with can Dynamic claw main part 6-3-3 contact is changed into hemispherical head 6-5-5 and contacted with movable claw 6-3 through hole 6-3-4, and with Driving disc spacing pressing 6-1 to continue to rotate, thrust pin 6-5 is gradually increased until half with movable claw 6-3 through-hole aperture 6-3-4 contacted Bulb 6-5-5 can be stretched into the through hole 6-3-4 of movable claw under spring 6-5-2 promotions.When thrust pin hemispherical head 6-5-2 stretches When entering movable claw 6-3 through hole 6-3-4, the hemispherical head of the thrust pin 6-5 other end is from fixed remote gear riser 10 Withdrawn from blind hole 10-3, now thrust pin 6-5 be fully located at clutch plate 6-2 thrust pin slideway 6-2-9 and movable claw two Individual through hole 6-3-4 centre position so that it is movable to limit to be inserted into fixed remote gear riser 10 by thrust pin 6-5 originally Claw 6-3 and the state of clutch plate 6-2 rotary motions are broken, and it is 1 that clutch plate 6-2 is changed into the free degree by original zero free degree State, driving disc spacing pressing 6-1 rotary motion will not be hindered by clutch plate 6-2 and movable claw 6-3, and then can deduce and master Moving plate 6-1 also can normally be rotated by the multi-diameter shaft 1 of key connection.So under specific direction, multi-diameter shaft 1 can be with moving gear 5 realize free one-directional rotation.

When opposite direction is moved, because thrust pin 6-5 is located at clutch plate thrust pin slideway 6-2-9 and remote gear cant board simultaneously In blind hole 10-3, limitation clutch plate 6-2 can be played and rotated；Movable claw 6-3 and clutch plate locking groove 6-2-4 list simultaneously The design of contacts side surfaces cause movable claw 6-3 can not counter motion enter, this ensure that thrust pin hemispherical head 6-5-5 can not Into movable claw intersecting via 6-3-4 centre position, but contacted all the time with movable claw main part 6-3-3, so Design hemispherical head 6-5-5 can not be withdrawn from from remote gear cant board 10, thrust pin 6-3 can limit all the time clutch plate 6-2 and Movable claw 6-3 rotation.Clutch plate 6-2 limited in rotation, rotated also with the clutch plate 6-2 driving disc spacing pressing 6-1 coordinated by neck It can be restricted, and then limit driving disc spacing pressing 6-1 rotation, and then limit the multi-diameter shaft 1 with driving disc spacing pressing by key connection Rotation, realize the function of backward hold.

Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and Retouching also should be regarded as the scope of protection of the utility model.

Claims (5)

1. A kind of 1. high speed gear shaft directional rotating control device, it is characterised in that：Including multi-diameter shaft, gear part and gear Self-locking part, gear part are partly installed in the relative position of multi-diameter shaft with gear self-locking, and the multi-diameter shaft (1) includes tooth Take turns assembly bench (1-3), self-locking structure fixed station (1-4)；

   The gear part includes gear (5), the tooth that gear (5) is fixed on by way of key connection on multi-diameter shaft (1) Take turns assembly bench (1-3)；

   The self-locking structure includes driving disc spacing pressing (6-1), clutch plate (6-2), movable claw (6-3), return spring (6-4) thrust pin (6-5), capping (6-6)；The driving disc spacing pressing (6-1) includes driving disc spacing pressing location structure (6-1-1), claw slot (6-1-2), capping installation Hole (6-1-3) and keyway (6-1-4)；The driving disc spacing pressing (6-1) is carried out by the keyway in keyway (6-1-4) and multi-diameter shaft (1) Flat key, which coordinates, is fixed on self-locking structure fixed station (1-4), and by contacting progress with gear assembly bench (1-3) and gear face Axially position；

   Clutch plate (6-2) endface position is circumferentially disposed with 4-6 return spring groove (6-2-4), adjacent return spring groove Between be disposed with claw (6-2-1), same return spring groove is divided into two parts and locking groove (6-2-2) by locking groove (6-2-2) In movable claw (6-3) is installed；Each locking groove (6-2-2) interior edge clutch plate (6-2) is axially arranged with thrust pin-and-hole (6-2-8) And thrust pin slideway (6-2-9), thrust pin-and-hole (6-2-8) and thrust pin slideway (6-2-9) are located on same axis；Setting turns Axle is clockwise to rotate forward, and the central axis of thrust pin-and-hole (6-2-8) and thrust pin slideway (6-2-9) is partially at locking groove (6-2-2) Axis reversion side；Thrust pin-and-hole (6-2-8) is provided with internal thread close to the position of driven side surface；

   The main part (6-3-3) of the movable claw (6-3) be rectangle, and its length circumferentially is less than its place locking groove The arc length of (6-2-2), the height that movable claw (6-3) stretches out locking groove is about 1/2 of the claw height in locking groove, movable card The length of pawl axially is equal to the depth of locking groove (6-2-2) axially；One end of movable claw main part (6-3-3) Two intersecting through holes (6-3-4) are distributed, two through holes are through hole vertically, and the radius size of two through holes is equal, and two logical The circle center line connecting distance in hole is less than through-hole diameter length；The through hole (6-3-4) has rounding in two end faces of movable claw On angle (6-3-2) and movable claw (6-3) one is respectively distributed with two sides in face where the through hole (6-3-4) Spring supporting post (6-3-1), spring supporting post (6-3-1) circular in cross-section is overall curved, and the curvature of its arc and its The curvature of the return spring groove (6-2-4) at place is consistent；The center of two through hole (6-3-4) cross-shaped portions on movable claw can Alignd with the central axis of the thrust pin slideway (6-2-9) on clutch plate；Movable claw (6-3) is installed on the locking groove of clutch plate (6-2-2) and its both ends are fixed by return spring (6-4), and the length under the nature of return spring (6-4) is equal to return The arc length of spring groove (6-2-4), its one end pass through spring supporting post (6-3-1), and the other end passes through spring positioning table (6-2-5)；

   Described capping (6-6) cylindrical form, centre bore is in shoulder hole, including ladder shaft through-hole (6-6-1), bearing mounting hole (6-6-2) and screwed hole (6-6-3), capping (6-6) external diameter are equal to the internal diameter of the capping mounting hole (6-1-3) of driving disc spacing pressing, ladder Shaft through-hole (6-6-1) internal diameter is more than the ladder shaft diameter through the through hole, the end contacted in capping (6-6) with driving disc spacing pressing (6-1) Uniform 4-6 countersunk head tapped through hole (6-6-3) on face, capping (6-6) are solid by the screwed hole (6-2-3) on bolt and clutch plate Fixed connection；

   Clutch plate (6-2) through multi-diameter shaft (1) and passes through claw (6-2-1) thereon and driving disc spacing pressing (6-1) together with capping (6-6) On claw slot (6-1-2) be nested fix；Pilot hole (6-2-7) internal diameter of clutch plate (6-2) is more than the ladder being in contact with it The diameter of axle (1), pass through single-row tapered roller bearing between the bearing mounting hole (6-6-2) and multi-diameter shaft (1) of capping (6-6) (6-7) is connected；

   Thrust pin (6-5) includes threaded fastener (6-5-1), spring (6-5-2), positioning boss (6-5-3), thrust pin body The hemispherical head at (6-5-4) and both ends (6-5-5)；Thrust pin body (6-5-4) is divided into two parts, spiral shell by positioning boss (6-5-3) Line fastener (6-5-1) is connected with the internal thread in the clutch plate thrust pin through hole (6-2-8) of self-locking device, the bullet Spring (6-5-2) is socketed on thrust pin body (6-5-4), and positioned at threaded fastener (6-5-1) and positioning boss (6-5-3) it Between, spring (6-5-2) positioning boss (6-5-3) end face and thrust pin slideway (6-2-9) and thrust pin in natural retracted position The transition end face in hole (6-2-8) contacts just；The thrust pin body (6-5-4) and hemisphere of positioning boss (6-5-3) opposite side Head (6-5-5) is stretched into thrust pin slideway (6-2-9), and when spring (6-5-2) is in retracted position, the length of the part can It is deep into movable claw (6-3) through hole (6-3-4).
2. 2. high speed gear shaft directional rotating control device according to claim 1, it is characterised in that：Claw (6-2-1) position In being provided with pressure sensor on the spring positioning table (6-2-5) of side clockwise.
3. 3. high speed gear shaft directional rotating control device according to claim 1 or 2, it is characterised in that：The two of multi-diameter shaft End is equipped with radial motion constraint mechanism.
4. 4. high speed gear shaft directional rotating control device according to claim 3, it is characterised in that：Gear part one The radial motion constraint mechanism of side include nearly gear side fixed plate (2), single-row tapered roller bearing (3), back-up ring (4) and Baffle plate (8)；The centre bit of the nearly gear side fixed plate (2) is equipped with two shoulder holes and in the less centre bore surrounding band of diameter There is 6-8 screwed hole (2-1)；The baffle plate (8) includes disc structure (8-1) and bearing location structure (8-2), disc structure Screwed hole (8-3) distribution number and adjacent screw holes interval on (8-1) and the screw thread pore size distribution in nearly gear side fixed plate (2) Situation is consistent；

   Back-up ring (4) and single-row tapered roller bearing (3) are successively set on the side of gear (5), and are respectively arranged in multi-diameter shaft (1) On back-up ring erecting bed (1-2) and bearing fixed station (1-1) on；Single-row tapered roller bearing (3) inner ring and bearing fixed station (1-1) is interference fitted, and outer ring is coordinated with the shoulder hole on nearly gear side fixed plate (2), the bearing positioning knot in baffle plate (8) Centre bore where structure (8-2) penetrates roller bearing (3) outer ring from the outside of nearly gear side fixed plate (2) is simultaneously bolted circle Dish structure (8-1) is connected and fixed with the screwed hole in nearly gear side fixed plate (2).
5. 5. high speed gear shaft directional rotating control device according to claim 4, it is characterised in that：The gear is from lock section Divide the radial motion constraint mechanism of side to include remote gear side fixed plate (10), single-row tapered roller bearing (9), thrust ball bearing (7)；The centre bit of the remote gear side fixed plate (10) is equipped with two concentric shoulder holes, respectively single-row tapered roller bearing Mounting hole (10-1) and thrust ball bearing mounting hole (10-2), and it is identical straight that several are distributed with the inside of riser on same circumference The blind hole (10-3) in footpath；

   The end face of the clutch plate (6-2) is provided with the clutch plate positioning table (6-2-6) of a circle annular, the clutch plate positioning table The diameter of (6-2-6) is more than the diameter of the multi-diameter shaft (1) supporting with it, and thrust ball bearing (7) blowout patche is enclosed on clutch plate positioning table Positioned on (6-2-6) and by the blowout patche outer face and clutch plate positioning table (6-2-6) end contact of bearing, thrust ball bearing (7) inner ring is interference fitted with clutch plate positioning table (6-2-6)；The seat ring of thrust ball bearing (7) and remote gear side fixed plate (10) Thrust ball bearing mounting hole (10-2) coordinate contact, pass through the list in single-row tapered roller bearing mounting hole (10-1) Row tapered roller bearing (9) and ladder axis connection.