750W low inertia servo motor with aluminum housing
By employing a locking component in the motor and utilizing a pressure ring and wedge block slider structure, the interference fit problem between the bearing and the housing is solved, enabling convenient disassembly and assembly of the bearing and reducing the difficulty and cost of motor maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO TANGYING MACHINERY TECHNOLOGY CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-07-07
AI Technical Summary
In existing motors, the interference fit between the bearing and the housing makes disassembly and assembly difficult, increases maintenance costs, and easily damages components.
The bearing is locked by means of a locking component, including a retaining sleeve, a pressure ring, a slider, and a wedge. The wedge drives the slider to slide and lock the bearing, avoiding interference fit and simplifying the bearing assembly and disassembly process.
This enables convenient disassembly and assembly of bearings, reducing the difficulty and cost of motor inspection and maintenance.
Smart Images

Figure CN224473112U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of motor technology, and in particular to the aluminum housing of a 750W low inertia servo motor. Background Technology
[0002] The aluminum housing of a low-inertia servo motor, as a core supporting component, not only protects critical internal components such as the stator and rotor but also provides a stable mounting reference for the bearings to ensure concentricity and stability during motor operation. To prevent relative displacement of the bearings under high-speed operation and load, existing motors generally use an interference fit between the motor housing and the bearings. This fit achieves a tight connection through the dimensional interference between the inner bore of the housing and the outer ring of the bearing. However, while the interference fit brings structural stability, it also brings great inconvenience to the disassembly, assembly, and maintenance of the motor. Due to the tightness of the interference fit, separating the bearing from the housing is extremely difficult. Disassembly and assembly are not only time-consuming and labor-intensive but also prone to damaging the inner bore of the housing or the bearing, leading to component failure and increased maintenance costs. Utility Model Content
[0003] The purpose of this invention is to provide an aluminum housing for a 750W low-inertia servo motor to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an aluminum housing for a 750W low-inertia servo motor, including a housing body, a locking component installed on the housing body, the locking component including a fixing sleeve, the fixing sleeve being fixedly connected to the housing body, a pressure ring being slidably connected to the fixing sleeve, a plurality of sliding grooves being evenly distributed on the fixing sleeve, a slider being slidably connected in the sliding grooves, a wedge being fixedly connected to one side of the outer wall of the slider, the wedge being disposed on one side of the pressure ring, a stop being fixedly connected to the other side of the outer wall of the slider, a limit block being disposed on one side of the stop, the limit block being fixedly connected to the slider, and a pad being fixedly connected to the limit block.
[0005] Preferably, the slider has a limiting groove, and the limiting block is fixedly connected in the limiting groove.
[0006] Preferably, the pressure ring has a plurality of second mounting holes evenly distributed therein, and screws are installed in the second mounting holes. The housing body has a second threaded hole at the position corresponding to the second mounting hole, and the screw is threaded into the second threaded hole.
[0007] Preferably, the housing body has a through hole, one end of the through hole has a second groove at the position corresponding to the fixing sleeve, and the other end of the through hole has a first groove.
[0008] Preferably, a washer is fitted inside the second groove.
[0009] Preferably, the housing body has a through groove, and a plurality of first threaded holes are evenly distributed on the outer side of the through groove. The first threaded holes are opened on the housing body, and the housing body has a plurality of first mounting holes.
[0010] The advantages of the 750W low inertia servo motor aluminum housing provided by this utility model are as follows: The locking component of this utility model uses a pressure ring to push a wedge block, the wedge block drives the slider to slide towards the bearing side, the stop block on the slider cooperates with the washer in the second groove to lock the end face of the bearing outer ring, and the washer locks the side of the bearing outer ring, thereby fixing the bearing in the second groove. Since there is no interference fit between the housing body and the bearing, the disassembly and assembly of the bearing is simpler and more convenient, which can effectively reduce the difficulty of motor inspection and maintenance. Attached Figure Description
[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 This is a schematic diagram of the overall front view sectional structure of this utility model;
[0013] Figure 2 for Figure 1 Enlarged view of the structure of region A in the middle;
[0014] Figure 3 for Figure 1 Enlarged view of the structure of region B in the middle;
[0015] Figure 4 This is a three-dimensional structural diagram of the housing body of this utility model;
[0016] Figure 5 This is a three-dimensional structural diagram of the slider of this utility model;
[0017] Figure 6 This is a schematic diagram of the three-dimensional structure of the pad block of this utility model.
[0018] In the diagram: 1. Housing body; 11. Through groove; 12. First threaded hole; 13. First mounting hole; 14. Through hole; 15. First stepped groove; 16. Second stepped groove; 17. Washer; 2. Locking assembly; 21. Fixing sleeve; 22. Slide groove; 23. Slider; 24. Wedge; 25. Stop; 26. Limit groove; 27. Limit block; 28. Pad; 29. Pressure ring; 210. Second mounting hole; 211. Screw; 212. Second threaded hole. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] Please see the appendix Figure 1 -Appendix Figure 6 This utility model provides an embodiment of a 750W low-inertia servo motor aluminum housing, including a housing body 1. A locking component 2 is installed on the housing body 1. The locking component 2 includes a fixing sleeve 21, which is fixedly connected inside the housing body 1. A pressure ring 29 is slidably connected to the fixing sleeve 21. Multiple sliding grooves 22 are evenly distributed on the fixing sleeve 21. A slider 23 is slidably connected in the sliding grooves 22. A wedge 24 is fixedly connected to one side of the outer wall of the slider 23, and the wedge 24 is disposed on one side of the pressure ring 29. A wedge 24 is fixedly connected to the other side of the outer wall of the slider 23. A stop block 25 is attached, and a limit block 27 is provided on one side of the stop block 25. The limit block 27 is fixedly connected to the slider 23. A pad block 28 is fixedly connected to the limit block 27. A fixing sleeve 21 is used to accommodate the bearing. A pressure ring 29 is used to push the wedge block 24. The wedge block 24 drives the slider 23 to slide in the slide groove 22. The stop block 25 is used to lock the end face of the outer ring of the bearing, and the pad block 28 is used to lock the side of the outer ring of the bearing. A limit groove 26 is opened on the slider 23, and the limit block 27 is fixedly connected in the limit groove 26. The limit groove 26 is used to accommodate the limit block 27. The pressure ring Multiple second mounting holes 210 are evenly distributed on the pressure ring 29, and screws 211 are installed in the second mounting holes 210. A second threaded hole 212 is opened on the housing body 1 at the position corresponding to the second mounting holes 210, and the screws 211 are threaded into the second threaded hole 212. The second mounting holes 210 and the second threaded hole 212 are used to install the screws 211, and the screws 211 are used to fix the pressure ring 29. A through hole 14 is opened on the housing body 1. A second stepped groove 16 is opened at one end of the through hole 14 at the position corresponding to the fixing sleeve 21, and a second stepped groove 16 is opened at the other end of the through hole 14. There is a first groove 15 for installing a seal, and a second groove 16 for accommodating a bearing. A washer 17 is fitted inside the second groove 16 to increase the frictional resistance between the outer ring of the bearing and the second groove 16. A through groove 11 is provided on the housing body 1, and multiple first threaded holes 12 are evenly distributed on the outer side of the through groove 11. The first threaded holes 12 are provided on the housing body 1. Multiple first mounting holes 13 are provided on the housing body 1. The through groove 11 is used to accommodate signal lines, and the first threaded holes 12 and the first mounting holes 13 are used to install bolts.
[0021] Working principle: When using this utility model, the washer 17 can be installed into the second groove 16, the bearing can be installed into the second groove 16, the slider 23 can be installed into the slide groove 22, the pressure ring 29 can be installed on the fixing sleeve 21, the screw 211 can be installed into the second mounting hole 210 and screwed into the second threaded hole 212, so that the pressure ring 29 pushes the wedge block 24, the wedge block 24 drives the slider 23 to slide towards the bearing side, the slider 23 abuts against the outer ring of the bearing through the pad 28, and at the same time the stop block 25 also abuts the outer ring of the bearing against the washer 17, thereby locking the bearing; wherein, the through groove 11 on the housing body 1 is used to accommodate the signal line, the first threaded hole 12 and the first mounting hole 13 are both used to install bolts, the through hole 14 is used to accommodate the motor shaft, the first groove 15 is used to install the seal, and the limiting groove 26 is used to accommodate the limiting block 27.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
A 1.750W low-inertia servo motor aluminum housing, including the housing body (1), characterized in that: A locking assembly (2) is installed on the housing body (1). The locking assembly (2) includes a fixing sleeve (21) and the fixing sleeve (21) is fixedly connected to the housing body (1). A pressure ring (29) is slidably connected to the fixing sleeve (21). Multiple sliding grooves (22) are evenly distributed on the fixing sleeve (21). A slider (23) is slidably connected in the sliding groove (22). A wedge (24) is fixedly connected to one side of the outer wall of the slider (23) and the wedge (24) is located on one side of the pressure ring (29). A stop block (25) is fixedly connected to the other side of the outer wall of the slider (23). A limit block (27) is provided on one side of the stop block (25) and the limit block (27) is fixedly connected to the slider (23). A pad block (28) is fixedly connected to the limit block (27).
2. The aluminum housing of the 750W low inertia servo motor according to claim 1, characterized in that: The slider (23) has a limiting groove (26) and the limiting block (27) is fixedly connected in the limiting groove (26).
3. The aluminum housing of the 750W low inertia servo motor according to claim 1, characterized in that: The pressure ring (29) has a plurality of second mounting holes (210) evenly distributed on it. Screws (211) are installed in the second mounting holes (210). A second threaded hole (212) is provided on the housing body (1) at the position corresponding to the second mounting hole (210), and the screw (211) is threaded into the second threaded hole (212).
4. The aluminum housing of the 750W low inertia servo motor according to claim 1, characterized in that: The housing body (1) has a through hole (14), one end of the through hole (14) has a second groove (16) at the position corresponding to the fixed sleeve (21), and the other end of the through hole (14) has a first groove (15).
5. The aluminum housing of the 750W low inertia servo motor according to claim 4, characterized in that: A washer (17) is fitted inside the second groove (16).
6. The aluminum housing of the 750W low inertia servo motor according to claim 4, characterized in that: The housing body (1) is provided with a through groove (11), and a plurality of first threaded holes (12) are evenly distributed on the outside of the through groove (11). The first threaded holes (12) are provided on the housing body (1), and a plurality of first mounting holes (13) are provided on the housing body (1).