CN206072155U - Overload protection arrangement, power transmission shaft and vehicle - Google Patents
Overload protection arrangement, power transmission shaft and vehicle Download PDFInfo
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- CN206072155U CN206072155U CN201621099168.3U CN201621099168U CN206072155U CN 206072155 U CN206072155 U CN 206072155U CN 201621099168 U CN201621099168 U CN 201621099168U CN 206072155 U CN206072155 U CN 206072155U
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- roller
- overload protection
- protection arrangement
- alveolus
- end component
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Abstract
This utility model is related to actuating device field, there is provided a kind of overload protection arrangement, power transmission shaft and vehicle, the overload protection arrangement include：The drive end component being coaxially disposed and driven end component, are formed with alveolus circumferentially on the end face of one of which, another one is with retainer corresponding with alveolus；Roller, the roller are correspondingly arranged in retainer；And, hold down assembly, it is described to hold down assembly in the side relative with the end face for being formed with the alveolus that elastic reaction, in the roller, and makes the roller and the end face keep contacting vertically.Overload protection arrangement described in the utility model transmits power by the roller being arranged between drive end component and driven end component; and the roller tends to keeping coordinating with its alveolus and retainer under the effect of holding down assembly; overload when axial movement by way of depart from the cooperation of alveolus and disconnect and being connected; power not only can reliably be transmitted interior in a big way, be also formed as good overload protection.
Description
Technical field
This utility model is related to transmission art field, more particularly to a kind of overload protection arrangement.On this basis, originally
Utility model further relates to the power transmission shaft with the overload protection arrangement and the vehicle with the power transmission shaft.
Background technology
In the equipment such as such as vehicle, overload protection arrangement need to be generally set in power transmission path, to avoid load excessive
Damage to power source, actuated element etc..
Using friction element transmission and a kind of relatively conventional overload protection mode of overload protection.During normal operation, actively
The friction element at end transmits power with the friction element patch merga pass frictional force of driven end；When the load that driven end is carried exceedes
After certain value, the maximal friction between friction element is not enough to drive the load to run well, and so as to produce relative slip, keeps away
Exempt to produce excessive counteracting force to power source.
With the development of electronic control technology, also it is widely used using the overload protection mode of ECU.In short, passing through
ECU can limit the power output of the power sources such as electromotor, motor, so that the power maintenance of its output is reasonable
Within the scope of.
However, there is number of drawbacks in above-mentioned prior art.For example, with the abrasion of friction element, its reliable transmission meeting
Constantly reduce, the maximum power value that can be transmitted can also be decreased；The maximum power limitation that can receive of load compared with
Greatly, cause actuating device range of application narrower；Forms of protection is single, only by cutting off drive path or controlling power source output
Mode implements overload protection.
Utility model content
In view of this, this utility model is directed to a kind of overload protection arrangement, with higher reliable transmission and
Larger transmission range.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of overload protection arrangement, including：The drive end component being coaxially disposed and driven end component, the end face of one of which
On be formed with alveolus circumferentially, another one is with retainer corresponding with the alveolus；Roller, the roller correspondence set
It is placed in the retainer；And, hold down assembly, it is described to hold down assembly relative with the end face for being formed with the alveolus
Elastic reaction, in the roller, and makes the roller and the end face keep contacting vertically for side.
Further, the alveolus is formed on the drive end component, and the driven end component has the retainer.
Further, the drive end component includes adpting flange and the outrigger for being coaxially disposed and being fixedly secured to one another, institute
State alveolus to be formed on the outrigger.
Further, the driven end component includes the link being fixedly connected with the retainer.
Further, the outer peripheral edge of the retainer is formed with the multiple arcs for accommodating the roller being evenly arranged
Groove.
Further, described holding down assembly keep circle including butterfly spring and displacement, and the butterfly spring is by the shifting
Position keeps circle elastic reaction in the roller, and the displacement keeps ring to arrange around the retainer and can be in the roller
Retroaction under slide axially.
Further, the adjustment bolt for also including adjustment flange and being connected on the adjustment flange that holds down assembly,
One end of the adjustment bolt is resisted against on the butterfly spring to adjust the butterfly by turning the adjustment bolt
Elastic force of the spring effect on the roller.
Further, the overload protection arrangement is also included for detecting the sensing element of the axial location of the roller
And/or for the switch element of the power source of the drive end component is closed according to the axial location.
Relative to prior art, overload protection arrangement described in the utility model has the advantage that：
(1) overload protection arrangement described in the utility model is by being arranged between drive end component and driven end component
Roller transmits power, and the roller tends to keeping coordinating with its alveolus and retainer under the effect of holding down assembly, logical in overload
Cross axial movement mode depart from the cooperation of alveolus and disconnect and being connected, not only can reliably transmit interior in a big way
Power, is also formed as good overload protection.
(2) overload protection arrangement described in the utility model can be adjusted to hold down assembly using adjustment bolt and be applied to roller
On amount of force, the ultimate value of the power be able to can be transmitted according to the regulating working conditions that may be faced.
(3) overload protection arrangement described in the utility model can pass through to be provided for the axial location for detecting roller (such as
Detected by detecting displacement to keep the axial location of circle) sensing element and close power source when necessary, form dual mistake
Carry protection.
Another object of the present utility model is to propose a kind of power transmission shaft, can realize overload protection, it is possible to
Reliably it is driven in larger scope.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of power transmission shaft, the power transmission shaft are provided with the above-mentioned overload protection arrangement of this utility model offer.
Additionally, this utility model also provides the vehicle with above-mentioned power transmission shaft.
The power transmission shaft and vehicle and above-mentioned overload protection arrangement had the advantage that identical, the here relative to prior art
Repeat no more.
Other features and advantages of the utility model will be described in detail in subsequent specific embodiment part.
Description of the drawings
The accompanying drawing for constituting a part of the present utility model is used for providing further understanding to of the present utility model, and this practicality is new
The exemplary embodiment of type and its illustrate for explaining this utility model, do not constitute to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 is the cross-sectional schematic of the overload protection arrangement described in this utility model embodiment；
Fig. 2 be Fig. 1 in overload protection arrangement be partly broken away after dimensional structure diagram；
Explosive views of the Fig. 3 for the section components of the overload protection arrangement in Fig. 1；
Fig. 4 a and Fig. 4 b is the operation principle schematic diagram of the overload protection arrangement described in this utility model embodiment；
Fig. 5 is the partial structural diagram of the overload protection arrangement described in this utility model embodiment.
Description of reference numerals：
10- drive end components, 10a- alveolus, 11- adpting flanges, 12- outriggers, 20- driven end components, 21- retainers,
21a- arcuate grooves, 22- links, 30- rollers, 40- hold down assembly, 41- butterfly springs, and 42- displacements keep circle, 43- adjusting methods
Orchid, 44- adjustment bolts, 50- sensing elements.
Specific embodiment
It should be noted that the spy in embodiment and embodiment in the case where not conflicting, in this utility model
Levy and can be mutually combined.
This utility model is described in detail below with reference to the accompanying drawings and with reference to embodiment.
Referring to figs. 1 to shown in Fig. 3, according to a kind of overload protection arrangement of preferred implementation of this utility model, including：It is main
Moved end component 10, driven end component 20, roller 30 and hold down assembly 40 etc..Wherein, formed on the end face of drive end component 10
There is alveolus 10a circumferentially, driven end component 20 is coaxially disposed and has retainer 21, rolling with the drive end component 10
Son 30 be correspondingly arranged in retainer 21 in and hold down assembly 40 elastic reaction vertically under keep with drive end component 10
It is formed with the end contact of alveolus 10a.
Although it is understood that roller 30 is illustrated as ball herein, which can also be roller construction.The roller 30
In retainer 21, so as to there is consistent circumferential position (i.e. synchronous axial system) with the retainer 21.
For the ease of understanding the operation principle of overload protection arrangement of the present utility model, carry out in conjunction with accompanying drawing 4a and Fig. 4 b
Describe in detail.First as shown in fig. 4 a, in normal state, as when not transshipping or not being driven, roller 30 is in 40 works that hold down assembly
The bottom land of alveolus 10a is maintained at under.Thus, when drive end component 10 is rotated, alveolus 10a driven rollers 30 are around central axis
Rotate, drive then 20 synchronous axial system of driven end component with retainer 21.In this process, drive end component 10, roller
Transmission between 30 and driven end component 20 is mainly completed by the normal pressure between corresponding component, compared to only relying upon frictional force
The conventional art of transmission, can reliably transmit power interior in a big way.
When the load excessive that driven end component 20 is carried, its retainer 21 produces counteracting force, the anti-work to roller 30
Firmly alveolus 10a is converted in alveolus 10a and puts on the power for being axially distant from drive end component 10 on roller 30 so that rolling
Son 30 overcomes to hold down assembly and 40 moves in alveolus 10a, until removing the alveolus 10a (projections between adjacent alveolus 10a
In portion), now drive end component 10 is connected with the separated of driven end component 20, realizes overload protection, as shown in Figure 4 b.
In this process, positive pressure is primarily present between the element of relative motion, is worn and torn relatively small, higher biography can be kept
Efficiency of movement and reliable transmission.
After load is decreased or turned off power source, roller 30 is entered in next alveolus 10a under 40 effects that hold down assembly,
So as to be connected again.
As can be seen that its drive end component 10 and driven end component 20 are in mistake in the embodiment shown in Fig. 4 a and Fig. 4 b
Carry the relative motion for not occurring vertically during protection, and be only roller 30 overcome hold down assembly 40 elastic force in retainer 21
Alveolus 10a is moved axially out of inside, it is light so as to have the advantages that to be easy to operate.But it is to be understood that, roller 30 can also shape
Become with driven end component 20 axially secured to each other, to be together axially moveable with driven end component 20 in overload, equally
Can disconnect and being connected, this also falls into concept of the present utility model.
Furthermore it is also possible to make drive end component 10 exchange with driven end component 20, alveolus 10a is made to be formed in driven end component
On 20, and make drive end component 10 that there is retainer 21, can equally realize power transmission and overload protection.It is different at both
Embodiment in, the angle of inclination on the surface for needing rationally to arrange alveolus 10a or curvature, to avoid nothing caused by such as self-locking
The problem that method is disconnected in the case of an overload.
In the shown embodiment, drive end component 10 includes adpting flange 11 and outrigger 12, and the two is coaxially disposed simultaneously
It is fixedly secured to one another.Adpting flange 11 can such as by being actively pivotally connected to power source, and alveolus 10a is formed on outrigger 12.Tooth
The number of groove 10a can be rationally arranged according to the size of outrigger 12, power size of required transmission etc., for example, can have 18
Alveolus 10a.Correspondingly, 18 rollers 30 for being provided with respectively in each alveolus 10a and accommodate the roller 30 with 18
The retainer 21 of individual holding tank.
Driven end component 20 can include the link 22 for being fixedly connected on retainer 21, for such as being connected by driven shaft
To load.In addition, retainer 21 can be formed as various appropriate versions, as shown, which can be formed in outer peripheral edge
There is the multiple arcs groove 21a being evenly arranged, to accommodate and keep roller 30.
Further, holding down assembly 40 can include that butterfly spring 41 and displacement keep circle 42.By above-mentioned analysis,
The maximum power that overload protection arrangement of the present utility model can be transmitted is substantially dependent on the elasticity work of 40 applyings that hold down assembly
Size firmly.As butterfly spring 41 can apply larger elastic load with less deformation, thus it is easy to so that transshipping guarantor
Protection unit miniaturization simultaneously can transmit larger power.Specifically, butterfly spring 41 can keep 42 elasticity of circle to make by shifting
For roller 30.Displacement keeps circle 42 arrange around retainer 21, to aid in the retainer 21 to keep the position of roller 30.
In addition, displacement keeps circle 42 can also slide axially under the retroaction of roller 30, to remote such as on the outer peripheral face of outrigger 12
Slide from the direction of drive end component 10, this is easy to position detection in subsequently described preferred implementation etc..
Butterfly spring 41 reasonable selection suitably can be installed as needed, can apply elastic reaction on roller 30
Power.However, power transmission shaft may face different load behaviors, for this purpose, overload protection arrangement of the present utility model is further preferred
It is that adjustment mechanism is set in 40 holding down assembly.Specifically, holding down assembly 40 also includes adjustment flange 43 and is connected thereto
Adjustment bolt 44.Adjustment flange 43 can be formed with projection towards the side of butterfly spring 41, to produce butterfly spring 41
The shape that changes and there is elastic force.One end of adjustment bolt 44 is resisted against on butterfly spring 41 such that it is able to by turning the adjustment spiral shell
Bolt 44 and adjust butterfly spring 41 and act on elastic force on roller 30, it is determined that appropriate overload protection threshold value.
With reference to shown in Fig. 5, according to this utility model more preferred embodiment in, overload protection arrangement also include use
In the sensing element 50 of the axial location of detection roller 30, for example, detected by detecting displacement to keep the position of circle 42, with true
Overload is in whether before settled, is easy to close power source in time, form dual-overload protection.Alternatively or further,
The switch element of power source is may be provided for, the switch element receives the heat transfer agent of the sensing element 50 or directly receives
Such as shift the driving of holding circle 42 and close power source.
Exemplary illustration, on this basis, this utility model have been carried out to overload protection arrangement of the present utility model above
A kind of power transmission shaft with the overload protection arrangement and the vehicle with the power transmission shaft are also provided.
The foregoing is only better embodiment of the present utility model, not to limit this utility model, it is all
Within spirit of the present utility model and principle, any modification, equivalent substitution and improvements made etc. should be included in this practicality new
Within the protection domain of type.
Claims (10)
1. a kind of overload protection arrangement, it is characterised in that the overload protection arrangement includes：
The drive end component (10) being coaxially disposed and driven end component (20), are formed with circumferentially on the end face of one of which
Alveolus (10a), another one is with retainer (21) corresponding with the alveolus (10a)；
Roller (30), the roller (30) are correspondingly arranged in the retainer (21)；And,
Hold down assembly (40), and hold down assembly (40) are in the side relative with the end face for being formed with the alveolus (10a)
Elastic reaction is in the roller (30) vertically, and makes the roller (30) keep contacting with the end face.
2. overload protection arrangement according to claim 1, it is characterised in that the alveolus (10a) is formed in the active
On end component (10), the driven end component (20) is with the retainer (21).
3. overload protection arrangement according to claim 2, it is characterised in that the drive end component (10) is including coaxially setting
The adpting flange (11) put and be fixedly secured to one another and outrigger (12), the alveolus (10a) are formed on the outrigger (12).
4. overload protection arrangement according to claim 2, it is characterised in that the driven end component (20) include with it is described
The link (22) that retainer (21) is fixedly connected.
5. overload protection arrangement according to claim 2, it is characterised in that the outer peripheral edge of the retainer (21) is formed with
The multiple arcuate grooves (21a) for accommodating the roller (30) being evenly arranged.
6. overload protection arrangement according to claim 5, it is characterised in that hold down assembly (40) are including butterfly spring
(41) and displacement keep circle (42), the butterfly spring (41) by it is described displacement keep circle (42) elastic reaction in the roller
(30), and it is described displacement keep circle (42) around the retainer (21) arrange and can be under the retroaction of the roller (30)
Slide axially.
7. overload protection arrangement according to claim 6, it is characterised in that hold down assembly (40) also include adjusting method
Blue (43) and the adjustment bolt (44) being connected on adjustment flange (43), one end of the adjustment bolt (44) is resisted against institute
State on butterfly spring (41) with can be adjusted by turning the adjustment bolt (44) butterfly spring (41) act on it is described
Elastic force on roller (30).
8. overload protection arrangement as claimed in any of claims 1 to 7, it is characterised in that the overload protection dress
Put also include for detect the roller (30) axial location sensing element (50) and/or for according to the axial location
Close the switch element of the power source of the drive end component (10).
9. a kind of power transmission shaft, it is characterised in that the power transmission shaft is provided with the mistake according to any one in claim 1-8
Carry protection device.
10. a kind of vehicle, it is characterised in that the vehicle is provided with power transmission shaft according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621099168.3U CN206072155U (en) | 2016-09-30 | 2016-09-30 | Overload protection arrangement, power transmission shaft and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621099168.3U CN206072155U (en) | 2016-09-30 | 2016-09-30 | Overload protection arrangement, power transmission shaft and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206072155U true CN206072155U (en) | 2017-04-05 |
Family
ID=58441572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621099168.3U Active CN206072155U (en) | 2016-09-30 | 2016-09-30 | Overload protection arrangement, power transmission shaft and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206072155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895133A (en) * | 2018-09-14 | 2018-11-27 | 西北工业大学 | A kind of power transmission deceleration system |
-
2016
- 2016-09-30 CN CN201621099168.3U patent/CN206072155U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108895133A (en) * | 2018-09-14 | 2018-11-27 | 西北工业大学 | A kind of power transmission deceleration system |
| CN108895133B (en) * | 2018-09-14 | 2021-03-09 | 西北工业大学 | Power transmission speed reducing system |
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