CN210591405U - Pedal device capable of generating hysteresis - Google Patents
Pedal device capable of generating hysteresis Download PDFInfo
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- CN210591405U CN210591405U CN201921087574.1U CN201921087574U CN210591405U CN 210591405 U CN210591405 U CN 210591405U CN 201921087574 U CN201921087574 U CN 201921087574U CN 210591405 U CN210591405 U CN 210591405U
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- friction ring
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Abstract
The utility model discloses a produce hysteretic footboard device, including the pedal face, pedal face one end is rotated and is connected in the footboard base, be equipped with a pivot in the footboard base, circumference is equipped with a friction ring in the pivot fixedly, the friction ring rotationally wears to locate spring operating force connecting rod one end, produce the friction power that rotates when rotating between friction ring and the spring operating force connecting rod, be equipped with the spring between spring operating force connecting rod and the footboard base, the spring operating force connecting rod other end is connected with an intermediate mechanism, it rotates and pressure spring on the friction ring to drive the spring operating force connecting rod through intermediate mechanism when the pedal face rotates, the friction power that rotates between friction ring and the spring operating force connecting rod makes the elasticity of spring can drive the spring operating force connecting rod all the time, intermediate mechanism and pedal face reset. The hysteresis generating structure is simple, the hysteresis force can be adjusted only by adjusting the friction force between the spring operating force connecting rod and the friction ring, and the advantage of conveniently adjusting the hysteresis force is also provided.
Description
Technical Field
The utility model relates to a pedal.
Background
At present, based on the human engineering design, a floor type accelerator pedal is used in a plurality of commercial vehicles and more passenger vehicles, and the floor type accelerator pedal can easily control a pedal accelerator. The pedal is usually equipped with a device that produces hysteresis. The hysteresis generating device can significantly reduce fatigue of the driver by making a pedal force generated when the driver presses the pedal and a force applied to the driver's foot by the pedal when the driver releases the pedal different from each other.
In the previous design of the hysteresis structure, most of the hysteresis generating mechanical structures are arranged in an accelerator pedal device. The hysteresis-generating mechanical structure generally includes a friction member that generates friction according to the rotational operation of the pedal. In order to adapt the friction components, the usual mechanical structures that produce hysteresis are divided into a plurality of components. The mechanical structures that are usually used to produce hysteresis are therefore mostly very complex. Due to the complex structure, the probability of failure of the commonly used mechanical structures generating hysteresis is high and it is difficult to adjust the corresponding hysteresis force. In addition, since the friction force generated by the friction member along the movement trace thereof is very large, the driving comfort is affected by the noise generated when the accelerator pedal device is operated. The accelerator pedal device designed in this way is heavy and occupies a large amount of space.
Disclosure of Invention
The utility model aims to solve the technical problem that a simple structure's footboard device that produces hysteresis is provided.
In order to solve the technical problem, the utility model discloses a realize through following technical scheme: a pedal device capable of generating hysteresis comprises a pedal surface, wherein one end of the pedal surface is rotatably connected to a pedal base, a rotating shaft is arranged in the pedal base, a friction ring is circumferentially and fixedly arranged on the rotating shaft, the friction ring rotatably penetrates one end of a spring operating force connecting rod, a rotating friction force is generated between the friction ring and the spring operating force connecting rod when the friction ring and the spring operating force connecting rod rotate, a spring is arranged between the spring operating force connecting rod and the pedal base, the other end of the spring operating force connecting rod is connected with an intermediate mechanism, the spring operating force connecting rod is driven by the intermediate mechanism to rotate on the friction ring and compress the spring when the pedal surface rotates, and the rotating friction force between the friction ring and the spring operating force connecting rod is always smaller than the elastic force of the spring so that the elastic force of the spring can drive the spring.
Furthermore, the circumference of the friction ring is provided with a limiting lug, one end of the spring operating force connecting rod is provided with an arc-shaped limiting groove, the limiting lug is arranged in the limiting groove, the limiting lug moves in the limiting groove when the spring operating force connecting rod rotates on the friction ring, the limiting groove and the limiting lug are matched to limit the rotation angle of the spring operating force connecting rod, the limiting lug is provided with one or more limiting lugs, the limiting grooves and the limiting lugs are arranged correspondingly, and the axis of the friction ring is symmetrical.
Furthermore, the end face of the limiting lug is provided with an angle or a radian so as to facilitate the friction ring to penetrate into one end of the spring operating force connecting rod.
Furthermore, an axial groove extending to the end face is formed in the rotating shaft, a limiting part is arranged on the inner circumferential surface of the friction ring, the limiting part penetrates into the axial groove to achieve circumferential fixation of the friction ring and the rotating shaft, one or more axial grooves are arranged symmetrically with the axis of the rotating shaft, and the limiting part is arranged corresponding to the axial groove.
Further, the friction ring material is polyformaldehyde.
Furthermore, the intermediate mechanism comprises a retarding force operation connecting rod and a retarding connecting rod, one end of the retarding connecting rod is rotatably connected with the pedal face, the other end of the retarding connecting rod penetrates into the pedal base and is rotatably connected with one end of the retarding force operation connecting rod, the other end of the retarding force operation connecting rod is rotatably sleeved on the rotating shaft or the friction ring, a limiting block is arranged on the retarding force operation connecting rod, and the other end of the spring operation force connecting rod is abutted against the limiting block under the action of spring elasticity.
Furthermore, the hysteresis force operation connecting rod comprises two side plates, the limiting block is connected to the middle parts of the two side plates, the spring operation force connecting rod is arranged between the two side plates, a gap is arranged between the spring operation force connecting rod and the two side plates, and the two side plates are rotatably sleeved on the friction ring.
Furthermore, one end of the friction ring is provided with a circle of flange which can prop against the side plate.
Further, the diameter of the hole through which the hysteresis force operation connecting rod is connected with the friction ring is larger than that of the hole through which the spring operation force connecting rod is connected with the friction ring.
Furthermore, the other end of the retarding connecting rod is provided with a limiting boss, and the limiting boss is abutted against the upper wall of the pedal base for limiting when the intermediate mechanism is reset to the original position under the action of the elastic force of the spring.
The utility model discloses an useful part lies in, produces lagged principle and is, and spring operating force connecting rod can produce frictional force when rotating on the friction ring, consequently need exert force when stepping on the pedal face and equal spring elastic force plus the frictional force between spring operating force connecting rod and the friction ring, and the power that receives when loosening the pedal face equals spring elastic force and subtracts the frictional force between spring operating force connecting rod and the friction ring. The hysteresis generating structure is simple, the hysteresis force can be adjusted only by adjusting the friction force between the spring operating force connecting rod and the friction ring, and the hysteresis force generating structure has the advantage of being convenient to adjust. One end of the spring operating force connecting rod rotates on the friction ring, and the other end of the spring operating force connecting rod is connected with the intermediate mechanism and linked with the pedal surface, so that the rotating range of the spring operating force connecting rod is small, only a certain angle needs to be rotated, and noise generated when the spring operating force connecting rod acts is small.
Drawings
Fig. 1 is a side view of the structure of an embodiment of the present invention;
fig. 2 is an exploded view of an embodiment of the present invention;
fig. 3 is a schematic view of the friction ring structure of fig. 2.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1 to 3, an embodiment of the present invention discloses a pedal device for generating hysteresis, including a pedal surface 2, one end of the pedal surface 2 is rotatably connected to a pedal base 1, a rotation shaft 11 is disposed in the pedal base 1, a friction ring 5 is circumferentially and fixedly disposed on the rotation shaft 11, the friction ring 5 is rotatably disposed at one end of a spring operating force connecting rod 7, a rotation friction force is generated when the friction ring 5 and the spring operating force connecting rod 7 rotate, a spring 6 is disposed between the spring operating force connecting rod 7 and the pedal base 1, the other end of the spring operating force connecting rod 7 is connected to an intermediate mechanism, when the pedal surface 2 is stepped down to rotate, the pedal surface 2 drives the spring operating force connecting rod 7 to rotate on the friction ring 5 and compress the spring 6 through the intermediate mechanism, the rotation friction force between the friction ring 5 and the spring operating force connecting rod 7 is always smaller than the elastic force of the spring 6, so that the elastic force of the spring can drive the spring operating force connecting, The intermediate mechanism and the tread surface 2 are reset.
The principle of hysteresis is that the spring operating force link 7 generates a frictional force when it rotates on the friction ring 5, so that the force to be applied when the pedal surface 2 is depressed is equal to the elastic force generated by the spring 6 when the spring 6 is compressed plus the frictional force between the spring operating force link 7 and the friction ring 5, and the force to be applied when the pedal surface 2 is released is equal to the elastic force of the spring 6 minus the frictional force between the spring operating force link 7 and the friction ring 5. The hysteresis generating structure is simple, the hysteresis force can be adjusted only by adjusting the friction force between the spring operating force connecting rod 7 and the friction ring 5, and the hysteresis force generating structure has the advantage of being convenient to adjust. When the friction force between the spring operation force connecting rod 7 and the friction ring 5 needs to be adjusted, only the outer diameter of the friction ring 5 needs to be changed, for example, the friction ring 5 with a larger or smaller size is selected. One end of the spring operation force connecting rod 7 rotates on the friction ring 5, and the other end of the spring operation force connecting rod is connected with the intermediate mechanism and linked with the pedal surface 2, so that the rotation amplitude of the spring operation force connecting rod 7 is small, only a certain angle needs to be rotated, and the noise generated when the spring operation force connecting rod 7 acts is small.
In this embodiment, the circumferential surface of the friction ring 5 is provided with a limiting protrusion 51, one end of the spring operation force connecting rod 7 is provided with an arc-shaped limiting groove 71, the limiting protrusion 51 is arranged in the limiting groove 71, the limiting protrusion 51 moves in the limiting groove 71 when the spring operation force connecting rod 7 rotates on the friction ring 5, the limiting groove 71 and the limiting protrusion 51 cooperate to limit the rotation angle of the spring operation force connecting rod 7, and simultaneously, the axial movement between the spring operation force connecting rod 7 and the friction ring 5 is limited. The friction ring has a specific structure as shown in fig. 3. The movable range of the spring operation force link 7 and the intermediate mechanism in the pedal base 1 is not limited only by the limit groove 71 and the limit projection 51, but the inner space of the pedal base 1 also plays a role in limiting the movable range of the spring operation force link 7 and the intermediate mechanism.
In this embodiment, two limiting protrusions 51 are symmetrically disposed about the axis of the friction ring 5, and two limiting grooves 71 are disposed corresponding to the limiting protrusions 51. The multiple groups of limiting lugs 51 and limiting grooves 71 which are symmetrically arranged can enable stress distribution to be more balanced, and the structural failure rate is reduced. In other embodiments, the number of the limiting protrusions 51 can be one or other.
In this embodiment, the end surface of the limit projection 51 is provided with an angle or a curvature to facilitate the penetration of the friction ring 5 into one end of the spring operation force link 7.
In this embodiment, the rotating shaft 11 is provided with an axial groove extending to the end surface, the inner circumferential surface of the friction ring 5 is provided with a limiting member 52, and the limiting member 52 penetrates into the axial groove to realize circumferential fixation of the friction ring 5 and the rotating shaft 11. The axial slot may be one or more than one, and the position-limiting member 52 is disposed corresponding to the axial slot. The friction ring 5 in fig. 3 has two position-limiting elements 52, and the rotating shaft 11 should also have two axial grooves.
In this embodiment, the friction ring 5 material is polyoxymethylene. Polyoxymethylene is increasingly popular as a resin that can replace metals and has superior mechanical properties (such as fatigue resistance, toughness and wear resistance) that cannot be found in other plastic materials. The mechanical properties of polyoxymethylene are outstanding both at high and low temperatures. In addition, polyoxymethylene shows a stress-strain response similar to that of metal and has good elastic recovery. Because of these benefits, polyoxymethylene can be used instead of metal. In particular, polyoxymethylene is excellent in creep resistance, fatigue resistance and wear resistance. Typically, polyoxymethylene has better mechanical properties than nylon. Therefore, the friction ring is made of polyoxymethylene, the durability of the friction surface can be increased, and the hysteresis effect is increased.
In this embodiment, the intermediate mechanism includes a retarding force operating link 4 and a retarding link 3, one end of the retarding link 3 is rotatably connected to the pedal surface 2, the other end of the retarding link penetrates into the pedal base 1 and is rotatably connected to one end of the retarding force operating link 4, the other end of the retarding force operating link 4 is rotatably sleeved on the friction ring 5, the retarding force operating link 4 is provided with a stopper 41, and the other end of the spring operating force link 7 abuts against the stopper 7 under the elastic force of the spring 6. Because the other end of the spring operating force connecting rod 7 is abutted against the limiting block 7 under the action of the elastic force of the spring 6, the spring operating force connecting rod 7 and the hysteresis force operating connecting rod 4 move in a manner of being always attached together. When the pedal surface 2 is depressed, the hysteresis link 3 is linked with the hysteresis force operating link 4, the hysteresis force operating link 4 rotates on the friction ring 5, and the spring operating force link 7 also rotates on the friction ring 5. The return action after releasing the tread surface 2 is the reverse of the above procedure.
In this embodiment, the hysteresis force operating link 4 includes two side plates 42, the limiting block 41 is connected to the middle portions of the two side plates 42, the spring operating force link 7 is disposed between the two side plates 42, a gap is disposed between the spring operating force link 7 and the two side plates 42, and the two side plates 42 are rotatably sleeved on the friction ring 5. The spring operating force link 7 is disposed between the side plates 42 to axially position the spring operating force link 7 and the hysteresis force operating link 4. The clearance between the spring operated force link 7 and the side plates 42 prevents friction between the two.
In this embodiment, one end of the friction ring 5 is provided with a ring of flange 53, the flange 53 can abut against the side plate 42, the axial positioning of the hysteresis force operating link 4 and the friction ring 5 is completed, and since the axial positioning of the spring operating force link 7 and the hysteresis force operating link 4 is realized, the axial positioning of the friction ring 5, the spring operating force link 7 and the hysteresis force operating link 4 is also realized, and the positioning structure is simple and easy to install. Since a gap is provided between the spring operation force link 7 and the two side plates 42, the flange 53 and the side plates 42 are not always attached to each other after the friction ring 5, the spring operation force link 7, and the hysteresis force operation link 4 are completed, and when the spring operation force link 7 axially moves to a certain position between the two side plates 42, the flange 53 can abut against the side plates 42, so that the spring operation force link 7 cannot move.
In this embodiment, the diameter of the hole through which the hysteresis force operated link 4 is connected to the friction ring 5 is larger than the diameter of the hole through which the spring operated force link is connected to the friction ring. A certain frictional force is generated when the hysteresis force operating link 4 rotates on the friction ring 5, and in order to reduce the influence of the frictional force on the hysteresis force, the hole connecting the hysteresis force operating link 4 and the friction ring 5 needs to have a larger hole diameter, so that the frictional force is relatively small. When the diameter of the hole through which the hysteresis force operating link 4 is connected to the friction ring 5 is sufficiently large and the friction force is sufficiently small, the influence on the hysteresis force is negligible.
Since the friction between the hysteresis force operating link 4 and the friction ring does not affect the hysteresis force, the hysteresis force operating link 4 can also be rotationally connected to the rotary shaft 11. The connection relationship between the hysteresis force operating link 4, the spring operating force link 7, and the hysteresis link 3 is the same as that of the above embodiment, but the specific structure is different from that of the above embodiment.
In this embodiment, the other end of the hysteresis link 3 is provided with a limiting boss 31, and when the intermediate mechanism is reset to the original position under the action of the spring force, the limiting boss 31 is abutted against the upper wall 12 of the pedal base 1 for limiting, so as to avoid the influence of the direct contact between the hysteresis force operating link 4 and the pedal base 1 on the rotary connection structure at the two ends of the hysteresis force operating link 4.
It is to be emphasized that: the above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form, and any simple modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a produce hysteresis footboard device, includes the tread, tread one end is rotated and is connected in the footboard base, its characterized in that: the pedal is characterized in that a rotating shaft is arranged in the pedal base, a friction ring is fixedly arranged on the rotating shaft in the circumferential direction, the friction ring rotatably penetrates one end of the spring operating force connecting rod, rotating friction force is generated when the friction ring and the spring operating force connecting rod rotate, a spring is arranged between the spring operating force connecting rod and the pedal base, the other end of the spring operating force connecting rod is connected with an intermediate mechanism, the spring operating force connecting rod is driven by the intermediate mechanism to rotate on the friction ring and compress the spring when the pedal surface rotates, and the rotating friction force between the friction ring and the spring operating force connecting rod is always smaller than the elastic force of the spring so that the elastic force of the spring can drive the spring operating force connecting rod, the intermediate mechanism and the pedal surface to reset.
2. The hysteresis-generating pedal device as defined in claim 1, wherein: the friction ring is characterized in that a limiting lug is arranged on the periphery of the friction ring, an arc-shaped limiting groove is formed in one end of the spring operating force connecting rod, the limiting lug is arranged in the limiting groove, the limiting lug moves in the limiting groove when the spring operating force connecting rod rotates on the friction ring, the limiting groove and the limiting lug are matched to limit the rotation angle of the spring operating force connecting rod, the limiting lug is provided with one or more limiting lugs, and the limiting groove and the limiting lug are arranged correspondingly.
3. The hysteresis-generating pedal device as defined in claim 2, wherein: the end face of the limiting lug is provided with an angle or a radian so as to facilitate the friction ring to penetrate into one end of the spring operating force connecting rod.
4. The hysteresis-generating pedal device as defined in claim 1, wherein: the improved friction ring is characterized in that an axial groove extending to the end face is formed in the rotating shaft, a limiting part is arranged on the inner circumferential surface of the friction ring, the limiting part penetrates into the axial groove to achieve circumferential fixation of the friction ring and the rotating shaft, one or more axial grooves are arranged in the axial groove or are symmetrically arranged with the axis of the rotating shaft, and the limiting part and the axial groove are correspondingly arranged.
5. The hysteresis-generating pedal device as defined in claim 1, wherein: the friction ring material is polyformaldehyde.
6. The hysteresis-generating pedal device as defined in any one of claims 1 to 5, wherein: the middle mechanism comprises a retarding force operation connecting rod and a retarding connecting rod, one end of the retarding connecting rod is rotatably connected with the pedal face, the other end of the retarding connecting rod penetrates into the pedal base and is rotatably connected with one end of the retarding force operation connecting rod, the other end of the retarding force operation connecting rod is rotatably sleeved on the rotating shaft or the friction ring, a limiting block is arranged on the retarding force operation connecting rod, and the other end of the spring operation force connecting rod is abutted against the limiting block under the action of spring elasticity.
7. The hysteresis-generating pedal device as defined in claim 6, wherein: the hysteresis force operation connecting rod comprises two side plates, the limiting block is connected to the middle portions of the two side plates, the spring operation force connecting rod is arranged between the two side plates, a gap is formed between the spring operation force connecting rod and the two side plates, and the two side plates are rotatably sleeved on the friction ring.
8. The hysteresis-generating pedal device as defined in claim 6, wherein: one end of the friction ring is provided with a circle of flange which can prop against the side plate.
9. The hysteresis-generating pedal device as defined in claim 6, wherein: the aperture of the hole for connecting the hysteresis force operation connecting rod with the friction ring is larger than that of the hole for connecting the spring operation force connecting rod with the friction ring.
10. The hysteresis-generating pedal device as defined in claim 6, wherein: the other end of the hysteresis connecting rod is provided with a limiting boss, and the limiting boss is abutted against the upper wall of the pedal base for limiting when the intermediate mechanism is reset to the original position under the action of the elastic force of the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087574.1U CN210591405U (en) | 2019-07-12 | 2019-07-12 | Pedal device capable of generating hysteresis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921087574.1U CN210591405U (en) | 2019-07-12 | 2019-07-12 | Pedal device capable of generating hysteresis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210591405U true CN210591405U (en) | 2020-05-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921087574.1U Active CN210591405U (en) | 2019-07-12 | 2019-07-12 | Pedal device capable of generating hysteresis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210591405U (en) |
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2019
- 2019-07-12 CN CN201921087574.1U patent/CN210591405U/en active Active
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