Content of the invention
This application provides a kind of two-way insertion biting connecions gearshift, speed segment during conventional gearshift can be overcome not
Continuously, simplify complicated hydraulic control system and rationally utilize speed difference energy.
Two-way insertion biting connecions gearshift provided herein, this device is used for being arranged on the cogged rotary shaft of tool
On, described gear is set in described rotary shaft and can rotate relative to described rotary shaft, including:It is set in described rotary shaft
And wherein junction surface that one end is fixedly connected with described gear, be set in described rotary shaft and be located at the another of described junction surface
The fairlead at end, it is located at described fairlead away from the one end at described junction surface and being capable of axially opposing mobile week with described rotary shaft
It is connected list to the clutch collar of synchronous axial system, for transmitting the flexible buffer of circumferential power between described junction surface and described fairlead
Unit,
Described junction surface towards described clutch collar one end circumferentially arranged with slot, described clutch collar is towards described junction surface
One end circumferentially correspond to described slot and be provided with gear shaping,
Described fairlead includes:Between multiple guide pads of circumferentially arranging, two neighboring described guide pad for described
Pilot hole that gear shaping passes through, by described guide pad, the middle part of the side towards described clutch collar is circumferentially located towards described junction surface
Direction tilts two formed guiding surfaces, and described pilot hole is correspondingly arranged with described slot,
When described flexible buffer connection unit is in nature elongation state, logical between described slot and corresponding described gear shaping
Cross described guide pad to intercept.
Preferably, the end of described gear shaping is provided with and circumferentially tilts to be formed towards described clutch collar place direction by middle part
Two gear shaping inclined-planes.
Preferably, it is internal and bottom angled that two side walls that described slot is circumferentially arranged are all provided with oriented described slot
Slot inclined-plane.
Preferably, described flexible buffer connection unit is circumferentially disposed along described rotary shaft, and its two ends respectively with described
Fairlead and described junction surface connect.
Preferably, described flexible buffer connection unit is spring or hydraulic pressure.
Preferably, described junction surface is formed circumferentially towards between one end of described clutch collar and described fairlead
Confined space, described junction surface and described fairlead are provided with forced section respectively in described confined space, described flexible buffer
The two ends of connection unit are connected with one of described forced section respectively.
Preferably, described confined space by described junction surface towards described clutch collar one end circumferentially arranged with closed at both ends
Bar shaped chamber and described fairlead cover partly jointly the surrounding of described bar shaped chamber.
Preferably, along the radial direction at described junction surface, described confined space is arranged on the inner side of described slot.
Preferably, described junction surface and described fairlead are two, and are symmetrically arranged at described clutch collar
Two ends, each described junction surface is all connected with a described gear, and the diameter of two described gears is different.
Preferably, described junction surface is connected with described rotary shaft by splined hub.
The technical scheme that the application provides can include following beneficial effect:
Two-way insertion biting connecions gearshift provided herein does not need hydraulic control system, and weight is little, reaction speed
Degree is fast, and shift shock interference is little to simplify structure moreover it is possible to reduce the occlusion number of teeth, and just or in the state of anti-relative velocity
Realize machinery semi-automatic gearshift occlusion.
It should be appreciated that above general description and detailed description hereinafter are only exemplary, can not be limited this
Application.
Specific embodiment
Below by specific embodiment and combine accompanying drawing the application is described in further detail.Described in literary composition
"front", "rear", "left", "right", " on ", D score all with the accompanying drawing of this two-way insertion biting connecions gearshift as reference, wherein
" front " refers to perpendicular to paper upwards, and " afterwards " refers to downward perpendicular to paper.
As depicted in figs. 1 and 2, in rotary shaft 10, set is simultaneously provided with gear wheel 11 and little gear 12, the enforcement of the application
The two-way insertion biting connecions gearshift that example provides, English name is Bilateral-Harpoon-shift, including:With canine tooth
Junction surface 14 that the junction surfaces 13 that are fixedly connected of wheel 11 are fixedly connected with little gear 12,15, two fairleads 16 of clutch collar and
Two flexible buffer connection units 17 collectively form.
Wherein, rotary shaft 10 can be as the driving shaft of power source or driven as power output object
Axle.When rotary shaft 10 is driving shaft, gear wheel 11 and little gear 12 are driven gear, when rotary shaft 10 is driven shaft
When, gear wheel 11 and little gear 12 are driving gear.
Clutch collar 15 is set in rotary shaft 10, and requires to produce relative displacement in axial direction and rotary shaft 10 between,
But relative displacement can not be produced in circumference.Pass through in the present embodiment to adopt splined hub 18 connect rotary shaft 10 and clutch collar 15 with
Realize above-mentioned functions.Gear wheel 11, little gear 12 and the junction surface 13,14 being fixedly connected with the two are all set in rotary shaft 10
On, and respectively positioned at the two ends of clutch collar 15, junction surface 13 and 14 is all towards clutch collar 15.
Junction surface 13 and 14 can be connected with gear wheel 11, little gear 12 by modes such as welding it is also possible to directly with greatly
Gear 11, little gear 12 setting are structure as a whole.Junction surface 13 and 14 is used for being coordinated with clutch collar 15, makes corresponding canine tooth
Wheel 11 or little gear 12 together with clutch collar 15, rotary shaft 10 with identical angular velocity synchronous axial system, therefore, junction surface 13 and 14
On be provided with structure for coordinating with clutch collar 15.
Taking junction surface 13 as a example, as shown in Fig. 2 junction surface 13 circumferentially arranged has one towards one end periphery of clutch collar 15
Circle slot 130.And, in order to reduce impulsive force further, also it is provided with two side walls that slot 130 is circumferentially arranged
Slot inclined-plane 132 to slot 130 inside and bottom angled.For junction surface 14, it is also equipped with above-mentioned fit structure, here
Repeat no more.
In order to complete coordinate, clutch collar 15 towards junction surface 13 one end circumferentially correspond to slot 130 can be distributed setting
One circle gear shaping 150.And, also for reducing impulsive force further, it also is provided with by middle part circumferentially in the end of gear shaping 150
Tilt two formed gear shaping inclined-planes 152 towards clutch collar 15 place direction.
Gear wheel 11 and little gear 12 are respectively used to realize different gear ratio, and it needs moment and other gear cooperations
Rotate, the angular velocity that therefore the two does not maintain like and rotary shaft 10 between at any time.And in order to reduce friction each other
Power, the gear wheel 11 in the present embodiment and little gear 12 are all connected by bearing 19 between rotary shaft 10.Due to junction surface
13rd, 14 be fixedly connected with gear wheel 11 and little gear 12, therefore further also can by bearing 19 extend to junction surface 13,14 with
Between rotary shaft 10.
With continued reference to Fig. 1, two fairleads 16 are located at the two ends of clutch collar 15 respectively, and are located at clutch collar 15 and corresponding
Between the junction surface 13 or 14 of side.Junction surface 13 and 14 is all by flexible buffer connection unit 17 and neighbouring fairlead 16
Connect.
Flexible buffer connection unit 17 is typically circumferentially arranged on the inner lateral areas of junction surface 13,14 and fairlead 16
Domain, and the two ends of flexible buffer connection unit 17 are connected with junction surface 13,14 or fairlead 16 respectively.So, when fairlead 16
When causing rotational angular velocity inconsistent because respective stressing conditions are different and adjacent junction surface 13,14 between, flexible buffer
Connection unit 17 will occur elastic deformation, and energy produced by speed difference is converted into elasticity can be stored, and absorb and sting
The impact energy brought due to larger speed difference during conjunction, makes the junction surface positioned at flexible buffer connection unit 17 two ends simultaneously
13rd, 14 or clutch collar 15 apply a more soft preaceleration torsion so as to speed consecutive variations, reduce last junction surface
13rd, 14 impact when being engaged with clutch collar 15.Further, since can be changed by the elastic deformation of flexible buffer connection unit 17
Become speed, the spacing between therefore two neighboring gear shaping 150 can be bigger than the gear shaping spacing on the lock unit in correlation technique,
To give full play to the elastic deformation variable speed capability of flexible buffer connection unit 17, meanwhile, the quantity of gear shaping 150 also can accordingly subtract
Few, simplify structure.
General flexible buffer connection unit 17 can be from spring, hydraulic pressure and other flexible body being suitable for, the present embodiment
Using hydraulic pressure.Taking junction surface 13 as a example, for the ease of the setting of flexible buffer connection unit 17, can be in junction surface 13 and guiding
Form a confined space circumferentially between set 16, flexible buffer connection unit 17 is placed within this confined space.
Meanwhile, junction surface 13 and fairlead 16 connect a forced section being arranged within confined space respectively (for example to protrude
Step or catch), the two ends of flexible buffer connection unit 17 are connected with a forced section respectively.So, confined space just may be used
Serve as the gathering sill of flexible buffer connection unit 17, the movement to flexible buffer connection unit 17 and deformation direction limit.
As shown in figure 1, it is specific, for the confined space being formed between junction surface 13 and fairlead 16, due to junction surface
Need on 13 to arrange slot 130, therefore its axial dimension is larger, using this feature, the present embodiment is by the main body of confined space
Part is arranged in junction surface 13.Concrete mode is:The bar shaped chamber 134 of closed at both ends is arranged on junction surface 13, will lead afterwards
End to set 16 tightly covers on the opening in bar shaped chamber 134, is collectively forming this confined space.This mode takes full advantage of
The inner space at junction surface 13, simplifies the structure of fairlead 16.
It is described in detail below taking near the fairlead 16 at junction surface 13 as a example.Referring to Fig. 2, fairlead 16 was included along week
The pilot hole 162 that confession gear shaping 150 between multiple guide pads 160 and two neighboring guide pad 160 of arrangement passes through, guiding
Hole 162 is correspondingly arranged with slot 130.Additionally, fairlead 16 also includes the middle part of the side by guide pad 160 towards clutch collar 15
Circumferentially tilt two formed guiding surfaces 164 towards junction surface 13 place direction.
Poor in order to reduce impulsive force and abundant conversion rate, it is in nature elongation state in flexible buffer connection unit 17
When, need between slot 130 and corresponding gear shaping 150 to intercept by guide pad 160.
It is driving shaft or driven shaft according to rotary shaft 10, the gearshift in the present embodiment possesses two kinds of working methods,
As shown in figure 3, being described separately for different situations separately below.
When rotary shaft 10 is driving shaft, power needs to be passed by different gears by rotary shaft 10.Now, greatly
Gear 11 and little gear 12 all moment keep engagement with other gears, and in the case of not carrying out power output simultaneously
Do not rotate with rotary shaft 10.Taking shift to gear wheel 11 as a example, first clutch collar 15 is moved to gear wheel 11 place direction
Dynamic, because clutch collar 15 is asynchronous with the rotation of gear wheel 11, therefore leading on the gear shaping 150 on clutch collar 15 and fairlead 16
Can produce circumferentially displaced between hole 162.
Gear shaping 150 is typically on a gear shaping inclined-plane 152 and guide pad 160 on gear shaping 150 in motor process first
Guiding surface 164 joint, afterwards gear shaping 150 slide along guiding surface 164, be aligned and insert in pilot hole 162, when
So also it is not excluded for gear shaping 150 to be directly aligned and insert in pilot hole 162.Now this fairlead 16 will be with clutch collar 15 with identical
Angular velocity rotate and cause the angular velocity between this fairlead 16 and junction surface 13 inconsistent, cause flexibility therebetween to be delayed
Rush connection unit 17 and produce the impact energy brought due to larger speed difference during deformation absorbs occlusion, and apply for junction surface 13
One more soft preaceleration torsion is so as to angular velocity consecutive variations.After gear shaping 150 is aligned with a slot inclined-plane 132,
Gear shaping 150 just continues to slide in along slot inclined-plane 132 to slot 130, until gear shaping 150 is finally inserted among slot 130, makes to connect
Conjunction portion 13 and gear wheel 11, to rotate with rotary shaft 10 identical angular velocity, so far complete shift process.
When rotary shaft 10 is driven shaft, power needs to be transferred in rotary shaft 10 by different gears.Now, gear wheel
11 and little gear 12 all moment keep engagements with other gears, and as the power being ready at all times as rotary shaft 10
Source, in the case of not carrying out power resources, the angular velocity of gear wheel 11 and little gear 12 is all different from rotary shaft 10.Also with
As a example shifting to gear wheel 11, first clutch collar 15 is moved to gear wheel 11 place direction, due to clutch collar 15 and gear wheel
11 rotation is asynchronous, therefore also can produce circumference between the pilot hole 162 on the gear shaping 150 and fairlead 16 on clutch collar 15
Displacement.
Gear shaping 150 is aligned after guiding directly or by guiding surface 164 in motor process and inserts in pilot hole 162,
Now this clutch collar 15 will and fairlead 16 rotated with identical angular velocity and cause between this fairlead 16 and junction surface 13
Angular velocity inconsistent, cause flexible buffer connection unit 17 therebetween to produce deformation and absorb during occlusion due to larger
The impact energy that speed difference brings, and apply a more soft preaceleration torsion so as to angular velocity continuously becomes for clutch collar 15
Change.After gear shaping 150 is aligned with a slot inclined-plane 132, gear shaping 150 just continues sliding in along slot inclined-plane 132 to slot 130
Dynamic, until gear shaping 150 is finally inserted among slot 130, make clutch collar 16 and rotary shaft 10 with gear wheel 11 identical angle
Speed rotates, and so far completes shift process.
By said process as can be seen that in shift process, clutch collar 15 once only moves to a direction, and be located at
Gear in this direction is coordinated, therefore in order to simplify the structure of gearshift and weight and reduce production cost, this reality
Apply example and be respectively arranged with gear wheel 11 and little gear 12 in the both sides of clutch collar 15, so can be controlled by a clutch collar 15
Two gears of system.
And, because the middle part of the side towards clutch collar 15 for the guide pad 160 is circumferentially towards described junction surface place direction
Two guiding surfaces 164 have been formed slopely it, therefore no matter the relative velocity between axle and gear is positive or negative sense all can be real
The semi-automatic occlusion of shifting gears of existing machinery.
The foregoing is only the preferred embodiment of the application, be not limited to the application, for the skill of this area
For art personnel, the application can have various modifications and variations.All within spirit herein and principle, made any repair
Change, equivalent, improvement etc., should be included within the protection domain of the application.