Adjustable multi-section limiting shifting fork

Abstract

The utility model relates to the technical field of gear shifting forks, and discloses an adjustable multi-section limiting gear shifting fork which comprises a gearbox, a transmission mechanism is arranged on the right side of the gearbox, a rotating mechanism is arranged on the inner side of the gearbox, a gear shifting fork is arranged on the periphery of the rotating mechanism, and the transmission mechanism comprises a vertical plate. The vertical plate is fixedly connected to the top of the right side of the gearbox, the left side of the vertical plate is fixedly connected with a first motor, the right side of the first motor is fixedly connected with a rotating shaft, the periphery of the rotating shaft is fixedly connected with first chain wheels, the periphery of the first chain wheels is meshed with a chain, and the inner bottom of the chain is meshed with a second chain wheel. The first motor drives the rotating shaft to rotate, the rotating shaft drives the chain to rotate through the first chain wheel, the chain drives the threaded rod to rotate through the second chain wheel, the threaded rod can drive the gear shifting fork to move stably, and the gear shifting fork can stably slide into the change gear.

Description

Technical Field

[0001] This utility model relates to the field of shift fork technology, specifically an adjustable multi-stage limit shift fork. Background Technology

[0002] The shift fork is an important component in a car's transmission, mainly used to control the gear shifting operation. The shift fork receives power from the shift lever and pushes the gears in the transmission to move on the shift fork shaft, causing the gears to disengage from the original gear pair and establish a new gear pair engagement, thereby realizing the switching between different gears.

[0003] In existing transmissions, the shift fork is moved by the shift lever. However, when the shift lever moves the shift fork back and forth, it is unstable, which makes the shift fork prone to jamming, making the vehicle difficult to drive and causing considerable trouble. Therefore, an improvement is needed. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable multi-stage limit shift fork to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable multi-stage limit shift fork, including a gearbox, a transmission mechanism is provided on the right side of the gearbox, a rotating mechanism is provided inside the gearbox, and a shift fork is provided around the rotating mechanism.

[0006] The transmission mechanism includes a vertical plate, which is fixedly connected to the top right side of the gearbox. A first motor is fixedly connected to the left side of the vertical plate, and a rotating shaft is fixedly connected to the right side of the first motor. A first sprocket is fixedly connected to the periphery of the rotating shaft. A chain is engaged around the periphery of the first sprocket, and a second sprocket is engaged at the bottom of the chain.

[0007] Preferably, there are three first sprockets, and the three first sprockets are fixedly connected to the periphery of the rotating shaft. When the rotating shaft rotates, it can drive the three first sprockets to rotate simultaneously.

[0008] Preferably, the rotating mechanism includes a threaded rod rotatably connected to the inside of the gearbox, threadedly connected to the inside of the shift fork, a fixed rod fixedly connected inside the threaded rod, a second spring sleeved around the fixed rod, a sliding plate slidably connected around the fixed rod, a linkage plate fixedly connected to the right side of the sliding plate, a push rod fixedly connected to the left side of the sliding plate, a pressing rod provided on the left side of the push rod, a fixed plate fixedly connected around the pressing rod, a fixed frame slidably connected around the pressing rod, the fixed frame fixedly connected inside the threaded rod, the pressing rod slidably connected to the inside of the threaded rod, a limit plate fixedly connected to the outer side of the pressing rod, a first spring sleeved around the pressing rod, a fixed plate fixedly connected to the right side of the gearbox, an electric telescopic rod fixedly connected to the front of the fixed plate, and a pressing plate fixedly connected to the front of the electric telescopic rod.

[0009] Preferably, the right side of the second spring is fixedly connected to the left side of the slide plate, and the left side of the second spring is fixedly connected to the left side of the threaded rod. When the push rod does not press the extrusion rod, the elastic force of the second spring causes the extrusion rod to move away from the outside of the second sprocket, so that when the second sprocket rotates, it cannot drive the threaded rod to grab you.

[0010] Preferably, the outer side of the first spring is fixedly connected to the inner side of the fixed frame, and the inner side of the first spring is fixedly connected to the outer side of the fixed plate. When the extrusion plate moves away from the linkage plate, the elastic force of the first spring enables the slide plate to drive the push rod to return to its original position.

[0011] Preferably, the threaded rod has a circular groove on its outer periphery that corresponds to the rotation trajectory of the second sprocket, and the second sprocket is rotatably connected inside the circular groove. Through the circular groove, the second sprocket can rotate freely around the threaded rod.

[0012] Preferably, the extrusion plate is disposed on the right side of the linkage plate, and the left side of the extrusion plate is in close contact with the right side of the linkage plate, so that the linkage plate can be extruded by the extrusion plate.

[0013] Compared with the prior art, this utility model provides an adjustable multi-stage limit shift fork, which has the following advantages:

[0014] This adjustable multi-stage limit shift fork, through its transmission mechanism, when it needs to drive the threaded rod to rotate, uses a first motor, vertical plate, chain, first sprocket, rotating shaft and second sprocket to work together to enable the threaded rod to drive the shift fork to move smoothly, so that the shift fork can smoothly slide into the gearbox.

[0015] This adjustable multi-stage limit shift fork, through a set rotation mechanism, uses a threaded rod, a fixed plate, a first spring, a pressing rod, a limit plate, a fixed frame, a push rod, a fixed rod, a second spring, a sliding plate, a linkage plate, a fixed plate, an electric telescopic rod, and a pressing plate to make the second sprocket rotate, which can drive the threaded rod to rotate, so that the threaded rod can drive the shift fork to move, making the shift fork move more stably. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front view structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the transmission mechanism.

[0019] Figure 3 This is a schematic diagram of the structure of the second sprocket and the threaded rod;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of a threaded rod;

[0021] Figure 5 This is a schematic diagram of the structure of the fixed plate, the electric telescopic rod, and the extrusion plate.

[0022] In the diagram: 1. Gearbox; 2. Transmission mechanism; 21. First motor; 22. Vertical plate; 23. Chain; 24. First sprocket; 25. Shaft; 26. Second sprocket; 3. Rotating mechanism; 31. Threaded rod; 32. Fixed plate; 33. First spring; 34. Pressing rod; 35. Limiting plate; 36. Fixed frame; 37. Push rod; 38. Fixed rod; 39. Second spring; 301. Slide plate; 302. Linkage plate; 303. Fixed plate; 304. Electric telescopic rod; 305. Pressing plate; 4. Shift fork. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] This utility model provides the following technical solution:

[0026] Example 1

[0027] Please see Figure 1-5 This utility model provides a technical solution: an adjustable multi-segment limit shift fork, including a gearbox 1, a transmission mechanism 2 is provided on the right side of the gearbox 1, a rotating mechanism 3 is provided inside the gearbox 1, and a shift fork 4 is provided around the rotating mechanism 3.

[0028] The transmission mechanism 2 includes a vertical plate 22, which is fixedly connected to the top right side of the gearbox 1. A first motor 21 is fixedly connected to the left side of the vertical plate 22. A rotating shaft 25 is fixedly connected to the right side of the first motor 21. A first sprocket 24 is fixedly connected to the outer periphery of the rotating shaft 25. A chain 23 is meshed around the outer periphery of the first sprocket 24. A second sprocket 26 is meshed at the bottom of the inner side of the chain 23.

[0029] Furthermore, there are three first sprockets 24, which are fixedly connected to the periphery of the rotating shaft 25. When the rotating shaft 25 rotates, it can drive the three first sprockets 24 to rotate simultaneously.

[0030] Example 2

[0031] Please see Figure 1-5Furthermore, based on Embodiment 1, the rotating mechanism 3 further includes a threaded rod 31, which is rotatably connected to the inside of the gearbox 1 and threadedly connected to the inside of the shift fork 4. A fixed rod 38 is fixedly connected inside the threaded rod 31, and a second spring 39 is sleeved around the fixed rod 38. A slide plate 301 is slidably connected around the fixed rod 38. A linkage plate 302 is fixedly connected to the right side of the slide plate 301, and a push rod 37 is fixedly connected to the left side of the slide plate 301. A pressing rod 34 is provided on the left side of the push rod 37, and a fixed plate 32 is fixedly connected around the pressing rod 34. A fixed frame 36 is slidably connected around the pressing rod 34, and the fixed frame 36 is fixedly connected inside the threaded rod 31. The pressing rod 34 is slidably connected to the inside of the threaded rod 31, and a limit plate 35 is fixedly connected to the outer side of the pressing rod 34. A first spring 33 is sleeved around the pressing rod 34. A fixed plate 303 is fixedly connected to the right side of the gearbox 1, and an electric telescopic rod 304 is fixedly connected to the front of the fixed plate 303. A pressing plate 305 is fixedly connected to the front of the electric telescopic rod 304.

[0032] Furthermore, the right side of the second spring 39 is fixedly connected to the left side of the slide plate 301, and the left side of the second spring 39 is fixedly connected to the inner left side of the threaded rod 31. When the push rod 37 does not press the extrusion rod 34, the elastic force of the second spring 39 causes the extrusion rod 34 to move away from the outside of the second sprocket 26, so that when the second sprocket 26 rotates, it cannot drive the threaded rod 31 to rotate.

[0033] Furthermore, the outer side of the first spring 33 is fixedly connected to the inner side of the fixed frame 36, and the inner side of the first spring 33 is fixedly connected to the outer side of the fixed plate 32. When the pressing plate 305 moves away from the linkage plate 302, the elastic force of the first spring 33 enables the slide plate 301 to drive the push rod 37 to return to its original position.

[0034] Furthermore, a circular groove corresponding to the rotation trajectory of the second sprocket 26 is provided on the outer periphery of the threaded rod 31, and the second sprocket 26 is rotatably connected to the inside of the circular groove. Through the circular groove, the second sprocket 26 can rotate freely on the outer periphery of the threaded rod 31.

[0035] Furthermore, the extrusion plate 305 is disposed on the right side of the linkage plate 302, and the left side of the extrusion plate 305 is in contact with the right side of the linkage plate 302, so that the linkage plate 302 can be extruded by the extrusion plate 305.

[0036] In actual operation, when this device is used, if it is necessary to drive the threaded rod 31 to rotate, the first motor 21 drives the rotating shaft 25 to rotate, which in turn drives the chain 23 to rotate via the first sprocket 24. The chain 23 then drives the second sprocket 26 to rotate freely around the threaded rod 31. When one of the three threaded rods 31 rotates, the electric telescopic rod 304 drives the linkage plate 302 to move, allowing the linkage plate 302 to press against itself. This causes the linkage plate 302 to drive the sliding plate 301 to move against the push rod 37, which in turn presses against the pressing rod 34. The outer side of the pressing rod 34 can then be inserted into the inner side of the second sprocket 26. When the second sprocket 26 rotates, it drives the threaded rod 31 to rotate, which in turn drives the shift fork 4 to move, making the shift fork 4 move more stably.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. An adjustable multi-stage limit shift fork, comprising a gearbox (1), characterized in that: A transmission mechanism (2) is provided on the right side of the gearbox (1), a rotating mechanism (3) is provided inside the gearbox (1), and a shift fork (4) is provided around the rotating mechanism (3). The transmission mechanism (2) includes a vertical plate (22), which is fixedly connected to the top right side of the gearbox (1). A first motor (21) is fixedly connected to the left side of the vertical plate (22), and a rotating shaft (25) is fixedly connected to the right side of the first motor (21). A first sprocket (24) is fixedly connected to the periphery of the rotating shaft (25). A chain (23) is meshed around the periphery of the first sprocket (24), and a second sprocket (26) is meshed at the bottom of the inner side of the chain (23).

2. The adjustable multi-stage limit shift fork according to claim 1, characterized in that: There are three first sprockets (24), and the three first sprockets (24) are fixedly connected to the periphery of the rotating shaft (25).

3. The adjustable multi-stage limit shift fork according to claim 1, characterized in that: The rotating mechanism (3) includes a threaded rod (31), which is rotatably connected to the inside of the gearbox (1). The threaded rod (31) is threadedly connected to the inside of the shift fork (4). A fixed rod (38) is fixedly connected inside the threaded rod (31). A second spring (39) is sleeved around the fixed rod (38). A sliding plate (301) is slidably connected around the fixed rod (38). A linkage plate (302) is fixedly connected to the right side of the sliding plate (301). A push rod (37) is fixedly connected to the left side of the sliding plate (301). A pressing rod (34) is provided on the left side of the push rod (37). A fixed plate (32) is fixedly connected to the periphery of the extrusion rod (34), and a fixed frame (36) is slidably connected to the periphery of the extrusion rod (34). The fixed frame (36) is fixedly connected to the inside of the threaded rod (31), and the extrusion rod (34) is slidably connected to the inside of the threaded rod (31). A limit plate (35) is fixedly connected to the outer periphery of the extrusion rod (34). A first spring (33) is sleeved around the periphery of the extrusion rod (34). A fixed plate (303) is fixedly connected to the right side of the gearbox (1). An electric telescopic rod (304) is fixedly connected to the front of the fixed plate (303), and an extrusion plate (305) is fixedly connected to the front of the electric telescopic rod (304).

4. An adjustable multi-stage limit shift fork according to claim 3, characterized in that: The right side of the second spring (39) is fixedly connected to the left side of the slide plate (301), and the left side of the second spring (39) is fixedly connected to the left side of the threaded rod (31).

5. An adjustable multi-stage limit shift fork according to claim 3, characterized in that: The outer side of the first spring (33) is fixedly connected to the inner side of the fixing frame (36), and the inner side of the first spring (33) is fixedly connected to the outer side of the fixing plate (32).

6. An adjustable multi-stage limit shift fork according to claim 3, characterized in that: The threaded rod (31) has a circular groove on its periphery that corresponds to the rotation trajectory of the second sprocket (26), and the second sprocket (26) is rotatably connected to the inside of the circular groove.

7. An adjustable multi-stage limit shift fork according to claim 3, characterized in that: The extrusion plate (305) is located on the right side of the linkage plate (302), and the left side of the extrusion plate (305) is in contact with the right side of the linkage plate (302).

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