Traction machine
By using a planetary reducer as the main shaft in the traction machine, supporting the traction wheel and transmitting torque, and combining the direct connection design of block brakes and encoder, the problems of large space occupation and high cost of traditional traction machines are solved, and miniaturization and cost-effectiveness are achieved.
Patent Information
- Application Number
- CN202422213249.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-10
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-10
AI Technical Summary
In traditional traction machine design, the stator and rotor need to be made large to output large torque, resulting in large space occupation and high cost.
The planetary reducer is used as the main shaft to support the traction wheel and transmit torque, reducing the size of the stator and rotor. At the same time, the block brake is used to directly brake the traction wheel, canceling the additional brake wheel, and the encoder is directly connected to the input shaft to reduce jumping.
It realizes a miniaturized design, saving space and cost, while improving torque transmission efficiency and reducing the possibility of encoder damage.
Smart Images
Figure CN223150034U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of traction machines, and particularly relates to a traction machine. Background Art
[0002] In the design of traditional traction machines, in order to output a large torque, the stator and rotor generally need to be made very large, resulting in a large occupied space and higher costs. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a traction machine.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] A traction machine includes a machine base. A planetary speed reducer is arranged inside the machine base. One end of the planetary speed reducer penetrates through the machine base. A front housing is arranged on one side of the machine base corresponding to the planetary speed reducer. A stator and a rotor corresponding to the stator are arranged inside the front housing. The rotor is connected to the input shaft of the planetary speed reducer. The output shaft of the planetary speed reducer is coaxially connected with a traction wheel. The side of the traction wheel away from the rotor is connected to the machine base through a bearing.
[0006] Preferably, the machine base includes a first support seat and a second support seat, and a connecting plate for connection is arranged between the first support seat and the second support seat.
[0007] Preferably, the first support seat, the second support seat and the connecting plate are integrally formed.
[0008] Preferably, grooves are formed by inward depression on the opposite faces of the first support seat and the second support seat. A protrusion protrudes outward from the center of the groove of the second support seat, and the bearing is sleeved on the protrusion.
[0009] Preferably, brakes corresponding to the traction wheel are arranged on the outer peripheral walls of the first support seat and the second support seat.
[0010] Preferably, an end cover is arranged between the front housing and the machine base. The end cover is connected to the housing of the planetary speed reducer through a bolt penetrating through the machine base, and the front housing is connected to the end cover through bolts.
[0011] Preferably, an encoder coaxially connected to the input shaft of the planetary speed reducer is arranged inside the front housing.
[0012] The beneficial effects of the present utility model are as follows: The planetary speed reducer acts as the main shaft, which not only supports the traction wheel, but also transmits torque, and saves a bearing; the traction wheel also acts as a brake wheel and is directly braked by the block brakes on both sides; the speed reducer can amplify the torque by many times, so that the stator and the rotor can be made small enough, with low cost; the encoder is directly connected to the input shaft, reducing the possibility of encoder damage caused by encoder jitter. Brief Description of the Drawings
[0013] Figure 1 is a schematic structural diagram of the present utility model.
[0014] Figure 2 is a cross-sectional view of the present utility model.
[0015] Wherein: machine base 10, first support seat 12, second support seat 14, connecting plate 16, front housing 18, stator 20, rotor 22, planetary speed reducer 24, traction wheel 26, protrusion 28, bearing 30, encoder 32, brake 34. Detailed Embodiment
[0016] The technical solutions of this patent will be further described in detail below in conjunction with the specific embodiments.
[0017] As Figure 1 and Figure 2 shown, a traction machine of the present utility model includes a machine base 10. A planetary speed reducer 24 is arranged inside the machine base 10. One end of the planetary speed reducer 24 penetrates through the machine base 10. A front housing 18 is arranged on one side of the machine base 10 corresponding to the planetary speed reducer 24. A stator 20 and a rotor 22 corresponding to the stator 20 are arranged inside the front housing 18. The rotor 22 is connected to the input shaft of the planetary speed reducer 24 by bolts for transmitting torque. The output shaft of the planetary speed reducer 24 is coaxially connected with a traction wheel 26. One side of the traction wheel 26 away from the rotor 22 is connected to the machine base 10 through a bearing 30; the planetary speed reducer 24 acts as the main shaft, making the overall volume of the traction machine smaller. It not only supports the traction wheel 26, but also plays a role in amplifying torque, and at the same time saves the use of a bearing 30, with low cost.
[0018] The machine base 10 includes a first support seat 12 and a second support seat 14. A connecting plate 16 for connection is arranged between the first support seat 12 and the second support seat 14; the first support seat 12 and the second support seat 14 are used to carry the traction wheel 26, and their stability between them is supported by the connecting plate 16, and at the same time, less material is used for the overall frame and the quality is lighter.
[0019] The first support base 12, the second support base 14, and the connecting plate 16 are integrally formed. Compared with distributed processing, integral forming has higher concentricity, making the traction wheel 26 run more smoothly during rotation.
[0020] On the opposite faces of the first support base 12 and the second support base 14, recesses are formed inward. At the center of the recess of the second support base 14, a protrusion 28 protrudes outward. The bearing 30 is sleeved on the protrusion 28. The recess can make the overall length smaller when accommodating the traction wheel 26, and the protrusion 28 protrudes from the second support base 14 to support the bearing 30.
[0021] Brake devices 34 corresponding to the traction wheel 26 are provided on the outer peripheral walls of the first support base 12 and the second support base 14. The brake devices 34 are installed on the first support base 12 and the second support base 14 to directly brake the traction wheel 26, eliminating the need to install a brake wheel, with a simple structure and low cost.
[0022] An end cover is provided between the front housing 18 and the machine base 10. The end cover is connected to the housing of the planetary reducer 24 through bolts passing through the machine base 10 to fix the planetary reducer 24, making the planetary reducer 24 concentric with the bearing 30 and making the overall operation more stable. The front housing 18 is connected to the end cover through bolts.
[0023] An encoder 32 coaxially connected to the input shaft of the planetary reducer 24 is provided inside the front housing 18. The encoder 32 is directly connected to the input shaft of the planetary reducer 24, reducing the possibility of damage to the encoder 32 caused by the jitter of the encoder 32.
[0024] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.
[0025] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A traction machine, characterized in that: It includes a machine base, a planetary speed reducer is arranged inside the machine base, one end of the planetary speed reducer penetrates through the machine base, a front housing is arranged on one side of the machine base corresponding to the planetary speed reducer, a stator and a rotor corresponding to the stator are arranged inside the front housing, the rotor is connected to the input shaft of the planetary speed reducer, the output shaft of the planetary speed reducer is coaxially connected with a traction wheel, and one side of the traction wheel away from the rotor is connected to the machine base through a bearing.
2. The traction machine according to claim 1, characterized in that: The machine base includes a first support seat and a second support seat, and a connecting plate for connection is arranged between the first support seat and the second support seat.
3. The traction machine according to claim 2, characterized in that: The first support seat, the second support seat and the connecting plate are integrally formed.
4. The traction machine according to claim 2, characterized in that: On the opposite surfaces of the first support seat and the second support seat, grooves are formed by inward depression, and a protrusion is formed by outward protrusion at the center of the groove of the second support seat, and the bearing is sleeved on the protrusion.
5. The traction machine according to claim 2, wherein: Brakes corresponding to the traction wheel are arranged on the outer peripheral walls of the first support seat and the second support seat.
6. The traction machine according to claim 1, characterized in that: An end cover is arranged between the front housing and the machine base, the end cover is connected to the housing of the planetary speed reducer through bolts penetrating through the machine base, and the front housing is connected to the end cover through bolts.
7. The traction machine according to claim 4, characterized in that: An encoder coaxially connected to the input shaft of the planetary speed reducer is arranged inside the front housing.