High-load speed reducer
Through the collaborative design of worm gear and planetary gear sets, combined with motor drive and gear structure, the problem of taking into account both the volume and load strength of the reducer is solved, and a high load and compact reducer design is achieved.
Patent Information
- Application Number
- CN202421205133.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-29
AI Technical Summary
When the design transmission ratio of existing reducers is too large, it is difficult to take into account small volume and high load strength, resulting in increased volume and complicated gear settings and insufficient load capacity.
The coordinated design of the worm gear and worm speed reduction assembly and the planetary gear speed reduction assembly is adopted. High load transmission is achieved through the intermediate shaft and gear structure, and a motor is installed in the transmission box to drive the worm rotation and drive the intermediate shaft and gear to coordinate the speed reduction.
While achieving high load transmission, the compact design reduces the volume of the reducer and improves the load strength.
Smart Images
Figure CN222315862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reducer equipment, in particular to a high-load reducer. Background Art
[0002] The load improvement of the reducer lies in the improvement of the material strength of the reducer and the transmission ratio of the gear. As we all know, when the reducer with a large transmission ratio is working, its load is higher. However, when the transmission ratio is designed to be too large, on the one hand, the volume of the reducer will increase. On the other hand, if a combined transmission ratio composed of multiple transmissions is adopted, there are more gears, and the load capacity of each individual gear is also determined by the overall load capacity of the reducer. Therefore, it is particularly important to reduce the volume of the reducer and improve the load strength, but there is little research on this in the existing technology. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a high-load reducer, which can solve the problem of whether the reducer has a small volume and meets a high load strength at the same time.
[0004] The utility model is realized through the following technical scheme: a high-load reducer of the utility model is characterized in that it includes a transmission case, a connecting plate is provided on one side of the transmission case, a worm gear reduction assembly is provided in the transmission case, a lower case is provided on the top of the connecting plate, a planetary gear reduction assembly is provided in the lower case, the worm gear reduction assembly includes a worm arranged in the transmission case, a worm wheel is meshed with one side of the worm, an intermediate rotating shaft is provided in the worm wheel, the planetary gear reduction assembly includes a cylinder arranged on the top of the connecting plate, the intermediate rotating shaft rotates through the cylinder, an output shaft is rotated in the upper case, and a gear structure is provided between one side of the output shaft and the lower case.
[0005] According to a further technical solution, the upper case is detachably provided on the top of the lower case, a motor is provided on one side of the transmission case, and the motor is dynamically connected to the worm gear reduction assembly.
[0006] According to a further technical solution, the intermediate shaft rotates through the transmission housing, and the motor is dynamically connected to the worm.
[0007] According to a further technical solution, the gear structure also includes two gear racks, three meshing gears are rotatably arranged between the gear racks, the top gear rack is fixed to the output shaft, an inner hole is arranged in the bottom gear rack, an intermediate gear is arranged on the top of the intermediate rotating shaft, the intermediate gear passes through the inner hole and meshes with the meshing gears, a gear ring is arranged on the inner side of the lower housing, and the gear ring meshes with the meshing gears.
[0008] According to a further technical solution, the cylinder is rotatably connected to the gear rack at the lower side.
[0009] The beneficial effects of the utility model are:
[0010] 1. An intermediate gear is set on the intermediate shaft in the worm gear, which is directly used as an intermediate transmission member, so that the planetary gear set and the worm gear set can cooperate to reduce speed. While meeting the high-load transmission, the compact design effectively reduces the size of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] For ease of explanation, the present invention is described in detail by the following specific embodiments and drawings.
[0012] Figure 1 This is a schematic diagram of the overall structure of a high-load reducer of the utility model;
[0013] Figure 2 for Figure 1 Schematic diagram of the internal structure of the device;
[0014] Figure 3 for Figure 2 Schematic diagram at A in the middle;
[0015] Figure 4 for Figure 1 Schematic diagram of the cutaway structure of the equipment;
[0016] Figure 5 for Figure 4 Schematic diagram at B in the middle;
[0017] In the figure, the motor 11, the transmission housing 12, the lower housing 13, the connecting plate 14, the upper housing 15, the output shaft 16, the gear rack 21, the meshing gear 22, the inner hole 23, the intermediate gear 24, the cylinder 26, the worm 31, the intermediate shaft 32, and the worm wheel 33. DETAILED DESCRIPTION
[0018] like Figure 1-Figure 5 As shown, the utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are Figure 1 The up-down, left-right, front-back directions of the projection relationship are consistent. The utility model is a high-load reducer, including a transmission case 12, a connecting plate 14 is arranged on one side of the transmission case 12, a worm gear reduction assembly is arranged in the transmission case 12, a lower case 13 is arranged on the top of the connecting plate 14, an upper case 15 is detachably arranged on the top of the lower case 13, a planetary gear reduction assembly is arranged in the lower case 13, a motor 11 is arranged on one side of the transmission case 12, and the motor 11 is dynamically connected to the worm gear reduction assembly.
[0019] Advantageously, the worm gear reduction assembly includes a worm 31 disposed in a transmission housing 12, a worm wheel 33 is meshedly disposed on one side of the worm 31, an intermediate rotating shaft 32 is disposed in the worm wheel 33, the intermediate rotating shaft 32 rotates through the transmission housing 12, and the motor 11 is dynamically connected to the worm 31.
[0020] Advantageously, the planetary gear reduction assembly includes a cylinder 26 disposed on the top of the connecting plate 14, the intermediate shaft 32 rotates through the cylinder 26, an output shaft 16 rotates in the upper housing 15, and a gear structure is provided between one side of the output shaft 16 and the lower housing 13.
[0021] Advantageously, the gear structure includes two gear racks 21, and three meshing gears 22 are arranged to rotate between the gear racks 21. The top gear rack 21 is fixed to the output shaft 16, and an inner hole 23 is arranged in the bottom gear rack 21. An intermediate gear 24 is arranged on the top of the intermediate rotating shaft 32. The intermediate gear 24 passes through the inner hole 23 and meshes with the meshing gear 22. A gear ring is arranged on the inner side of the lower box body 13, and the gear ring meshes with the meshing gear 22.
[0022] Advantageously, the cylinder 26 is connected to the lower gear rack 21 in a rotationally fitting manner.
[0023] The reducer utilizes the motor 11 to drive the worm 31 to rotate, so that the worm 31 drives the intermediate shaft 32 to rotate, and the intermediate shaft 32 drives the intermediate gear 24 to rotate. After the intermediate gear 24 is meshed with the meshing gear 22, the meshing gear 22 is rotated inside the lower case 13, and then the gear rack 21 drives the output shaft 16 to rotate, thereby realizing the coordinated reduction function of the worm gear and the planetary gear set.
[0024] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A high-load type speed reducer, comprising a transmission housing (12), a connecting plate (14) is arranged on one side of the transmission housing (12), a worm gear speed reduction assembly is arranged in the transmission housing (12), a lower housing (13) is arranged on the top of the connecting plate (14), a planetary gear speed reduction assembly is arranged in the lower housing (13), characterized in that: The worm gear reduction assembly comprises a worm (31) arranged in the transmission housing (12), a worm wheel (33) meshingly arranged on one side of the worm (31), an intermediate rotating shaft (32) arranged in the worm wheel (33), a planetary gear reduction assembly comprises a cylinder (26) arranged on the top of the connecting plate (14), the intermediate rotating shaft (32) rotatably passes through the cylinder (26), an upper housing (15) is detachably arranged on the top of the lower housing (13), a motor (11) is arranged on one side of the transmission housing (12), the motor (11) is connected to the worm gear reduction assembly in power, an output shaft (16) is rotatably arranged in the upper housing (15), and a gear structure is arranged between one side of the output shaft (16) and the lower housing (13).
2. A high-load reducer according to claim 1, characterized in that: The intermediate rotating shaft (32) rotatably passes through the transmission housing (12), and the motor (11) is power-connected to the worm (31).
3. A high-load reducer according to claim 1, characterized in that: The gear structure comprises two gear racks (21), three meshing gears (22) are rotatably arranged between the gear racks (21), the top gear rack (21) is fixed to the output shaft (16), an inner hole (23) is arranged in the bottom gear rack (21), an intermediate gear (24) is arranged on the top of the intermediate rotating shaft (32), the intermediate gear (24) passes through the inner hole (23) and is meshed with the meshing gear (22), and a gear ring is arranged on the inner side of the lower box body (13), and the gear ring is meshed with the meshing gear (22).
4. A high-load reducer according to claim 3, characterized in that: The cylinder (26) is rotatably connected to the gear rack (21) at the lower side.