Electric control pedal and electric control pedal assembly

Abstract

The utility model belongs to the technical field of vehicle transmission, and particularly relates to an electric control pedal and an electric control pedal assembly, the electric control pedal comprises a base, a rotating shaft, a pedal support and a damping mechanism, cylinder bodies are arranged at the two ends of the base, and the pedal support is rotationally connected to the base through the rotating shaft; the damping mechanism comprises pistons and guide assemblies, the pistons are arranged in the cylinder bodies, and springs are arranged between the pistons and the bottoms of the cylinder bodies; the top of the piston is pin-connected with a pedal support; the guide assembly is configured to limit the spring to deviate so that the spring can be kept stretching and retracting in the axial direction of the cylinder body when the piston moves. The spring can be kept extending in the axial direction of the cylinder body under the action of the guide assembly, so that the spring can be prevented from deviating in the compression and reset process, and a worker can conveniently and accurately control the treading degree of the pedal.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle transmission, in particular to an electric control pedal and an electric control pedal assembly. Background Art

[0002] Tracked engineering machinery vehicles not only require an accelerator pedal to control the vehicle's movement and speed, but also need to control the vehicle's steering. A set of vehicles requires two pedals to control the tracks on each side, respectively, to achieve vehicle steering when the walking speeds on both sides are different. The existing hydraulic pedal control output is not accurate, and the hydraulic system structure is relatively complex and energy-consuming. There are also problems such as inconvenient pipe installation and easy oil leakage. In addition, the hydraulic system is not convenient to integrate into the automatic control system, which brings inconvenience to fault diagnosis. Therefore, the original hydraulic pedal is currently replaced with an electronically controlled pedal, so that the complex hydraulic system related to the vehicle can be omitted. In addition, because the electronic signal of the electronically controlled pedal is more accurate and stable, it can effectively ensure the stable operation of the vehicle and can also achieve the effect of energy conservation and emission reduction.

[0003] Existing electric pedals mostly use damping mechanisms to provide feedback to staff. Specifically, when the electric pedal is pressed down, the damping mechanism can apply a reaction force to the pedal, so that the staff can feel the pedal's stepping status more clearly, thereby improving the accuracy of the operation. Moreover, when the staff does not step on the pedal, the pedal can return to its initial position under the action of the reaction force.

[0004] However, after the electronically controlled pedal has been stepped on for a long time, the direction of the reaction force applied by the damping mechanism to the pedal will shift, causing the pedal to be unable to accurately return to its initial position. As a result, the staff will not be able to accurately control the degree of pedaling when stepping on the pedal, thereby affecting the accuracy of the electronic signal output.

[0005] Therefore, the above problems need to be solved urgently. Utility Model Content

[0006] The purpose of the utility model is to provide an electronically controlled pedal and an electronically controlled pedal assembly to prevent the reaction force direction of the damping mechanism on the pedal from changing when the electronically controlled pedal is used for a long time, thereby improving the control accuracy of the pedal's stepping degree.

[0007] To achieve this purpose, the present invention adopts the following technical solutions:

[0008] An electronically controlled pedal, comprising:

[0009] A base, with cylinder bodies provided at both ends of the base;

[0010] A rotating shaft is rotatably disposed on the base and is located between the two cylinders;

[0011] a pedal support fixedly connected to the rotating shaft;

[0012] A damping mechanism is arranged in the cylinder body, and the damping mechanism includes a piston and a guide assembly. A spring is arranged between the piston and the bottom of the cylinder body; the top of the piston is pinned to the pedal support so that the piston can move in the cylinder body when the pedal support rotates around the rotation axis of the rotating shaft; the guide assembly is configured to limit the spring offset so that the spring can maintain axial expansion and contraction along the cylinder body when the piston moves.

[0013] Preferably, the guide assembly comprises:

[0014] A guide portion connected to the bottom of the cylinder and extending upward along the axis of the cylinder;

[0015] The limiting part is slidably connected to the guide part. The spring is sleeved on the outer wall of the limiting part and one end is connected to the limiting part so that the limiting part abuts against the piston.

[0016] Preferably, the guide portion comprises:

[0017] a rod body, wherein the axis of the rod body coincides with the axis of the cylinder body;

[0018] A connecting piece is arranged at the bottom of the rod body, and the connecting piece is screwed to the bottom of the cylinder body.

[0019] Preferably, the guide portion further includes a limiting end cover, which is arranged on the top of the rod body and slides in the cavity of the limiting portion, wherein the cross section of the limiting end cover is larger than the cross section of the rod body.

[0020] Preferably, a flange is provided at the bottom of the limiting portion, and the outer wall of the spring abuts against the inner wall of the flange.

[0021] Preferably, a limiting groove is provided at the bottom of the piston;

[0022] A protrusion matching the limiting groove is provided on the top of the limiting portion.

[0023] Preferably, an oblong hole is provided on the top of the piston, and the oblong hole is tilted downward, a connecting pin is provided on the pedal support, the connecting pin is adapted to the oblong hole, and when the pedal support rotates around the rotating axis, the connecting pin can slide in the oblong hole.

[0024] Preferably, a shaft bushing is provided on the outside of the rotating shaft, and the shaft bushing is located between the rotating shaft and the pedal support; a piston bushing is provided on the outside of the piston, and the piston bushing is located between the piston and the cylinder body.

[0025] Preferably, a first pin hole is provided on the pedal support, and a second pin hole is provided on the rotating shaft;

[0026] The electronically controlled pedal also includes a pin shaft and a limit screw. The first pin hole and the second pin hole are both adapted to the pin shaft. One end of the pin shaft is in the first pin hole, and the other end is in the second pin hole. The limit screw is threadedly connected to the first pin hole and can abut against the pin shaft.

[0027] An electric control pedal assembly comprises two electric control pedals as described above, wherein the two electric control pedals are respectively connected to different track wheels.

[0028] Beneficial effects of the utility model:

[0029] The electric control pedal proposed by the utility model has a pedal support that can drive the rotating shaft to rotate when the worker steps on it, and can drive the piston to move in the cylinder body. During the movement of the piston, it can not only compress the air in the cylinder body, but also compress the spring, so that the worker has a damping feeling when stepping on the pedal support. When the worker does not step on the pedal support, the pedal support can be reset under the action of the spring to facilitate subsequent work. The spring can be maintained in the axial extension along the cylinder body under the action of the guide assembly, thereby preventing the spring from deflecting during the compression and reset process, thereby facilitating the worker to accurately control the degree of pedaling.

[0030] The utility model also provides an electric control pedal assembly, which controls the operation of different track wheels through two electric control pedals, so that any electric control pedal can be maintained and repaired at a later stage, thereby reducing maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a schematic structural diagram of an embodiment of an electric control pedal of the present utility model;

[0032] Figure 2 yes Figure 1 One of the explosion diagrams;

[0033] Figure 3 yes Figure 1 Explosion diagram 2;

[0034] Figure 4 It is a cross-sectional view of an embodiment of the electric control pedal of the present utility model;

[0035] Figure 5 yes Figure 4 A partial view of the connection between the middle cylinder and the guide assembly;

[0036] Figure 6 It is a structural diagram of an embodiment of an electric control pedal assembly of the present utility model.

[0037] In the picture:

[0038] 1. Base; 11. Cylinder;

[0039] 2. Rotating axis;

[0040] 3. Pedal support; 31. Connecting pin;

[0041] 4. Electronic sensors;

[0042] 5. Piston; 51. Limiting groove; 52. Oblong hole;

[0043] 6. Guide assembly; 61. Guide portion; 611. Connector; 612. Rod body; 613. Position-limiting end cap; 62. Position-limiting portion; 621. Flanging;

[0044] 7. Spring; 8. Pin; 9. Limit screw; 10. Dust cover. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0046] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0047] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0048] In the description of this embodiment, the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0049] like Figure 1-Figure 4 As shown, this embodiment proposes an electronically controlled pedal, including a base 1, a pedal support 3, an electronic sensor 4 and a damping mechanism. Cylinders 11 are provided at both ends of the base 1, and a rotating shaft 2 is provided between the two cylinders 11. The rotating shaft 2 is electrically connected to the electronic sensor 4 outside the base 1. The pedal support 3 is rotatably connected to the rotating shaft 2, and the pedal support 3 keeps synchronous rotation with the rotating shaft 2 during rotation, so that the electronic chip in the electronic sensor 4 detects the change in the angle of the magnet set on the rotating shaft 2 and outputs a voltage signal, thereby being able to control the track corresponding to the electronically controlled pedal.

[0050] The damping mechanism includes a piston 5 and a guide assembly 6. The piston 5 is arranged in each cylinder 11, and a spring 7 is arranged between the piston 5 and the bottom of the cylinder 11; the top of the piston 5 is pinned to the pedal support 3, so that when the pedal support 3 rotates around the rotation axis of the rotating shaft 2, the piston 5 can move in the cylinder 11, and the guide assembly 6 is configured to limit the offset of the spring 7 so that the spring 7 can maintain axial expansion and contraction along the cylinder 11 when the piston 5 moves.

[0051] It can be understood that the pedal support 3 can drive the rotating shaft 2 to rotate when the staff steps on it, and can drive the piston 5 to move in the cylinder 11. During the movement, the piston 5 can not only compress the air in the cylinder 11, but also compress the spring 7, so that the staff has a damping feeling when stepping on the pedal support 3. When the staff does not step on the pedal support 3, the pedal support 3 can be reset under the action of the spring 7 to facilitate subsequent work. The spring 7 can be maintained in the axial extension along the cylinder 11 under the action of the guide assembly 6, thereby avoiding the spring 7 from offsetting during the compression and reset process, thereby facilitating the staff to accurately control the degree of pedal stepping.

[0052] Specifically, an oblong hole 52 is provided at the top of the piston 5, and the oblong hole 52 is tilted downward. A connecting pin 31 is provided on the pedal support 3, which is adapted to fit within the oblong hole 52. When the pedal support 3 rotates about the rotation axis 2, the connecting pin 31 can slide within the oblong hole 52. It is understood that the pedal support 3 is initially horizontal, with the connecting pin 31 at the highest position within the oblong hole 52. When a worker steps on the pedal support 3, the pedal support 3 can rotate about the rotation axis 2. At this time, the connecting pin 31 slides from the highest position within the oblong hole 52 to the lowest position within the oblong hole 52. The cooperation between the oblong hole 52 and the connecting pin 31 converts the rotation of the pedal support 3 into axial movement of the piston 5. When the worker stops stepping on the pedal support 3, the spring 7 and the guide assembly 6 cause the piston 5 to move in the opposite direction, and the connecting pin 31 to slide from the lowest position within the oblong hole 52 to the highest position, thereby returning the pedal support 3 to its initial position.

[0053] In addition, a shaft bushing is provided on the outside of the rotating shaft 2, and a shaft bushing is provided between the rotating shaft 2 and the pedal support 3, a piston bushing is provided on the outside of the piston 5, and a piston bushing is provided between the piston 5 and the cylinder body 11, and a pin bushing is provided between the connecting pin 31 and the oblong hole 52. This arrangement can prevent the rotating part from getting stuck due to dust accumulation and the like after long-term use, and uses highly self-lubricating and wear-resistant parts such as bushings, which do not require oiling or adding lubricants, thereby avoiding the need to add lubricants to the rotating part from time to time in the later stage, thereby reducing maintenance costs.

[0054] In this embodiment, Figure 4 and Figure 5 As shown, the guide assembly 6 includes a guide portion 61 and a limiting portion 62. The guide portion 61 is connected to the bottom of the cylinder body 11 and extends upward along the axial direction of the cylinder body 11, and is slidably connected to the guide portion 61. The spring 7 is sleeved on the outer wall of the limiting portion 62 and one end is connected to the limiting portion 62 so that the limiting portion 62 abuts against the piston 5. The limiting portion 62 is pressed down together with the piston 5 during the downward pressure of the piston 5, thereby causing the spring 7 to contract. During the contraction process, the spring 7 will also generate a damping force on the pedal support 3. The limiting portion 62 added between the spring 7 and the piston 5 can avoid direct contact between the spring 7 and the piston 5, so as to avoid the phenomenon of the spring 7 being offset during contraction due to long-term stepping on the pedal support 3.

[0055] Furthermore, the guide portion 61 includes a connector 611 and a rod 612. The connector 611 is screwed to the bottom of the cylinder 11, and the rod 612 is fixed to the top of the connector 611. The axis of the rod 612 coincides with the axis of the cylinder 11. The connector 611 is screwed to the bottom of the cylinder 11 to facilitate assembly of the guide portion 61 to the bottom of the cylinder 11.

[0056] Furthermore, the guide portion 61 includes a stopper cap 613, which is mounted on top of the rod 612 and slidably connected to the cavity of the stopper cap 613. The stopper cap 613 has a larger cross-section than the rod 612, thereby constraining the stopper cap 613 within the cavity. The stopper cap 613 within the cavity prevents the pedal support 3 from being fully depressed during movement, potentially damaging the damping mechanism on the other side of the rotating shaft 2. It also prevents the stopper cap 62 from detaching from the guide portion 61 during the return of the spring 7.

[0057] In addition, a flange 621 is provided at the bottom of the limiting portion 62, and the outer wall of the spring 7 abuts against the inner wall of the flange 621 to prevent the spring 7 from shifting. The provided flange 621 can further prevent the spring 7 from shifting during the downward pressing process, and the flange 621 can also be replaced by an annular groove, which is not specifically limited in this embodiment.

[0058] Furthermore, a limiting groove 51 is provided at the bottom of the piston 5; a protrusion matching the limiting groove 51 is provided at the top of the limiting portion 62 to limit the limiting portion 62, thereby preventing sliding between the piston 5 and the limiting portion 62.

[0059] In addition, an anti-friction pad is provided between the piston 5 and the limiting portion 62 , and the anti-friction pad can further prevent sliding between the piston 5 and the limiting portion 62 .

[0060] In this embodiment, a dust cover 10 is provided on the outside of the pedal support 3. The dust cover 10 can cover two cylinders 11. The dust cover 10 can prevent dust or particles from entering the interior of the product, thereby avoiding jamming. In addition, the electrical part adopts a sealed design to effectively prevent waterproofing to prevent electrical failures caused by rain and the like.

[0061] In this embodiment, a first pin hole is provided on the pedal support 3, and a second pin hole is provided on the rotating shaft 2. The electronically controlled pedal further includes a pin 8 and a stop screw 9. Both the first and second pin holes are adapted to fit within the pin 8, with one end of the pin 8 positioned in the first pin hole and the other end in the second pin hole. The stop screw 9 is threadedly engaged with the first pin hole and abuts against the pin 8. It will be appreciated that the pin 8 ensures synchronous rotation of the rotating shaft 2 and the pedal support 3, thereby ensuring the accuracy of the electronic sensor 4 in detecting the rotation angle of the pedal support 3. Furthermore, the stop screw 9 abuts against the pin 8, preventing displacement of the pin 8 after prolonged rotation.

[0062] The utility model also discloses an electric control pedal assembly, such as Figure 6 As shown, it includes two above-mentioned electric control pedals, and two electric control pedals are respectively connected with different track wheels. Different track wheels are controlled to work by two electric control pedals, so that any electric control pedal can be maintained and repaired in the later stage, thereby reducing maintenance costs.

[0063] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. An electronically controlled pedal, characterized in that: include: A base (1), with cylinder bodies (11) provided at both ends of the base (1); A rotating shaft (2) is rotatably mounted on the base (1) and is located between the two cylinder bodies (11); A pedal support (3) is fixedly connected to the rotating shaft (2); A damping mechanism is arranged in the cylinder (11), and the damping mechanism includes a piston (5) and a guide assembly (6). A spring (7) is arranged between the piston (5) and the bottom of the cylinder (11); the top of the piston (5) is pinned to the pedal support (3), so that when the pedal support (3) rotates around the rotation axis of the rotating shaft (2), the piston (5) can move in the cylinder (11); the guide assembly (6) is configured to limit the offset of the spring (7), so that the spring (7) maintains axial expansion and contraction along the cylinder (11) when the piston (5) moves.

2. The electronically controlled pedal according to claim 1, characterized in that: The guide assembly (6) comprises: A guide portion (61) is connected to the bottom of the cylinder (11) and extends upward along the axis of the cylinder (11); The limiting portion (62) is slidably connected to the guide portion (61), and the spring (7) is sleeved on the outer wall of the limiting portion (62) and one end is connected to the limiting portion (62) so that the limiting portion (62) abuts against the piston (5).

3. The electronically controlled pedal according to claim 2, characterized in that: The guide portion (61) comprises: a rod (612), wherein the axis of the rod (612) coincides with the axis of the cylinder (11); The connecting member (611) is arranged at the bottom of the rod body (612), and the connecting member (611) is screwed to the bottom of the cylinder body (11).

4. The electronically controlled pedal according to claim 3, characterized in that: The guide portion (61) further includes a limiting end cover (613), which is arranged on the top of the rod body (612) and slides in the cavity of the limiting portion (62), wherein the cross section of the limiting end cover (613) is larger than the cross section of the rod body (612).

5. The electronically controlled pedal according to claim 2, characterized in that: The bottom of the limiting portion (62) is provided with a flange (621), and the outer wall of the spring (7) abuts against the inner wall of the flange (621).

6. The electronically controlled pedal according to claim 2, characterized in that: A limiting groove (51) is provided at the bottom of the piston (5); The top of the limiting portion (62) is provided with a protrusion that matches the limiting groove (51).

7. The electronically controlled pedal according to claim 1, characterized in that: An oblong hole (52) is provided on the top of the piston (5), and the oblong hole (52) is tilted downward. A connecting pin (31) is provided on the pedal support (3), and the connecting pin (31) is adapted to the oblong hole (52). When the pedal support (3) rotates around the axis of the rotating shaft (2), the connecting pin (31) can slide in the oblong hole (52).

8. The electronically controlled pedal according to claim 1, characterized in that: A shaft bushing is provided on the outside of the rotating shaft (2), and the shaft bushing is located between the rotating shaft (2) and the pedal support (3); a piston bushing is provided on the outside of the piston (5), and the piston bushing is located between the piston (5) and the cylinder body (11).

9. The electronically controlled pedal according to claim 1, characterized in that: The pedal support (3) is provided with a first pin hole, and the rotating shaft (2) is provided with a second pin hole; The electric control pedal also includes a pin shaft (8) and a limit screw (9), the first pin hole and the second pin hole are both adapted to the pin shaft (8), one end of the pin shaft (8) is located in the first pin hole, and the other end is located in the second pin hole, the limit screw (9) is screwed to the first pin hole and can abut against the pin shaft (8).

10. An electronically controlled pedal assembly, characterized in that: The invention comprises two electrically controlled pedals according to any one of claims 1 to 9, wherein the two electrically controlled pedals are respectively connected to different track wheels.

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