Hydraulic clutch control mechanism and motorcycle

Abstract

The utility model discloses a hydraulic clutch control mechanism and a motorcycle, and the hydraulic clutch control mechanism comprises an upper pump, a lower pump, an upper clutch, a lower clutch and a lower clutch, the first end of the upper pump piston is arranged in the cavity, and the second end of the upper pump piston is arranged outside the upper pump; and the handle is rotatably arranged on the upper pump, a receding sinking table is arranged on the handle, and a boss connected with the second end of the piston of the upper pump in a clamped mode is arranged on the receding sinking table. According to the hydraulic clutch control mechanism and the motorcycle, the receding sinking table and the boss are arranged on the handle, the handle, the receding sinking table and the boss drive the upper pump piston to move, the operation mode that a spiral spring pushes the upper pump piston is replaced, and when the upper pump is filled with brake fluid, the upper pump returns through inertia force of a clutch spring and an oil duct; the initial force value and the overall force value can be reduced, and the riding quality and commodity are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine structure, more specifically, relate to a kind of hydraulic clutch control mechanism.In addition, the utility model further relates to a kind of motorcycle comprising the hydraulic clutch control mechanism described above. BACKGROUND

[0002] Motorcycle hydraulic clutch control mechanism is widely used in modern locomotive and automobile due to its small frictional resistance, high transmission efficiency, can effectively reduce energy loss, and compact structure, light weight, facilitate arrangement in different vehicle models.

[0003] But the existing motorcycle hydraulic clutch control mechanism has the following problems: the brake structure of the existing brake system is designed according to the demand of the brake system, the existing hydraulic clutch control mechanism uses the existing brake system's upper pump structure, and does not design a corresponding upper pump for the clutch control, which results in low force transmission efficiency and displacement efficiency in clutch control, and poor riding quality and commodity of the whole vehicle.

[0004] Therefore, how to improve the riding quality and commodity of the whole vehicle is a problem to be solved by the skilled in the art. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model aims at providing a kind of hydraulic clutch control mechanism, which can reduce initial force value and overall force value by setting displacement sink and boss on handle, replacing coil spring by the cooperation of handle, displacement sink, boss and upper pump piston, and improving riding quality.

[0006] Another object of the utility model is to provide a kind of motorcycle comprising the hydraulic clutch control mechanism described above.

[0007] In order to achieve the above object, the utility model provides the following technical scheme:

[0008] A kind of hydraulic clutch control mechanism, comprising:

[0009] Upper pump, which is provided with a cavity inside;

[0010] Upper pump piston, which is provided with a cavity inside;

[0011] Handle, which is rotatably provided in the upper pump, and is provided with a displacement sink and a boss on the displacement sink, the boss being connected with the second end of the upper pump piston.

[0012] Preferably, the second end of the upper pump piston is sequentially connected to a first return protrusion and a second return protrusion. Both the first return protrusion and the second return protrusion are plate-shaped structures, and the first return protrusion and the second return protrusion are perpendicular to each other to form a T-shaped structure.

[0013] Preferably, the boss is engaged between the second return boss and the upper pump piston.

[0014] Preferably, there are two bosses, which are coaxially arranged, and the distance between the two bosses is greater than the thickness of the first return protrusion. The two bosses are respectively located on both sides of the first return protrusion.

[0015] Preferably, the upper pump piston is provided with two annular grooves, and a first sealing ring and a second sealing ring are respectively provided in the two annular grooves. The first sealing ring and the second sealing ring are rectangular sealing rings or O-rings.

[0016] Preferably, it further includes a lower pump, the lower pump having an internal cavity, a lower pump piston being disposed within the cavity, an elastic element being disposed between the lower pump piston and the lower pump, and a steel ball being disposed on the side of the lower pump piston opposite to the elastic element.

[0017] Preferably, the lower pump piston is provided with two annular grooves, and a third sealing ring and a fourth sealing ring are respectively provided in the two annular grooves.

[0018] Preferably, the lower pump is provided with a retaining ring.

[0019] A motorcycle includes a hydraulic clutch control mechanism, wherein the hydraulic clutch control mechanism is any of the hydraulic clutch control mechanisms described above.

[0020] This utility model provides a hydraulic clutch operating mechanism, in which a boss is provided in the groove of the relief platform. The boss is engaged with the second end of the upper pump piston. The boss can be secured by a press-fit pin or by machining. When the upper pump is filled with brake fluid, the upper pump piston is normally connected to the upper pump housing, and brake fluid can be filled normally. The relief platform can ensure the assembly of the upper pump piston and the handle. The return spring is eliminated. The return is achieved by the clutch spring and the inertial force of the oil passage, which effectively reduces the operating force value, thereby improving the riding quality and marketability of the whole vehicle. Attached Figure Description

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described in the following are only a part of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings.

[0022] Figure 1 The cross-sectional view of the lower pump provided by the present application is shown in the figure.

[0023] Figure 2 The cross-sectional view of the upper pump provided by the present application is shown in the figure.

[0024] Figure 3 The partial structure schematic view of the handle provided by the present application is shown in the figure.

[0025] Figure 4 The structure schematic view of the upper pump piston provided by the present application is shown in the figure.

[0026] Reference signs:

[0027] 1-upper pump; 2-upper pump piston; 201-first return bump; 202-second return bump; 3-handle; 301-give way sink table; 302-boss; 4-first sealing ring; 5-second sealing ring; 6-lower pump; 7-lower pump piston; 8-elastic member; 9-steel ball; 10-third sealing ring; 11-fourth sealing ring; 12-retaining ring; 13-box cover. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0029] The core of the present application is to provide a hydraulic clutch control mechanism, which improves the riding quality and commodity property.

[0030] Another core of the present application is to provide a motorcycle comprising the above hydraulic clutch control mechanism.

[0031] It should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front", and "rear" is based on the orientation or positional relationship shown in the accompanying drawings and is only for the purpose of facilitating the description of this application and simplifying the description. It is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] This application provides a hydraulic clutch operating mechanism, comprising: an upper pump 1, an upper pump piston 2, and a handle 3;

[0033] The upper pump 1 has an internal cavity;

[0034] The first end of the upper pump piston 2 is located in the cavity, and the second end of the upper pump piston 2 is located outside the upper pump 1;

[0035] The handle 3 is rotatably mounted on the upper pump 1. The handle 3 is provided with a relief counter 301, and the relief counter 301 is provided with a boss 302 that engages with the second end of the upper pump piston 2.

[0036] Specifically, the structure of handle 3 is consistent with that of a conventional locomotive handle. The recessed platform 301 is a term in the mold manufacturing field, referring to a partially sunken or recessed structure designed in mold design to meet certain specific structural or functional requirements. This structure is typically used for functions such as clearance, positioning, and coordination with other components. In this application, the structure of the recessed platform 301 is shown in the attached figure. Figure 3 As shown, the U-shaped structure on the handle 3 has a boss 302 in the groove of the recessed platform 301. The boss 302 is engaged with the second end of the upper pump piston 2. The boss 302 can be secured by a press-fit pin or by machining. When the upper pump is filled with brake fluid, the upper pump piston 2 is normally connected to the housing of the upper pump 1, and brake fluid can be filled normally. The recessed platform 301 can ensure that the upper pump piston 2 is assembled with the handle 3. The conventional brake handle uses a spring to return the upper pump piston, but the structure of this application eliminates the return spring and returns the piston through the clutch spring and the inertial force of the oil passage, which effectively reduces the operating force.

[0037] Based on the above embodiment, the second end of the upper pump piston 2 is sequentially connected to a first return protrusion 201 and a second return protrusion 202. Both the first return protrusion 201 and the second return protrusion 202 are plate-shaped structures, and the first return protrusion 201 and the second return protrusion 202 are perpendicular to each other to form a T-shaped structure.

[0038] Specifically, the detailed structure of the upper pump piston 2 can be found in the appendix. Figure 4, the box cover 13 and part of other structures are conventional structures, and will not be described in detail, the upper pump piston 2 can be directly selected from the existing structure, and the second end portion thereof is improved, the first return bump 201 and the second return bump 202 are sequentially connected and arranged at the second end portion, the first return bump 201 is perpendicular to the second end portion of the upper pump piston 2, and the second return bump 202 is perpendicular to the first return bump 201, that is, a T-shaped extension section is extended from the second end portion of the upper pump piston 2, and the boss 302 can be clamped with the T-shaped extension section.

[0039] On the basis of the above embodiment, the boss 302 is clamped between the second return bump 202 and the upper pump piston 2.

[0040] Specifically, the rotation axis of the handle 3 is arranged outside the shell of the upper pump 1, when the first end portion of the handle 3 is rotated, the second end portion of the handle 3 is clamped with the T-shaped extension section and can drive the upper pump piston 2 to move along the internal cavity of the upper pump 1.

[0041] On the basis of the above embodiment, the boss 302 is provided with two, and the two bosses 302 are coaxially arranged, the distance between the two bosses 302 is greater than the thickness of the first return bump 201, and the two bosses 302 are arranged on the two sides of the first return bump 201.

[0042] Specifically, the boss 302 is provided with two, and the two bosses 302 are arranged at the two end portions of the inner wall of the U-shaped accommodation boss 301, and the distance between the two bosses 302 is greater than the thickness of the first return bump 201 to ensure that the two bosses 302 can clamp the first return bump 201 in the middle, and the second return bump 202 is synchronously actuated by the two bosses 302 on the two sides of the first return bump 201, to ensure the reliability of the structure. Generally, the central axes of the two bosses 302 are overlapped to ensure that the two bosses 302 can act on the second return bump 202.

[0043] On the basis of the above embodiment, the upper pump piston 2 is provided with two annular grooves, the first sealing ring 4 and the second sealing ring 5 are arranged in the two annular grooves respectively, and the first sealing ring 4 and the second sealing ring 5 are rectangular sealing rings or O-shaped sealing rings.

[0044] Specifically, please refer to the accompanying drawings Figure 2 and the accompanying drawings Figure 4In the threaded section of the upper pump piston 2, two annular grooves are arranged respectively on both sides, and a first sealing ring 4 and a second sealing ring 5 are arranged in the two annular grooves respectively. The first sealing ring 4 and the second sealing ring 5 are selected from rectangular sealing rings or O-shaped sealing rings. A conventional brake upper pump selects a Y-shaped sealing ring. The Y-shaped sealing ring has the advantages of better sealing effect when the pressure is too large and poor initial sealing. When the brake is braked, the sealing pressure is large, about 10 MPa. When the clutch is operated, the sealing pressure is only 1 MPa. Therefore, the original Y-shaped sealing ring design does not meet the clutch operation. The O-shaped or rectangular sealing ring is used to replace the Y-shaped sealing ring to optimize the initial sealing effect, improve the displacement efficiency and force efficiency of the whole system, and the actual measurement can improve 5% to 10%.

[0045] In some embodiments, the lower pump 6 is further included, the inside of the lower pump 6 is provided with a cavity, the cavity is provided with a lower pump piston 7, and the lower pump piston 7 and the lower pump 6 are provided with an elastic element 8. The side of the lower pump piston 7 away from the elastic element 8 is provided with a steel ball 9.

[0046] Specifically, please refer to the accompanying drawings Figure 1 The lower pump 6 is an aluminum alloy casting, connected with the upper pump 1 through an oil pipe, a screw and the like, and connected with the clutch through a control rod. The cavity of the lower pump 6 extends downward, and the lower pump piston 7 arranged in the cavity can move up and down along the cavity. The elastic element 8, which is a conventional coil spring, is arranged between the lower pump shell and the lower pump piston 7. The side of the lower pump piston 7 away from the elastic element 8 is provided with a steel ball 9. The coil spring can provide a compression force to realize the combination and separation of the clutch, and the steel ball 9 can play a role of assisting force and increasing force.

[0047] On the basis of the above-mentioned embodiments, two annular grooves are arranged on the lower pump piston 7, and a third sealing ring 10 and a fourth sealing ring 11 are arranged in the two annular grooves respectively.

[0048] Specifically, please refer to the accompanying drawings Figure 1 The side of the lower pump piston 7 is provided with two annular grooves, and the third sealing ring 10 and the fourth sealing ring 11 are arranged in the two annular grooves. The third sealing ring 10 and the fourth sealing ring 11 are a brake fluid resistant sealing ring and an oil resistant sealing ring respectively. The sealing ring and the lower pump 6 have a sticking damping, so the outer diameter is not allowed to be too large, which affects the damping and the return of the lower pump piston 7. In this embodiment, the outer diameter is not greater than 2.5 mm. It has been measured that when the outer diameter is 2.65 mm, the return force value is 100 N, which seriously affects the return of the piston.

[0049] On the basis of the above-mentioned embodiments, the third sealing ring 10 and the fourth sealing ring 11 are a silicone rubber sealing ring, a fluororubber sealing ring, a polytetrafluoroethylene coating sealing ring or a polytetrafluoroethylene coated sealing ring.

[0050] Specifically, the sealing ring is selected from a polytetrafluoroethylene coating sealing ring, because polytetrafluoroethylene has a very low friction coefficient and good chemical corrosion resistance. By coating a polytetrafluoroethylene film on the surface of the sealing ring, the friction between the sealing ring and the contact surface can be significantly reduced. The polytetrafluoroethylene coated sealing ring firmly combines a layer of polytetrafluoroethylene film on the inner and outer surfaces of the rubber sealing ring to form a coated structure, thereby reducing the direct contact between the sealing ring and the contact surface and reducing the adhesion resistance. For a fluororubber sealing ring, fluororubber has excellent high temperature resistance, chemical corrosion resistance and oil resistance, and its surface energy is low, which can reduce adhesion to the contact surface. For a silicone rubber sealing ring, silicone rubber has good elasticity and low temperature resistance, and the surface is smooth, which can reduce the friction between the sealing ring and the contact surface.

[0051] In summary, the application limits the size of the third sealing ring 10 and the fourth sealing ring 11, and also limits the material selection. The combination of the two can greatly reduce the adhesion resistance and improve the reliability.

[0052] On the basis of the above embodiment, the lower pump 6 is provided with a check ring 12.

[0053] Specifically, please refer to the accompanying Figure 1 The lower end opening of the lower pump 6 is provided with a check ring 12, which is a standard check ring, which can ensure that the lower pump piston 7 will not fall out of the lower pump 6 when moving.

[0054] For the application, the following advantages are provided:

[0055] 1. The upper pump 1 cancels the spiral spring compared to the prior art A, which reduces the initial force value and the overall force value by about 20% (about 6kg force with the spiral spring, about 5kg force without the spiral spring) ;

[0056] 2. The upper pump sealing ring is adjusted from a Y-shaped ring to an O-shaped or rectangular sealing ring: the advantage of the Y-shaped sealing ring is that it has strong sealing ability when deformed, so the structure is more suitable for the brake system. When the pressure in the oil cylinder of the brake system increases, the sealing ring exceeds the oil supplement hole by more than 5mm. When the sealing ring just passes through the oil supplement hole, the pressure in the cavity will increase rapidly, which will seriously affect the sealing effect of the sealing ring at this time. By adjusting to an O-shaped sealing ring or a rectangular sealing ring, the deformation amount during initial sealing can be effectively reduced, and the sealing effect can be effectively improved.

[0057] 3. The outer diameter of the lower pump sealing ring is optimized to reduce the adhesion resistance and improve the reliability.

[0058] In addition to the above hydraulic clutch operating mechanism, the utility model also provides a motorcycle comprising the hydraulic clutch operating mechanism disclosed in the above embodiment. The structure of other parts of the motorcycle is referred to the prior art, and will not be described here.

[0059] The various embodiments are described in the specification by way of progression, each building on the last to facilitate ease of understanding. The same reference numerals are utilized throughout the specification and drawings to refer to the same or like parts.

[0060] The above describes in detail the hydraulic clutch control mechanism and the motorcycle provided by the utility model. The principle and implementation mode of the utility model are described by applying specific examples in this paper. The above embodiment description is only used to help understand the method and core idea of the utility model. It should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the utility model claim.

Claims

1. A hydraulic clutch operating mechanism, characterized in that, include: The upper pump (1) has an internal cavity; The upper pump piston (2) has its first end located in the cavity, and its second end located outside the upper pump (1); The handle (3) is rotatably mounted on the upper pump (1). The handle (3) is provided with a relief countersink (301). The relief countersink (301) is provided with a boss (302) that engages with the second end of the upper pump piston (2).

2. The hydraulic clutch operating mechanism according to claim 1, characterized in that, The second end of the upper pump piston (2) is connected to a first return protrusion (201) and a second return protrusion (202) in sequence. The first return protrusion (201) and the second return protrusion (202) are both plate-shaped structures. The first return protrusion (201) and the second return protrusion (202) are perpendicular to each other to form a T-shaped structure.

3. The hydraulic clutch operating mechanism according to claim 2, characterized in that, The boss (302) is engaged between the second return boss (202) and the upper pump piston (2).

4. The hydraulic clutch operating mechanism according to claim 3, characterized in that, The boss (302) is provided in two parts, and the two bosses (302) are coaxially arranged. The distance between the two bosses (302) is greater than the thickness of the first return bump (201). The two bosses (302) are respectively located on both sides of the first return bump (201).

5. The hydraulic clutch operating mechanism according to claim 4, characterized in that, The upper pump piston (2) is provided with two annular grooves, and a first sealing ring (4) and a second sealing ring (5) are respectively provided in the two annular grooves. The first sealing ring (4) and the second sealing ring (5) are rectangular sealing rings or O-rings.

6. The hydraulic clutch operating mechanism according to claim 1, characterized in that, It also includes a lower pump (6), the lower pump (6) has a cavity inside, a lower pump piston (7) is provided in the cavity, an elastic element (8) is provided between the lower pump piston (7) and the lower pump (6), and a steel ball (9) is provided on the side of the lower pump piston (7) away from the elastic element (8).

7. The hydraulic clutch operating mechanism according to claim 6, characterized in that, The lower pump piston (7) is provided with two annular grooves, and a third sealing ring (10) and a fourth sealing ring (11) are respectively provided in the two annular grooves.

8. The hydraulic clutch operating mechanism according to claim 6 or 7, characterized in that, The lower pump (6) is provided with a retaining ring (12).

9. A motorcycle, comprising a hydraulic clutch control mechanism, characterized in that, The hydraulic clutch control mechanism is the hydraulic clutch control mechanism as described in any one of claims 1 to 8.

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