Shifting fork with function of preventing gear skipping after gear shifting

Abstract

The utility model discloses a shifting fork with a function of preventing gear skipping after gear shifting, which comprises a gearbox and a shifting fork, a heat dissipation assembly is arranged in the middle of the gearbox and the shifting fork, a protection assembly is arranged in the middle of the heat dissipation assembly, and the protection assembly is matched with the gearbox and the shifting fork; the heat dissipation assembly comprises a plurality of heat conduction pieces attached to the middle of the gearbox and the middle of the shifting fork, and the middle of each heat conduction piece is fixedly connected with a plurality of copper pipes. The heat dissipation assembly is characterized in that heat dissipation is carried out on the gearbox and the shifting fork through the heat dissipation assembly, and heat absorption, heat conduction and heat dissipation can be carried out on the gearbox and the shifting fork through the heat conduction pieces, the copper pipes and the heat dissipation pieces; the temperature inside the gearbox and the shifting fork is reduced, high temperature is prevented from affecting work of the shifting fork, heat conduction pieces, copper pipes and heat dissipation pieces are fixed to the outer walls of the gearbox and the shifting fork through hoops, heat dissipation can be effectively conducted on the gearbox and the shifting fork, the heat conduction pieces, the copper pipes and the heat dissipation pieces can be conveniently detached through the detachable hoops, and the heat dissipation efficiency is improved. And subsequent maintenance of the gearbox and the shifting fork is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear shift fork field, especially in a gear shift fork with anti -skipping function after gear shifting. BACKGROUND

[0002] In a manual transmission, the shift fork is usually installed in the housing of the transmission. It is located near the gear and synchronizer assembly, and is connected to the shift fork by a shift fork shaft. The shift fork shaft is generally fixed in the bearing hole of the transmission housing, and the shift fork can slide freely on the shift fork shaft. For example, in a typical five-speed manual transmission, there are three shift fork shafts, each of which has one or more shift forks installed. The positions of these shift forks correspond to the gears and synchronizers of each gear position. When the driver operates the shift lever, a series of transmission mechanisms (such as shift rods, selection shafts, etc.) connected by the shift lever make the shift fork shaft rotate or move, thereby driving the shift fork to actuate the synchronizer of the corresponding gear position, achieving the meshing or disengaging of the gear, and completing the gear shifting action.

[0003] Chinese patent application number: CN202420852578.9, provides a kind of separate shift fork pin assembly structure, this scheme is mainly needed to separate or joint by separate shift fork as the component to be assembled, by the output shaft of press-fit clamp installs hinge barrel to extrude the separate shaft on sleeve, extrude and assemble separate shift fork, use the top pin to extrude bearing with top end to complete assembly, realize the effect of press-fit separate shaft in conveying line movement process, assembly quality is stable and assembly efficiency is high, but, shift fork is installed in transmission, there are many moving parts in transmission, such as the meshing between gear, the combination and separation of synchronizer and gear, the rotation of bearing, etc. The friction between these moving parts generates heat, for example, in a manual transmission, when the vehicle frequently shifts gears, the shift fork pushes the synchronizer to combine with the gear, and the friction between the synchronizer slider and the gear generates a large amount of heat. If the heat cannot be dissipated in time, it will cause the temperature inside the transmission to rise, which may affect the work of the shift fork.

[0004] Therefore, we propose a kind of shift fork with anti -skipping function after gear shifting. INVENTION CONTENTS

[0005] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a kind of shift fork with anti -skipping function after gear shifting, which is cooled by heat dissipation assembly, and heat sink, copper pipe and heat sink can absorb heat, conduct heat and dissipate heat for transmission and shift fork, reduce the temperature inside transmission and shift fork, and prevent high temperature from affecting the work of shift fork.

[0006] The above technical purpose of the utility model is realized by the following technical scheme:

[0007] The application discloses a shift fork with anti-jumping function after gear shifting, which comprises a gearbox and a shift fork, wherein a heat dissipation assembly is arranged in the middle part of the gearbox and the shift fork, a protection assembly is arranged in the middle part of the heat dissipation assembly, and the protection assembly is matched with the gearbox and the shift fork; the heat dissipation assembly comprises a plurality of heat conduction sheets which are attached to the middle part of the gearbox and the shift fork, a plurality of copper pipes are fixedly connected to the middle part of the heat conduction sheets, a plurality of heat dissipation fins are fixedly connected to the middle part of the copper pipes, and the heat dissipation fins are attached to the heat conduction sheets.

[0008] By arranging the heat dissipation assembly comprising the heat conduction sheets, the copper pipes and the heat dissipation fins in the middle part of the gearbox and the shift fork and arranging the protection assembly matched with the gearbox and the shift fork in the middle part of the heat dissipation assembly, the gearbox and the shift fork can be effectively cooled, and the protection assembly can protect the gearbox, the shift fork and the heat dissipation assembly.

[0009] Further, two pairs of symmetrical clamps are attached to the middle part of the heat conduction sheets, and the clamps are distributed in a staggered manner on the heat conduction sheets.

[0010] By attaching the two pairs of symmetrical clamps to the middle part of the heat conduction sheets in a staggered manner, the heat conduction sheets, the copper pipes and the heat dissipation fins can be fixed to the outer wall of the gearbox and the shift fork, so that the cooling effect is ensured and the subsequent disassembly operation is facilitated.

[0011] Further, the protection assembly comprises a pair of symmetrical protection shells, and the inner walls of the protection shells are attached to the heat dissipation fins.

[0012] By arranging the pair of symmetrical protection shells with the inner walls attached to the heat dissipation fins, the gearbox, the shift fork and the heat dissipation assembly can be wrapped and protected by the protection shells, so that the damage of foreign matters to the gearbox, the shift fork and the heat dissipation assembly is prevented, and the cooling function of the heat dissipation assembly is not affected.

[0013] Further, the front end and the rear end of the protection shell are fixedly connected with connecting shells which are matched with the clamps.

[0014] By fixedly connecting the connecting shells matched with the clamps to the front end and the rear end of the protection shell, the connecting relationship between the protection assembly and the heat dissipation assembly is further stabilized, so that the whole structure is more compact and stable.

[0015] Further, a plurality of fixed bolts are threadedly connected to the inner side of the connecting shell, the fixed bolts penetrate the clamps, and the bolts are threadedly connected with the clamps.

[0016] Further, the upper end and the lower end of the connecting shell are fixedly connected with baffles which are matched with the gearbox and the shift fork.

[0017] Further, a connecting sheet is fixedly connected to the middle part of the clamp, and a screw hole matched with the bolt is formed in the middle part of the connecting sheet.

[0018] Further, a slot matched with the gearbox and the shift fork is formed in the middle part of the baffle.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1、 through the heat dissipation assembly to the gearbox and shift fork radiate, heat conduction piece, copper pipe, fin can absorb heat, heat conduction, radiate to gearbox and shift fork, reduce the temperature inside gearbox and shift fork, prevent high temperature influence shift fork work;

[0021] 2、 utilize the hoop and fix heat conduction piece, copper pipe, fin on the outer wall of gearbox and shift fork, can effectively radiate gearbox and shift fork, and the detachable hoop, it is convenient to heat conduction piece, copper pipe, fin is dismantled, it is convenient to maintain gearbox and shift fork subsequently;

[0022] 3、 through the protection assembly protection gearbox and shift fork, heat dissipation assembly, prevent the outside sundries damage gearbox and shift fork, heat dissipation assembly, utilize the protection shell and wrap heat dissipation assembly, simultaneously can not influence the heat dissipation effect of heat dissipation assembly, simultaneously realize the effect of radiating, protection. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the overall structure schematic diagram in this embodiment;

[0024] Figure 2 It is the structure schematic diagram of overall split in this embodiment;

[0025] Figure 3 It is the structure schematic diagram of heat dissipation assembly split in this embodiment;

[0026] Figure 4 It is the structure schematic diagram of heat dissipation assembly separation in this embodiment;

[0027] Figure 5 It is the structure schematic diagram of hoop in this embodiment.

[0028] In the drawing, 1, gearbox and shift fork;2, heat dissipation assembly;3, protection assembly;201, heat conduction piece;202, copper pipe;203, fin;204, hoop;301, protection shell;302, connecting shell;303, baffle;304, fixed bolt. DETAILED DESCRIPTION

[0029] The utility model will be further described in detail below in connection with the drawings.

[0030] Same parts are indicated by same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom surface" and "top surface", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0031] Referring to Figures 1-5 As shown in the utility model more preferred embodiment of a shift with anti -shifting function fork, including gearbox and fork 1, the middle part of gearbox and fork 1 is provided with heat dissipation assembly 2, the middle part of heat dissipation assembly 2 is provided with protective assembly 3, protective assembly 3 is adapted with gearbox and fork 1;Heat dissipation assembly 2 includes multiple heat conduction sheets 201 that are attached to the middle part of gearbox and fork 1, the middle part of heat conduction sheet 201 is fixedly connected with multiple copper pipes 202, the middle part of copper pipe 202 is fixedly connected with multiple radiators 203, and the radiator 203 is attached to the heat conduction sheet 201.

[0032] By setting heat dissipation assembly 2 containing heat conduction sheet 201, copper pipe 202 and radiator 203 in the middle part of gearbox and fork 1, and setting protective assembly 3 adapted with gearbox and fork 1 in the middle part of heat dissipation assembly 2, the effect that both effectively dissipating heat for gearbox and fork 1 and protecting gearbox and fork 1 and heat dissipation assembly 2 is achieved.

[0033] The middle part of heat conduction sheet 201 is attached to two pairs of symmetrical clamps 204, and the clamps 204 are distributed staggeredly with the heat conduction sheet 201.

[0034] By attaching the two pairs of symmetrical clamps 204 staggeredly in the middle part of heat conduction sheet 201, the effect that heat conduction sheet 201, copper pipe 202 and radiator 203 are fixed on the outer wall of gearbox and fork 1 is achieved, so as to facilitate subsequent possible disassembly operation while ensuring heat dissipation.

[0035] The protective assembly 3 includes a pair of symmetrical protective shells 301, and the inner wall of the protective shell 301 is attached to the radiator 203.

[0036] By setting a pair of symmetrical protective shells 301 with the inner wall attached to the radiator 203, the effect that the protective shell 301 is used to wrap and protect gearbox and fork 1 and heat dissipation assembly 2 to prevent damage from external debris is achieved, and the heat dissipation function of heat dissipation assembly 2 is not affected.

[0037] The front and rear ends of the protective shell 301 are fixedly connected with a connecting shell 302, and the connecting shell 302 is adapted with the clamp 204.

[0038] By fixedly connecting the connecting shell 302 adapted with the clamp 204 at the front and rear ends of the protective shell 301, the effect that the connection relationship between the protective assembly 3 and the heat dissipation assembly 2 is further stabilized is achieved, so that the whole structure is more compact and stable.

[0039] Multiple fixed bolts 304 are threadedly connected to the inner side of the connecting shell 302, the fixed bolts 304 penetrate the clamp 204, and the bolt 304 is threadedly connected with the clamp 204.

[0040] By setting multiple fixing bolts 304 which penetrate through the connecting shell 302 and are screwed with the hoop 204, the protective assembly 3 is firmly fixed on the heat dissipation assembly 2 and the related components of the gearbox and shift fork 1, ensuring the stability of the overall structure.

[0041] The upper and lower ends of the connecting shell 302 are fixedly connected with baffles 303 which are adapted to the gearbox and shift fork 1.

[0042] By fixedly connecting the baffles 303 which are adapted to the gearbox and shift fork 1 on the upper and lower ends of the connecting shell 302, the gearbox and shift fork 1 are further protected from the top and bottom directions, preventing foreign matters from invading and damaging the internal components from these directions.

[0043] The middle part of the hoop 204 is fixedly connected with a connecting plate, and the middle part of the connecting plate is provided with a screw hole which is adapted to the bolt 304.

[0044] By setting the connecting plate with the screw hole which is adapted to the bolt 304 in the middle part of the hoop 204, the hoop 204 can be tightly connected with the connecting shell 302 through the fixing bolt 304, thereby stabilizing the overall structure.

[0045] The middle part of the baffle 303 is provided with a slot which is adapted to the gearbox and shift fork 1.

[0046] By setting the slot which is adapted to the gearbox and shift fork 1 in the middle part of the baffle 303, the gearbox and shift fork 1 are protected without hindering their normal installation and work, ensuring the rationality and practicality of the overall structure.

[0047] Specific implementation process: first, the plurality of heat conduction sheet 201 closely fits in the middle part of the gearbox and shift fork 1, ensure that it is fully contacted to achieve good heat conduction, then, the copper pipe 202 is accurately fixed and connected in the middle part of the heat conduction sheet 201, then the copper pipe 202 is fixed and connected with a plurality of heat dissipation sheet 203 in the middle part, and the heat dissipation sheet 203 is closely attached to the heat conduction sheet 201, thereby constructing the main structure of the heat dissipation assembly 2, then, two pairs of symmetric and staggered distribution of the clamp 204 is attached to the middle part of the heat conduction sheet 201, the heat conduction sheet 201, copper pipe 202 and heat dissipation sheet 203 are stably fixed on the outer wall of the gearbox and shift fork 1 by the clamp 204, then, a pair of protective shell 301 is installed in the middle part of the heat dissipation assembly 2, the inner wall of the protective shell 301 is attached to the heat dissipation sheet 203, which plays a preliminary protection role for the internal components, then the connecting shell 302 is fixed and connected at the front and rear ends of the protective shell 301, and the connecting shell 302 is matched with the clamp 204, then a plurality of fixed bolts 304 are connected on the inner side of the connecting shell 302, the fixed bolts 304 are threaded through the clamp 204 and are screwed, further stabilizing the connection between the protective assembly 3 and the heat dissipation assembly 2 and the gearbox and shift fork 1, finally, the baffle 303 is fixed and connected at the upper and lower ends of the connecting shell 302, the baffle 303 is matched with the gearbox and shift fork 1, and the adaptive slot is opened in the middle part of the baffle 303, which not only realizes the protection of the gearbox and shift fork 1 in the upward and downward directions, but also does not affect the normal installation and work, in the whole process, the installation precision and connection firmness of each part need to be strictly controlled, to ensure that the shift fork with anti-jumping function can normally work, effectively realize the heat dissipation and protection function, and ensure the stable work of the gearbox and shift fork under various working conditions, prolong its service life and improve the work reliability.

[0048] The basic principle and main features of the present application are shown and described above, and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A shift fork with anti-shifting function after gear shifting, characterized in that: The application relates to a gearbox and shift fork (1), wherein a heat dissipation assembly (2) is arranged in the middle of the gearbox and shift fork (1), a protection assembly (3) is arranged in the middle of the heat dissipation assembly (2), and the protection assembly (3) is matched with the gearbox and shift fork (1). The heat dissipation assembly (2) comprises a plurality of heat conduction sheets (201) matched with the middle of the gearbox and shift fork (1), the middle of the heat conduction sheet (201) is fixedly connected with a plurality of copper pipes (202), the middle of the copper pipe (202) is fixedly connected with a plurality of heat dissipation fins (203), and the heat dissipation fin (203) is matched with the heat conduction sheet (201).

2. The shift fork with anti-shifting function after gear shifting according to claim 1, characterized in that: The middle of the heat conduction sheet (201) is matched with two pairs of symmetrical clamps (204), and the clamps (204) are distributed in a staggered mode with the heat conduction sheet (201).

3. The shift fork with anti-shifting function after gear shifting according to claim 1, characterized in that: The protection assembly (3) comprises a pair of symmetrical protection shells (301), and the inner wall of the protection shell (301) is matched with the heat dissipation fin (203).

4. The shift fork with anti-shifting function after gear shifting according to claim 3, characterized in that: The front and rear ends of the protection shell (301) are fixedly connected with connecting shells (302), and the connecting shell (302) is matched with the clamp (204).

5. The shift fork with anti-shifting function after gear shifting according to claim 4, characterized in that: The inner side of the connecting shell (302) is screw-connected with a plurality of fixing bolts (304), the fixing bolt (304) penetrates the clamp (204), and the bolt (304) is screw-connected with the clamp (204).

6. The shift fork with anti-shifting function after gear shifting according to claim 5, characterized in that: The upper and lower ends of the connecting shell (302) are fixedly connected with baffles (303), and the baffle (303) is matched with the gearbox and shift fork (1).

7. The shift fork with anti-shifting function after gear shifting according to claim 5, characterized in that: The middle of the clamp (204) is fixedly connected with a connecting sheet, and the middle of the connecting sheet is provided with screw holes matched with the bolts (304).

8. The shift fork with anti-shifting function after gear shifting according to claim 6, characterized in that: The middle of the baffle (303) is provided with a slot matched with the gearbox and shift fork (1).

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