A sliding device

By designing a sliding device that engages the second gear sleeve with the internal gear ring, the problems of non-compact structure and single power path switching of traditional sliding devices are solved. This achieves a compact structure and flexible power path switching in a small gearbox, improving the adaptability and functional expansion of the equipment.

CN224326656UActive Publication Date: 2026-06-05NINGBO DONLY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO DONLY CO LTD
Filing Date
2025-06-25
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Traditional sliding devices have a non-compact structure and an unreasonable internal layout, making them unsuitable for gearboxes with limited space. Furthermore, their power path switching methods are limited, making it difficult to cope with diverse working conditions.

Method used

A sliding device was designed, which uses a second gear sleeve to mesh with two internal gear rings to achieve dual power path switching. The internal gear rings and gears are connected by screws and pins. The structure is compact and adaptable to multiple working conditions.

Benefits of technology

It achieves a compact structure in a small gearbox, enabling flexible switching of power paths and improving the equipment's functional expansion and adaptability.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224326656U_ABST
    Figure CN224326656U_ABST
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Abstract

The utility model discloses a sliding device, include: output shaft, first tooth cover, first tooth cover is encased in the periphery of output shaft, second tooth cover, second tooth cover is encased in the periphery of first tooth cover, and second tooth cover can slide along first tooth cover, first gear, first gear is encased in the periphery of output shaft, and first gear sets up one end at first tooth cover, first inner tooth circle, first inner tooth circle is encased in the periphery of one end at first tooth cover, second gear, the second gear all is encased in the periphery of output shaft, and second gear sets up the other end at first tooth cover, second inner tooth circle, first inner tooth circle is encased in the periphery of the other end at first tooth cover, sliding assembly, sliding assembly sets up on second tooth cover. Through the application of the utility model, a kind of sliding device is presented, second tooth cover can be engaged with two inner tooth circles respectively, to realize double power path switching, can satisfy multi-working condition (such as different speed ratio or steering) demand.
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Description

Technical Field

[0001] This utility model relates to the field of gearbox technology, and in particular to a sliding device. Background Technology

[0002] In the field of gearbox technology, sliding mechanisms, as a crucial component, are widely used in various mechanical equipment, such as vehicle transmission systems and industrial automated production lines. Their performance directly affects the transmission efficiency, stability, and reliability of the equipment. Currently, traditional sliding mechanisms have several shortcomings: In terms of structural design, traditional sliding mechanisms are not compact enough, and their internal layout is not reasonable. Installation in space-constrained gearboxes is limited, making them unsuitable for scenarios with strict requirements on equipment size, such as gearboxes in small precision instruments. Regarding power path switching, their methods are too simplistic. Faced with complex and diverse working conditions, such as environments requiring different speed ratios or steering, traditional sliding mechanisms struggle to adapt flexibly, severely limiting the equipment's functional expansion and adaptability. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a sliding device, comprising:

[0004] Output shaft;

[0005] A first toothed sleeve is fitted around the periphery of the output shaft;

[0006] The second toothed sleeve is sleeved around the first toothed sleeve, and the second toothed sleeve can slide along the first toothed sleeve;

[0007] The first gear is sleeved around the output shaft and is located at one end of the first gear sleeve;

[0008] A first internal gear ring is sleeved around one end of the first gear sleeve shown, and a second gear sleeve is operably engaged with the first internal gear ring.

[0009] The second gear is sleeved around the output shaft, and the second gear is located at the other end of the first gear sleeve;

[0010] The second internal gear ring is sleeved around the other end of the first gear sleeve shown, and the second gear sleeve is operably engaged with the second internal gear ring.

[0011] A sliding component is disposed on the second toothed sleeve.

[0012] In another preferred embodiment, the sliding assembly includes: a slider, a fork, a pin, a bolt, and a washer. The slider is disposed on the second toothed sleeve, one end of the pin extends into the slider, the fork is sleeved around the pin, the fork and the pin are connected by the bolt, and the washer is disposed between the pin and the bolt.

[0013] In another preferred embodiment, it further includes: a first bearing and a second bearing, both of which are sleeved on the periphery of the output shaft, and both of which are located inside the first gear and in contact with the inner wall of the first gear.

[0014] In another preferred embodiment, it further includes a third bearing and a fourth bearing, both of which are sleeved on the periphery of the output shaft, and both are located inside the second gear and in contact with the inner wall of the second gear.

[0015] In another preferred embodiment, the assembly further includes a first spacer, a second spacer, and a third spacer, all of which are sleeved around the output shaft. The first spacer is located at the end of the first bearing furthest from the second bearing, the second spacer is located between the first bearing and the second bearing, and the third spacer is located between the second bearing and the first gear sleeve.

[0016] In another preferred embodiment, the assembly further includes a fourth spacer, a fifth spacer, and a sixth spacer, all of which are sleeved around the output shaft. The fourth spacer is located between the first gear sleeve and the third bearing, the fifth spacer is located between the third bearing and the fourth bearing, and the sixth spacer is located at the end of the fourth bearing furthest from the third bearing.

[0017] In another preferred embodiment, the first internal gear ring and the first gear are connected by a first screw and a first pin, the first screw and the first pin being respectively disposed on both sides of the output shaft.

[0018] In another preferred embodiment, the second internal gear ring and the second gear are connected by a second screw and a second pin, which are respectively disposed on both sides of the output shaft.

[0019] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: By applying the present invention, a sliding device is proposed, in which the second gear sleeve can mesh with the two internal gear rings respectively, thereby realizing the switching of dual power paths and meeting the needs of multiple working conditions (such as different speed ratios or steering); at the same time, the internal gear rings and gears are connected by screws and pins, and the internal gear rings are provided with internal teeth, making the device structure compact and widely applicable to gearboxes with small spaces, which is conducive to improving space utilization. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a sliding device according to the present invention.

[0021] In the attached image:

[0022] 1. Output shaft; 2. First gear sleeve; 3. Second gear sleeve; 4. First gear; 5. First internal gear ring; 6. Second gear; 7. Second internal gear ring; 8. Slider; 9. Shift fork; 10. Pin; 11. Bolt; 12. First bearing; 13. Second bearing; 14. Third bearing; 15. Fourth bearing; 16. First spacer; 17. Second spacer; 18. Third spacer; 19. Fourth spacer; 20. Fifth spacer; 21. Sixth spacer; 22. First screw; 23. First pin; 24. Second screw; 25. Second pin. Detailed Implementation

[0023] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0026] like Figure 1 As shown, a preferred embodiment of the sliding device includes:

[0027] Output shaft 1;

[0028] The first gear sleeve 2 is sleeved on the periphery of the output shaft 1;

[0029] The second toothed sleeve 3 is sleeved around the first toothed sleeve 2. The second toothed sleeve 3 can slide along the first toothed sleeve 2. The inner spline of the second toothed sleeve 3 meshes with the outer spline of the first toothed sleeve 2. The movement of the second toothed sleeve 3 can drive the movement of the first toothed sleeve 2.

[0030] The first gear 4 is sleeved on the periphery of the output shaft 1 and is located at one end of the first gear sleeve 2;

[0031] The first internal gear ring 5 is sleeved around one end of the first gear sleeve 2 shown, and the second gear sleeve 3 is operably engaged with the first internal gear ring 5.

[0032] The second gear 6 is sleeved on the periphery of the output shaft 1, and the second gear 6 is located at the other end of the first gear sleeve 2;

[0033] The second internal gear ring 7, the first internal gear ring 5 is sleeved on the periphery of the other end of the first gear sleeve 2 shown, and the second gear sleeve 3 is operably engaged with the second internal gear ring 7;

[0034] A sliding component is mounted on the second toothed sleeve 3.

[0035] Furthermore, in a preferred embodiment, the sliding assembly includes: a slider 8, a shift fork 9, a pin 10, a bolt 11, and a washer. The slider 8 is mounted on the second gear sleeve 3. One end of the pin 10 extends into the slider 8. The shift fork 9 is sleeved around the pin 10. The shift fork 9 and the pin 10 are connected by the bolt 11. The washer is disposed between the pin 10 and the bolt 11. Furthermore, by operating the shift fork 9, the operator can move the shift fork 9 towards the first internal gear ring 5 or the second internal gear ring 7. The movement of the shift fork 9 can cause the slider 8 to move towards the first internal gear ring 5 or the second internal gear ring 7. The movement of the slider 8 then causes the second gear sleeve 3 to slide along the first gear sleeve 2 towards the first internal gear ring 5 or the second internal gear ring 7.

[0036] Furthermore, as a preferred embodiment, it further includes: a first bearing 12 and a second bearing 13, both of which are sleeved on the periphery of the output shaft 1, and both are located inside the first gear 4 and in contact with the inner wall of the first gear 4. Furthermore, the first bearing 12 and the second bearing 13 can effectively support the rotation of the first gear 4, reducing friction and vibration during the rotation of the first gear 4.

[0037] Furthermore, as a preferred embodiment, it further includes a third bearing 14 and a fourth bearing 15, both of which are sleeved on the periphery of the output shaft 1. Both bearings are located inside the second gear 6 and contact the inner wall of the second gear 6. Furthermore, the third bearing 14 and the fourth bearing 15 can effectively support the rotation of the second gear 6, reducing friction and vibration during the rotation of the second gear 6.

[0038] Furthermore, as a preferred embodiment, it also includes: a first spacer 16, a second spacer 17, and a third spacer 18. The first spacer 16, the second spacer 17, and the third spacer 18 are all sleeved on the periphery of the output shaft 1. The first spacer 16 is located at the end of the first bearing 12 away from the second bearing 13. The second spacer 17 is located between the first bearing 12 and the second bearing 13. The third spacer 18 is located between the second bearing 13 and the first gear sleeve 2.

[0039] Furthermore, as a preferred embodiment, it also includes: a fourth spacer 19, a fifth spacer 20, and a sixth spacer 21. The fourth spacer 19, fifth spacer 20, and sixth spacer 21 are all sleeved around the output shaft 1. The fourth spacer 19 is located between the first gear sleeve 2 and the third bearing 14, the fifth spacer 20 is located between the third bearing 14 and the fourth bearing 15, and the sixth spacer 21 is located at the end of the fourth bearing 15 furthest from the third bearing 14. Furthermore, the first spacer 16, second spacer 17, third spacer 18, fourth spacer 19, fifth spacer 20, and sixth spacer 21 are used to precisely adjust the axial spacing between the various components, ensuring proper fit between the components of the device and further improving the stability and reliability of the device.

[0040] Furthermore, in a preferred embodiment, the first internal gear ring 5 and the first gear 4 are connected by a first screw 22 and a first pin 23, with the first screw 22 and the first pin 23 respectively disposed on both sides of the output shaft 1.

[0041] Furthermore, in a preferred embodiment, the second internal gear ring 7 and the second gear 6 are connected by a second screw 24 and a second pin 25, with the second screw 24 and the second pin 25 respectively disposed on both sides of the output shaft 1.

[0042] The working principle of this utility model is as follows: In use, the output shaft 1 can be fixed in the gearbox housing and connected to the output end of the external device. Then, the shift fork 9 is moved axially. The movement of the shift fork 9 drives the second gear sleeve 3 to mesh with the first internal gear ring 5 or the second internal gear ring 7. When the second gear sleeve 3 meshes with the first internal gear ring 5, the first gear 4 is driven to rotate, which causes the first internal gear ring 5 to rotate with the rotation of the first gear 4. The rotation of the first internal gear ring 5 drives the second gear sleeve 3 to rotate, and the rotation of the second gear sleeve 3 drives the second gear sleeve 3 to rotate. The first gear sleeve 2 rotates, which in turn drives the output shaft 1 to rotate, and ultimately drives the external device to rotate. When the second gear sleeve 3 meshes with the second internal gear ring 7, the second gear 6 is driven to rotate, which in turn drives the second internal gear ring 7 to rotate. The rotation of the second internal gear ring 7 drives the second gear sleeve 3 to rotate, which in turn drives the first gear sleeve 2 to rotate, which in turn drives the output shaft 1 to rotate, and ultimately drives the external device to rotate.

[0043] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sliding device, characterized in that, include: Output shaft; A first toothed sleeve is fitted around the periphery of the output shaft; The second toothed sleeve is sleeved around the first toothed sleeve, and the second toothed sleeve can slide along the first toothed sleeve; The first gear is sleeved around the output shaft and is located at one end of the first gear sleeve; A first internal gear ring is sleeved around one end of the first gear sleeve shown, and a second gear sleeve is operably engaged with the first internal gear ring. The second gear is sleeved on the periphery of the output shaft, and the second gear is located at the other end of the first gear sleeve; The second internal gear ring, wherein the first internal gear ring is sleeved around the other end of the first gear sleeve shown, and the second gear sleeve is operably engaged with the second internal gear ring; A sliding component is disposed on the second toothed sleeve.

2. The sliding device according to claim 1, characterized in that, The sliding assembly includes: a slider, a shift fork, a pin, a bolt, and a washer. The slider is disposed on the second toothed sleeve. One end of the pin extends into the slider. The shift fork is sleeved around the pin. The shift fork and the pin are connected by the bolt. The washer is disposed between the pin and the bolt.

3. The sliding device according to claim 1, characterized in that, Also includes: The first bearing and the second bearing are both sleeved on the periphery of the output shaft. The first bearing and the second bearing are both located inside the first gear and in contact with the inner wall of the first gear.

4. The sliding device according to claim 3, characterized in that, Also includes: The third and fourth bearings are both sleeved around the output shaft and are located inside the second gear and in contact with the inner wall of the second gear.

5. The sliding device according to claim 3, characterized in that, Also includes: A first spacer, a second spacer, and a third spacer are all fitted around the output shaft. The first spacer is located at the end of the first bearing furthest from the second bearing. The second spacer is located between the first bearing and the second bearing. The third spacer is located between the second bearing and the first gear sleeve.

6. The sliding device according to claim 4, characterized in that, Also includes: The fourth, fifth, and sixth spacers are all fitted around the output shaft. The fourth spacer is located between the first gear sleeve and the third bearing, the fifth spacer is located between the third bearing and the fourth bearing, and the sixth spacer is located at the end of the fourth bearing away from the third bearing.

7. The sliding device according to claim 3, characterized in that, The first internal gear ring and the first gear are connected by a first screw and a first pin, which are respectively located on both sides of the output shaft.

8. The sliding device according to claim 4, characterized in that, The second internal gear ring and the second gear are connected by a second screw and a second pin, which are respectively located on both sides of the output shaft.