Gearbox cylinder yoke shaft

Abstract

The utility model discloses a gearbox air cylinder fork axle, include: fork axle, the one end of fork axle is connected in gearbox air cylinder slidingly, fork groove frame is set in the other end of fork axle, cross -joint block is fixed at the lower edge of fork axle side surface, and the upper end surface of fork groove frame is provided with the cross -joint groove of cross -joint block interlock, prevent the mechanism of falling off, prevent the mechanism of falling off and be connected in the inside of fork groove frame rotation, and prevent the mechanism of falling off for limiting fork axle in the activity of fork groove frame, the utility model discloses the cross -joint block and cross -joint groove of setting, when installing, the cross -joint block of fork axle side surface lower edge and the cross -joint groove of fork groove frame upper end surface interlock, can realize the positioning connection of fork axle and fork groove frame initially, and cross -insertion mode can prevent the combination of fork axle and fork groove frame and appear radial torsion.

Description

Technical Field

[0001] This utility model relates to the field of shift fork shaft technology, specifically a shift fork shaft for a gearbox cylinder. Background Technology

[0002] In automotive transmission systems, the gearbox is a core component whose performance directly affects the vehicle's power transmission efficiency and driving experience. The gearbox cylinder shift fork shaft, as a key actuator for achieving gear shifting, undertakes the important function of accurately transmitting shifting force to relevant components within the gearbox to complete gear switching. Currently, most transmission cylinder shift fork shafts and shift fork holders use a single bolt fastening connection. Under long-term vibration and alternating loads, the bolts are prone to loosening, leading to decreased connection stability between the shift fork shaft and the shift fork holder, which in turn affects the accuracy and reliability of gear shifting. Furthermore, bolt connections cannot effectively restrict the axial movement of the shift fork shaft. During gear shifting, the shift fork shaft may experience axial misalignment and slippage due to uneven force, which not only accelerates the wear of components but may also cause incomplete gear shifting, leading to vehicle malfunctions. Therefore, a new transmission cylinder shift fork shaft is needed to solve the problems existing in the current technology. Utility Model Content

[0003] The purpose of this invention is to provide a gearbox cylinder shift fork shaft to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a gearbox cylinder shift fork shaft, comprising: A shift fork shaft, one end of which is slidably connected to a gearbox cylinder; A shift fork slot bracket, wherein the shift fork slot bracket is sleeved on the other end of the shift fork shaft; A cross-shaped docking block is fixed at the lower edge of the side surface of the shift fork shaft, and a cross-shaped docking groove is provided on the upper end surface of the shift fork slot frame to engage with the cross-shaped docking block. An anti-detachment mechanism is rotatably connected inside the shift fork slot frame, and the anti-detachment mechanism is used to restrict the movement of the shift fork shaft in the shift fork slot frame.

[0005] Preferably, a torsion groove is provided on the inner wall of the cross-shaped docking groove, and the torsion groove is connected to the cross-shaped docking groove.

[0006] Preferably, a through hole is provided at the center of the inner bottom wall of the shift fork slot, and a fastening bolt is threaded between the shift fork shaft and the shift fork slot.

[0007] Preferably, a locking screw hole is provided on one end face of the shift fork shaft, and one end of the fastening bolt passes through the shift fork slot and is threaded into the locking screw hole of the shift fork shaft.

[0008] Preferably, the anti-detachment mechanism includes a torsion frame, and the inner bottom wall of the shift fork slot frame is provided with an adjustment port, which is connected to the cross-shaped docking slot, and the torsion frame is rotatably connected in the adjustment port.

[0009] Preferably, a limiting block is fixed at the upper end of the torsion frame, the limiting block is rotatably connected in the torsion groove, and a limiting groove for accommodating the limiting block is provided on the side surface of the cross-shaped docking block.

[0010] Preferably, the lower end face of the torsion frame is provided with a docking hole, and the docking hole and the through hole are arranged concentrically.

[0011] Preferably, the bottom center of the shift fork slot is provided with a receiving groove, and the torsion frame is rotatably connected in the receiving groove.

[0012] This utility model provides a gearbox cylinder shift fork shaft, which has the following advantages compared with the prior art: By using the cross-shaped mating block and cross-shaped mating groove, when the shift fork shaft and shift fork slot frame are installed, the cross-shaped mating block on the lower edge of the side surface of the shift fork shaft engages with the cross-shaped mating groove on the upper end surface of the shift fork slot frame, which can initially achieve the positioning connection between the shift fork shaft and the shift fork slot frame. Moreover, the cross-shaped mating method can prevent radial torsion in the combination of the shift fork shaft and the shift fork slot frame.

[0013] By using a cross-shaped mating block, a cross-shaped mating groove, and an anti-detachment mechanism, the limiting block can be engaged with the limiting groove to further restrict the axial movement of the shift fork shaft within the shift fork slot frame while limiting radial torsion. This effectively prevents the shift fork shaft from accidentally detaching from the shift fork slot frame and helps prevent loosening of the combination of the shift fork shaft and the shift fork slot frame when tightening the fastening bolts. Furthermore, the locking effect of the limiting block on the shift fork shaft and the shift fork slot frame also enhances the locking effect of the fastening bolts. When the fastening bolts become loose during use, the locking effect of the limiting block on the shift fork shaft and the shift fork slot frame can alleviate the situation of increased thread loosening. Attached Figure Description

[0014] Figure 1 This is a three-dimensional view of the overall structure of this utility model; Figure 2 This is a perspective view of the cross-shaped joint block structure of this utility model; Figure 3 This is a perspective view of the cross-shaped docking groove structure of this utility model; Figure 4 This is a perspective view of the torsion groove structure of this utility model; Figure 5 This is a perspective view of the torsion frame structure of this utility model; Figure 6 This is a perspective view of the through hole structure of this utility model; Figure 7 This is a perspective view of the locking screw hole structure of this utility model.

[0015] In the diagram: 1. Shift fork shaft; 2. Shift fork slot bracket; 3. Fastening bolt; 4. Cross joint block; 5. Anti-detachment mechanism; 6. Torsion frame; 7. Limiting block; 8. Torsion groove; 9. Limiting groove; 10. Adjustment port; 11. Cross joint groove; 12. Joint hole; 13. Through hole; 14. Receiving groove; 15. Locking screw hole. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1-7 This utility model provides a gearbox cylinder shift fork shaft, comprising: Shift fork shaft 1, one end of which is slidably connected to the gearbox cylinder; Shift fork slot 2, which is sleeved on the other end of shift fork shaft 1; The cross-shaped docking block 4 is fixed at the lower edge of the side surface of the shift fork shaft 1. The upper end surface of the shift fork slot frame 2 is provided with a cross-shaped docking groove 11 that engages with the cross-shaped docking block 4. Among them, the cross-shaped mating block 4 on the lower edge of the side surface of the shift fork shaft 1 engages with the cross-shaped mating groove 11 on the upper end surface of the shift fork slot 2, which can initially realize the positioning connection between the shift fork shaft 1 and the shift fork slot 2.

[0018] Anti-detachment mechanism 5 is rotatably connected inside the shift fork slot 2. Anti-detachment mechanism 5 is used to restrict the movement of shift fork shaft 1 in shift fork slot 2. Anti-detachment mechanism 5 includes torsion frame 6. The inner bottom wall of shift fork slot 2 is provided with adjustment port 10. Adjustment port 10 is connected to cross docking groove 11. Torsion frame 6 is rotatably connected in adjustment port 10. Torsion groove 8 is provided on the inner wall of cross docking groove 11. Torsion groove 8 is connected to cross docking groove 11. Limiting block 7 is fixed at the upper end of torsion frame 6. Limiting block 7 is rotatably connected in torsion groove 8. Limiting groove 9 for accommodating limiting block 7 is provided on the side surface of cross docking block 4. When the limiting block 7 rotates into the limiting groove 9 on the side surface of the cross-shaped mating block 4, the limiting block 7 is engaged in the limiting groove 9. This method of engaging the limiting block 7 into the limiting groove 9 can further restrict the axial movement of the shift fork shaft 1 in the shift fork slot 2 under the condition of radial torsion restriction. This effectively prevents the shift fork shaft 1 from accidentally disengaging from the shift fork slot 2. It also helps to prevent the combination of the shift fork shaft 1 and the shift fork slot 2 from loosening when the fastening bolt 3 is tightened. Furthermore, the engagement effect of the limiting block 7 on the shift fork shaft 1 and the shift fork slot 2 also enhances the locking effect of the fastening bolt 3. When the fastening bolt 3 becomes loose during use, the engagement effect of the limiting block 7 can alleviate the situation of increased thread loosening of the shift fork shaft 1 and the shift fork slot 2.

[0019] It is worth noting that a through hole 13 is provided at the center of the inner bottom wall of the shift fork slot 2, and a fastening bolt 3 is threaded between the shift fork shaft 1 and the shift fork slot 2. A locking screw hole 15 is provided on one end face of the shift fork shaft 1, and one end of the fastening bolt 3 passes through the shift fork slot 2 and is threaded into the locking screw hole 15 of the shift fork shaft 1. The fastening bolt 3 is passed through the through hole 13 at the bottom of the shift fork slot 2 and screwed into the locking screw hole 15 on the lower end face of the shift fork shaft 1 to completely lock the connection between the shift fork shaft 1 and the shift fork slot 2.

[0020] It is worth noting that the lower end face of the torsion frame 6 is provided with a docking hole 12, which is co-centered with the through hole 13. The bottom center of the shift fork slot 2 is provided with a receiving groove 14, and the torsion frame 6 is rotatably connected in the receiving groove 14.

[0021] The purpose of this solution is to provide a gearbox cylinder shift fork shaft with the following working process: During the gear shifting operation of the automobile gearbox, the driver operates the shift lever, which transmits force to one end of the shift fork shaft 1, causing the shift fork shaft 1 to move linearly along its axis. Since the shift fork slot 2 is tightened and fixed to the shift fork shaft 1 by the fastening bolt 3, the shift fork slot 2 will move synchronously with the shift fork shaft 1, thereby pushing the "sliding gear" or "synchronizer engagement sleeve" in the gearbox to realize the meshing of the target gear or neutral shift.

[0022] When installing the shift fork shaft 1 and the shift fork slot 2, the shift fork slot 2 is fitted onto one end of the shift fork shaft 1. At this time, the cross-shaped mating block 4 on the lower edge of the side surface of the shift fork shaft 1 engages with the cross-shaped mating groove 11 on the upper end surface of the shift fork slot 2, which can initially achieve the positioning connection between the shift fork shaft 1 and the shift fork slot 2. Subsequently, the fastening bolt 3 is passed through the through hole 13 at the bottom of the shift fork slot 2 and screwed into the locking screw hole 15 on the lower end surface of the shift fork shaft 1 to completely lock the insertion of the shift fork shaft 1 and the shift fork slot 2.

[0023] Before the fastening bolt 3 locks the fork shaft 1 and the fork slot 2 into place, rotate the anti-disengagement mechanism 5 located inside the fork slot 2. When the torsion frame 6 in the anti-disengagement mechanism 5 rotates, it drives the upper limit block 7 to rotate in the torsion groove 8 on the inner wall of the cross-shaped mating groove 11. When the limit block 7 rotates into the limit groove 9 on the side surface of the cross-shaped mating block 4, the limit block 7 is engaged in the limit groove 9. This method of engaging the limit block 7 in the limit groove 9 can further restrict the fork shaft under radial torsion restriction. The axial movement of the shift fork shaft 1 in the shift fork slot 2 effectively prevents the shift fork shaft 1 from accidentally disengaging from the shift fork slot 2. It also helps to prevent the combination of the shift fork shaft 1 and the shift fork slot 2 from loosening when the fastening bolt 3 is tightened. Furthermore, the locking effect of the shift fork shaft 1 and the shift fork slot 2 achieved by the limiting block 7 also enhances the locking effect of the fastening bolt 3. When the fastening bolt 3 becomes loose during use, the shift fork shaft 1 and the shift fork slot 2 can alleviate the situation of increased thread loosening under the locking effect of the limiting block 7.

[0024] During the operation of the gearbox, the cylinder drives the shift fork shaft 1 to move. The shift fork shaft 1, through close cooperation with the shift fork slot 2, accurately transmits power, realizes precise gear shifting, and provides a reliable guarantee for the smooth operation of the vehicle.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Although embodiments of this utility model have been shown and described, this does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model. Regarding the embodiments of this utility model, those skilled in the art will understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gearbox cylinder shift fork shaft, characterized in that, include: Shift fork shaft (1), one end of which is slidably connected to the gearbox cylinder; The shift fork slot (2) is sleeved on the other end of the shift fork shaft (1); A cross-shaped docking block (4) is fixed at the lower edge of the side surface of the shift fork shaft (1). The upper end surface of the shift fork slot frame (2) is provided with a cross-shaped docking groove (11) that engages with the cross-shaped docking block (4). Anti-detachment mechanism (5) is rotatably connected inside the shift fork slot (2) and is used to restrict the movement of the shift fork shaft (1) in the shift fork slot (2).

2. The gearbox cylinder shift fork shaft according to claim 1, characterized in that: A torsion groove (8) is provided on the inner wall of the cross-shaped docking groove (11), and the torsion groove (8) is connected to the cross-shaped docking groove (11).

3. A gearbox cylinder shift fork shaft according to claim 2, characterized in that: A through hole (13) is provided at the center of the inner bottom wall of the shift fork slot (2), and a fastening bolt (3) is threaded between the shift fork shaft (1) and the shift fork slot (2).

4. A gearbox cylinder shift fork shaft according to claim 3, characterized in that: The shift fork shaft (1) has a locking screw hole (15) on one end face. One end of the fastening bolt (3) passes through the shift fork slot frame (2) and is threaded into the locking screw hole (15) of the shift fork shaft (1).

5. A gearbox cylinder shift fork shaft according to claim 1, characterized in that: The anti-detachment mechanism (5) includes a torsion frame (6), and the inner bottom wall of the shift fork slot frame (2) is provided with an adjustment port (10). The adjustment port (10) is connected to the cross docking slot (11), and the torsion frame (6) is rotatably connected in the adjustment port (10).

6. A gearbox cylinder shift fork shaft according to claim 5, characterized in that: The upper end of the torsion frame (6) is fixed with a limiting block (7), the limiting block (7) is rotatably connected in the torsion groove (8), and the side surface of the cross-shaped docking block (4) is provided with a limiting groove (9) to accommodate the limiting block (7).

7. A gearbox cylinder shift fork shaft according to claim 6, characterized in that: The lower end face of the torsion frame (6) is provided with a docking hole (12), and the docking hole (12) and the through hole (13) are arranged in the same circle.

8. A gearbox cylinder shift fork shaft according to claim 7, characterized in that: The bottom center of the fork slot (2) is provided with a receiving groove (14), and the torsion frame (6) is rotatably connected in the receiving groove (14).

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