A clutch fork shaft

Abstract

The utility model belongs to the clutch transmission technical field especially relates to a kind of clutch yoke shaft, and drive motor side is provided with driver, and driver includes driving spindle and driving block, driving spindle is fixedly connected with the output end of drive motor, realizes power direct transmission, driving block is coupled with driving spindle, and driving block can be linearly moved along driving spindle, while driving block is set up relative to drive motor and is prevented from twisting, ensure that driving block only axial movement, direction accurate, driving block outer surface is equipped with yoke, and yoke is moved by the linear movement of driving block, and the combination and separation of clutch are realized.

Description

Technical Field

[0001] This utility model belongs to the field of clutch transmission technology, and in particular relates to a clutch shift fork shaft. Background Technology

[0002] The clutch shift fork shaft is a core transmission component of the clutch system in automobiles, construction machinery, and other equipment. Its function is to convert the motion of the power source into the linear displacement of the shift fork, thereby enabling the clutch to engage and disengage. Existing clutch shift fork shafts typically adopt a split structure, with the drive component and the actuator assembled through multiple sets of connecting parts. The method of fixing the shift fork to the drive mechanism is complex and costly. Utility Model Content

[0003] The purpose of this utility model is to provide a clutch shift fork shaft to address the aforementioned technical problems, thereby solving the issues raised in the background art.

[0004] In view of this, the present invention provides a clutch shift fork shaft, wherein a driver is provided on the drive motor side; The driver includes: The drive spindle is fixedly connected to the output end of the drive motor. The drive block is coupled to the drive spindle and can move linearly on the drive spindle. The drive block is anti-torsion set relative to the drive motor. A shift fork is provided on the outer surface of the drive block.

[0005] In the above technical solution, the drive block is cylindrical and is sleeved on the outer surface of the drive spindle. The drive block is connected to the drive motor to prevent torsion through a limiting component.

[0006] In the above technical solution, the drive block is further provided with an internal thread, the drive spindle is provided with an external thread, and a ball is provided between the internal thread and the external thread. The drive block is coupled with the drive spindle through the ball rolling in the internal thread and the external thread.

[0007] In the above technical solution, the limiting component further includes: A connecting ring is fixedly installed at one end of the drive motor; Limiting strips: Several limiting strips are provided around the circumference of the connecting ring; A limit ring is provided on the outer wall of the drive block near the connecting ring; The limiting groove is provided with several limiting grooves that are evenly distributed around the circumference of the limiting ring to match the limiting strip.

[0008] In the above technical solution, the shift fork further includes: Arm and body; The shift fork arms are fixedly mounted on both sides of the arm body. A shift fork shaft seat is fixedly installed at the upper end of the arm body; A fixing component is provided between the shift fork shaft seat and the drive block.

[0009] In the above technical solution, the shift fork shaft seat is further composed of a first sleeve plate, a second sleeve plate and a connecting plate. The connecting plate is fixedly connected between the ends of the first sleeve plate and the second sleeve plate, and the first sleeve plate and the second sleeve plate are sleeved on the outer wall of the drive block.

[0010] In the above technical solution, the fixing component further includes: Fixing holes are provided on the connecting plate, and the fixing holes extend into the drive block; The fixing bolt is threaded into the fixing hole; Elastic plates are fixedly connected to both sides of the connecting plate; A limiting plate is fixedly connected to the side of two elastic plates that are close to each other; Limiting openings: The two ends of the drive block are provided with limiting openings that are adapted to the limiting plate.

[0011] Furthermore, in the above technical solution, the arm body, shift fork arm, and shift fork shaft seat are all coated with an anti-rust layer.

[0012] The beneficial effects of this utility model are as follows: 1. The ball screw transmission structure converts rotary motion into linear motion, resulting in low frictional resistance, high transmission efficiency, and minimal wear. Compared with traditional sliding transmission structures, its service life is significantly extended.

[0013] 2. The shift fork and drive block adopt a dual fixing method of "bolt fixing + elastic limit", combined with the anti-torsion design of the limit component, which effectively avoids loosening, displacement or torsion during operation, and has high transmission accuracy.

[0014] 3. The drive block adopts a cylindrical structure and is sleeved on the drive spindle. The limiting and fixing components have simple structures, few parts, compact overall layout, and simple assembly steps. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of this utility model; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a schematic diagram of the shift fork structure of this utility model; The markings in the diagram are as follows: 1-Drive motor, 2-Drive spindle, 3-Driver, 4-Drive block, 5-Shift fork, 6-Internal thread, 7-External thread, 8-Ball, 9-Connecting ring, 10-Limiting strip, 11-Limiting ring, 12-Limiting groove, 13-Arm body, 14-Shift fork shaft seat, 15-Shift fork arm, 16-First socket plate, 17-Second socket plate, 18-Connecting plate, 19-Fixing hole, 20-Fixing bolt, 21-Elastic plate, 22-Limiting plate, 23-Limiting opening. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0017] Example 1: This embodiment provides a clutch shift fork shaft, including: Drive motor 1, with driver 3 installed on one side of drive motor 1; Among them, driver 3 includes: Drive spindle 2, which is fixedly connected to the output end of drive motor 1; Drive block 4 is coupled to drive spindle 2 and can move linearly on drive spindle 2. Drive block 4 is anti-torsion set relative to drive motor 1. The fork 5 is provided on the outer surface of the drive block 4.

[0018] As can be seen in this embodiment, a driver 3 is provided on one side of the drive motor 1. The driver 3 includes a drive spindle 2 and a drive block 4. The drive spindle 2 is fixedly connected to the output end of the drive motor 1 to realize direct power transmission. The drive block 4 is coupled to the drive spindle 2 and can move linearly along the drive spindle 2. At the same time, the drive block 4 is anti-torsion set relative to the drive motor 1 to ensure that the drive block 4 only moves axially and in a precise direction. A shift fork 5 is mounted on the outer surface of the drive block 4. The linear movement of the drive block 4 drives the shift fork 5 to move, thereby realizing the engagement and disengagement of the clutch.

[0019] Example 2: This embodiment provides a clutch shift fork shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0020] The drive block 4 is cylindrical and is sleeved on the outer surface of the drive spindle 2. The drive block 4 is connected to the drive motor to prevent torsion through a limiting component.

[0021] As can be seen from this embodiment, the drive block 4 is made of wear-resistant cast iron or engineering plastic (PEEK reinforced material). The drive block 4 is preferably cylindrical and is sleeved on the outer surface of the drive spindle 2. The drive block 4 forms an anti-torsion connection with the drive motor 1 through the limiting component. The structure is compact and easy to assemble.

[0022] Example 3: This embodiment provides a clutch shift fork shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0023] The drive block 4 is provided with an internal thread 6, and the drive spindle 2 is provided with an external thread 7. A ball 8 is provided between the internal thread 6 and the external thread 7. The drive block 4 is coupled with the drive spindle 2 through the ball 8 rolling in the internal thread 6 and the external thread 7.

[0024] As can be seen in this embodiment, the inner wall of the drive block 4 is provided with an internal thread 6, and the drive spindle 2 is provided with an external thread 7. The pitch and tooth profile of the internal thread 6 and the external thread 7 are completely consistent, and the surface of the internal thread is nitrided to improve wear resistance. A ball 8 is provided between the internal thread 6 and the external thread 7. The ball is evenly distributed in the spiral raceway formed by the internal thread 6 and the external thread 7. The drive block 4 achieves coupling transmission with the drive spindle 2 through the rolling of the ball 8 in the internal thread 6 and the external thread 7. In order to prevent the ball 8 from falling off or getting stuck, a ball circulation channel (not shown) is opened on the inner wall of the drive block 4. The channel cross-section is semi-circular, and the channel diameter is slightly larger than the ball diameter to ensure that the ball 8 can circulate smoothly. This structure adopts the ball screw transmission principle to convert the rotational motion of the drive spindle 2 into the linear motion of the drive block 4. The frictional resistance is small, the transmission efficiency is high, and the wear is small, effectively extending the service life.

[0025] Example 4: This embodiment provides a clutch shift fork shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0026] The limit components include: Connecting ring 9, one end of drive motor 1 is fixedly provided with connecting ring 9; Limiting strips 10 are provided around the circumference of the connecting ring 9; Limiting ring 11: A limiting ring 11 is provided on the outer wall of the drive block 4 near the connecting ring 9. The limiting groove 12 and the limiting ring 11 are evenly provided with several limiting grooves 12 that are adapted to the limiting strip 10.

[0027] As can be seen in this embodiment, the connecting ring 9 is fixedly set at one end of the drive motor 1 as the mounting base of the limiting component. Several limiting strips 10 are evenly arranged along the circumference of the connecting ring 9 to form an anti-torsion guide structure. The limiting ring 11 is fixedly set on the outer wall of the drive block 4 near the connecting ring 9 and moves synchronously with the drive block 4. Several limiting grooves 12 are evenly opened on the circumference of the limiting ring 11 and are adapted to the limiting strips 10 one by one. The limiting strips 10 are embedded in the limiting grooves 12 to restrict the rotational movement of the drive block 4 and only allow it to move linearly along the axial direction.

[0028] Example 5: This embodiment provides a clutch shift fork shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0029] Shift fork 5 includes: Arm 13; The shift fork arm 15 is fixedly mounted on both sides of the arm body 13. A shift fork shaft seat 14 is fixedly installed on the upper end of the arm body 13; A fixing component is provided between the shift fork shaft seat 14 and the drive block 4.

[0030] As can be seen from this embodiment, the arm body 13 is the main structure of the shift fork 5, which is used to transmit driving force. The shift fork arms 15 are symmetrically fixed on both sides of the arm body 13 for cooperating with the clutch actuator. The shift fork shaft seat 14 is fixedly installed on the upper end of the arm body 13 for connecting the shift fork 5 and the drive block 4. The fixing component is installed between the shift fork shaft seat 14 and the drive block 4 to ensure a firm and reliable connection.

[0031] Example 6: This embodiment provides a clutch shift fork shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0032] The shift fork shaft seat 14 is composed of a first sleeve plate 16, a second sleeve plate 17 and a connecting plate 18. The connecting plate 18 is fixedly connected between the ends of the first sleeve plate 16 and the second sleeve plate 17. The first sleeve plate 16 and the second sleeve plate 17 are sleeved on the outer wall of the drive block 4.

[0033] As can be seen from this embodiment, the shift fork shaft seat 14 is composed of a first sleeve plate 16, a second sleeve plate 17 and a connecting plate 18. The connecting plate 18 is fixedly connected between the ends of the first sleeve plate 16 and the second sleeve plate 17 to form a U-shaped structure. The first sleeve plate 16 and the second sleeve plate 17 are symmetrically sleeved on the outer wall of the drive block 4, with high fit and good connection stability.

[0034] Example 7: This embodiment provides a clutch shift fork shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0035] The fixed components include: Fixing hole 19: A fixing hole 19 is provided on the connecting plate 18, and the fixing hole 19 extends into the drive block 4; A fixing bolt 20 is threaded onto the fixing hole 19; Elastic plate 21, elastic plate 21 is fixedly connected to both sides of connecting plate 18; Limiting plate 22, the side of two elastic plates 21 that are close to each other is fixedly connected to the limiting plate 22; Limiting opening 23: The driving block 4 has limiting openings 23 at both ends that are adapted to the limiting plate 22.

[0036] As can be seen in this embodiment, the fixing hole 19 is opened on the connecting plate 18 and extends into the drive block 4, providing an installation channel for the fixing bolt 20. The fixing bolt 20 is threadedly connected to the fixing hole 19. An anti-loosening washer is provided between the fixing bolt 20 and the connecting plate 18. The anti-loosening washer is a spring washer. The initial fixing of the shift fork shaft seat 14 and the drive block 4 is achieved by tightening the fixing bolt 20. The elastic plate 21 is fixedly connected to both sides of the connecting plate 18 and has a certain elastic deformation capability. The limiting plate 22 is fixedly set on the side of the two elastic plates 21 that are close to each other. The deformation of the elastic plate 21 drives the limiting plate 22 to move synchronously. The limiting opening 23 is opened at both ends of the drive block 4 and is adapted to the limiting plate 22. During assembly, the limiting plate 22 is embedded in the limiting opening 23 under the elastic force of the elastic plate 21, forming a secondary limiting fixation. This fixing component, through the double fixing structure of "bolt fixing + elastic limiting", ensures that the shift fork 5 and the drive block 4 are firmly connected, avoids loosening or displacement during high-frequency operation, and improves transmission accuracy and structural reliability.

[0037] Example 8: This embodiment provides a clutch shift fork shaft, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] The outer surfaces of the arm body 13, the shift fork arm 15, and the shift fork shaft seat 14 are all coated with an anti-rust layer.

[0039] As can be seen from this embodiment, in order to improve the corrosion resistance and service life of the shift fork 5, the outer surfaces of the arm body 13, the shift fork arm 15 and the shift fork shaft seat 14 are all coated with an anti-rust layer. The anti-rust layer can be made of materials such as zinc plating, chrome plating or anti-corrosion coating, which can effectively resist the corrosion of the external environment.

[0040] Working principle: After the drive motor 1 starts, its output end drives the drive spindle 2 to rotate synchronously. Since the drive block 4 forms an anti-torsion constraint with the drive motor 1 through the limiting component, the rotational motion of the drive spindle 2 is converted into linear motion of the drive block 4 along the axial direction of the drive spindle 2 through the rolling transmission of the balls 8 between the internal thread 6 and the external thread 7. The drive block 4 drives the shift fork 5 fixedly connected to it to move synchronously and linearly. The shift fork 5 drives the clutch actuator through the shift fork arm 15, thereby realizing the engagement and disengagement of the clutch. The embodiments of this application have been described above with reference to the accompanying drawings. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many forms under the guidance of this application without departing from the spirit and scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A clutch shift fork shaft, characterized in that, include: A drive motor (1) is provided with a driver (3) on one side of the drive motor (1); The driver (3) includes: Drive spindle (2), which is fixedly connected to the output end of drive motor (1); The drive block (4) is coupled to the drive spindle (2) and can move linearly on the drive spindle (2). The drive block (4) is anti-torsion set relative to the drive motor (1). The drive block (4) has a fork (5) on its outer surface. The drive block (4) is provided with an internal thread (6), the drive spindle (2) is provided with an external thread (7), and a ball (8) is provided between the internal thread (6) and the external thread (7). The drive block (4) is coupled to the drive spindle (2) through the ball (8) rolling in the internal thread (6) and the external thread (7).

2. A clutch shift fork shaft according to claim 1, characterized in that, The drive block (4) is cylindrical and is sleeved on the outer surface of the drive spindle (2). The drive block (4) is connected to the drive motor to prevent torsion through a limiting component.

3. A clutch shift fork shaft according to claim 2, characterized in that, The limiting component includes: Connecting ring (9), one end of the drive motor (1) is fixedly provided with a connecting ring (9); Limiting strips (10), a plurality of limiting strips (10) are provided on the circumference of the connecting ring (9); Limiting ring (11): A limiting ring (11) is provided on the outer wall of one end of the drive block (4) near the connecting ring (9). Limiting groove (12): The limiting ring (11) has several limiting grooves (12) that are adapted to the limiting strip (10) evenly distributed around its circumference.

4. A clutch shift fork shaft according to claim 1, characterized in that, The shift fork (5) includes: Arm body (13); The fork arm (15) is fixedly disposed on both sides of the arm body (13); The upper end of the arm body (13) is fixedly provided with a fork shaft seat (14). A fixing component is provided between the shift fork shaft seat (14) and the drive block (4).

5. A clutch shift fork shaft according to claim 4, characterized in that, The shift fork shaft seat (14) is composed of a first socket plate (16), a second socket plate (17) and a connecting plate (18). The connecting plate (18) is fixedly connected between the ends of the first socket plate (16) and the second socket plate (17). The first socket plate (16) and the second socket plate (17) are sleeved on the outer wall of the drive block (4).

6. A clutch shift fork shaft according to claim 5, characterized in that, The fixing component includes: Fixing hole (19): The connecting plate (18) is provided with fixing hole (19), which extends into the drive block (4); A fixing bolt (20) is threaded onto the fixing hole (19); Elastic plate (21), elastic plate (21) is fixedly connected to both sides of the connecting plate (18); Limiting plate (22), the two elastic plates (21) are fixedly connected to each other on the side that is close to each other; Limiting openings (23): The driving block (4) has limiting openings (23) at both ends that are adapted to the limiting plate (22).

7. A clutch shift fork shaft according to claim 4, characterized in that, The outer surfaces of the arm body (13), the fork arm (15), and the fork shaft seat (14) are all coated with an anti-rust layer.

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