CN203571023U - Fault protection device suitable for taper ring type continuously variable transmission - Google Patents
Fault protection device suitable for taper ring type continuously variable transmission Download PDFInfo
- Publication number
- CN203571023U CN203571023U CN201320555712.0U CN201320555712U CN203571023U CN 203571023 U CN203571023 U CN 203571023U CN 201320555712 U CN201320555712 U CN 201320555712U CN 203571023 U CN203571023 U CN 203571023U
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- push rod
- rod
- endoporus
- supporting sleeve
- applicable
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Abstract
The utility model discloses a fault protection device suitable for a taper ring type continuously variable transmission. The fault protection device comprises an electromagnet, a supporting sleeve, at least three steel balls, a push rod screw sleeve, a fixed rod, a push rod and a spring component, a telescopic iron core is arranged in the electromagnet, the fixed rod is arranged in a first inner hole of the push rod, one end of the push rod is connected with the push rod screw sleeve, a protrusion in contact with a guide rod is arranged on the side portion of the other end of the push rod, the guide rod abuts against the position below the protrusion, and the mutual action between the guide rod and the protrusion is achieved. The spring component is arranged in the first inner hole and between the push rod and the fixed rod, and the spring component is extruded and supplies downward resilience force to the push rod in the process of pushing the push rod to move upwards by the guide rod. The supporting sleeve is located in the push rod screw sleeve, and a second inner hole is formed in the supporting sleeve. The accurate control over a transmission ring by a control system cannot be influenced under the conventional driving work station, and safe and timely protection movement can be provided in the fault process.
Description
Technical field
The utility model relates to a kind of failure protecting device that is applicable to conical ring formula stepless speed variator.
Background technique
Conical ring formula stepless speed variator (hereinafter to be referred as KRG) is that a kind of input cone and output bevel of adopting clamps transmission ring, by the stepless speed variator of friction driving.The design concept of KRG is the oil hydraulic pump of avoiding adopting in any way, only with simple and durable mechanical part, by motor, controls.Compared with traditional infinitely variable transmission (CVT), this design concept of conical ring formula stepless speed variator makes it aspect manufacture cost and efficiency, have huge advantage, can predict the wide market prospects of conical ring formula stepless speed variator.
In KRG transmission, by the angle of revolution of control break ring, thereby change the axial contact position of transmission ring on cone, and then change the velocity ratio of KRG.In KRG, transmission ring is clamped by speed changing bridge, and speed changing bridge slides on guide rod, and variable speed electric motors, particularly carrys out the angle of control break guide rod by planetary reducer, bolt and nut mechanism, and then changes the angle of transmission ring, realizes necessary velocity ratio.For avoiding KRG conical ring mechanism to damage under fault mode, need a kind of safety protection device of design, KRG transmission ring when power-off, fault or vehicle stop is controlled according to the strategy of setting, thereby reached the object of protection power assembly.This protective gear needs to provide safety mechanical control action timely, to guarantee that transmission ring moves under slave mode.
Summary of the invention
In order to overcome the shortcoming of existing KRG conical ring mechanism destructible under fault mode, the utility model provides a kind of not to be affected the correct control of control system to transmission ring and the failure protecting device that is applicable to conical ring formula stepless speed variator of safety protection action timely can be provided when control system of speed variator power-off or vehicle transmission system fault under conventional driving cycles.
The technical solution adopted in the utility model is:
Be applicable to the failure protecting device of conical ring formula stepless speed variator, it is characterized in that: comprise that inside has the electromagnet of scalable iron core, supporting sleeve, at least 3 steel balls, push rod swivel nut, fixing rod, push rod and spring assemblies, described push rod is provided with the first endoporus, described fixing rod is arranged in the first endoporus of described push rod, described push rod one end connects with described push rod swivel nut, the other end sidepiece is provided with the protuberance that can touch with guide rod, described guide rod is resisted against described protuberance below, has realized interaction between the two; Between described push rod and described fixing rod, at the first described endoporus, be provided with spring assembly, at guide rod, promote to move past the spring assembly described in journey on push rod and be squeezed and give push rod downward spring-back force; Described supporting sleeve is arranged in described push rod swivel nut, offers the second endoporus on described supporting sleeve, and one end is set on described fixing rod, and described steel ball annular is arranged in the cinclides of described supporting sleeve; The iron mandrel of described electromagnet is positioned at the other end of the second endoporus of described supporting sleeve, when the end of iron mandrel runs to annular steel ball position, for supporting steel ball.
Further, the first described endoporus is shoulder hole, and its ladder surface is for support spring assembly.
Further, the endoporus of described push rod swivel nut is shoulder hole, and its ladder surface is used for blocking steel ball.
Further, the ladder surface of the endoporus of described push rod swivel nut is conical surface.
Further, described supporting sleeve and fixing rod joint tail end are provided with the first back-up ring.
Further, between described spring assembly and described supporting sleeve, be provided with pad.
Further, the other end afterbody center of described push rod is provided with a groove structure, be provided with the second back-up ring, and its end is disposed with gasket seal and cushion pad from inside to outside between described groove structure and fixing rod.
The utility model, according to the operating mode of KRG, need have two actions: action one is to promote to move on push rod by guide rod; Action two is by electromagnet power-off iron mandrel end, to leave steel ball position push rod is discharged, and push rod promotes guide rod and moves down.
Action one: under automobile normal running operating mode, after speed changer energising starts, speed ratio electric machine rotation arrives leading screw by planetary mechanism by transmission of power, and leading screw rotates the movement of controlling nut assembly, the swing of nut assembly control guide rod.By nut assembly, promoted to move on guide rod, guide rod promotes to move on push rod.In the process of moving, trigger electromagnet position switch and make electromagnet energising work on push rod.After electromagnet energising, iron mandrel end moves to steel ball position, and steel ball is released and is stuck in the ladder surface of push rod swivel nut in the cinclides of supporting sleeve; Motor reversal, nut assembly moves down, and gets back to normal operating conditions.After this, electromagnet is always in energising hold mode, and electromagnet core remains on a high position by steel ball by push rod swivel nut and push rod, and push rod is subject to the effect of push rod spring, has downward energy.
Action two: when change control system fault or car load power-off; electromagnet power-off; steel ball position is left end by iron mandrel; steel ball is discharged, and under the effect of push rod spring power and gravity, push rod moves down; promote guide rod; guide rod changes the angle of revolution of ring by speed changing bridge, allow ring according to the control strategy of setting, move rapidly, to play protective function.
The beneficial effects of the utility model are embodied in: the utility model does not affect the correct control of control system to transmission ring under conventional driving cycles, and safety protection action timely can be provided when control system of speed variator power-off or vehicle transmission system fault.
Accompanying drawing explanation
Fig. 1 is the utility model mounting point schematic diagram.
Fig. 2 is the utility model generalized section.
Fig. 3 is the utility model action one signal phase diagram.
Fig. 4 is the utility model action two signal phase diagrams.
Wherein 2 in Fig. 2 is the utility model failure protecting device.
Embodiment
See figures.1.and.2, be applicable to the failure protecting device of conical ring formula stepless speed variator, comprise that inside has the electromagnet 8 of scalable iron core 21, supporting sleeve 9, at least 3 steel balls 10, push rod swivel nut 11, fixing rod 20, push rod 15 and spring assembly 16, described push rod 15 is provided with the first endoporus, described fixing rod 20 is arranged in the first endoporus of described push rod 15, described push rod 15 one end connect with described push rod swivel nut 11, the other end sidepiece is provided with the protuberance 22 that can touch with guide rod 4, described guide rod 4 is resisted against the below of described protuberance 22, realized interaction between the two, between described push rod 15 and described fixing rod 20, at the first described endoporus, be provided with spring assembly 16, at guide rod 4, promote to move past the spring assembly 16 described in journey on push rod 15 and be squeezed and give push rod 15 downward spring-back force, described supporting sleeve 9 is arranged in described push rod swivel nut 11, on described supporting sleeve 9, offers the second endoporus, and one end is set on described fixing rod 20, and described steel ball 10 annulars are arranged in the cinclides of described supporting sleeve 9, iron core 21 axles of described electromagnet 8 are positioned at the other end of the second endoporus of described supporting sleeve 9, when the end of iron mandrel runs to annular steel ball 10 position, for supporting steel ball.
Further, the first described endoporus is shoulder hole, and its ladder surface is for support spring assembly 16.
Further, the endoporus of described push rod swivel nut 11 is shoulder hole, and its ladder surface is used for blocking steel ball 10.
Further, the ladder surface of the endoporus of described push rod swivel nut is conical surface.
Further, described supporting sleeve 9 is provided with the first back-up ring 13 with fixing rod 20 joint tail ends.
Further, between described spring assembly 16 and described supporting sleeve 9, be provided with pad 14.
Further, the other end afterbody center of described push rod 15 is provided with a groove structure, be provided with the second back-up ring 17, and its end is disposed with gasket seal 19 and cushion pad 18 from inside to outside between described groove structure and fixing rod 20.
The utility model, according to the operating mode of KRG, need have two actions: action one is to promote to move on push rod by guide rod; Action two is by electromagnet power-off iron mandrel end, to leave steel ball position push rod is discharged, and push rod promotes guide rod and moves down.
With reference to figure 3, action one: under automobile normal running operating mode, after speed changer energising starts, speed ratio motor 1 rotates by planetary mechanism transmission of power is arrived to leading screw 3, and leading screw 3 rotates the movement of controlling nut assembly 5, and nut assembly 5 is controlled the swing of guide rod 4.By nut assembly 5, promoted to move on guide rod 4, guide rod 4 promotes to move on push rod 15.In the process of moving, trigger electromagnet position switch 12 and make electromagnet 8 energising work on push rod 15.After electromagnet energising, iron mandrel end moves to steel ball position, and steel ball is released and is stuck in the ladder surface of push rod swivel nut in the cinclides of supporting sleeve; Motor reversal, nut assembly moves down, and gets back to normal operating conditions.After this, electromagnet is always in energising hold mode, and electromagnet core remains on a high position by steel ball by push rod swivel nut and push rod, and push rod is subject to the effect of push rod spring, has downward energy.
With reference to figure 4; action two: when change control system fault or car load power-off; electromagnet power-off, steel ball position is left end by iron mandrel, and steel ball is discharged; under the effect of push rod spring power and gravity; push rod moves down, and promotes guide rod, and guide rod changes the angle of revolution of ring 6 by speed changing bridge 7; allow ring 6 according to the control strategy of setting, move rapidly, to play protective function.
Content described in this specification embodiment is only enumerating of way of realization to inventive concept; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also and in those skilled in the art, according to the utility model, conceive the equivalent technologies means that can expect.
Claims (7)
1. be applicable to the failure protecting device of conical ring formula stepless speed variator, it is characterized in that: comprise that inside has the electromagnet of scalable iron core, supporting sleeve, at least 3 steel balls, push rod swivel nut, fixing rod, push rod and spring assemblies, described push rod is provided with the first endoporus, described fixing rod is arranged in the first endoporus of described push rod, described push rod one end connects with described push rod swivel nut, the other end sidepiece is provided with the protuberance that can touch with guide rod, described guide rod is resisted against described protuberance below, has realized interaction between the two; Between described push rod and described fixing rod, at the first described endoporus, be provided with spring assembly, at guide rod, promote to move past the spring assembly described in journey on push rod and be squeezed and give push rod downward spring-back force; Described supporting sleeve is arranged in described push rod swivel nut, offers the second endoporus on described supporting sleeve, and one end is set on described fixing rod, and described steel ball annular is arranged in the cinclides of described supporting sleeve; The iron mandrel of described electromagnet is arranged in the other end of the second endoporus of described supporting sleeve, when the end of iron mandrel runs to annular steel ball position, for supporting steel ball.
2. the failure protecting device that is applicable to conical ring formula stepless speed variator as claimed in claim 1, is characterized in that: the first described endoporus is shoulder hole, and its ladder surface is for support spring assembly.
3. the failure protecting device that is applicable to conical ring formula stepless speed variator as claimed in claim 2, is characterized in that: the endoporus of described push rod swivel nut is shoulder hole, and its ladder surface is used for blocking steel ball.
4. the failure protecting device that is applicable to conical ring formula stepless speed variator as claimed in claim 3, is characterized in that: the ladder surface of the endoporus of described push rod swivel nut is conical surface.
5. the failure protecting device that is applicable to conical ring formula stepless speed variator as described in claim 3 or 4, is characterized in that: described supporting sleeve and fixing rod joint tail end are provided with the first back-up ring.
6. the failure protecting device that is applicable to conical ring formula stepless speed variator as claimed in claim 5, is characterized in that: between described spring assembly and described supporting sleeve, be provided with pad.
7. the failure protecting device that is applicable to conical ring formula stepless speed variator as claimed in claim 6; it is characterized in that: the other end afterbody center of described push rod is provided with a groove structure; between described groove structure and fixing rod, be provided with the second back-up ring, and its end is disposed with gasket seal and cushion pad from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555712.0U CN203571023U (en) | 2013-09-06 | 2013-09-06 | Fault protection device suitable for taper ring type continuously variable transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320555712.0U CN203571023U (en) | 2013-09-06 | 2013-09-06 | Fault protection device suitable for taper ring type continuously variable transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203571023U true CN203571023U (en) | 2014-04-30 |
Family
ID=50538755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320555712.0U Withdrawn - After Issue CN203571023U (en) | 2013-09-06 | 2013-09-06 | Fault protection device suitable for taper ring type continuously variable transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203571023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470749A (en) * | 2013-09-06 | 2013-12-25 | 浙江德孚力汽车变速箱有限公司 | Fault protection device applicable to cone ring type continuously variable transmission |
| CN105673834A (en) * | 2016-03-16 | 2016-06-15 | 浙江德孚力汽车变速箱有限公司 | Transmission ring control mechanism of conical ring type continuously variable transmission |
-
2013
- 2013-09-06 CN CN201320555712.0U patent/CN203571023U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470749A (en) * | 2013-09-06 | 2013-12-25 | 浙江德孚力汽车变速箱有限公司 | Fault protection device applicable to cone ring type continuously variable transmission |
| CN103470749B (en) * | 2013-09-06 | 2015-08-26 | 浙江德孚力汽车变速箱有限公司 | Be applicable to the failure protecting device of conical ring formula stepless speed variator |
| CN105673834A (en) * | 2016-03-16 | 2016-06-15 | 浙江德孚力汽车变速箱有限公司 | Transmission ring control mechanism of conical ring type continuously variable transmission |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140430 Effective date of abandoning: 20150826 |
|
| RGAV | Abandon patent right to avoid regrant |