Roller motor shell
Through the same-direction threaded connection and locking design of the outer fine thread and the inner thread groove, the problem of unstable connection of the electric drum shell in high-frequency applications is solved, and the stable connection and convenient disassembly of the motor end cover and the housing are achieved.
Patent Information
- Application Number
- CN202422325503.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-24
AI Technical Summary
In the prior art, the connection method of the electric drum shell cannot meet the needs of high-frequency applications, the connection strength of the traditional tightening screw is insufficient, and the interference fit and bonding methods are difficult to disassemble, which is not conducive to the recycling of motor parts.
The threaded connection between the outer fine pitch thread and the inner thread groove is adopted, and the follow-up engaging module and the cyclo-locking module are assembled to ensure that the motor end cover and the motor housing do not detach when rotating at high frequency. Automatic locking is achieved through the design of the locking column head and the detachment restriction seat. The spiral lines of the outer fine thread and the inner thread groove are set in the same direction to enhance the connection stability.
The connection stability of the motor end cover and the motor case during high-frequency rotation is achieved, which avoids detachment and facilitates the disassembly and recycling of motor parts.
Smart Images
Figure CN223141669U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of motor housings, and particularly relates to a drum motor housing. Background Art
[0002] At present, the assembly of the electric drum housing in the market uses traditional set screws for connection, or interference fit, or bonding with functional structural glue. Since the connection strength of the set screws cannot meet the requirements of high-frequency applications, and the processing methods of interference fit and bonding are difficult to disassemble, which is not conducive to the later recycling of motor parts, so it cannot meet the applicability. Content of the Utility Model
[0003] The utility model provides a drum motor housing for solving the problems raised in the background art.
[0004] The utility model provides the following technical solution: a drum motor housing, including a motor end cover and a motor housing. The motor end cover is provided with an external fine pitch thread, and the motor housing is provided with an internal thread groove. The external fine pitch thread is threadedly connected with the internal thread groove. An assembly follower engagement module and a rotary locking module are arranged between the motor end cover and the motor housing. The assembly follower engagement module and the rotary locking module are used for restricting the rotation after the threaded assembly of the motor end cover and the motor housing. The assembly follower engagement module includes an assembly convex seat, cavity movable balls and a micro adapter. The assembly convex seat is fixedly connected to the outer wall of the motor end cover. The number of the cavity movable balls is several, and several cavity movable balls are fixedly connected through the micro adapter. A locking stud head and a reset stud head are slidably connected inside the assembly convex seat. One end of the reset stud head is in contact with the motor housing. The rotary locking module includes a thread stripping limiting seat and a one-way check reversing page. The one-way check reversing page is rotatably connected to the inside of the thread stripping limiting seat. One end of the locking stud head slidably extends to the inside of the thread stripping limiting seat.
[0005] Wherein, a U-shaped sliding cavity is opened inside the assembly convex seat. One ends of the locking stud head and the reset stud head are both slidably connected to the inside of the U-shaped sliding cavity. An elastic connecting piece is fixedly connected between one end of the reset stud head and the inner wall of the U-shaped sliding cavity.
[0006] Wherein, an embedded clamping cover is arranged inside the motor housing. A head component clearance cavity is reserved between the internal thread groove and the embedded clamping cover. The head component clearance cavity is used to provide assembly space margin inside the motor housing.
[0007] Among them, the motor end cover is also provided with two symmetrically distributed D-shaped process grooves, and the spiral directions of the external fine-pitch thread and the internal thread groove are the same as the rotation direction of the drum motor on the inner side of the motor housing.
[0008] Among them, one side of the outer wall of the motor housing is fixedly connected with a reset spring pin, and the sliding output end of the reset spring pin is fixedly connected with the thread stripping limiting seat. The reset spring pin is used to adjust the limiting distance of the thread stripping limiting seat to the locking stud head.
[0009] Compared with the prior art, the beneficial effects of the present utility model are as follows: The motor assembly of the electric drum is completed through the thread fit between the external fine-pitch thread provided on the motor end cover and the internal thread groove provided on the motor housing. After the thread assembly, the reset stud head is automatically pushed by the extrusion force generated by the motor housing after being twisted, so that the locking stud head enters the inner side of the thread stripping limiting seat. The rotation directions of the motor end cover and the motor housing are restricted by the locking stud head and the thread stripping limiting seat, ensuring that the motor end cover and the motor housing will not be stripped of threads under the action of the rotation of the drum motor. At the same time, since the spiral directions of the external fine-pitch thread and the internal thread groove are the same as the rotation direction of the electric drum, the outer shell of the motor will be more firmly fixed under the action of the rotation of the drum motor during the operation of the motor, ensuring the connection stability between the motor end cover and the motor housing during the high-frequency operation of the drum motor.
[0010] Parts not involved in this device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 is a three-dimensional cross-sectional view of the present utility model;
[0012] Figure 2 is a side cross-sectional view of the present utility model;
[0013] Figure 3 is Figure 1 an enlarged view of part A in
[0014] In the figure: 1. Motor end cover; 11. External fine-pitch thread; 12. D-shaped process groove; 2. Motor housing; 21. Internal thread groove; 22. Embedded snap cover; 23. Head assembly clearance cavity; 3. Assembly follower engagement module; 31. Assembly convex seat; 311. U-shaped sliding cavity; 32. In-cavity movable ball; 33. Micro adapter; 34. Locking stud head; 35. Reset stud head; 351. Elastic connecting piece; 4. Rotary locking module; 41. Thread stripping limiting seat; 42. One-way check flip page; 5. Reset spring pin. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] Please refer to Figures 1-3The utility model provides the following technical solutions: a drum motor housing, including a motor end cover 1 and a motor housing 2, the motor end cover 1 is provided with an external fine pitch thread 11, the motor housing 2 is provided with an internal thread groove 21, the external fine pitch thread 11 and the internal thread groove 21 are threadedly connected, an assembly follower clamping module 3 and a rotary locking module 4 are provided between the motor end cover 1 and the motor housing 2, the assembly follower clamping module 3 and the rotary locking module 4 are used for limiting the rotation after the motor end cover 1 and the motor housing 2 are screwed together, the assembly follower clamping module 3 includes an assembly convex seat 31, an intracavity movable ball 32 and A micro-adapter buckle 33 and an assembly boss 31 are fixedly connected to the outer wall of the motor end cover 1. There are a plurality of movable balls 32 in the cavity, and the movable balls 32 in the cavity are fixedly connected through the micro-adapter buckle 33. A locking column head 34 and a reset column head 35 are slidably connected to the inner side of the assembly boss 31. One end of the reset column head 35 is in contact with the motor housing 2. The rotary locking module 4 includes a stripping limiting seat 41 and a one-way check flip page 42. The one-way check flip page 42 is rotatably connected to the inner side of the stripping limiting seat 41. One end of the locking column head 34 slides and extends to the inner side of the stripping limiting seat 41.
[0016] In an optional implementation of the present embodiment, the motor end cover 1 is further provided with two symmetrically distributed D-shaped process grooves 12, and the spiral patterns of the external fine pitch thread 11 and the internal thread groove 21 are oriented in the same direction as the rotation direction of the drum motor inside the motor casing 2, wherein the drum motor casing is integrally installed on the inner side of the motor casing 2, and when the drum motor drives the main shaft to rotate, an axial force is simultaneously applied to the motor casing 2, and the motor end cover 1 and the motor casing 2 are arranged so that the screwing direction during tightening is in the same direction as the rotation direction of the motor driving main shaft, so that when the main shaft is running, the threaded connection between the motor end cover 1 and the motor casing 2 becomes tighter and tighter.
[0017] In this embodiment, in order to solve the problem that the connection strength of the set screw cannot meet the requirements of high-frequency applications, the present invention completes the motor assembly of the electric drum by threading the outer fine pitch thread 11 provided on the motor end cover 1 and the inner thread groove 21 provided on the motor casing 2. In order to prevent the motor group installed on the inner side of the motor casing 2 from loosening between the motor end cover 1 and the motor casing 2 under the high-frequency rotation driving state, the spiral lines of the outer fine pitch thread 11 and the inner thread groove 21 are arranged in the same direction as the rotation direction of the drum motor inside the motor casing 2, so that when the motor is running, even if the motor end cover 1 rotates under the force of the drum motor rotating, it will only move synchronously with the running direction of the motor through the same direction setting of the outer fine pitch thread 11 and the inner thread groove 21, so that when the motor is running, the outer shell will be more tightened under the force of the drum motor rotating, thereby achieving the purpose of improving the connection stability of the motor end cover 1 and the motor casing 2.
[0018] In an optional implementation of the present embodiment, a U-shaped sliding cavity 311 is provided inside the assembly boss 31, one end of the locking stud 34 and the reset stud 35 are both slidably connected to the inside of the U-shaped sliding cavity 311, and an elastic connector 351 is fixedly connected between one end of the reset stud 35 and the inner wall of the U-shaped sliding cavity 311; wherein the U-shaped sliding cavity 311 is used to limit the sliding path of the movable ball 32 in the cavity, and when the motor end cover 1 is screwed and installed with the motor housing 2, the reset stud 35 is affected by the motor housing The shell 2 is squeezed, and the elastic connecting piece 351 expands under the action of pressure. Since the movable balls 32 in each cavity can rotate through the micro-adapter buckle 33 as the connecting axis point, the micro-adapter buckle 33 slides toward the locking column head 34, so that the locking column head 34 is squeezed by the micro-adapter buckle 33 and disengages from the inside of the U-shaped sliding cavity 311 and extends to the inside of the stripping limiting seat 41, and then automatically completes the locking when the motor end cover 1 and the motor housing 2 are screwed together, without the need for manual operation and debugging.
[0019] In an optional implementation of the present embodiment, an embedded card cover 22 is provided on the inner side of the motor casing 2, and a head assembly gap cavity 23 is reserved between the internal thread groove 21 and the embedded card cover 22, and the head assembly gap cavity 23 is used to provide an assembly space margin for the inner side of the motor casing 2; wherein, the embedded card cover 22 is used to isolate the motor assembly on the inner side of the motor casing 2, and the head assembly gap cavity 23 is used to reserve a space between the motor assembly and the motor end cover 1, so as to avoid direct squeezing of the motor assembly on the inner side of the motor casing 2 when the motor end cover 1 is screwed on.
[0020] In the present embodiment, in order to further ensure the stability of the motor end cover 1 and the motor casing 2 after being threadedly connected, the utility model also provides an assembly follow-up clamping module 3 and a rotary locking module 4 to prevent the motor end cover 1 and the motor casing 2 from disengagement after being threadedly connected. When the motor end cover 1 and the motor casing 2 are threadedly screwed together, the assembly boss 31 gradually moves toward the motor casing 2. At this time, the reset column head 35 located on the inner side of the assembly boss 31 is squeezed by the motor casing 2 and slides toward the inner side of the U-shaped sliding cavity 311, so that the movable ball 32 in the cavity inside the U-shaped sliding cavity 311 pushes the locking column head 34 outward after being squeezed by the reset column head 35, until the motor end cover 1 and the motor casing 2 are screwed into place, and the locking column head 34 moves the one-way non-return flip page 42 and enters the inner side of the stripping limiting seat 41. Since the one-way check flip page 42 can only rotate in one direction, a four-sided frame is formed between the stripping limiting seat 41 and the one-way check flip page 42, so that the locking column head 34 is restricted by the stripping limiting seat 41 and the one-way check flip page 42 and cannot continue to rotate, thereby preventing the motor end cover 1 and the motor housing 2 from rotating under the vibration of the motor, thereby ensuring the connection strength of the motor end cover 1 and the motor housing 2.
[0021] In an optional implementation of the present embodiment, a reset spring pin 5 is fixedly connected to one side of the outer wall of the motor housing 2, and the sliding output end of the reset spring pin 5 is fixedly connected to the stripping limiting seat 41. The reset spring pin 5 is used to adjust the limiting distance of the stripping limiting seat 41 to the locking column head 34.
[0022] In this embodiment, the reset spring pin 5 can be used to disengage the locking column head 34 from the inner side of the stripping limiting seat 41 when the motor end cover 1 and the motor casing 2 are disassembled. The reset spring pin 5 is composed of a sliding rod to form a receiving seat, and one end of the sliding rod extends to the inner side of the receiving seat. The stripping limiting seat 41 is lifted by arranging a spring between the sliding rod and the receiving seat. That is, when the motor end cover 1 and the motor casing 2 are twisted and disassembled, the stripping limiting seat 41 can be pressed down to cause the sliding rod to shrink toward the inner side of the receiving seat, so that the locking column head 34 is disengaged from the stripping limiting seat 41 and the inner side of the one-way non-return flip page 42, and the stripping limiting seat 41 and the one-way non-return flip page 42 release the positioning of the locking column head 34, so that the motor end cover 1 and the motor casing 2 can continue to be twisted and disassembled.
[0023] The working principle and use process of the utility model are as follows: the motor end cover 1 is screwed by holding the D-shaped process groove 12, and the motor end cover 1 and the motor housing 2 are connected by the threaded fit between the screwing outer fine pitch thread 11 set on the motor end cover 1 and the inner thread groove 21 set on the motor housing 2. When the motor end cover 1 and the motor housing 2 are screwed together, the assembly convex seat 31 gradually moves toward the motor housing 2, so that the reset column head 35 located on the inner side of the assembly convex seat 31 is squeezed by the motor housing 2, and the movable ball 32 in the cavity is moved toward the locking column head 34. Pushing causes the locking stud 34 to move the one-way check flip page 42 and enter the inner side of the stripping limiting seat 41. While limiting the rotation direction of the motor end cover 1 and the motor housing 2 by the locking stud 34 and the stripping limiting seat 41, since the spiral patterns of the screwed external fine pitch thread 11 and the internal thread groove 21 are arranged in the same direction as the rotation direction of the electric drum, when the motor is running, the motor end cover 1 and the motor housing 2 will be tightened under the force of the drum motor rotating, thereby ensuring the connection stability of the motor end cover 1 and the motor housing 2 when the drum motor is running at high frequency.
[0024] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.
Claims
1. A drum motor housing, comprising a motor end cover (1) and a motor casing (2), characterized in that: The motor end cover (1) is provided with an external fine pitch thread (11), the motor housing (2) is provided with an internal thread groove (21), the external fine pitch thread (11) and the internal thread groove (21) are threadedly connected, an assembly follower clamping module (3) and a rotary locking module (4) are provided between the motor end cover (1) and the motor housing (2), the assembly follower clamping module (3) and the rotary locking module (4) are used to limit the rotation of the motor end cover (1) and the motor housing (2) after being threadedly assembled, the assembly follower clamping module (3) comprises an assembly boss (31), an intracavity movable ball (32) and a micro transfer buckle (33), the assembly boss (31) is fixed Connected to the outer wall of the motor end cover (1), the number of movable balls (32) in the cavity is a plurality, and the plurality of movable balls (32) in the cavity are fixedly connected via the micro-adapter buckle (33); a locking column head (34) and a reset column head (35) are slidably connected to the inner side of the assembly convex seat (31); one end of the reset column head (35) is in contact with the motor housing (2); the rotary locking module (4) comprises a stripping limiting seat (41) and a one-way non-return flip page (42); the one-way non-return flip page (42) is rotatably connected to the inner side of the stripping limiting seat (41); one end of the locking column head (34) slidably extends to the inner side of the stripping limiting seat (41).
2. The drum motor housing according to claim 1, wherein: A U-shaped sliding cavity (311) is provided inside the assembly convex seat (31), one end of the locking column head (34) and one end of the reset column head (35) are both slidably connected to the inside of the U-shaped sliding cavity (311), and an elastic connecting piece (351) is fixedly connected between one end of the reset column head (35) and the inner wall of the U-shaped sliding cavity (311).
3. A drum motor housing according to claim 1, characterized in that: An embedded card cover (22) is provided inside the motor housing (2), and a head assembly gap cavity (23) is reserved between the internal thread groove (21) and the embedded card cover (22), wherein the head assembly gap cavity (23) is used to provide an assembly space inside the motor housing (2).
4. A drum motor housing according to claim 1, characterized in that: The motor end cover (1) is also provided with two symmetrically distributed D-shaped process grooves (12), and the spiral patterns of the external fine pitch thread (11) and the internal thread groove (21) are oriented in the same direction as the rotation direction of the drum motor inside the motor housing (2).
5. A drum motor housing according to claim 1, characterized in that: A reset spring pin (5) is fixedly connected to one side of the outer wall of the motor housing (2); a sliding output end of the reset spring pin (5) is fixedly connected to the stripping limiting seat (41); and the reset spring pin (5) is used to adjust the limiting distance of the stripping limiting seat (41) to the locking column head (34).