Buckle plastic-coated sheet structure installed on fork foot of shifting fork

Abstract

The utility model belongs to the technical field of structural design of automobile gearbox parts, and particularly relates to a buckle plastic-coated sheet structure installed on a fork foot of a shifting fork. Through the cooperation of the upper plastic-coated sheet and the lower plastic-coated sheet, the shifting fork feet can be efficiently and quickly coated, the overall structure is compact, the use is convenient and flexible, the assembly takt of the shifting fork piece can be effectively accelerated, and the production efficiency is improved; according to the shifting fork, the fork feet of the shifting fork are locally coated with plastic through the plastic body, in the operation process of a gearbox, friction between the fork feet of the shifting fork and a gear sleeve can be effectively reduced, impact of the shifting fork on the gear sleeve during gear shifting is relieved, and then noise of the gearbox is reduced; according to the plastic-coated sheet structure, the upper buckle and the lower buckle are buckled, so that the upper plastic-coated sheet and the lower plastic-coated sheet can be stably arranged in the upper groove and the lower groove of the fork foot of the shifting fork, and the plastic-coated sheet structure can continuously play a role and is not easy to fall off.

Description

Technical Field

[0001] The utility model belongs to the technical field of automobile gearbox part structure design, and particularly relates to a buckle plastic-wrapped sheet structure installed on a shift fork leg. Background Art

[0002] The widely used piston engines in automobiles currently have a narrow range of output torque and speed. To adapt to constantly changing driving conditions and optimize engine operation (high power, low fuel consumption), a gearbox is incorporated into the vehicle's transmission system. The shift fork, as the executor of the gearshifting process within the gearbox, is a crucial component in the system. The shift fork's structural design and machining quality directly impact the performance of the gearbox.

[0003] The shift fork is connected to the shift handle through a slider and is mainly used for transmission shifting; the shift fork fork legs are the parts that often rub against the synchronizer ring, so the wear resistance of the shift fork fork legs is particularly important.

[0004] The fork legs of the prior art generally use the injection molding process to cover the fork leg metal parts. The prior art injection molding covering process of the fork legs requires an injection mold, which has high equipment costs, long machine adjustment time, slow production cycle, and many defects. Utility Model Content

[0005] The technical problem to be solved by the utility model is: to provide a snap-on plastic-wrapped sheet structure installed on the fork legs, which has a compact structure, is easy and flexible to use, can efficiently and quickly cover the fork legs, can effectively speed up the assembly cycle, improve production efficiency, and significantly reduce production costs.

[0006] The technical solutions adopted by the present invention to solve the above technical problems are:

[0007] A buckle plastic-coated sheet structure mounted on the fork leg of a shift fork, comprising an upper plastic-coated sheet 102 and a lower plastic-coated sheet 103 symmetrically arranged, wherein the upper plastic-coated sheet 102 and the lower plastic-coated sheet 103 are fixedly mounted on the metal part of the fork leg of the shift fork 101 by a buckle connection;

[0008] The lower end surface of the upper plastic package sheet 102 is provided with an upper buckle 104 and an upper buckle 2 105, and the upper end surface of the lower plastic package sheet 103 is provided with a lower buckle 106 and a lower buckle 2 107 that match the upper buckle 104 and the upper buckle 2 105;

[0009] The upper plastic-wrapped sheet 102 and the lower plastic-wrapped sheet 103 are connected into one piece by buckling with the lower buckle 106 and the lower buckle 2 107 through the upper buckle 104 and the upper buckle 2 105 respectively.

[0010] Furthermore, there are two groups of the upper plastic-covering sheets 102 and the lower plastic-covering sheets 103 , and the two groups of the upper plastic-covering sheets 102 and the lower plastic-covering sheets 103 are fixedly mounted on the two fork legs of the shift fork 101 , respectively.

[0011] Furthermore, an upper groove 108 and a lower groove 109 are respectively provided on the upper and lower surfaces of the metal part of the fork leg of the fork 101, and the contour shapes of the upper groove 108 and the lower groove 109 match the contour shapes of the upper overmolding sheet 102 and the lower overmolding sheet 103 respectively.

[0012] Furthermore, the upper groove 108 and the lower groove 109 are directly formed with a through hole 10 and a through hole 2 11 .

[0013] Furthermore, the inner diameter of the through hole 10 matches the outer diameter of the upper buckle 104 and the lower buckle 106 when they are fastened together.

[0014] Furthermore, the inner diameter of the second through hole 11 matches the outer diameter of the second upper buckle 105 and the second lower buckle 107 when they are fastened together.

[0015] Furthermore, the axial depth of the through hole 10 matches the total length of the upper buckle 104 and the lower buckle 106 after being buckled together.

[0016] Furthermore, the axial depth of the second through hole 11 matches the total length of the second upper buckle 105 and the second lower buckle 107 after being buckled together.

[0017] Compared with the prior art, the present invention has the following main advantages:

[0018] 1. The utility model can efficiently and quickly cover the fork legs of the shift fork by cooperating with the upper plastic sheet and the lower plastic sheet. The overall structure is compact and easy to use. It can effectively speed up the assembly cycle of the shift fork and improve production efficiency.

[0019] 2. The utility model partially coats the fork legs of the shift fork with plastic, which can effectively reduce the friction between the fork legs and the gear sleeve during the operation of the gearbox, reduce the impact of the shift fork on the gear sleeve during shifting, and thus improve the gearbox noise;

[0020] 3. The utility model can stably install the upper and lower plastic-wrapped sheets in the upper and lower grooves of the fork legs by fastening the upper and lower buckles, so that the plastic-wrapped sheet structure can continue to play a role and is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the buckle plastic-wrapped sheet structure in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the assembly of the buckle plastic-wrapped sheet structure to the fork leg in the embodiment of the present utility model;

[0023] Figure 3 This is a schematic diagram of the buckle plastic-coated sheet structure installed on the fork leg in an embodiment of the present utility model.

[0024] In the figure: 101-shift fork, 102-upper plastic sheet, 103-lower plastic sheet, 104-upper buckle 1, 105-upper buckle 2, 106-lower buckle 1, 107-lower buckle 2, 108-upper groove, 109-lower groove, 10-through hole 1, 11-through hole 2. DETAILED DESCRIPTION

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0028] In the description of this application, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as a limitation on this application.

[0029] The features and performance of the present application are further described in detail below with reference to the embodiments.

[0030] Embodiment 1: This embodiment provides a buckle plastic sheet structure installed on the fork leg, such as Figures 1 to 3As shown, it mainly includes: an upper plastic sheet 102 and a lower plastic sheet 103 that are symmetrically arranged, and the upper plastic sheet 102 and the lower plastic sheet 103 are fixedly installed on the metal part of the fork leg of the fork 101 through a snap connection;

[0031] The upper plastic sheet 102 is provided with an upper buckle 104 and an upper buckle 2 105 on the lower end surface, and the lower plastic sheet 103 is provided with a lower buckle 106 and a lower buckle 2 107 matching the upper buckle 104 and the upper buckle 2 105 on the upper end surface.

[0032] The upper plastic-wrapped sheet 102 and the lower plastic-wrapped sheet 103 are connected into one piece by buckling with the lower buckle 106 and the lower buckle 2 107 through the upper buckle 104 and the upper buckle 2 105 respectively.

[0033] Furthermore, there are two groups of the upper plastic-covering sheets 102 and the lower plastic-covering sheets 103 , and the two groups of the upper plastic-covering sheets 102 and the lower plastic-covering sheets 103 are fixedly mounted on the two fork legs of the shift fork 101 , respectively.

[0034] Furthermore, an upper groove 108 and a lower groove 109 are respectively provided on the upper and lower surfaces of the metal part of the fork leg of the fork 101, and the contour shapes of the upper groove 108 and the lower groove 109 match the contour shapes of the upper overmolding sheet 102 and the lower overmolding sheet 103 respectively.

[0035] Furthermore, the upper groove 108 and the lower groove 109 are directly formed with a through hole 10 and a through hole 2 11 .

[0036] Furthermore, the inner diameter of the through hole 10 matches the outer diameter of the upper buckle 104 and the lower buckle 106 when they are fastened together.

[0037] Furthermore, the inner diameter of the second through hole 11 matches the outer diameter of the second upper buckle 105 and the second lower buckle 107 when they are fastened together.

[0038] Furthermore, the axial depth of the through hole 10 matches the total length of the upper buckle 104 and the lower buckle 106 after being buckled together.

[0039] Furthermore, the axial depth of the second through hole 11 matches the total length of the second upper buckle 105 and the second lower buckle 107 after being buckled together.

[0040] Embodiment 2: This embodiment provides a buckle plastic-coated sheet structure installed on the fork leg of a shift fork, which aims to improve the problems of high cost, long cycle, slow adjustment and many defects in the production of existing automobile shift fork prototypes.

[0041] This embodiment specifically includes an upper plastic wrapping sheet and a lower plastic wrapping sheet;

[0042] The plastic wrapping sheet is symmetrical up and down and has a snap-fit ​​structure. The metal part of the fork leg is wrapped by fastening the upper and lower snaps.

[0043] At the same time, the length of the buckle can be changed to adapt to fork legs of different thicknesses, and then to wrap fork legs of various thicknesses.

[0044] When used specifically:

[0045] First, align the upper plastic sheet 102 and the lower plastic sheet 103 with the upper groove 108 and the lower groove 109 of the fork legs respectively;

[0046] Then, insert the upper buckle 104 and the upper buckle 2 105 into the through hole 10 and the through hole 2 11 from above, respectively. At the same time, insert the lower buckle 106 and the lower buckle 2 107 into the through hole 10 and the through hole 2 11 from below, respectively, so that the upper buckle 104 and the upper buckle 2 105 are buckled with the lower buckle 106 and the lower buckle 2 107 respectively.

[0047] After the two sets of buckles are buckled in the two through holes respectively, the upper plastic sheet 102 and the lower plastic sheet 103 are just embedded in the upper groove 108 and the lower groove 109 of the fork leg to complete the covering of the fork leg.

[0048] Furthermore, all parts of this application that are not described in detail are the same as the existing technology or are implemented using the existing technology.

[0049] In summary:

[0050] 1. The utility model can efficiently and quickly cover the fork legs of the shift fork by cooperating with the upper plastic sheet and the lower plastic sheet. The overall structure is compact and easy to use. It can effectively speed up the assembly cycle of the shift fork and improve production efficiency.

[0051] 2. The utility model partially coats the fork legs of the shift fork with plastic, which can effectively reduce the friction between the fork legs and the gear sleeve during the operation of the gearbox, reduce the impact of the shift fork on the gear sleeve during shifting, and thus improve the gearbox noise;

[0052] 3. The utility model can stably install the upper and lower plastic-wrapped sheets in the upper and lower grooves of the fork legs by fastening the upper and lower buckles, so that the plastic-wrapped sheet structure can continue to play a role and is not easy to fall off.

[0053] The above embodiments are intended only to illustrate the design concepts and features of the present invention, and are intended to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. The scope of protection of the present invention is not limited to the above embodiments. Therefore, any equivalent changes or modifications based on the principles and design concepts disclosed in the present invention are within the scope of protection of the present invention.

Claims

1. A buckle plastic-coated sheet structure mounted on a fork leg, characterized by: It comprises an upper plastic-wrapped sheet (102) and a lower plastic-wrapped sheet (103) which are symmetrically arranged, and the upper plastic-wrapped sheet (102) and the lower plastic-wrapped sheet (103) are fixedly mounted on the metal part of the fork leg of the shift fork (101) through a snap connection; The lower end surface of the upper plastic-wrapped sheet (102) is provided with an upper snap-on 1 (104) and an upper snap-on 2 (105), and the upper end surface of the lower plastic-wrapped sheet (103) is provided with a lower snap-on 1 (106) and a lower snap-on 2 (107) that match the upper snap-on 1 (104) and the upper snap-on 2 (105); The upper plastic-wrapped sheet (102) and the lower plastic-wrapped sheet (103) are connected to form a whole by buckling with the lower buckle one (106) and the lower buckle two (107) through the upper buckle one (104) and the upper buckle two (105).

2. The buckle plastic-coated sheet structure installed on the fork leg according to claim 1, characterized in that: The upper plastic-wrapped sheets (102) and the lower plastic-wrapped sheets (103) are provided in two groups, and the two groups of upper plastic-wrapped sheets (102) and lower plastic-wrapped sheets (103) are respectively fixedly mounted on the two fork legs of the shift fork (101).

3. The buckle plastic-coated sheet structure installed on the fork leg according to claim 1, characterized in that: An upper groove (108) and a lower groove (109) are respectively provided on the upper surface and the lower surface of the metal part of the fork leg of the shift fork (101), and the contour shapes of the upper groove (108) and the lower groove (109) respectively match the contour shapes of the upper plastic-covering sheet (102) and the lower plastic-covering sheet (103).

4. The buckle plastic-coated sheet structure installed on the fork leg according to claim 3, characterized in that: The upper groove (108) and the lower groove (109) are directly provided with a through hole 1 (10) and a through hole 2 (11).

5. The buckle plastic-coated sheet structure installed on the fork leg according to claim 4, characterized in that: The inner diameter of the through hole 1 (10) matches the outer diameter of the upper buckle 1 (104) and the lower buckle 1 (106) when they are buckled together.

6. The buckle plastic-coated sheet structure installed on the fork leg according to claim 4, characterized in that: The inner diameter of the second through hole (11) matches the outer diameter of the second upper buckle (105) and the second lower buckle (107) when they are buckled together.

7. The buckle plastic-coated sheet structure installed on the fork leg of the shift fork according to claim 4, characterized in that: The axial depth of the through hole 1 (10) matches the total length of the upper buckle 1 (104) and the lower buckle 1 (106) after being buckled together.

8. The buckle plastic-coated sheet structure installed on the fork leg of the shift fork according to claim 4, characterized in that: The axial depth of the second through hole (11) matches the total length of the second upper buckle (105) and the second lower buckle (107) after being buckled together.

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