Mechanical gear shift mechanism

Abstract

This invention discloses a mechanical gear movement and displacement mechanism, including a gearbox, a gear displacement cavity, an input shaft, a clutch, a transmission shaft, a driving gear, a meshing gear, a movable seat, a driven gear, a first splined shaft, an output shaft, a second splined shaft, a meshing drive mechanism, a multi-position drive mechanism, a movable seat, an upper guide hole, and a lower guide hole. This invention features a reasonable and simple structure and low production cost. Since the meshing gear rotates around the axis of the first splined shaft, it can always mesh with the driven gear. Furthermore, the meshing gear rotating around the axis of the first splined shaft also facilitates meshing with driving gears of different numbers of teeth, thus improving the convenience of practical use. The multi-position drive mechanism in this invention can control the movable seat to four fixed positions by extending or retracting the first and second displacement cylinders, thereby ensuring the accuracy of meshing between the meshing gear and the driving gear at different positions, and thus ensuring the reliability and stability of gear movement and displacement.

Description

Technical Field

[0001] This invention relates to the field of mechanical equipment technology, and in particular to a moving and shifting mechanism for mechanical gears. Background Technology

[0002] A gear is a mechanical component that transmits motion and power through continuous meshing of gears on its rim. Gears have been used in transmission for a long time. In the late 19th century, the principle of generating gear cutting and the subsequent emergence of specialized machine tools and cutting tools based on this principle led to increased emphasis on the smoothness of gear operation as production developed. However, existing shifting mechanisms could only handle the displacement between two identical gears, and were not well-suited for the displacement between gears with different numbers of teeth, causing significant inconvenience and problems in practical use. Summary of the Invention

[0003] The purpose of this invention is to provide a mechanical gear displacement mechanism to solve the above-mentioned problems. This solves the problem that existing displacement mechanisms can only handle the displacement between two identical gears, and are not very adaptable to the displacement between gears with different numbers of teeth, which brings great inconvenience and trouble to actual use.

[0004] To address the aforementioned problems, this invention provides a technical solution: a mechanical gear shifting mechanism, innovatively comprising a gearbox, a gear shifting cavity, an input shaft, a clutch, a transmission shaft, a driving gear, a meshing gear, a movable seat, a driven gear, a first splined shaft, an output shaft, a second splined shaft, a meshing drive mechanism, a multi-position drive mechanism, a movable seat, an upper guide hole, and a lower guide hole; the gearbox contains a gear shifting cavity, and a clutch is fixedly connected to the upper left side of the gearbox; the left input hole of the clutch is fixedly connected to the right external side of the input shaft; the transmission shaft is movably connected to the upper side of the gear shifting cavity, and the left external side of the transmission shaft is fixedly connected to the right output hole of the clutch; there are several driving gears, each with a different number of teeth arranged from smallest to largest, and each driving gear is fixedly connected to the outside of the transmission shaft; the first splined shaft is movably connected to the center of the gear shifting cavity, and an output shaft is fixedly connected to the right end of the first splined shaft; the second splined shaft is movably connected to the lower side of the center of the gear shifting cavity; the upper side of the movable seat contains... The movable seat has a transverse upper guide hole, and a transverse lower guide hole is provided inside the lower side of the movable seat. The upper guide hole is movably connected to the outside of a first splined shaft. The lower guide hole is movably connected to the outside of a second splined shaft. The lower left side of the movable seat is movably connected to the inside of the opening on the right side of the upper guide hole. The meshing gear is movably connected to the upper opening inside the movable seat, and the upper side of the meshing gear is connected to the corresponding driving gear. The driven gear is movably connected to the lower side inside the movable seat, and the spline hole in the center of the driven gear is connected to the first splined shaft. The driven gear is connected to the lower side of the meshing gear; the right side of the meshing drive mechanism is located on the lower right side of the gear displacement cavity, the upper right side of the meshing drive mechanism is connected to the right side of the second spline shaft, the left side of the meshing drive mechanism is located inside the center of the movable seat, the upper left side of the meshing drive mechanism is connected to the lower left end of the movable seat, and the lower left side of the meshing drive mechanism is connected to the left side of the second spline shaft; the multi-position drive mechanism is located on the lower left side of the gear displacement cavity, and the upper side of the multi-position drive mechanism is movably connected to the lower left interior of the movable seat.

[0005] Preferably, the meshing drive mechanism includes a connecting arm, a first connecting groove, a first connecting block, a meshing cylinder, a first connecting shaft, a support, a first transmission gear, and a second transmission gear. One side of the connecting arm is internally fixedly connected to the outside right side of the second splined shaft, and the other side of the connecting arm has a first connecting groove. The upper side of the first connecting block is externally movably connected to the inside of the first connecting groove, and the bottom of the first connecting block is fixedly connected to the end of the piston rod on the upper side of the meshing cylinder. The bottom of the support is fixedly connected to the lower right side of the gear displacement cavity, and a connecting gear is fixedly connected to the inside of the upper side of the support. Shaft 1; the lower outer side of the engagement cylinder is located inside the upper side of the support, and the lower inner side of the engagement cylinder is movably connected to the outside of the connecting shaft 1; the first transmission gear is movably connected to the lower inner side of the center of the movable seat, and the spline hole in the center of the first transmission gear is connected to the second spline shaft; the second transmission gear is movably connected to the upper inner side of the center of the movable seat, and the through hole in the center of the second transmission gear is movably connected to the outside of the second spline shaft; the right end of the second transmission gear is fixedly connected to the lower left end of the movable seat, and the lower side of the second transmission gear is connected to the first transmission gear.

[0006] Preferably, the support is located directly below the right side of the second spline shaft.

[0007] Preferably, a spline hole is provided inside one side of the connecting arm, and the spline hole is fixedly connected to the outside right side of the spline shaft.

[0008] Preferably, the specific structure of the multi-position drive mechanism includes a displacement cylinder one, a connecting block three, a sliding shaft one, a connecting rod, a long groove, a sliding shaft two, a connecting block four, a displacement cylinder two, and a connecting shaft two; the upper side of the connecting rod is movably connected to the lower left side of the moving seat through the connecting shaft two, and a long groove is opened on the lower side of the connecting rod; the displacement cylinder one is horizontally fixedly connected to the lower left side of the gear displacement cavity, and the piston rod end of the right side of the displacement cylinder one is fixedly connected to the connecting block three; the right side of the connecting block three is fixedly connected to the sliding shaft one, and the sliding shaft one is externally movably connected to the inside of the long groove; the displacement cylinder two is located above the displacement cylinder one, and the displacement cylinder two is horizontally fixed to the lower left side of the gear displacement cavity, and the piston rod end of the right side of the displacement cylinder two is fixedly connected to the connecting block four; the right side of the connecting block four is fixedly connected to the sliding shaft two, and the sliding shaft two is externally movably connected to the inside of the long groove.

[0009] Preferably, the diameters of both sliding shaft one and sliding shaft two are equal to the width of the long groove.

[0010] Preferably, the drive shaft is parallel to the spline shaft.

[0011] Preferably, the second spline shaft is parallel to the first spline shaft.

[0012] The beneficial effects of this invention are:

[0013] (1) The present invention has a reasonable and simple structure, low production cost and convenient installation. Here, since the meshing gear rotates around the axis of the spline shaft, it can always mesh with the driven gear. In addition, the meshing gear that rotates around the axis of the spline shaft is also easy to mesh with the driving gear with different numbers of teeth, which improves the convenience of actual use.

[0014] (2) The multi-position drive mechanism provided in this invention can control the moving seat to be in four fixed positions by extending or shortening the displacement cylinder one and displacement cylinder two, thereby ensuring the accuracy of meshing between the meshing gear and the active gear in different positions, and thus ensuring the reliability and stability of gear movement displacement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the meshing drive mechanism.

[0017] Figure 3 for Figure 2 A partial side sectional view.

[0018] Figure 4 This is a schematic diagram of a multi-position drive mechanism.

[0019] Figure 5 for Figure 4 Another schematic diagram of its working state.

[0020] 1-Gearbox; 2-Gear displacement cavity; 3-Input shaft; 4-Clutch; 5-Drive shaft; 6-Driving gear; 7-Meshing gear; 8-Moving seat; 9-Driven gear; 10-Splined shaft one; 11-Output shaft; 12-Splined shaft two; 13-Meshing drive mechanism; 14-Multi-position drive mechanism; 15-Moving seat; 16-Upper guide hole; 17-Lower guide hole; 131-Connecting arm; 132-Connecting groove one; 133-Connecting block one; 134-Meshing cylinder; 135-Connecting shaft one; 136-Support; 137-Drive gear one; 138-Drive gear two; 141-Displacement cylinder one; 142-Connecting block three; 143-Sliding shaft one; 144-Connecting rod; 145-Long groove; 146-Sliding shaft two; 147-Connecting block four; 148-Displacement cylinder two; 149-Connecting shaft two. Detailed Implementation

[0021] like Figure 1As shown, this specific embodiment adopts the following technical solution: a mechanical gear shifting mechanism, including a gearbox 1, a gear shifting cavity 2, an input shaft 3, a clutch 4, a transmission shaft 5, a driving gear 6, a meshing gear 7, a movable seat 8, a driven gear 9, a first splined shaft 10, an output shaft 11, a second splined shaft 12, a meshing drive mechanism 13, a multi-position drive mechanism 14, a movable seat 15, an upper guide hole 16, and a lower guide hole 17; the gearbox 1 is provided with a gear shifting cavity 2 inside, and a clutch 4 is fixedly connected to the upper left side of the gearbox 1; the left input hole of the clutch 4 is connected to the right input shaft 3. The transmission shaft 5 is movably connected to the upper side of the gear shifting cavity 2, and the left side of the transmission shaft 5 is fixedly connected to the right output hole of the clutch 4. There are several drive gears 6, each with a different number of teeth arranged from smallest to largest, and each drive gear 6 is internally fixedly connected to the outside of the transmission shaft 5. The first spline shaft 10 is movably connected to the center of the gear shifting cavity 2, and the right end of the first spline shaft 10 is fixedly connected to the output shaft 11. The second spline shaft 12 is movably connected to the lower side of the center of the gear shifting cavity 2. The upper interior of the movable seat 15 is provided with a transverse... The upper guide hole 16 and the lower guide hole 17 are provided inside the lower side of the movable seat 15. The upper guide hole 16 is movably connected to the outside of the first spline shaft 10. The lower guide hole 17 is movably connected to the outside of the second spline shaft 12. The lower left side of the movable seat 8 is movably connected to the inside of the opening on the right side of the upper guide hole 16. The meshing gear 7 is movably connected to the upper opening inside the movable seat 8, and the upper side of the meshing gear 7 is connected to the corresponding driving gear 6. The driven gear 9 is movably connected to the lower side inside the movable seat 8, and the spline hole in the center of the driven gear 9 is connected to the first spline shaft 10. The driven gear 9 is connected to the lower side of the meshing gear 7 on its upper side; the meshing drive mechanism 13 is located on the lower right side of the gear displacement cavity 2 on its right side, and the upper right side of the meshing drive mechanism 13 is connected to the right side of the spline shaft 12 on its upper right side. The meshing drive mechanism 13 is located in the center of the movable seat 15 on its left side, and the upper left side of the meshing drive mechanism 13 is connected to the lower left end of the movable seat 8 on its lower left side. The lower left side of the meshing drive mechanism 13 is connected to the left side of the spline shaft 12 on its lower left side. The multi-position drive mechanism 14 is located on the lower left side of the gear displacement cavity 2, and the upper side of the multi-position drive mechanism 14 is movably connected to the lower left interior of the movable seat 15.

[0022] like Figure 2 and Figure 3As shown, the specific structure of the meshing drive mechanism 13 includes a connecting arm 131, a connecting groove 132, a connecting block 133, a meshing cylinder 134, a connecting shaft 135, a support 136, a transmission gear 137, and a transmission gear 138. One side of the connecting arm 131 is internally fixedly connected to the outside right side of the splined shaft 12, and the connecting groove 132 is formed on the lower side of the other side of the connecting arm 131. The upper side of the connecting block 133 is movably connected to the inside of the connecting groove 132, and the bottom of the connecting block 133 is fixedly connected to the end of the piston rod on the upper side of the meshing cylinder 134. The bottom of the support 136 is fixedly connected to the lower right side of the gear displacement cavity 2, and the upper side of the support 136 is internally fixed... A connecting shaft 135 is connected; the lower outer side of the engagement cylinder 134 is located inside the upper side of the support 136, and the lower inner side of the engagement cylinder 134 is movably connected to the outside of the connecting shaft 135; the transmission gear 137 is movably connected to the lower inner side of the center of the movable seat 15, and the spline hole in the center of the transmission gear 137 is connected to the spline shaft 12; the transmission gear 138 is movably connected to the upper inner side of the center of the movable seat 15, and the through hole in the center of the transmission gear 138 is movably connected to the outside of the spline shaft 12; the right end of the transmission gear 138 is fixedly connected to the lower left end of the movable seat 8, and the lower side of the transmission gear 138 is connected to the transmission gear 137.

[0023] The support 136 is located directly below the right side of the second spline shaft 12, which helps the engagement cylinder 134 to drive the second spline shaft 12 to rotate through the connecting arm 131. The connecting arm 131 has a spline hole inside one side, and the spline hole is fixedly connected to the outside of the right side of the second spline shaft 12, thereby ensuring the stability and reliability of the transmission.

[0024] like Figure 4 and Figure 5As shown, the specific structure of the multi-position drive mechanism 14 includes a displacement cylinder 141, a connecting block 3 142, a sliding shaft 143, a connecting rod 144, a long groove 145, a sliding shaft 2 146, a connecting block 4 147, a displacement cylinder 2 148, and a connecting shaft 2 149; the upper side of the connecting rod 144 is movably connected to the lower left side of the movable seat 15 through the connecting shaft 2 149, and the lower side of the connecting rod 144 has a long groove 145; the displacement cylinder 141 is horizontally fixedly connected to the lower left side of the gear displacement cavity 2, and the piston rod end of the displacement cylinder 141 is... A connecting block 3 142 is fixedly connected to the gear; a sliding shaft 143 is fixedly connected to the right side of the connecting block 3 142, and the sliding shaft 143 is externally movably connected to the inside of the long groove 145; the displacement cylinder 2 148 is located above the displacement cylinder 141, and the displacement cylinder 2 148 is horizontally fixed inside the lower left side of the gear displacement cavity 2; a connecting block 4 147 is fixedly connected to the piston rod end on the right side of the displacement cylinder 2 148; a sliding shaft 2 146 is fixedly connected to the right side of the connecting block 4 147, and the sliding shaft 2 146 is externally movably connected to the inside of the long groove 145.

[0025] The diameters of sliding shaft 143 and sliding shaft 146 are both equal to the width of the long groove 145, thus ensuring that there is no gap during sliding; the transmission shaft 5 is parallel to spline shaft 10; and spline shaft 12 is parallel to spline shaft 10.

[0026] The invention is used as follows: It features a simple and reasonable structure, low production cost, and convenient installation. In use, the input shaft 3 first transmits power to the transmission shaft 5 via the clutch 4. The rotation of the transmission shaft 5 then sequentially drives the spline shaft 10 and output shaft 11 to rotate via the driving gear 6, meshing gear 7, and driven gear 9, outputting power. During movement, the power is first cut off via the clutch 4. Then, the shortening of the meshing cylinder 134 causes the connecting arm 131 to drive the spline shaft 12 to rotate. The rotation of the spline shaft 12 then sequentially drives the movable seat 8 to rotate via the transmission gear 137 and transmission gear 138, thereby disengaging the meshing gear 7 from the currently meshing driving gear 6. The moving seat 15 can then be moved via the multi-position drive mechanism 14. The gear 7 is moved to the required position, and then the extension of the engagement cylinder 134 causes the connecting arm 131 to rotate the spline shaft 12, thereby driving the engagement gear 7 to mesh with the corresponding driving gear 6. Since the engagement gear 7 rotates around the axis of the spline shaft 10, it can always mesh with the driven gear 9. In addition, the engagement gear 7, which rotates around the axis of the spline shaft 10, can also easily mesh with driving gears 6 with different numbers of teeth, thus improving the convenience of actual use. The multi-position drive mechanism 14 can control the moving seat 15 to be in four fixed positions by extending or shortening the displacement cylinder 141 and the displacement cylinder 148, thereby ensuring the accuracy of the engagement of the engagement gear 7 with the driving gear 6 in different positions, and thus ensuring the reliability and stability of the gear movement displacement.

[0027] The control method of this invention is either manual start-up or control through existing automation technology. The wiring diagram of the power element and the supply of power are common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail here.

[0028] In the description of the invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0029] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications may be made to the invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A mechanical gear moving displacement mechanism, characterized by: It includes a gearbox (1), a gear displacement chamber (2), an input shaft (3), a clutch (4), a transmission shaft (5), a drive gear (6), a meshing gear (7), a movable seat (8), a driven gear (9), a first splined shaft (10), an output shaft (11), a second splined shaft (12), a meshing drive mechanism (13), a multi-position drive mechanism (14), a movable seat (15), an upper guide hole (16), and a lower guide hole (17); The gearbox (1) is provided with a gear displacement cavity (2) inside, and a clutch (4) is fixedly connected to the upper left side of the gearbox (1). The left input hole of the clutch (4) is fixedly connected to the right external side of the input shaft (3); The drive shaft (5) is movably connected to the upper side of the gear displacement cavity (2), and the outer left side of the drive shaft (5) is fixedly connected to the right output hole of the clutch (4); There are several drive gears (6), and the number of teeth of the several drive gears (6) are different and arranged from small to large. The internal parts of the several drive gears (6) are fixedly connected to the outside of the transmission shaft (5). The spline shaft (10) is movably connected to the center of the gear displacement cavity (2), and the right end of the spline shaft (10) is fixedly connected to the output shaft (11). The second spline shaft (12) is movably connected to the lower center of the gear displacement cavity (2); The upper side of the movable base (15) is provided with a horizontal upper guide hole (16), and the lower side of the movable base (15) is provided with a horizontal lower guide hole (17). The upper guide hole (16) is internally movably connected to the outside of the spline shaft (10); The lower guide hole (17) is internally movably connected to the outside of the spline shaft (12); The lower left side of the movable seat (8) is externally and movably connected to the inside of the opening on the right side of the upper guide hole (16); The meshing gear (7) is movably connected to the upper opening inside the movable seat (8), and the upper side of the meshing gear (7) is connected to the corresponding driving gear (6); The driven gear (9) is movably connected to the lower side inside the movable seat (8). The spline hole in the center of the driven gear (9) is connected to the spline shaft (10). The upper side of the driven gear (9) is connected to the lower side of the meshing gear (7). The right side of the meshing drive mechanism (13) is located on the lower right side of the gear displacement cavity (2). The upper right side of the meshing drive mechanism (13) is connected to the right side of the spline shaft II (12). The left side of the meshing drive mechanism (13) is located inside the center of the movable seat (15). The upper left side of the meshing drive mechanism (13) is connected to the lower left end of the movable seat (8). The lower left side of the meshing drive mechanism (13) is connected to the left side of the spline shaft II (12). The multi-position drive mechanism (14) is located on the lower left side of the gear displacement cavity (2), and the upper side of the multi-position drive mechanism (14) is movably connected to the lower left side of the movable seat (15). The specific structure of the meshing drive mechanism (13) includes a connecting arm (131), a connecting groove (132), a connecting block (133), a meshing cylinder (134), a connecting shaft (135), a support (136), a transmission gear (137), and a transmission gear (138). The connecting arm (131) is fixedly connected to the outside of the right side of the spline shaft (12) on one side, and a connecting groove (132) is provided on the lower side of the other side of the connecting arm (131). The upper side of the connecting block 1 (133) is movably connected to the inside of the connecting groove 1 (132), and the bottom of the connecting block 1 (133) is fixedly connected to the end of the piston rod on the upper side of the engagement cylinder (134). The bottom of the support (136) is fixedly connected to the lower right side of the gear displacement cavity (2), and a connecting shaft (135) is fixedly connected inside the upper side of the support (136). The lower outer side of the engagement cylinder (134) is located inside the upper side of the support (136), and the lower inner side of the engagement cylinder (134) is movably connected to the outside of the connecting shaft (135). The first transmission gear (137) is movably connected to the lower inner side of the center of the movable seat (15), and the spline hole in the center of the first transmission gear (137) is connected to the second spline shaft (12); The second transmission gear (138) is movably connected to the upper inner side of the center of the movable seat (15). The through hole in the center of the second transmission gear (138) is movably connected to the outside of the second splined shaft (12). The right end of the second transmission gear (138) is fixedly connected to the lower left end of the movable seat (8). The lower side of the second transmission gear (138) is connected to the first transmission gear (137).

2. The mechanical gear shifting mechanism according to claim 1, characterized in that: The support (136) is located directly below the right side of the spline shaft (12).

3. The mechanical gear shifting mechanism according to claim 1, characterized in that: The connecting arm (131) has a spline hole inside one side, and the spline hole is fixedly connected to the outside right side of the spline shaft (12).

4. The mechanical gear shifting mechanism according to claim 1, characterized in that: The specific structure of the multi-position drive mechanism (14) includes a displacement cylinder one (141), a connecting block three (142), a sliding shaft one (143), a connecting rod (144), a long groove (145), a sliding shaft two (146), a connecting block four (147), a displacement cylinder two (148), and a connecting shaft two (149). The upper side of the connecting rod (144) is movably connected to the lower left side of the movable seat (15) via the second connecting shaft (149), and a long groove (145) is provided on the lower side of the connecting rod (144). The displacement cylinder 1 (141) is horizontally fixedly connected to the lower left side of the gear displacement cavity (2), and the piston rod end on the right side of the displacement cylinder 1 (141) is fixedly connected to the connecting block 3 (142). The right side of the connecting block three (142) is fixedly connected to the sliding shaft one (143), and the sliding shaft one (143) is externally movably connected to the inside of the long groove (145); The second displacement cylinder (148) is located above the first displacement cylinder (141). The second displacement cylinder (148) is horizontally fixed inside the lower left side of the gear displacement cavity (2). The piston rod end on the right side of the second displacement cylinder (148) is fixedly connected to the fourth connecting block (147). The right side of the connecting block four (147) is fixedly connected to the sliding shaft two (146), and the sliding shaft two (146) is externally movably connected to the inside of the long groove (145).

5. The mechanical gear shifting mechanism according to claim 4, characterized in that: The diameters of the sliding shaft one (143) and the sliding shaft two (146) are both equal to the width of the long groove (145).

6. The mechanical gear shifting mechanism according to claim 1, characterized in that: The drive shaft (5) is parallel to the spline shaft (10).

7. The mechanical gear shifting mechanism according to claim 1, characterized in that: The second spline shaft (12) is parallel to the first spline shaft (10).

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