Planet wheel with adjustable wheel tread

Abstract

The utility model relates to the technical field of planet gears, in particular to a planet gear with an adjustable wheel tread, which comprises a first gear and second gears, the outer wall of the first gear is meshed with a plurality of second gears, a support is arranged on the front side of each second gear, and a notch of the outer wall of each support is connected with an adjusting structure. A control structure is connected to the front face of the first gear, a gear ring is slidably connected to the outer side of the rear end face of the support, a handle in an adjusting structure drives a screw rod to rotate outwards through a second straight plate, the rotating screw rod drives a first straight plate to move outwards, and the moving first straight plate drives a sliding block to slide in a notch in the outer wall of the support. The sliding block drives the rotating shaft to move, the moving rotating shaft enables the second gears to move towards the outer side, the outer walls of the second gears are connected with protruding teeth on the inner wall of the gear ring in a meshed mode, split control over the second gears is achieved, normal transmission of the planet gear is guaranteed, and the use limitation of the planet gear is eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of planetary wheels with adjustable wheelbase, in particular to a planetary wheel with adjustable wheelbase. Background Art

[0002] A planetary gear, also known as a planetary gear drive or a star gear drive, is a gear drive mechanism that usually consists of three main parts: a central sun gear, outer planetary gears, and an inner ring gear.

[0003] For example, the announcement number "CN220268403U" is a planetary gear with adjustable wheelbase. The rotation of the active bevel gear drives the driven bevel gear meshing with it to rotate, and the rotation of the driven bevel gear drives the screw to rotate. As the screw rotates, the external hinged connecting column is driven to slide along the inside of the fine-tuning groove, thereby driving the sliding sleeve and the planetary gear to move synchronously, thereby synchronously adjusting multiple planetary gears, so that the planetary gears can be adjusted with a smaller displacement, so that the planetary gears can be well meshed with the outer ring gear and the sun gear, and the sliding sleeve can mesh more closely with the outer ring gear and the sun gear to ensure stable operation. However, when the planetary gear is used, the wheelbase is adjusted by adjusting multiple gears at the same time. When the gear is meshed and connected with the outer ring gear, the inner gear cannot be connected. Conversely, when connected with the inner gear, the outer ring gear cannot be connected, which affects the normal transmission of the planetary gear and leads to limitations in the use of the planetary gear. Utility Model Content

[0004] The utility model aims to solve the problem that the normal transmission of the planetary wheel is affected and the use of the planetary wheel is limited, and proposes a planetary wheel with adjustable wheelbase.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A planetary gear with adjustable wheelbase is designed, comprising a first gear and a second gear, wherein the outer wall of the first gear is meshingly connected with a plurality of second gears, a bracket is provided on the front side of the second gear, an outer wall notch of the bracket is connected with an adjustment structure, the front side of the first gear is connected with a control structure, a rear end face of the bracket is slidably connected with a gear ring, and a plurality of curved plates are fixedly connected to the outer wall of the gear ring.

[0007] Preferably, the adjustment structure includes a slider and a rotating shaft, the outer wall of the slider is slidingly connected to the outer wall groove of the bracket, the inner wall of the slider is rotationally connected to the outer wall of the rotating shaft, a first straight plate is fixedly connected to the inner side of the front side of the slider, the outer side of the first straight plate is rotationally connected to a screw rod, the outer wall of the screw rod is threadedly connected to a second straight plate, and a handle is fixedly connected to the end of the screw rod.

[0008] Preferably, the rear end surface of the second straight plate is fixedly connected to the front surface of the bracket.

[0009] Preferably, the rear end face of the rotating shaft is fixedly connected to the front face of the second gear.

[0010] Preferably, the control structure comprises a round rod and a round plate, the rear end face of the round rod is fixedly connected to the front face of the first gear, the front face of the round rod is fixedly connected to the rear end face of the round plate, and the front face of the round plate is fixedly connected to a cylinder.

[0011] Preferably, the rear of the outer wall of the round rod is rotatably connected to the inner wall of the bracket.

[0012] The utility model proposes a planetary wheel with adjustable wheelbase, which has the following beneficial effects: the handle in the adjustment structure drives the screw rod to rotate outward through the second straight plate, the rotating screw rod drives the first straight plate to move outward, the moving first straight plate drives the slider to slide in the outer wall groove of the bracket, the sliding slider drives the rotating shaft to move, and the moving rotating shaft causes the second gear to move outward, so that the outer wall of the second gear is meshed and connected with the inner wall protruding teeth of the gear ring, thereby realizing the split control of multiple second gears, ensuring the normal transmission of the planetary gear, and eliminating the use limitations of the planetary gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 The structural diagram of the connection relationship between the first gear, the second gear and the round rod;

[0015] Figure 3 for Figure 1 The structural diagram of A in the figure;

[0016] Figure 4 for Figure 2 Schematic diagram of the structure of B;

[0017] Figure 5 for Figure 1 Schematic diagram of the structure of C.

[0018] In the figure: 1. first gear, 2. adjustment structure, 201. slider, 202. rotating shaft, 203. first straight plate, 204. screw, 205. second straight plate, 206. handle, 3. control structure, 301. round rod, 302. round plate, 303. cylinder, 4. second gear, 5. bracket, 6. gear ring, 7. curved block, 8. curved plate. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Embodiment 1:

[0021] See also Figure 1-5 : In this embodiment, a planetary gear with adjustable wheelbase includes a first gear 1 and a second gear 4. The outer wall of the first gear 1 is meshedly connected with multiple second gears 4. The front of the second gear 4 is provided with a bracket 5. The outer wall groove of the bracket 5 is connected with an adjustment structure 2. The front of the first gear 1 is connected with a control structure 3. The outer side of the rear end face of the bracket 5 is slidably connected with a gear ring 6. The gear ring 6 can be rotated through the rear end face of the bracket 5. The outer wall of the gear ring 6 is fixed with multiple curved plates 8.

[0022] The adjustment structure 2 includes a slider 201 and a rotating shaft 202. The outer wall of the slider 201 is slidably connected to the outer wall slot of the bracket 5. The slider 201 is subjected to force to slide in a track inside the outer wall slot of the bracket 5. The inner wall of the slider 201 is rotationally connected to the outer wall of the rotating shaft 202. The rotating shaft 202 is subjected to force to rotate through the inner wall bearing of the slider 201. A first straight plate 203 is fixedly connected to the inner side of the front of the slider 201. The outer side of the first straight plate 203 is rotationally connected to a screw rod 204. The inner side of the outer wall of the screw 204 is subjected to force to rotate through the outer side bearing of the first straight plate 203. The outer wall of the screw 204 is threadedly connected to a second straight plate 205. A handle 206 is fixedly connected to the end of the screw 204. The handle 206 is convenient for driving the screw 204 to rotate. The rear end face of the second straight plate 205 is fixedly connected to the front face of the bracket 5. The rear end face of the rotating shaft 202 is fixedly connected to the front face of the second gear 4.

[0023] By adjusting the handle 206 in the structure 2, the screw rod 204 is rotated outward through the second straight plate 205, the rotating screw rod 204 moves the first straight plate 203 outward, the moving first straight plate 203 moves the slider 201 in the outer wall groove of the bracket 5, the sliding slider 201 moves the rotating shaft 202, and the moving rotating shaft 202 moves the second gear 4 outward, so that the outer wall of the second gear 4 is meshed and connected with the inner wall protruding teeth of the gear ring 6, thereby realizing the separate control of multiple second gears 4, ensuring the normal transmission of the planetary gear, and eliminating the use limitations of the planetary gear.

[0024] The control structure 3 includes a round rod 301 and a round plate 302. The rear end face of the round rod 301 is fixedly connected to the front face of the first gear 1, the front face of the round rod 301 is fixedly connected to the rear end face of the round plate 302, the front face of the round plate 302 is fixedly connected to a cylinder 303, the rear of the outer wall of the round rod 301 is rotatably connected to the inner wall of the bracket 5, and the round rod 301 is rotated by the bearing on the inner wall of the bracket 5.

[0025] Working principle:

[0026] Planetary gear installation:

[0027] Make the rear of the curved plate 8 on the outer wall of the gear ring 6 fit with the connecting frame, then the bolts pass through the curved plate 8 and are threadedly fixed to the connecting frame. At the same time, the output shaft of the power source is plugged into the outer wall of the cylinder 303 and fit with the circular plate 302, and then the bolts pass through the circular plate 302 and are fixed to the output end. At this time, the fixed gear plate 6 supports the bracket 5 by itself. If the output shaft of the power source cannot be plugged into the outer wall of the cylinder 303, insert the output shaft into the inner wall of the cylinder 303, and then the bolts pass through the cylinder 303 and press against the outer wall of the output shaft to form another installation.

[0028] Planetary gear wheel adjustment:

[0029] The matching handle 206 drives the screw rod 204 to rotate outward through the second straight plate 205, and the rotating screw rod 204 drives the first straight plate 203 to move outward, and the moving first straight plate 203 drives the slider 201 to slide in the outer wall groove of the bracket 5, and the sliding slider 201 drives the rotating shaft 202 to move, and the moving rotating shaft 202 causes the second gear 4 to move outward, so that the outer wall of the second gear 4 is meshed and connected with the inner wall protruding teeth of the gear ring 6, thereby realizing the separate control of multiple second gears 4.

[0030] Embodiment 2:

[0031] See also Figure 1-5 : In this embodiment, a planetary gear with adjustable wheelbase also includes a curved block 7, and the rear end faces of the plurality of curved blocks 7 are respectively fixedly connected to the front faces of the bearings 202.

[0032] Working principle:

[0033] When the second gear 4 cannot rotate after the wheelbase is adjusted, the outer wall of the curved block 7 can be plugged into the output end of the external power source to ensure that the second gear 4 can rotate normally.

[0034] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A planetary gear with adjustable wheelbase, comprising a first gear (1) and a second gear (4), characterized in that: The outer wall of the first gear (1) is meshingly connected with a plurality of second gears (4); a bracket (5) is provided on the front of the second gear (4); an outer wall notch of the bracket (5) is connected with an adjustment structure (2); the front of the first gear (1) is connected with a control structure (3); a toothed ring (6) is slidably connected to the outer side of the rear end surface of the bracket (5); and a plurality of curved plates (8) are fixedly connected to the outer wall of the toothed ring (6).

2. A planetary wheel with adjustable wheelbase according to claim 1, characterized in that: The adjustment structure (2) comprises a slider (201) and a rotating shaft (202); the outer wall of the slider (201) is slidably connected to the outer wall notch of the bracket (5); the inner wall of the slider (201) is rotationally connected to the outer wall of the rotating shaft (202); a first straight plate (203) is fixedly connected to the inner side of the front face of the slider (201); a screw rod (204) is rotationally connected to the outer side of the first straight plate (203); the outer wall of the screw rod (204) is threadedly connected to the second straight plate (205); and a handle (206) is fixedly connected to the end of the screw rod (204).

3. A planetary wheel with adjustable wheelbase according to claim 2, characterized in that: The rear end surface of the second straight plate (205) is fixedly connected to the front surface of the bracket (5).

4. The planetary wheel with adjustable wheelbase according to claim 2, characterized in that: The rear end surface of the rotating shaft (202) is fixedly connected to the front surface of the second gear (4).

5. The planetary wheel with adjustable wheelbase according to claim 1, characterized in that: The control structure (3) comprises a round rod (301) and a round plate (302); the rear end face of the round rod (301) is fixedly connected to the front face of the first gear (1); the front face of the round rod (301) is fixedly connected to the rear end face of the round plate (302); and the front face of the round plate (302) is fixedly connected to a cylinder (303).

6. A planetary wheel with adjustable wheelbase according to claim 5, characterized in that: The rear of the outer wall of the round rod (301) is rotatably connected to the inner wall of the bracket (5).

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