CN202040304U - Multipoint stressed unidirectional power drive sprocket with arc grooves - Google Patents
Multipoint stressed unidirectional power drive sprocket with arc grooves Download PDFInfo
- Publication number
- CN202040304U CN202040304U CN2011200606723U CN201120060672U CN202040304U CN 202040304 U CN202040304 U CN 202040304U CN 2011200606723 U CN2011200606723 U CN 2011200606723U CN 201120060672 U CN201120060672 U CN 201120060672U CN 202040304 U CN202040304 U CN 202040304U
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- spring
- ball
- arc
- gear ring
- outer chain
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Abstract
The utility model discloses a multipoint stressed unidirectional power drive sprocket with arc grooves. A circular-arc deep-groove bearing groove (3) is formed on the inner circle surface of an outer chain gear ring of the device. A plurality of parabolic inclined arc grooves (10) are formed on the excircle surface of an inner spline disk (11). A plurality of positioning sliding balls (5) and stop balls (8) are arranged in the grooves by an outer chain gear ring opening and an inner spline disk opening; tension springs on which spring wear-resistant sleeves (6) are sleeved are arranged between the positioning sliding balls (5) and the stop balls (8); then spring wear-resistant caps are arranged at both ends of the tension springs; under the action of the tension of the springs, the stop balls are pushed to a slope top to be in a gapless state; and the multipoint stressed unidirectional power drive sprocket with the arc grooves can be deadlocked when rotating towards the direction of the slope top and can freely slide when rotating towards another direction, so that unidirectional drive of power is realized.
Description
Technical field
The utility model relates to the device of chain, sprocket wheel transferring power, is specially adapted to not have slide device, is the vehicle by chain, sprocket wheel transmission of drive force.
Background technique
There are many deficiencies in structure, the design in the existing unidirectional sprocket wheel that slides.Its structural deficiency is that it is to sting sheet by a top of internal spline dish outer rim, the some vehicles that orders about that withstand in a plurality of taper key teeth on the outer chain gear ring inner headed face move ahead, though several tops thorn sheet is arranged, be difficult to accomplish simultaneously stressed, have only usually one stressed.So under the powerful driving force of motor, be easy to damage apical tooth sheet and taper key tooth.To have plenty of in order preventing from radially to break away and to install thick and heavy anti-sideslip baffle plate on both sides additional.Another kind is to install bearing additional on one side or open bearing groove dress ball to prevent to break away.Its thickness is all thicker to be unfavorable for installing, and cost also increases to some extent.In actual use the life-span shorter, the waste resource, this is unfavorable for the energy-conserving and environment-protective requirement, does not also just have lasting vitality.
The model utility content
The purpose of this utility model be to provide a kind of reasonable in design, simple in structure, volume is less, the low power-actuated device of long-lived arcuate furrow multiple spot stress unilateral of cost.
For achieving the above object, scheme of the present utility model is: a kind of arcuate furrow multiple spot stress unilateral power driven sprockets, comprise internal spline dish, tension spring, outer chain gear ring, location advance ball, spring wearing bush, spring abrasionproof cap, stop ball, dust cover, its specialization is: the inner headed face of outer chain gear ring has a whole circle arc zanjon bearing groove, the mouth limit of zanjon bearing groove has one first little opening, the periphery of internal spline dish has a plurality of parabolas slope arc-shaped slot, and slope edge has a plurality of second little opening.
Design proposal of the present utility model be guarantee with power smooth and easy, steady, lasting be delivered to driving wheel.Dwindle thickness to greatest extent, be convenient to install.Simplified structure is convenient to make.Reduce cost as much as possible, farthest promote the market competitiveness.This programme mainly is made of " outer chain gear ring " and " internal spline dish ".Disposed simultaneously by ball, spring and anti-wear, constituted one one to sliding another to the unidirectional power drive unit of stop.The cylindrical of described " outer chain fluted disc " has the tooth that cooperates with chain, and inner headed face has been opened the circular arc zanjon bearing groove that cooperates with ball together, has first opening identical with the ball radian at the edge of groove, and purpose is in order to load ball.Described " internal spline dish " has a plurality of curve bath parabolas slope at its periphery, has at least one one second little opening identical with the ball radian at slope edge, and also the filling ball is used, and curve bath cooperates with ball.At ball. spring. it is durable to have constituted an exquisiteness under anti-wear the reasonable assembling, and the unidirectional power of low production cost simple in structure drives slides sprocket wheel.
Feature of the present utility model is that the inner headed face of " outer chain fluted disc " has circular arc zanjon bearing groove one, and circular groove mouth limit has one first little opening within it.The periphery of " internal spline dish " has a plurality of parabolas slope arc-shaped slot, at least one second little opening on a plurality of slopes, and closely cooperate with it by ball, tension spring, anti-wear and to have constituted a unidirectional power drive unit.Described ball all is equipped with two in the inside, each curve bath parabola slope, and described tension spring is to be contained in each slope groove between two balls, and ball is outwards pushed.Described anti-wear is that the two that is contained in tension spring prevents " cap " of spring wearing and tearing and prevents radially " cover " of cylindrical wearing and tearing of spring.
This device is installed on the pto of power installation for automobile of band chain tooth, after correct the installation, rotating speed improves when giving the motor oil supply, and at this moment this device is in stuck state, and power is delivered to trailing wheel stably, and powered vehicle moves ahead.When vehicle under steam behind the pine tar, engine speed step-down, at this moment this device moment has been removed stuck state, is in and slides rotation status.So just can not be because of the engine speed step-down hold vehicle, the just normal anti-phenomenon of saying of dragging, coasting distance is longer.And that this device has solved cleverly is counter when dragging phenomenon, and volume cost has been dropped to a lower degree.This is to have made full use of vehicle inertia energy in motion, and the motor not distance of oil supply relief vehicle driving is farther, thereby reaches the purpose of energy-conserving and environment-protective.
The utility model has the advantages that reduced volume to greatest extent, cleverly with slide member, anti-break away, stop component is arranged in the same groove, realized comparatively desirable one to sliding another to then stuck purpose.Simplified production technology, prolonged working life by appropriate design.Thereby reach the purpose of energy-conserving and environment-protective.This programme has also that volume is less, compact structure, prolonged bad usefulness, easy for installation, advantage such as processing technology simple, cost is lower.And has a value for applications preferably.
The beneficial effects of the utility model are to ensure to greatest extent under the prerequisite that prolongs normal working life that reduced volume reduces process complexity as far as possible, has also just reduced cost.The inevitable technique effect that it is directly brought by technical characteristics or is produced by technical characteristics.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the plan view of arcuate furrow multiple spot stress unilateral driving sprocket wheel;
Fig. 2 is the left view of Fig. 1.
The numbering explanation
1, one second little opening of internal spline dish, 2, tension spring, 3, circular arc zanjon bearing groove, 4, outer chain gear ring, 5 location advance balls, 6, the spring wearing bush, 7, spring abrasionproof cap, 8, stop ball, 9, one first little opening of outer chain gear ring, 10, internal spline dish parabola slope arc-shaped slot, 11, the internal spline dish, 12, dust cover
Embodiment
Outer chain gear ring 4 as shown in Figure 1, sprocket cooperates with chain, and disc has circular arc zanjon bearing groove 3 one within it, align with outer chain gear ring opening 9 by internal spline dish opening 1, and with in several location advance balls 5 and the stop ball 8 threading grooves, similar bearing structure.In order to realize reverse stop, periphery at internal spline dish 11 has several parabola slope arc-shaped slots 10, a location advance ball 5 and a stop ball 8 all are housed in every group, tension spring 2 is contained in location advance ball 5, and between the stop ball 8, under promoting, tension force stop ball 8 is squeezed gap smaller to sloping pushing tow.Motionless when internal spline dish 11, the sloping top direction of outer chain gear ring 4 inside flower keyboard parabola slope arc-shaped slots 10 will be stuck when rotating, thereby realizes stop.When will rotating a bit of distance to the end, slope, thereby removed stop, entered sliding state toward another stop ball 8 when rotating.The effect of location advance ball 5 is as the location of sliding, and prevents to break away and keeps off tension spring 2.Spring wearing bush 6, described spring wearing bush 6 is enclosed within on the excircle of tension spring 2 one ends, is in order to protect tension spring 2 not reduced working life by the cell wall fretting wear of outer chain gear ring circular arc zanjon bearing groove 3.Spring abrasionproof cap 7 is not to be worn for the end of protecting tension spring 2 at the other end of spring 2.Dust cover 12 is in order to prevent dust inletting device inside.By the reasonable cooperation of each parts, thereby constituted a fairly perfect unidirectional Power Drive Unit that slides.
Claims (3)
1. arcuate furrow multiple spot stress unilateral power driven sprockets, comprise internal spline dish (11), tension spring (2), outer chain gear ring (4), location advance ball (5), spring wearing bush (6), spring abrasionproof cap (7), stop ball (8), dust cover (12), it is characterized in that: the inner headed face of outer chain gear ring (4) has a whole circle arc zanjon bearing groove (3), the mouth limit of zanjon bearing groove has one first little opening (9), the periphery of internal spline dish (11) has a plurality of parabolas slope arc-shaped slot (10), and slope edge has a plurality of second little opening (1).
2. a kind of arcuate furrow multiple spot stress unilateral power driven sprockets according to claim 1, it is characterized in that: a location advance ball (5) and a stop ball (8) all are housed in every group of the described parabola slope arc-shaped slot, cooperate with circular arc zanjon bearing groove (3).
3. a kind of arcuate furrow multiple spot stress unilateral power driven sprockets according to claim 1, it is characterized in that: described tension spring (2) is contained between location advance ball (5) and the stop ball (8), described spring wearing bush (6) is enclosed within on the periphery of tension spring (2) one ends, and spring abrasionproof cap (7) is the other end that is contained in tension spring (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200606723U CN202040304U (en) | 2011-03-04 | 2011-03-04 | Multipoint stressed unidirectional power drive sprocket with arc grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200606723U CN202040304U (en) | 2011-03-04 | 2011-03-04 | Multipoint stressed unidirectional power drive sprocket with arc grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202040304U true CN202040304U (en) | 2011-11-16 |
Family
ID=44967747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200606723U Expired - Fee Related CN202040304U (en) | 2011-03-04 | 2011-03-04 | Multipoint stressed unidirectional power drive sprocket with arc grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202040304U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537276A (en) * | 2012-03-08 | 2012-07-04 | 李凯 | Elastic buffer device |
-
2011
- 2011-03-04 CN CN2011200606723U patent/CN202040304U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537276A (en) * | 2012-03-08 | 2012-07-04 | 李凯 | Elastic buffer device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20140304 |