Automobile gearbox separating mechanism

Abstract

The invention belongs to the technical field of gearboxes, and particularly relates to an automobile gearbox separating mechanism which comprises an operating rod and an arc-shaped separating fork body, arc-shaped mounting seats are fixedly mounted at the lower ends of the two sides of the operating rod, storage shafts are rotatably mounted on the two arc-shaped mounting seats, folding frames are fixedly mounted on the two storage shafts, and the folding frames are fixedly mounted on the operating rod. And the rotation directions of the two storage shafts are opposite. In the invention, the two folding frames are attached to the operating rod and the arc-shaped separation fork body is attached to the folding frames at the beginning, that is, the whole mechanism occupies a small space, so that the mechanism can be conveniently moved into a gearbox for installation, and when the mechanism is used after installation, a small servo motor is controlled to start to enable a one-way screw rod to rotate, and a threaded seat drives a linear sliding block to move along a linear guide rail; the two linear racks synchronously move in the same direction, under meshing transmission of the linear racks and the external gear, the storage shaft drives the folding frames to rotate by 90 degrees, then the two folding frames are unfolded, and the arc-shaped separation fork body automatically moves to a preset use position.

Description

Technical Field

[0001] The present invention relates to a transmission, and more particularly to a separating mechanism for an automotive transmission. Background Art

[0002] The separating fork, i.e., the shift fork, is a component on an automotive transmission, connected to the shift lever and located at the lower end of the lever. It toggles the intermediate transmission gear to change the input / output speed ratio. The shift fork is mainly used for the clutch, and in an automobile, a separating fork is also required to control the release bearing on the automotive transmission for speed regulation. For example, the utility model patent with the publication number CN221097419U discloses a separating fork for a forklift transmission, which includes an arc-shaped fork body, a fork body part, and a fork head part. The fork body part includes a connecting sleeve, a fulcrum block, and a docking head. A chute is provided at the end of the connecting sleeve, and the fork head part is slidably connected to the inner wall of the chute. A first fixing bolt is provided on the surface of the connecting sleeve. A docking socket is provided at the end of the arc-shaped fork body, and internal plugs are fixedly connected to both sides of the docking head, and the internal plugs and the docking socket fit each other. A second fixing bolt is provided on the surface of the arc-shaped fork body; by removing the first fixing bolt and the second fixing bolt, the mutual separation of the arc-shaped fork body, the fork body part, and the fork head part can be realized, which provides convenience for the installation and disassembly of the entire transmission separating fork. Moreover, when one of the components is damaged, only one of the components needs to be replaced, thus avoiding the replacement of the entire transmission separating fork, effectively saving the maintenance cost.

[0003] Although the above patent has advantages, the inventor found the following deficiencies: The space occupied by the arc-shaped fork body in the transmission is small, and it is not convenient to insert a wrench into the transmission for disassembly and assembly using bolts, and the specific position of the arc-shaped fork body cannot be adjusted in real time, resulting in the inability to control the installation error. In view of this, the present invention designs a separating mechanism for an automotive transmission. Summary of the Invention

[0004] The main purpose of the present disclosure is to provide a separating mechanism for an automotive transmission to effectively solve the problems raised by the inventor in the above background art.

[0005] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A separating mechanism for an automotive transmission includes an operating rod and an arc-shaped separating fork body. Arc-shaped mounting seats are fixedly installed at the lower ends on both sides of the operating rod, and receiving shafts are rotatably installed on both arc-shaped mounting seats. Folding frames are fixedly installed on both receiving shafts, and the rotation directions of the two receiving shafts are opposite. Arc-shaped separating fork bodies are movably installed on both folding frames, and separating bearing pressing contacts are fixedly installed at the inner edges of both arc-shaped separating fork bodies.

[0007] Preferably, a placement groove is formed inside the operating rod, and a linear guide rail is fixedly installed in the placement groove. Two symmetrically arranged linear sliders are slidably installed on the linear guide rail, and the moving directions of the two linear sliders are the same. Linear racks are fixedly installed on the sides of the two linear sliders away from each other. External gears are fixedly installed at the ends of the two storage shafts outside the folding frame. The two linear racks are both located between the two external gears, and the linear racks are meshed with the external gears.

[0008] Preferably, a small servo motor is fixedly installed in the placement groove, and the output end of the small servo motor is fixedly connected to a driving rotating shaft. A one-way lead screw is rotatably installed in the placement groove, and the one-way lead screw penetrates the linear guide rail. A threaded seat is threadedly installed on the one-way lead screw. Side sliding grooves are formed on both sides of the linear guide rail, and the threaded seat is slidably installed in the side sliding grooves. The two linear sliders are respectively fixedly installed on both sides of the threaded seat. The driving rotating shaft is fixedly connected to the top end of the one-way lead screw.

[0009] Preferably, the folding frames rotate in opposite directions, and the rotation angle of the folding frames is between zero and ninety degrees.

[0010] Preferably, a directional block is fixedly installed on the folding frame, and a driving shaft is rotatably installed on the directional block. A steering seat is fixedly installed on the driving shaft. The arc-shaped separating fork body is detachably installed on the steering seat.

[0011] Preferably, a first bevel gear is fixedly installed on the part of the driving shaft located inside the steering seat. An activity groove is formed inside the folding frame, and a linkage shaft is rotatably installed in the activity groove. Two second bevel gears are fixedly installed on the linkage shaft. One of the second bevel gears is meshed with the first bevel gear. A fixed block is fixedly installed in the activity groove, and a driven shaft is rotatably installed on the fixed block. Two fourth bevel gears are fixedly installed on the driven shaft. One of the fourth bevel gears is meshed with the other second bevel gear. A third bevel gear is fixedly installed on the part of the storage shaft located inside the activity groove. The other fourth bevel gear is meshed with the third bevel gear.

[0012] Preferably, a notch is formed on the side of the steering seat close to the folding frame, and the linkage shaft penetrates the notch. The rotation angle of the arc-shaped separating fork body is between zero and ninety degrees.

[0013] Preferably, a small electric push rod is fixedly installed in the activity groove, and the output end of the small electric push rod is fixedly connected to a hinge joint. The hinge joint is hinged to the arc-shaped separating fork body, and the hinge joint is slidably installed on the folding frame.

[0014] Preferably, support blocks are fixedly installed on both sides of the operating rod, and a hydraulic actuator contact block is fixedly installed at the top end of the operating rod.

[0015] In view of this, compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] (1) In the present application, the operating rod, the fulcrum block, and the hydraulic actuator contact block can be integrally formed, while the arc-shaped separating fork body is independently installed for replacement, so as to avoid replacing the entire transmission separating mechanism, save maintenance costs, and ensure that the telescopic end of the hydraulic actuator can be in good contact with the hydraulic actuator contact block. The separating bearing pressing contact head and the arc-shaped separating fork body are installed through a lubricating sleeve to reduce friction and improve service life.

[0017] (2) In the present application, before installation, the two folding frames are attached to the operating rod, and the arc-shaped separating fork body is attached to the folding frame, that is, the occupied space of the entire mechanism is small, which is convenient to move it into the transmission for installation. When used after installation, control the start of the small servo motor to make the one-way lead screw rotate, then the threaded seat drives the linear slider to move along the linear guide rail, and the two linear racks move synchronously in the same direction. Under their meshing drive with the external gear, the receiving shaft drives the folding frame to rotate 90 degrees, and then the two folding frames unfold, that is, the arc-shaped separating fork body automatically moves to the predetermined use position.

[0018] (3) In the present application, during the rotation of the receiving shaft, the third bevel gear drives the fourth bevel gear to rotate, so that the driven shaft drives the second bevel gear to rotate through another fourth bevel gear, and then under the transmission of another second bevel gear and the first bevel gear, the driving shaft rotates, so that the steering seat drives the arc-shaped separating fork body to rotate 90 degrees, and the two arc-shaped separating fork bodies can drive the separating bearing pressing contact head to work, which is flexible and reliable. And with the application of the small electric push rod, the specific position of the arc-shaped separating fork body can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure shows the schematic structural diagram of the folded automotive transmission separating mechanism provided by the present invention;

[0020] Figure 2 The figure shows the schematic structural diagram of the unfolded automotive transmission separating mechanism provided by the present invention;

[0021] Figure 3 The figure shows Figure 2 the cross-sectional view in

[0022] Figure 4 The figure shows Figure 3 the schematic structural diagram of the first part in

[0023] Figure 5 The figure shows Figure 3 the schematic structural diagram of the second part in

[0024] Figure 6 The figure shows Figure 5Enlarged schematic diagram at position A in [the relevant context].

[0025] Icon:

[0026] 1 - Operating lever; 2 - Arc-shaped mounting base; 3 - Storage shaft; 4 - Folding frame; 5 - External gear; 6 - Linear guide rail; 7 - Linear slider; 8 - Linear rack; 9 - Arc-shaped separating fork body; 10 - Separation bearing pressing contact; 11 - Steering seat; 12 - Fulcrum block; 13 - Hydraulic actuator contact block; 14 - Small servo motor; 15 - Main shaft rotating shaft; 16 - One-way lead screw; 17 - Side chute; 18 - Threaded seat; 19 - Driving shaft; 20 - First bevel gear; 21 - Linking shaft; 22 - Second bevel gear; 23 - Fixed block; 24 - Driven shaft; 25 - Third bevel gear; 26 - Small electric push rod; 27 - Hinge joint; 28 - Fourth bevel gear. Specific implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0028] Please refer to Figures 1-6 , the present invention provides the following embodiments:

[0029] An automotive transmission separating mechanism includes an operating lever 1 and an arc-shaped separating fork body 9. Arc-shaped mounting bases 2 are fixedly installed at the lower ends on both sides of the operating lever 1, and storage shafts 3 are rotatably installed on both of the two arc-shaped mounting bases 2. Folding frames 4 are fixedly installed on both of the two storage shafts 3, and the rotation directions of the two storage shafts 3 are opposite. The arc-shaped separating fork bodies 9 are movably installed on both of the two folding frames 4, and separation bearing pressing contacts 10 are fixedly installed at the edges inside the two arc-shaped separating fork bodies 9.

[0030] Specifically, for the operating lever 1 and the arc-shaped separating fork body 9, arc-shaped mounting bases 2 are fixedly installed at the lower ends on both sides of the operating lever 1, and storage shafts 3 are rotatably installed on both of the two arc-shaped mounting bases 2. Folding frames 4 are fixedly installed on both of the two storage shafts 3, and the rotation directions of the two storage shafts 3 are opposite. The arc-shaped separating fork bodies 9 are movably installed on both of the two folding frames 4, and separation bearing pressing contacts 10 are fixedly installed at the edges inside the two arc-shaped separating fork bodies 9.

[0031] Specifically, a small servo motor 14 is fixedly installed in the placement groove, and the output end of the small servo motor 14 is fixedly connected to a driving rotating shaft 15. A one-way lead screw 16 is rotatably installed in the placement groove, and the one-way lead screw 16 penetrates through the linear guide rail 6. A threaded seat 18 is threadedly installed on the one-way lead screw 16. Side sliding grooves 17 are formed on both sides of the linear guide rail 6, and the threaded seat 18 is slidably installed in the side sliding grooves 17. Two linear sliders 7 are respectively fixedly installed on both sides of the threaded seat 18. The driving rotating shaft 15 is fixedly connected to the top end of the one-way lead screw 16. The two folding frames 4 rotate in opposite directions, and the rotation angle of the folding frame 4 is between zero and ninety degrees.

[0032] Specifically, a positioning block is fixedly installed on the folding frame 4, and a driving shaft 19 is rotatably installed on the positioning block. A steering seat 11 is fixedly installed on the driving shaft 19. The arc-shaped separating fork body 9 is detachably installed on the steering seat 11. A first bevel gear 20 is fixedly installed on the part of the driving shaft 19 located inside the steering seat 11. An activity groove is formed inside the folding frame 4, and a linkage shaft 21 is rotatably installed in the activity groove. Two second bevel gears 22 are fixedly installed on the linkage shaft 21. One second bevel gear 22 meshes with the first bevel gear 20. A fixed block 23 is fixedly installed in the activity groove, and a driven shaft 24 is rotatably installed on the fixed block 23. Two fourth bevel gears 28 are fixedly installed on the driven shaft 24. One fourth bevel gear 28 meshes with the other second bevel gear 22. A third bevel gear 25 is fixedly installed on the part of the receiving shaft 3 located inside the activity groove. The other fourth bevel gear 28 meshes with the third bevel gear 25. A notch is formed on one side of the steering seat 11 close to the folding frame 4, and the linkage shaft 21 penetrates through the notch. The rotation angle of the arc-shaped separating fork body 9 is between zero and ninety degrees.

[0033] Specifically, a small electric push rod 26 is fixedly installed in the activity groove, and the output end of the small electric push rod 26 is fixedly connected to a hinge joint 27. The hinge joint 27 is hinged to the arc-shaped separating fork body 9, and the hinge joint 27 is slidably installed on the folding frame 4.

[0034] Specifically, fulcrum blocks 12 are fixedly installed on both sides of the operating rod 1, and a hydraulic actuator contact block 13 is fixedly installed at the top end of the operating rod 1.

[0035] The specific implementation manner of this embodiment is as follows: The operating rod 1, the fulcrum blocks 12, and the hydraulic actuator contact block 13 can adopt an integrated molding method, while the arc-shaped separating fork body 9 is independently installed for easy replacement, avoiding the replacement of the entire transmission separation mechanism, saving maintenance costs, and ensuring that the telescopic end of the hydraulic actuator can be in good contact with the hydraulic actuator contact block 13. The separation bearing pressing contact head 10 and the arc-shaped separating fork body 9 are installed through a lubricating sleeve to reduce friction and improve service life;

[0036] Before installation, the mechanism is in Figure 1The state is that the two folding frames 4 are attached to the operating rod 1, and the arc-shaped separating fork body 9 is attached to the folding frame 4, that is, the occupied space of the whole mechanism is relatively small, which is convenient for moving it into the gearbox for installation. When it is used after installation, the small servo motor 14 is controlled to start, so that the one-way lead screw 16 rotates, then the threaded seat 18 drives the linear slider 7 to move along the linear guide rail 6, and the two linear racks 8 move synchronously in the same direction. Under the meshing drive with the external gear 5, the receiving shaft 3 drives the folding frame 4 to rotate by 90 degrees, and then the two folding frames 4 unfold, that is, the arc-shaped separating fork body 9 automatically moves to the predetermined use position;

[0037] During the rotation of the receiving shaft 3, the third bevel gear 25 drives the fourth bevel gear 28 to rotate, so that the driven shaft 24 drives the second bevel gear 22 to rotate through another fourth bevel gear 28, and then under the transmission of another second bevel gear 22 and the first bevel gear 20, the driving shaft 19 rotates, so that the steering seat 11 drives the arc-shaped separating fork body 9 to rotate by 90 degrees. As Figure 2 shown, the two arc-shaped separating fork bodies 9 can drive the separating bearing pressing contact 10 to work, which is flexible and reliable. And with the application of the small electric push rod 26, the specific position of the arc-shaped separating fork body 9 can be adjusted.

[0038] In the description of this specification, the description of reference terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0039] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, according to the content of this specification, many modifications and changes can be made. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art in the relevant technical field can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An automotive transmission separation mechanism, characterized in that: It includes a joystick (1) and an arc-shaped separating fork body (9). At the lower ends on both sides of the joystick (1), arc-shaped mounting seats (2) are fixedly installed, and a receiving shaft (3) is rotatably installed on each of the two arc-shaped mounting seats (2). A folding frame (4) is fixedly installed on each of the two receiving shafts (3), and the rotation directions of the two receiving shafts (3) are opposite. An arc-shaped separating fork body (9) is movably installed on each of the two folding frames (4). At the inner edges of the two arc-shaped separating fork bodies (9), separating bearing pressing contacts (10) are fixedly installed.

2. The separating mechanism of an automotive transmission according to claim 1, characterized in that: A placement groove is formed inside the joystick (1), and a linear guide rail (6) is fixedly installed in the placement groove. Two symmetrically arranged linear sliders (7) are slidably installed on the linear guide rail (6), and the moving directions of the two linear sliders (7) are the same. A linear rack (8) is fixedly installed on the outer side of each of the two linear sliders (7). At the outer ends of the two receiving shafts (3) located outside the folding frame (4), an external gear (5) is fixedly installed. The two linear racks (8) are both located between the two external gears (5), and the linear rack (8) meshes with the external gear (5).

3. The automotive transmission separating mechanism according to claim 2, characterized in that: A small servo motor (14) is fixedly installed in the placement groove, and the output end of the small servo motor (14) is fixedly connected to a driving rotating shaft (15). A one-way lead screw (16) is rotatably installed in the placement groove, and the one-way lead screw (16) penetrates through the linear guide rail (6). A threaded seat (18) is threadedly installed on the one-way lead screw (16). Side sliding grooves (17) are formed on both sides of the linear guide rail (6), and the threaded seat (18) is slidably installed in the side sliding grooves (17). The two linear sliders (7) are respectively fixedly installed on both sides of the threaded seat (18). The driving rotating shaft (15) is fixedly connected to the top end of the one-way lead screw (16).

4. The automotive transmission separating mechanism according to claim 3, characterized in that: The rotation directions of the two folding frames (4) are opposite, and the rotation angle of the folding frame (4) is between zero and ninety degrees.

5. The separating mechanism of an automotive transmission according to claim 4, characterized in that: A positioning block is fixedly installed on the folding frame (4), and a driving shaft (19) is rotatably installed on the positioning block. A steering seat (11) is fixedly installed on the driving shaft (19). The arc-shaped separating fork body (9) is detachably installed on the steering seat (11).

6. The automotive transmission separating mechanism according to claim 5, wherein: A first bevel gear (20) is fixedly installed on the part of the driving shaft (19) located inside the steering seat (11). An activity groove is formed inside the folding frame (4), and a linkage shaft (21) is rotatably installed in the activity groove. Two second bevel gears (22) are fixedly installed on the linkage shaft (21). One of the second bevel gears (22) meshes with the first bevel gear (20). A fixed block (23) is fixedly installed in the activity groove, and a driven shaft (24) is rotatably installed on the fixed block (23). Two fourth bevel gears (28) are fixedly installed on the driven shaft (24). One of the fourth bevel gears (28) meshes with the other second bevel gear (22). A third bevel gear (25) is fixedly installed on the part of the receiving shaft (3) located inside the activity groove. The other fourth bevel gear (28) meshes with the third bevel gear (25).

7. The automotive transmission separating mechanism according to claim 6, characterized in that: A notch is formed on one side of the steering seat (11) close to the folding frame (4), and the linkage shaft (21) penetrates through the notch. The rotation angle of the arc-shaped separating fork body (9) is between zero and ninety degrees.

8. The separating mechanism of an automotive transmission according to claim 7, characterized in that: A small electric push rod (26) is fixedly installed in the movable groove, and the output end of the small electric push rod (26) is fixedly connected with a hinge joint (27). The hinge joint (27) is hinged to the arc-shaped separating fork body (9), and the hinge joint (27) is slidably installed on the folding frame (4).

9. The separation mechanism of an automotive transmission according to claim 1, characterized in that: Support blocks (12) are fixedly installed on both sides of the operating rod (1), and a hydraulic actuator contact block (13) is fixedly installed at the top of the operating rod (1).

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