A quasi-hyperbolic wheelchair deceleration motor

Abstract

The utility model provides a kind of quasi double-curve wheelchair reduction motor, it is related to the field of reduction motor, including assembly disc and reduction gear casing;The left side of assembly disc is equipped with rectangle through slot, and the right side of assembly disc is equipped with driving motor, and the motor shaft of driving motor is equipped with input rotating shaft;The outer side of the cylindrical structure of reduction gear casing is nested with sliding cylinder and is rotatably connected with rotating cylinder, and the right end cylinder mouth part of the cylindrical structure of reduction gear casing is welded with mounting seat, and the inner side of the rectangle through slot of mounting seat is embedded with tongue depressor;Through the setting of rotating cylinder, sliding cylinder, tongue depressor and assembly disc, the dismounting operation of driving motor and reduction gear casing is simplified, the production assembly efficiency and the later maintenance dismounting maintenance efficiency of reduction motor are improved, and the problem that the maintenance dismounting operation of motor component and reduction gear is complicated due to the assembly and dismounting of motor component and reduction gear by using multiple bolt screwing mode in traditional wheelchair reduction motor is solved.

Description

Technical Field

[0001] This utility model belongs to the field of geared motors, and more specifically, it relates to a quasi-hyperbolic wheelchair geared motor. Background Technology

[0002] A wheelchair geared motor is a drive component integrating a reducer and a motor. As the core component driving wheelchair movement, it precisely controls the wheelchair's speed, thus adapting to the low-speed driving needs of the wheelchair. Currently, in the production, assembly, and subsequent maintenance of wheelchair geared motors, the assembly and disassembly of the motor component and the reducer are essential steps. In existing technologies, multiple sets of bolts are typically inserted into the flange mounting holes of the motor component, and then these bolts are sequentially screwed into the pre-set threaded holes on the reducer housing. Therefore, whether connecting or disassembling the motor component and reducer, multiple sets of bolts must be sequentially tightened into the pre-set threaded holes, making the assembly and disassembly of the reducer and motor cumbersome, consuming a significant amount of assembly and subsequent maintenance time, and severely reducing the efficiency of disassembly and maintenance of the motor component and reducer. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides a quasi-hyperbolic wheelchair geared motor, which solves the problem of cumbersome maintenance and disassembly operations of the motor components and reducer caused by the use of multiple sets of bolts for assembly and disassembly in traditional wheelchair geared motors.

[0004] This utility model provides a quasi-hyperbolic wheelchair geared motor, including a housing cover; a flange seat is welded to the front side of the housing cover, and a reducer housing is bolted to the rear side of the housing cover; a mounting base is welded to the right end of the reducer housing; it also includes an assembly plate and an output shaft; the left side of the assembly plate has four sets of rectangular through slots, and a drive motor is mounted on the right side of the assembly plate; an input shaft is mounted on the motor shaft of the drive motor; the outer side of the input shaft is rotatably connected to the reducer housing, and an arc-shaped bevel gear is welded to the left end of the input shaft; the outer side of the output shaft is rotatably connected to the reducer housing near the front and rear ends, and a housing cover is rotatably connected to the outer side of the output shaft near the front end; a quasi-hyperbolic gear is welded to the outer side of the output shaft.

[0005] Furthermore, the right side of the reducer housing has a cylindrical structure that runs through the left and right sides. A sliding cylinder is nested on the outer side of the cylindrical structure of the reducer housing. A rotating cylinder is rotatably connected to the outer side of the cylindrical structure of the reducer housing near the right end. The outer side of the cylindrical structure of the reducer housing has six sets of elongated grooves. A mounting base is welded to the right end of the cylindrical structure of the reducer housing. The right side of the mounting base has four sets of rectangular through slots. The rectangular through slots are arranged in a circular array around the mounting base. The four sets of rectangular through slots of the mounting base are opposite to the rectangular through slots of the assembly plate. A guide rod is welded in the rectangular through slot of the mounting base. A pressure tongue block is embedded in the inner side of the rectangular through slot of the mounting base. The pressure tongue block has a through hole, and the guide rod is inserted into the through hole of the pressure tongue block.

[0006] Furthermore, the number of the tongue depressor blocks is four sets, and each set of tongue depressor blocks has an L-shaped structure. The bent part of the L-shaped structure of the tongue depressor block has a sloping structure. The tongue depressor blocks are inserted into the rectangular through groove of the assembly plate. The left end of the L-shaped structure of the tongue depressor block is provided with a cuboid protrusion plate, and the cuboid protrusion plate of the tongue depressor block is provided with a sloping through groove.

[0007] Furthermore, the outer side of the slide cylinder is provided with a threaded structure, and the inner side of the slide cylinder is provided with six sets of cuboid protrusions. The cuboid protrusions of the slide cylinder are embedded in the six sets of long grooves on the outer side of the cylindrical structure of the reducer housing. The right end of the slide cylinder is provided with four sets of open grooves. A push rod is welded to the inner side of each set of open grooves of the slide cylinder. The push rod is inserted into the oblique through groove of the pressure tongue block.

[0008] Furthermore, the rotating cylinder is a circular cylindrical structure that runs through the left and right sides. The inner side of the circular cylindrical structure of the rotating cylinder is provided with a threaded structure, and the outer side of the sliding cylinder is threadedly engaged with the inner side of the rotating cylinder at the threaded structure.

[0009] Furthermore, the outer surface of the quasi-hyperbolic gear is meshed with an arc-shaped bevel gear.

[0010] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, a threaded transmission mechanism is formed by the inner thread of the rotating drum and the outer thread of the slide drum. This mechanism allows the rotating drum to drive the push rods welded to the four sets of open grooves on the right end of the slide drum to simultaneously push the inclined through groove walls of the four sets of pressure tongue blocks. This causes the pressure tongue blocks to move centrifugally or centripetally along the guide rods, thus realizing the clamping and loosening of the assembly plate by the inclined structure of the four sets of pressure tongue blocks in conjunction with the mounting base. This eliminates the cumbersome operation of tightening multiple bolts in sequence, allowing the drive motor and reducer housing to be disassembled and assembled simply by rotating the rotating drum. This greatly shortens the disassembly and assembly time and improves the production and assembly efficiency of the geared motor as well as the efficiency of subsequent maintenance and repair. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the left side view of this utility model.

[0013] Figure 3 This is a front view structural diagram of this utility model.

[0014] Figure 4 This is a cross-sectional structural diagram of the present invention.

[0015] Figure 5 This is the utility model Figure 4 Enlarged structural diagram of part A in the middle.

[0016] Figure 6 This is the utility model Figure 4 Enlarged structural diagram of part B in the middle.

[0017] Figure 7 This is an exploded structural diagram of the present invention.

[0018] Figure 8 This is the utility model Figure 7 Enlarged structural diagram of part C in the middle.

[0019] Reference numerals in the attached drawings: 1. Drive motor; 2. Assembly plate; 3. Mounting base; 4. Flange base; 5. Output shaft; 6. Housing cover; 7. Reducer housing; 8. Rotary drum; 9. Quasi-hypoid gear; 10. Arc bevel gear; 11. Input shaft; 12. Guide rod; 13. Pressure tongue block; 14. Push rod; 15. Slide cylinder. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] like Figures 1-8 As shown, this utility model provides a quasi-hyperbolic wheelchair geared motor, including a housing cover 6; a flange seat 4 is welded to the front side of the housing cover 6, and a reducer housing 7 is bolted to the rear side of the housing cover 6; a mounting seat 3 is welded to the right end of the reducer housing 7; it also includes an assembly plate 2 and an output shaft 5; four sets of rectangular through slots are provided on the left side of the assembly plate 2, and a drive motor 1 is installed on the right side of the assembly plate 2; an input shaft 11 is installed on the motor shaft of the drive motor 1; the reducer housing 7 is rotatably connected to the outer side of the input shaft 11, and an arc-shaped bevel gear 10 is welded to the left end of the input shaft 11; the reducer housing 7 is rotatably connected to the outer side of the output shaft 5 near the front and rear ends, the housing cover 6 is rotatably connected to the outer side of the output shaft 5 near the front end, and a quasi-hyperbolic gear 9 is welded to the outer side of the output shaft 5.

[0022] In this embodiment of the present invention, the right side of the reducer housing 7 is provided with a cylindrical structure that extends through the left and right sides. A sliding cylinder 15 is nested and slidably attached to the outer side of the cylindrical structure of the reducer housing 7. A rotating cylinder 8 is rotatably connected to the outer side of the cylindrical structure of the reducer housing 7 near the right end. The outer side of the cylindrical structure of the reducer housing 7 is provided with six sets of elongated grooves. A mounting base 3 is welded to the right end of the cylindrical structure of the reducer housing 7. The right side of the mounting base 3 is provided with four sets of rectangular through slots. The rectangular through slots surround the mounting base 3 in a... The four rectangular slots of the mounting base 3 are arranged in a ring array and are opposite to the rectangular slots of the assembly plate 2. Guide rods 12 are welded inside the rectangular slots of the mounting base 3. A pressure tongue block 13 is embedded in the inner side of the rectangular slot of the mounting base 3. The pressure tongue block 13 has a through hole. The guide rods 12 are inserted into the through holes of the pressure tongue block 13. The guide rods 12 cooperate with the groove wall of the rectangular slot of the mounting base 3 to support the centripetal or centrifugal movement of the pressure tongue block 13, ensuring that the inclined structure of the pressure tongue block 13 stably pushes the right edge of the groove of the rectangular slot of the assembly plate 2.

[0023] In this embodiment of the utility model, there are four sets of tongue-pressing blocks 13. Each set of tongue-pressing blocks 13 has an L-shaped structure. The bent part of the L-shaped structure of the tongue-pressing block 13 is a slanted structure. The tongue-pressing blocks 13 are inserted into the rectangular through groove of the assembly plate 2. When the four sets of tongue-pressing blocks 13 move centrifugally along the guide rod 12, the slanted structure of the four sets of tongue-pressing blocks 13 pushes the right edge of the rectangular through groove of the assembly plate 2, so that the left side of the assembly plate 2 is pressed tightly against the right side of the mounting base 3, ensuring that the assembly plate 2 and the mounting base 3 are stably connected. The left end of the L-shaped structure of the tongue-pressing block 13 is provided with a cuboid protrusion plate, and the cuboid protrusion plate of the tongue-pressing block 13 is provided with a slanted through groove.

[0024] In this embodiment of the utility model, the outer side of the slide cylinder 15 is provided with a threaded structure, and the inner side of the slide cylinder 15 is provided with six sets of cuboid protrusions. The cuboid protrusions of the slide cylinder 15 are embedded in the six sets of long grooves on the outer side of the cylindrical structure of the reducer housing 7. The long grooves of the reducer housing 7 limit the rotation of the slide cylinder 15 through the cuboid protrusions of the slide cylinder 15, so as to avoid the meshing friction between the inner side thread of the rotating cylinder 8 and the outer side thread of the slide cylinder 15 causing the slide cylinder 15 to rotate synchronously on the outer side of the cylindrical structure of the reducer housing 7, thus ensuring the thread meshing transmission efficiency between the rotating cylinder 8 and the slide cylinder 15. The right end of the slide cylinder 15 is provided with four sets of open grooves. A push rod 14 is welded to the inner side of each set of open grooves of the slide cylinder 15. The push rod 14 is inserted into the oblique through groove of the pressure tongue block 13.

[0025] In this embodiment of the utility model, the rotating cylinder 8 is a circular cylindrical structure that runs through the left and right sides. The inner side of the circular cylindrical structure of the rotating cylinder 8 is provided with a threaded structure. The outer side of the sliding cylinder 15 is threadedly engaged with the inner side of the rotating cylinder 8. During the rotation of the rotating cylinder 8 on the outer side of the cylindrical structure of the reducer housing 7, the rotating cylinder 8 drives the sliding cylinder 15 to move to the left or right along the long groove of the reducer housing 7. This causes the push rods 14 in the four sets of open grooves of the sliding cylinder 15 to push the groove wall of the inclined through groove of the four sets of pressure tongue blocks 13 simultaneously. This allows the four sets of push rods 14 to drive the four sets of pressure tongue blocks 13 to move centrifugally or centripetally along the four sets of guide rods 12, thereby completing the work of quickly clamping and fixing the assembly plate 2 and the mounting seat 3 with the four sets of pressure tongue blocks 13, which greatly improves the efficiency of disassembling and assembling the drive motor 1 and the reducer housing 7.

[0026] In this embodiment of the invention, a quasi-hyperbolic gear 9 is meshed with an arc-shaped bevel gear 10 on its outer side. During the process of the drive motor 1 driving the arc-shaped bevel gear 10 to rotate at high speed through the input shaft 11, since the number of teeth of the quasi-hyperbolic gear 9 is greater than the number of teeth of the arc-shaped bevel gear 10, the arc-shaped bevel gear 10 drives the quasi-hyperbolic gear 9 meshed with on its outer side to rotate at a reduced speed. The quasi-hyperbolic gear 9 then drives the output shaft 5 to rotate at a low speed. Since the tooth line of the quasi-hyperbolic gear 9 is in the shape of a hyperbola, the meshing process between the arc-shaped bevel gear 10 and the quasi-hyperbolic gear 9 is a progressive contact, which can effectively buffer the impact load during the transmission process, reduce the vibration during gear meshing, reduce the wear rate of the gear tooth surface, and extend the service life of the geared motor.

[0027] Specific usage and function of this utility model embodiment: In assembling the drive motor 1 and the reducer housing 7, the rectangular slot of the assembly disc 2 is first aligned with the rectangular slot structure of the mounting base 3. The rotating drum 8 is then manually rotated. Since the inner thread of the rotating drum 8 is threadedly connected to the outer thread structure of the slide cylinder 15, and the long convex strip on the inner side of the slide cylinder 15 is embedded in the long groove of the reducer housing 7, the rotating drum 8 drives the slide cylinder 15 to move to the right along the long groove of the reducer housing 7. The push rods 14, welded to the four sets of open grooves of the slide cylinder 15, respectively push the convex plates of the four sets of pressure tongue blocks 13 obliquely towards the groove wall. At this time, the four sets of pressure tongue blocks 13 move centrifugally along the four sets of rectangular slots and the four sets of guide rods 12 of the mounting base 3. The oblique surface structure of the L-shaped bent part of the pressure tongue block 13 pushes the right side opening of the rectangular slot of the assembly disc 2. At this time, the four sets of pressure tongue blocks 13 push the assembly disc 2 tightly against the right side of the mounting base 3, thus... After assembling the drive motor 1 and the reducer housing 7, when disassembling the drive motor 1 and the reducer housing 7, manually rotate the rotating drum 8 in the reverse direction. The rotating drum 8 drives the sliding drum 15 to move to the left along the long groove of the reducer housing 7. The push rods 14 welded to the four sets of open grooves of the sliding drum 15 push the convex plates of the four sets of pressure tongue blocks 13 at the groove wall of the inclined through groove. At this time, the four sets of pressure tongue blocks 13 move towards the center along the four sets of rectangular through grooves of the mounting base 3 and the four sets of guide rods 12. The inclined structure of the L-shaped structure of the pressure tongue block 13 is separated from the right groove opening of the rectangular through groove of the assembly plate 2. At this time, the four sets of pressure tongue blocks 13 and the mounting base 3 loosen the assembly plate 2 until the L-shaped structure of the four sets of pressure tongue blocks 13 is aligned with the assembly plate 2. Then, the assembly plate 2 bolted to the drive motor 1 can be removed from the mounting base 3, thus completing the disassembly of the drive motor 1 and the reducer housing 7.

[0028] All the above components are installed, connected, or set up using common mechanical methods, such as welding, threaded connections, and screw connections. Furthermore, the specific structure, model, and coefficient indicators of all components are based on their own technologies, and any method that achieves the desired effect can be implemented. The drive motor 1 and hypoid gear 9 mentioned above are common commercially available components; upon purchase and use, simply follow the instruction manual provided with the purchase, and therefore will not be elaborated upon further.

[0029] The technical solution of this utility model is not limited to the scope of the embodiments of this utility model. All technical contents not described in detail in this utility model are known technologies.

Claims

1. A quasi-hyperbolic wheelchair geared motor, comprising a housing cover (6); a flange seat (4) is welded to the front side of the housing cover (6), and a gearbox housing (7) is bolted to the rear side of the housing cover (6); a mounting seat (3) is welded to the right end of the gearbox housing (7); characterized in that: It also includes an assembly plate (2) and an output shaft (5); the left side of the assembly plate (2) is provided with four sets of rectangular through slots, the right side of the assembly plate (2) is equipped with a drive motor (1), and the motor shaft of the drive motor (1) is equipped with an input shaft (11); the outer side of the input shaft (11) is rotatably connected to a reducer housing (7), and the left end of the input shaft (11) is welded with an arc bevel gear (10); the outer side of the output shaft (5) is rotatably connected to a reducer housing (7) near the front and rear ends, the outer side of the output shaft (5) is rotatably connected to a cover (6) near the front end, and the outer side of the output shaft (5) is welded with a quasi-hyperbolic gear (9).

2. The quasi-hyperbolic wheelchair geared motor as described in claim 1, characterized in that: The right side of the reducer housing (7) is provided with a cylindrical structure that runs through the left and right sides. A sliding cylinder (15) is nested on the outer side of the cylindrical structure of the reducer housing (7). A rotating cylinder (8) is rotatably connected to the outer side of the cylindrical structure of the reducer housing (7) near the right end. The outer side of the cylindrical structure of the reducer housing (7) is provided with six sets of long grooves. A mounting seat (3) is welded to the right end of the cylindrical structure of the reducer housing (7). The right side of the mounting seat (3) is provided with four sets of rectangular through slots. The rectangular through slots are arranged in a ring array around the mounting seat (3). The four sets of rectangular through slots of the mounting seat (3) are opposite to the rectangular through slots of the assembly plate (2). A guide rod (12) is welded in the rectangular through slot of the mounting seat (3). A pressure tongue block (13) is embedded in the inner side of the rectangular through slot of the mounting seat (3). A through hole is provided on the pressure tongue block (13). The guide rod (12) is inserted into the through hole of the pressure tongue block (13).

3. The quasi-hyperbolic wheelchair geared motor as described in claim 2, characterized in that: The number of the tongue depressor (13) is four sets. Each set of tongue depressor (13) has an L-shaped structure. The bent part of the L-shaped structure of the tongue depressor (13) is a sloping structure. The tongue depressor (13) is inserted into the rectangular through groove of the assembly plate (2). The left end of the L-shaped structure of the tongue depressor (13) is provided with a cuboid protrusion plate. The cuboid protrusion plate of the tongue depressor (13) is provided with a sloping through groove.

4. The quasi-hyperbolic wheelchair geared motor as described in claim 2, characterized in that: The outer side of the slide cylinder (15) is provided with a threaded structure, and the inner side of the slide cylinder (15) is provided with six sets of cuboid protrusions. The cuboid protrusions of the slide cylinder (15) are embedded in the six sets of long grooves on the outer side of the cylindrical structure of the reducer housing (7). The right end of the slide cylinder (15) is provided with four sets of open grooves. A push rod (14) is welded to the inner side of each set of open grooves of the slide cylinder (15). The push rod (14) is inserted into the oblique through groove of the pressure tongue block (13).

5. The quasi-hyperbolic wheelchair geared motor as described in claim 2, characterized in that: The rotating cylinder (8) is a circular cylindrical structure that runs through the left and right sides. The inner side of the circular cylindrical structure of the rotating cylinder (8) is provided with a threaded structure, and the outer side of the sliding cylinder (15) is threadedly engaged with the inner side of the rotating cylinder (8) at the threaded structure.

6. The quasi-hyperbolic wheelchair geared motor as described in claim 1, characterized in that: The outer side of the quasi-hyperbolic gear (9) is meshed with an arc-shaped bevel gear (10).

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