Toothed traction machine
By introducing a planetary reducer into the traction machine, the problems of high cost, large space and serious energy loss of traditional traction machines are solved, and efficient transmission and extended motor life are achieved in low-speed heavy-duty traction machines.
Patent Information
- Application Number
- CN202520295330.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Traditional traction machines lack an intermediate speed reducer, which requires larger stator and rotor components, resulting in higher costs, larger space requirements, unstable torque output, and significant energy loss.
The planetary reducer design connects the traction sheave and rotor assembly, amplifies torque, reduces the space required for the stator core and rotor assembly, increases transmission efficiency, and reduces energy loss.
It achieves a compact design for low-speed, high-load traction machines, reducing costs, improving transmission efficiency, reducing energy loss, and extending motor lifespan.
Smart Images
Figure CN223752301U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of traction machine, especially a toothed traction machine. BACKGROUND
[0002] The conventional traction machine is mainly driven by the traction wheel directly by the motor. The rotational speed and the torque output of the motor are directly matched with the requirements of the traction wheel without the intermediate speed reducer link. In order to output larger torque, the stator and the rotor components are generally made large, resulting in high cost, large space occupation, poor stability of torque output, and more energy loss in the power transmission process. SUMMARY
[0003] The utility model discloses a low-speed large-load traction machine which can solve the above problems.
[0004] To achieve the above object, the utility model provides the following technical scheme:
[0005] A toothed traction machine comprises a base, a planetary reducer arranged in the base, and a traction wheel assembly arranged outside the planetary reducer. One side of the planetary reducer is provided with a rotor assembly. The planetary reducer is connected with the rotor assembly and the traction wheel assembly respectively. The outside of the rotor assembly is provided with a stator core. The rotor assembly and the stator core are arranged in the inside of a stator shell. The rotor assembly is arranged on the stator shell through first and second bearings. The stator shell is arranged on one side of the base and connected with the base. The other side of the base is provided with a base end cover. The axle of the traction wheel assembly is arranged on the base end cover through a third bearing. One side of the base end cover is provided with a brake.
[0006] Preferably, the rotor assembly comprises a rotating shaft and a rotor sleeved on the rotating shaft. The input end of the planetary reducer is connected with the rotating shaft. The output end of the planetary reducer is connected with the axle.
[0007] Preferably, the rotating shaft and the axle are coaxially arranged.
[0008] Preferably, the stator shell and the base end cover are both provided with bearing chambers. The two bearing chambers of the stator shell are arranged on the two sides of the rotor respectively. The first and second bearings are sleeved on the rotating shaft. The first and second bearings are arranged in the two bearing chambers of the stator shell respectively. The third bearing is sleeved on the axle. The axle penetrates through the base end cover. The third bearing is arranged in the bearing chamber of the base end cover.
[0009] Preferably, the end of the rotating shaft away from the planetary reducer is provided with an encoder.
[0010] Preferably, the wheel shaft and the rotating shaft are provided with flat keys, and the wheel shaft and the planetary reducer, the wheel shaft and the brake, and the rotating shaft and the planetary reducer are connected through the flat keys.
[0011] The traction wheel and the planetary reducer are compactly designed, the planetary reducer is used to amplify the torque, the space of the stator core and the rotor assembly is reduced, and cost is saved.The planetary reducer enables the traction wheel to obtain greater output torque at lower input rotating speed, improves transmission efficiency, reduces energy loss, reduces the load and starting current of the motor, and prolongs the service life of the motor. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 is a structural schematic view of the utility model;
[0013] Figure 2 is a front view structural schematic view of the utility model;
[0014] Figure 3 is a sectional view structural schematic view of Figure 1
[0015] Wherein: base 1, planetary reducer 2, input end 21, output end 22, traction wheel assembly 3, traction wheel 31, wheel shaft 32, third bearing 33, rotor assembly 4, rotating shaft 41, rotor 42, first bearing 43, second bearing 44, stator core 5, stator shell 6, base end cover 7, brake 8, bearing chamber 9, encoder 10. DETAILED DESCRIPTION
[0016] The technical scheme of the patent will be further described in detail in combination with specific embodiments.
[0017] In the description of the utility model, it should be explained that the terms "inner", "outer" and the like indicate the position or location relationship based on the position or location relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.
[0018] For example, Figures 1 to 3The utility model provides a toothed tractor, it includes a frame 1, is provided with planetary reducer 2 in the frame 1 and is provided with the traction wheel subassembly 3 outside planetary reducer 2, the traction wheel subassembly 3 includes the traction wheel 31 and the axle 32 of connecting the traction wheel 31, the axle 32 of utility model can adopt high strength alloy steel, has good toughness and fatigue resistance. One side of planetary reducer 2 is provided with rotor assembly 4, and rotor assembly 4 includes the rotating shaft 41 and the rotor 42 of setting on rotating shaft 41. Rotating shaft 41 and axle 32 are coaxially arranged. The input end 21 of planetary reducer 2 is connected with the rotating shaft 41 of rotor assembly 4, can convert high rotation speed into the low rotation speed suitable for the work of traction wheel 31, and the output torque is passed to the inside of planetary reducer 2 through rotating shaft 41, prepares for the subsequent torque amplification. The output end 22 of planetary reducer 2 is connected with the axle 32 of traction wheel subassembly 3, and the power after the deceleration and torque amplification of planetary reducer 2 is passed to the traction wheel 31 through the axle 32. The utility model adopts planetary reducer 2 still can reduce the vibration and noise in the operation process, improves the stability and comfort of equipment.
[0019] The outside of rotor assembly 4 is provided with stator core 5, and rotor assembly 4 and stator core 5 are arranged inside stator housing 6, and rotor assembly 4 is arranged on stator housing 6 through first bearing 43 and second bearing 44, and stator housing 6 is arranged on one side of frame 1 and is connected with frame 1, and the other side of frame 1 is provided with frame end cover 7, and the axle 32 of traction wheel subassembly 3 is arranged on the frame end cover 7 through third bearing 33. One side of frame end cover 7 is provided with brake 8, and the brake 8 of the utility model can be disc brake, and the brake disc is coaxially arranged with axle 32, and is used to realize emergency braking.
[0020] Stator housing 6 and frame end cover 7 are provided with bearing chamber 9, and the two bearing chambers 9 of stator housing 6 are arranged on the two sides of rotor 42, and first bearing 43 and second bearing 44 are sleeved on rotating shaft 41, and first bearing 43 and second bearing 44 are arranged in the two bearing chambers 9 of stator housing 6 respectively. Third bearing 33 is sleeved on axle 32, axle 32 penetrates frame end cover 7, and third bearing 33 is arranged in the bearing chamber 9 of frame end cover 7.
[0021] Further, the end of rotating shaft 41 away from planetary reducer 2 is provided with encoder 10 for monitoring the rotating speed of rotating shaft 41. There are keys (not shown) on axle 32 and rotating shaft 41, and axle 32 is connected with planetary reducer 2, axle 32 is connected with brake 8, and rotating shaft is connected with planetary reducer 2.
[0022] The traction wheel 31 and the planetary reducer 2 are compactly designed, the planetary reducer 2 is used for amplifying torque, the space of the stator core 5 and the rotor assembly 4 is reduced, and cost is saved; the planetary reducer 2 enables the traction wheel 31 to obtain greater output torque under lower input rotating speed, improves transmission efficiency, reduces energy loss, simultaneously reduces load and starting current of the motor, and prolongs service life of the motor.
[0023] It is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the involved claims.
[0024] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.
Claims
1. A toothed drag, comprising a frame, characterized in that: The machine base is provided with a planetary reducer and a traction wheel assembly outside the planetary reducer, one side of the planetary reducer is provided with a rotor assembly, the planetary reducer is connected with the rotor assembly and the traction wheel assembly respectively, the outside of the rotor assembly is provided with a stator core, the rotor assembly and the stator core are arranged inside the stator shell, the rotor assembly is arranged on the stator shell through first and second bearings, the stator shell is arranged on one side of the machine base and connected with the machine base, the other side of the machine base is provided with a machine base end cover, the wheel shaft of the traction wheel assembly is arranged on the machine base end cover through a third bearing, one side of the machine base end cover is provided with a brake.
2. The toothed drag according to claim 1, characterized in that: The rotor assembly comprises a rotating shaft and a rotor sleeved on the rotating shaft, the input end of the planetary reducer is connected with the rotating shaft, and the output end of the planetary reducer is connected with the wheel shaft.
3. The toothed drag of claim 1, wherein: The rotating shaft and the wheel shaft are coaxially arranged.
4. The toothed drag of claim 1, wherein: The stator shell and the machine base end cover are both provided with bearing chambers, the two bearing chambers of the stator shell are arranged on the two sides of the rotor respectively, the first and second bearings are sleeved on the rotating shaft, and the first and second bearings are arranged in the two bearing chambers of the stator shell respectively, the third bearing is sleeved on the wheel shaft, the wheel shaft penetrates through the machine base end cover, and the third bearing is arranged in the bearing chamber of the machine base end cover.
5. The toothed drag of claim 1, wherein: An encoder is arranged at the end of the rotating shaft away from the planetary reducer.
6. The toothed drag of claim 1, wherein: Flat keys are arranged on the wheel shaft and the rotating shaft, and the wheel shaft is connected with the planetary reducer, the wheel shaft is connected with the brake, and the rotating shaft is connected with the planetary reducer through flat keys.