Gear engaging gear set

Abstract

The utility model provides a gear engaging gear set which comprises a base, a gear engaging gear mechanism and a one-way limiting mechanism used for limiting the gear engaging gear mechanism to only rotate in one direction are arranged on the base, and the base comprises a gear box bottom plate, a gear box cover plate and a gear box base plate. The gear box base plate is fixedly packaged between the gear box cover plate and the gear box bottom plate, and a first guide hole and a second guide hole which are adjacent to each other are formed in the gear box cover plate. The gear engaging gear set is mainly composed of the base, the gear engaging gear mechanism and the one-way limiting mechanism, the gear engaging gear mechanism is mainly composed of the cylindrical shaft, the annular gear, the transmission gear and the friction plate, and the one-way limiting mechanism is mainly composed of the limiting gear, the first limiting rod and the second limiting rod. And under the action of the one-way limiting mechanism, the transmission gear can stably rotate in one way.

Description

Technical Field

[0001] The utility model relates to the technical field of gearboxes, in particular to a gear-engaging group. Background Art

[0002] A Chinese patent with application number 202010063425.2 discloses a unidirectionally controlled mechanical gearbox, including an input shaft, a shift shaft, a forward shaft and an output shaft. The input shaft, the shift shaft and the forward shaft are distributed in a triangle and both ends are movably connected to the gearbox housing. The input shaft and the shift shaft are both provided with involute splines. The input shaft is connected to the shift shaft through a transmission gear set. The shift shaft is provided with a gear gear set, which is movably connected to the shift shaft. The forward shaft is provided with a passive gear set corresponding to the gear gear set. The same end of the forward shaft and the output shaft is connected through a unidirectional rotating gear set.

[0003] Although the above-mentioned one-way control mechanical transmission realizes one-way control of the forward and backward transmission routes by adopting the one-way control transmission route and the high-power overrunning load, thereby achieving the effect of reducing energy consumption and noise, the above-mentioned one-way control mechanical transmission still has the problem of one-way rotation instability during actual use.

[0004] For this purpose, a shifting gear set is proposed. Utility Model Content

[0005] The utility model aims to solve the problem raised in the background technology and provides a gear shifting gear set.

[0006] The specific technical solutions are as follows:

[0007] A gear shifting gear set, comprising:

[0008] A base is provided with a gear engaging mechanism and a one-way limiting mechanism for limiting the gear engaging mechanism to rotate in only one direction.

[0009] As a preferred solution of the utility model, the base includes a gear box bottom plate, a gear box cover plate and a gear box pad plate, and the gear box pad plate is fixedly packaged between the gear box cover plate and the gear box bottom plate, wherein:

[0010] The gear box cover plate is provided with a first guide hole and a second guide hole which are adjacently arranged;

[0011] The gear box backing plate is provided with a first mounting groove and a second mounting groove, the first mounting groove is generally circular, the second mounting groove is communicated with the first mounting groove, and the second mounting groove is generally approximately triangular.

[0012] As a preferred scheme of the utility model, the gear shifting mechanism includes a cylindrical shaft, a ring gear, a transmission gear and a friction plate. The cylindrical shaft is rotatably installed inside the first mounting groove, one end of the cylindrical shaft movably passes through the gear box cover, and a spline shaft is integrally formed at one end of the cylindrical shaft that movably passes through the gear box cover. The diameter of the spline shaft is smaller than the diameter of the cylindrical shaft, so that a step is formed at the connection between the spline shaft and the cylindrical shaft. The ring gear is fixedly sleeved on the cylindrical shaft, and the ring gear is located inside the first mounting groove, the transmission gear is sleeved on the spline shaft and locked by a locking piece, the friction plate is sleeved on the spline shaft, and the friction plate is pressed between the transmission gear and the step, a shift fork is integrally formed on the friction plate, and the friction plate and the transmission gear are both located on the outside of the gear box cover.

[0013] As a preferred solution of the utility model, the one-way limiting mechanism includes a limiting gear, the limiting gear is slidably mounted inside the second mounting groove, and the teeth on the limiting gear can be stuck between the teeth on the ring gear, and a first limiting rod and a second limiting rod are fixedly mounted on the limiting gear, the distal end of the first limiting rod movably passes through the first guide hole and extends into the shift fork, and the distal end of the second limiting rod movably extends into the second guide hole, wherein:

[0014] When the transmission gear drives the friction plate to rotate counterclockwise, the shift fork on the friction plate shifts the first limit rod to drive the teeth on the limit gear to fit between the teeth on the ring gear, and at the same time, the limit gear is squeezed on the inner wall of the second mounting groove, so that the transmission gear cannot continue to rotate counterclockwise;

[0015] When the transmission gear drives the friction plate to rotate clockwise, the shift fork on the friction plate shifts the first limit rod to drive the teeth on the limit gear to leave the teeth on the ring gear, while overcoming the friction force between the friction plate and the transmission gear, so that the transmission gear can rotate relative to the friction plate, thereby allowing the transmission gear to continue to rotate clockwise.

[0016] As a preferred solution of the utility model, the locking member includes a locking screw, which is threaded on an end of the spline shaft away from the cylindrical shaft, and the head of the locking screw is tightly pressed against a side of the transmission gear away from the cylindrical shaft.

[0017] As a preferred solution of the utility model, the locking member further includes a flat washer, which is sleeved on the screw rod of the locking screw and is located between the head of the locking screw and the transmission gear.

[0018] As a preferred solution of the utility model, the locking member further includes a corrugated gasket, the corrugated gasket is sleeved on the spline shaft, and the corrugated gasket is located between the flat gasket and the transmission gear.

[0019] As a preferred solution of the utility model, a plurality of mounting holes are provided on the base, and the plurality of mounting holes are all provided through the gear box bottom plate, the gear box cover plate and the gear box pad plate.

[0020] The utility model has the following beneficial effects:

[0021] The gear shifting gear set provided by the utility model is mainly composed of a base, a gear shifting gear mechanism and a one-way limiting mechanism. The gear shifting gear mechanism is mainly composed of a cylindrical shaft, a ring gear, a transmission gear and a friction plate. The one-way limiting mechanism is mainly composed of a limiting gear, a first limiting rod and a second limiting rod. Under the action of the one-way limiting mechanism, the transmission gear can stably rotate in one direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the gear shifting gear set provided in an embodiment of the utility model;

[0023] Figure 2 A schematic structural diagram of a gear shifting gear set from another perspective provided in an embodiment of the utility model;

[0024] Figure 3 A schematic diagram of a partial exploded structure of a gear shifting gear set provided in an embodiment of the utility model;

[0025] Figure 4 A schematic diagram of the partial structure of the gear shifting gear set provided in an embodiment of the utility model;

[0026] Figure 5 for Figure 4 Schematic diagram of the explosion structure.

[0027] In the attached figure:

[0028] 1. Gear box bottom plate; 101. Mounting hole;

[0029] 2. Gear box pad; 201. First mounting slot; 202. Second mounting slot;

[0030] 3. Gear box cover; 301. First guide hole; 302. Second guide hole;

[0031] 4. Cylindrical shaft; 401. Spline shaft; 402. Transmission gear; 403. Friction plate; 404. Shift fork; 405. Locking screw; 406. Flat washer; 407. Wave washer; 408. Limiting gear; 409. First limiting rod; 410. Second limiting rod; 411. Ring gear. DETAILED DESCRIPTION

[0032] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0033] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0034] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0035] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Example

[0037] The gear shifting gear set provided in this embodiment is as follows: Figure 1-Figure 5 As shown, it includes: a base, on which is provided a gear shifting mechanism and a one-way limiting mechanism for limiting the gear shifting mechanism to rotate in only one direction.

[0038] Specifically, in this embodiment, the base includes a gear box bottom plate 1, a gear box cover plate 3 and a gear box pad 2, and the gear box pad 2 is fixedly packaged between the gear box cover plate 3 and the gear box bottom plate 1, wherein:

[0039] The gear box cover plate 3 is provided with a first guide hole 301 and a second guide hole 302 which are adjacently arranged;

[0040] The gear box backing plate 2 is provided with a first mounting groove 201 and a second mounting groove 202 . The first mounting groove 201 is circular in shape as a whole, and the second mounting groove 202 is connected to the first mounting groove 201 . The second mounting groove 202 is approximately triangular in shape as a whole.

[0041] Specifically, in this embodiment, the gear mechanism for engaging the gear includes a cylindrical shaft 4, a ring gear 411, a transmission gear 402 and a friction plate 403. The cylindrical shaft 4 is rotatably mounted inside the first mounting groove 201. One end of the cylindrical shaft 4 movably penetrates the gear box cover 3. One end of the cylindrical shaft 4 movably penetrates the gear box cover 3 and is integrally formed with a spline shaft 401. The diameter of the spline shaft 401 is smaller than the diameter of the cylindrical shaft 4, so that a step is formed at the connection between the spline shaft 401 and the cylindrical shaft 4. The ring gear 411 is fixedly sleeved on the cylindrical shaft 4. The ring gear 411 is located inside the first mounting groove 201, the transmission gear 402 is mounted on the spline shaft 401 and locked by a locking member, the transmission gear 402 cooperates with the spline shaft 401 so that the transmission gear 402 and the spline shaft 401 will not rotate relative to each other, the friction plate 403 is mounted on the spline shaft 401, and the friction plate 403 is pressed between the transmission gear 402 and the step, a shift fork 404 is integrally formed on the friction plate 403, and the friction plate 403 and the transmission gear 402 are both located on the outside of the gear box cover 3.

[0042] Specifically, in this embodiment, the one-way limiting mechanism includes a limiting gear 408, which is slidably mounted inside the second mounting groove 202, and the teeth on the limiting gear 408 can be stuck between the teeth on the ring gear 411, and a first limiting rod 409 and a second limiting rod 410 are fixedly mounted on the limiting gear 408, and the distal end of the first limiting rod 409 movably passes through the first guide hole 301 and extends into the fork 404, and the distal end of the second limiting rod 410 movably extends into the second guide hole 302, wherein:

[0043] When the transmission gear 402 drives the friction plate 403 to rotate counterclockwise, the shift fork 404 on the friction plate 403 shifts the first limit rod 409 to drive the teeth on the limit gear 408 to fit between the teeth on the ring gear 411, and at the same time, the limit gear 408 is squeezed against the inner wall of the second mounting groove 202, so that the transmission gear 402 cannot continue to rotate counterclockwise;

[0044] When the transmission gear 402 drives the friction plate 403 to rotate clockwise, the shift fork 404 on the friction plate 403 shifts the first limit rod 409 to drive the teeth on the limit gear 408 to leave the teeth on the ring gear 411, and at the same time overcomes the friction force between the friction plate 403 and the transmission gear 402, so that the transmission gear 402 can rotate relative to the friction plate 403, thereby allowing the transmission gear 402 to continue to rotate clockwise.

[0045] Specifically, in this embodiment, the locking member includes a locking screw 405, which is threaded on the end of the spline shaft 401 away from the cylindrical shaft 4, and the head of the locking screw 405 is pressed against the side of the transmission gear 402 away from the cylindrical shaft 4. The locking screw 405 is provided to prevent the transmission gear 402 from falling off the spline shaft 401.

[0046] In order to improve the fixing effect of the transmission gear 402, the locking member also includes a flat washer 406, which is sleeved on the screw of the locking screw 405, and the flat washer 406 is located between the head of the locking screw 405 and the transmission gear 402. The flat washer 406 is used to prevent the transmission gear 402 from falling off the spline shaft 401.

[0047] In order to overcome the friction between the friction plate 403 and the transmission gear 402 and enable the transmission gear 402 to rotate relative to the friction plate 403, the locking member also includes a corrugated gasket 407, which is sleeved on the spline shaft 401 and located between the flat gasket 406 and the transmission gear 402. The corrugated gasket 407 can undergo elastic deformation, so that the friction between the friction plate 403 and the transmission gear 402 can change as the corrugated gasket 407 undergoes elastic deformation, thereby providing possible conditions for overcoming the friction between the friction plate 403 and the transmission gear 402.

[0048] In order to facilitate the installation and use of the gear shifting gear set, a plurality of mounting holes 101 are opened on the base, and the plurality of mounting holes 101 are all set through the gear box bottom plate 1, the gear box cover plate 3 and the gear box pad plate 2.

[0049] In summary, the gear shifting gear set provided in this embodiment has the following advantages:

[0050] When the transmission gear 402 drives the friction plate 403 to rotate counterclockwise, the shift fork 404 on the friction plate 403 shifts the first limit rod 409 to drive the teeth on the limit gear 408 to fit between the teeth on the ring gear 411, and at the same time, the limit gear 408 is squeezed against the inner wall of the second mounting groove 202, so that the transmission gear 402 cannot continue to rotate counterclockwise;

[0051] When the transmission gear 402 drives the friction plate 403 to rotate clockwise, the shift fork 404 on the friction plate 403 shifts the first limit rod 409 to drive the teeth on the limit gear 408 to leave the teeth on the ring gear 411, and at the same time overcomes the friction force between the friction plate 403 and the transmission gear 402, so that the transmission gear 402 can rotate relative to the friction plate 403, thereby allowing the transmission gear 402 to continue to rotate clockwise, and the structural performance is stable, so that the transmission gear 402 can stably rotate in one direction.

[0052] The above are only preferred embodiments of the present invention, and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear shifting gear set, characterized in that: include: A base is provided with a gear engaging mechanism and a one-way limiting mechanism for limiting the gear engaging mechanism to rotate in only one direction.

2. The gear shifting gear set according to claim 1, characterized in that: The base comprises a gear box bottom plate (1), a gear box cover plate (3) and a gear box pad plate (2), wherein the gear box pad plate (2) is fixedly packaged between the gear box cover plate (3) and the gear box bottom plate (1), wherein: The gear box cover plate (3) is provided with a first guide hole (301) and a second guide hole (302) which are arranged adjacent to each other; The gear box backing plate (2) is provided with a first mounting groove (201) and a second mounting groove (202); the first mounting groove (201) is generally circular; the second mounting groove (202) is communicated with the first mounting groove (201); the second mounting groove (202) is generally approximately triangular.

3. The gear shifting gear set according to claim 2, characterized in that: The gear mechanism for engaging gears comprises a cylindrical shaft (4), a ring gear (411), a transmission gear (402) and a friction plate (403); the cylindrical shaft (4) is rotatably mounted inside the first mounting groove (201); one end of the cylindrical shaft (4) movably penetrates the gear box cover plate (3); and one end of the cylindrical shaft (4) movably penetrates the gear box cover plate (3) is integrally formed with a spline shaft (401); the diameter of the spline shaft (401) is smaller than the diameter of the cylindrical shaft (4), so that a step is formed at the connection between the spline shaft (401) and the cylindrical shaft (4); the ring gear (411) is rotatably mounted inside the first mounting groove (201); one end of the cylindrical shaft (4) movably penetrates the gear box cover plate (3); and a spline shaft (401) is integrally formed at one end of the cylindrical shaft (4) movably penetrates the gear box cover plate (3). The gear box (402) is a gear box having a plurality of transmission gears (402 and 402) and a plurality of transmission gears (402 and 402) arranged on the gear box cover (3). The gear box (402) is a gear box having a plurality of transmission gears (402 and 402) and a plurality of transmission gears (402 and 402) arranged on the gear box cover (3).

4. The gear shifting gear set according to claim 3, characterized in that: The one-way limiting mechanism comprises a limiting gear (408), the limiting gear (408) is slidably mounted inside the second mounting groove (202), and the teeth on the limiting gear (408) can be inserted between the teeth on the ring gear (411), a first limiting rod (409) and a second limiting rod (410) are fixedly mounted on the limiting gear (408), the distal end of the first limiting rod (409) moves through the first guide hole (301) and extends into the shift fork (404), and the distal end of the second limiting rod (410) moves into the second guide hole (302), wherein: When the transmission gear (402) drives the friction plate (403) to rotate counterclockwise, the shift fork (404) on the friction plate (403) shifts the first limit rod (409) to drive the teeth on the limit gear (408) to fit between the teeth on the ring gear (411), and at the same time, the limit gear (408) is pressed against the inner wall of the second mounting groove (202), so that the transmission gear (402) cannot continue to rotate counterclockwise; When the transmission gear (402) drives the friction plate (403) to rotate clockwise, the shift fork (404) on the friction plate (403) shifts the first limit rod (409) to drive the teeth on the limit gear (408) to leave the teeth on the ring gear (411), while overcoming the friction force between the friction plate (403) and the transmission gear (402), so that the transmission gear (402) can rotate relative to the friction plate (403), thereby allowing the transmission gear (402) to continue to rotate clockwise.

5. The gear shifting gear set according to claim 4, characterized in that: The locking member comprises a locking screw (405), wherein the locking screw (405) is threadedly connected to an end of the spline shaft (401) away from the cylindrical shaft (4), and the head of the locking screw (405) is tightly pressed against a side surface of the transmission gear (402) away from the cylindrical shaft (4).

6. The gear shifting gear set according to claim 5, characterized in that: The locking member further comprises a flat washer (406), the flat washer (406) being sleeved on the screw rod of the locking screw (405), and the flat washer (406) being located between the head of the locking screw (405) and the transmission gear (402).

7. The gear shifting gear set according to claim 6, characterized in that: The locking member further comprises a corrugated gasket (407), wherein the corrugated gasket (407) is sleeved on the spline shaft (401), and the corrugated gasket (407) is located between the flat gasket (406) and the transmission gear (402).

8. The gear shifting gear set according to claim 7, characterized in that: The base is provided with a plurality of mounting holes (101), and the plurality of mounting holes (101) are all arranged through the gear box bottom plate (1), the gear box cover plate (3) and the gear box pad plate (2).

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