Micromotor fixing structure and gear box adopting same

Abstract

The utility model discloses a micromotor fixing structure and a gear box adopting the same. Belongs to the technical field of gearboxes. According to the technical key points, the device comprises a box body, the box body is provided with a motor placement chamber matched with the outer contour of a motor, and the motor is arranged in the motor placement chamber; a mounting plate is fixed at the front end of the motor, a fixing frame matched with the mounting plate is fixed in the box body on the side edge of the motor placing chamber, and when the mounting plate is located in the fixing frame, the motor main body is located in the motor placing chamber; a box cover matched with the box body is arranged on the box body, a motor positioning chamber matched with the motor placing chamber is arranged at the bottom in the box cover, and when the box cover and the box body are assembled, the motor placing chamber and the motor positioning chamber are matched to accommodate a motor main body; the utility model aims to provide the micromotor fixing structure which is compact in structure and good in using effect and the gear box adopting the micromotor fixing structure. The utility model discloses a water valve switch.

Description

Technical Field

[0001] The utility model relates to a fixing structure, more specifically, to a micro motor fixing structure. The utility model also relates to a gear box adopting the structure. Background Art

[0002] There are many ways to install and fix motors. Mechanical support fixation, flange bolt fixation, screw fixation, clamp fixation, wall mounting, base mounting, hanging mounting, horizontal mounting, etc. These installation and fixing methods are generally used in environments with relatively standardized power and volume space. However, for micro motors with a power of only a few watts and installed for special purposes, the above fixing methods are not necessarily the best and most reliable, and sometimes they will affect the performance of the motor in the product structure.

[0003] In addition, the gearboxes currently used in water valve switches all use micro motors with high consistency requirements for various performance indicators, and these micro motors are generally installed and fixed in the traditional way mentioned above. In actual use, it is found that the traditional fixing method will exert pressure on the surface of the motor, which will affect the internal loss of the motor, and it is easy to cause minor blockages (unsmoothness), poor gear meshing transmission and other problems, which will affect the current, power, output torque, speed and other performance of the motor under no-load and load, resulting in product technology and quality requirements not meeting the standards. Utility Model Content

[0004] The first object of the utility model is to provide a micro-motor fixing structure with compact structure and good use effect in view of the above-mentioned deficiencies of the prior art, which combines the advantages of horizontal installation, wall-mounted installation, clamping fixation, screw fixation and mechanical support installation.

[0005] The latter object of the utility model is to provide a gear box adopting the above structure.

[0006] The technical solution of the utility model is implemented as follows: a micro motor fixing structure comprises a box body, the box body is provided with a motor placement chamber adapted to the outer contour of the motor, and a motor assembly is arranged in the motor placement chamber.

[0007] A mounting plate is fixed at the front end of the motor assembly, and a fixing frame matched with the mounting plate is fixed in the box body at the side of the motor placement chamber. When the mounting plate is located in the fixing frame, the main body of the motor assembly is located in the motor placement chamber.

[0008] A box cover that cooperates with each other is arranged on the box body, and a motor positioning chamber that cooperates with the motor placement chamber is arranged at the bottom of the box cover. When the box cover and the box body are assembled, the motor placement chamber and the motor positioning chamber cooperate to accommodate the motor component body.

[0009] In the above-mentioned micro-motor fixing structure, an arc-shaped portion is formed at the bottom of the mounting plate, and an arc-shaped step matching the arc-shaped portion is arranged at the front end of the motor placement chamber.

[0010] In the above-mentioned micro-motor fixing structure, a boss is formed at the front end of the motor assembly, and a positioning notch matched with the boss is arranged on the box body at the side of the motor placement chamber.

[0011] In the above-mentioned micro-motor fixing structure, the fixing frame includes two symmetrically arranged columns, and slots are formed on opposite end faces of the columns, and the mounting plate is inserted into the slots.

[0012] The latter technical solution of the utility model is implemented as follows: a gear box using the above structure includes a box body and a box cover that cooperate with each other, a plurality of fixed shafts are arranged between the box body and the box cover on the side of the motor placement room, and a first reduction gear is rotatably connected to each fixed shaft, and each first reduction gear is meshed in sequence.

[0013] A worm is fixed on the power output shaft of the motor assembly, an output shaft is rotatably connected between the box body and the box cover, a second reduction gear is fixedly connected to the output shaft, and two ends of the gear set formed by the first reduction gears meshing in sequence are respectively meshed with the worm and the second reduction gear.

[0014] In the above-mentioned micro-motor fixing structure, the box body and the box cover are respectively provided with bearings connected to the output shaft.

[0015] In the above-mentioned micro-motor fixing structure, an output arm is arranged on the box cover, and the output shaft is connected to the output arm in linkage.

[0016] After the utility model adopts the above structure, the main body of the motor assembly is positioned by setting a motor placement chamber and a motor positioning chamber that cooperate with each other between the box body and the box cover. At the same time, the motor assembly is positioned by fixing a mounting plate on the motor assembly and then cooperating with the mounting plate and the fixing frame in the box body. In this way, there is no component pressing on the surface of the motor, and the force is mainly applied through the mounting plate, which well solves the problem of poor performance such as current, power, output torque, speed, and noise caused by the traditional installation and fixation of micro motors, poor gear meshing transmission, and so on. It well solves the problem of inconvenient installation and fixation of motors in compact and narrow spaces, and can make the product appearance smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0018] Figure 1 It is a schematic diagram of the exploded structure of the fixed structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a box in the fixed structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the exploded structure of the motor assembly in the fixed structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the assembly structure of the gearbox of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal assembly structure of the gearbox of the utility model;

[0023] Figure 6 It is a schematic diagram of the exploded structure of the gear box of the utility model.

[0024] In the figure: 1. box body; 1a. positioning notch; 2. motor placement chamber; 2a. arc-shaped step; 3. motor assembly; 3a. boss; 4. mounting plate; 4a. arc-shaped portion; 5. fixing frame; 5a. column; 5b. slot; 6. box cover; 6a. motor positioning chamber; 7. fixed shaft; 8. first reduction gear; 9. worm; 10. output shaft; 11. second reduction gear; 12. bearing; 13. output arm. DETAILED DESCRIPTION

[0025] See also Figures 1 to 3 As shown, a micro motor fixing structure of the utility model comprises a box body 1 , on which a motor placement chamber 2 adapted to the outer contour of the motor is arranged, and in which a motor assembly 3 is arranged.

[0026] A mounting plate 4 is fixed to the front end of the motor assembly 3. Preferably, the mounting plate is fixed to the front end of the motor by screws. A fixing frame 5 matching the mounting plate 4 is fixed in the box body 1 on the side of the motor placement chamber 2. When the mounting plate 4 is located in the fixing frame 5, the main body of the motor assembly 3 is located in the motor placement chamber 2. The motor assembly is mainly composed of a motor and a rectifier PCB board.

[0027] A box cover 6 is provided on the box body 1, and a motor positioning chamber 6a is provided at the bottom of the box cover 6 to match the motor placement chamber 2. When the box cover 6 and the box body 1 are assembled, the motor placement chamber 2 and the motor positioning chamber 6a cooperate to accommodate the main body of the motor assembly 3. The cavity formed by the motor placement chamber and the motor positioning chamber is mainly used to accommodate the motor assembly, rather than clamping and fixing. The motor assembly is fixed by the fixing frame and the mounting plate.

[0028] Preferably, an arcuate portion 4a is formed at the bottom of the mounting plate 4, and an arcuate step 2a matching the arcuate portion 4a is provided at the front end of the motor placement chamber 2. The arcuate portion and the arcuate step cooperate to make the motor installation more accurate and more stable.

[0029] Further preferably, a boss 3a is formed at the front end of the motor assembly 3, and a positioning notch 1a matching the boss 3a is provided on the box body 1 at the side of the motor placement chamber 2. The matching of the boss and the positioning notch is also to make the motor installation more accurate and stable.

[0030] In this embodiment, the fixing frame 5 includes two symmetrically arranged columns 5a, and slots 5b are formed on the opposite end faces of the columns 5a, and the mounting plate 4 is inserted into the slots 5b. The mounting plate is installed by plugging, which makes the assembly of the motor convenient and quick.

[0031] See also Figures 4 to 6 As shown, a gearbox of the utility model adopting the above structure includes a box body 1 and a box cover 6 that cooperate with each other, and a plurality of fixed shafts 7 are arranged between the box body 1 and the box cover 6 on the side of the motor placement chamber 2, and a first reduction gear 8 is rotatably connected to each fixed shaft 7, and each first reduction gear 8 is meshed in sequence.

[0032] A worm 9 is fixed on the power output shaft of the motor assembly 3, an output shaft 10 is rotatably connected between the box body 1 and the box cover 6, a second reduction gear 11 is fixedly connected to the output shaft 10, and both ends of the gear set formed by the first reduction gears 8 meshing in sequence are respectively meshed with the worm 9 and the second reduction gear 11.

[0033] Preferably, the box body 1 and the box cover 6 are respectively provided with bearings 12 connected to the output shaft 10. The bearings can make the output shaft rotate more smoothly and stably. Of course, according to actual needs, the bearings can also be replaced by other components in the art as long as the corresponding functions can be achieved.

[0034] Further preferably, an output arm 13 is provided on the box cover 6, and the output shaft 10 is connected and linked to the output arm 13. The output arm converts the circular motion of the output shaft into linear motion, and can be well connected and linked with an external water valve switch to realize the control of the water valve switch.

[0035] The above embodiments are preferred implementation modes of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the relevant technical field, if they do not depart from the scope of the technical features of the present invention, can make equivalent embodiments by partial changes or modifications to the technical contents disclosed in the present invention, and they still fall within the scope of the technical features of the present invention without departing from the technical features of the present invention.

Claims

1. A micromotor fixing structure, comprising a box (1), characterized in that: The box body (1) is provided with a motor placement chamber (2) adapted to the outer contour of the motor, and a motor assembly (3) is arranged in the motor placement chamber (2); A mounting plate (4) is fixed at the front end of the motor assembly (3), and a fixing frame (5) matching the mounting plate (4) is fixed in the box body (1) at the side of the motor placement chamber (2); when the mounting plate (4) is located in the fixing frame (5), the main body of the motor assembly (3) is located in the motor placement chamber (2); A box cover (6) that cooperates with each other is arranged on the box body (1), and a motor positioning chamber (6a) that cooperates with the motor placement chamber (2) is arranged at the bottom of the box cover (6). When the box cover (6) and the box body (1) are assembled, the motor placement chamber (2) and the motor positioning chamber (6a) cooperate to accommodate the main body of the motor assembly (3).

2. A micromotor fixing structure according to claim 1, characterized in that: The bottom of the mounting plate (4) is formed with an arc-shaped portion (4a), and the front end of the motor placement chamber (2) is provided with an arc-shaped step (2a) that matches the arc-shaped portion (4a).

3. A micromotor fixing structure according to claim 1, characterized in that: The front end of the motor assembly (3) is formed with a boss (3a), and a positioning notch (1a) matching the boss (3a) is provided on the box body (1) on the side of the motor placement chamber (2).

4. The micromotor fixing structure according to claim 1, characterized in that: The fixing frame (5) comprises two symmetrically arranged columns (5a), and slots (5b) are formed on opposite end faces of the columns (5a), and the mounting plate (4) is inserted into the slots (5b).

5. A gear box adopting the structure of any one of claims 1 to 4, comprising a box body (1) and a box cover (6) that cooperate with each other, characterized in that: A plurality of fixed shafts (7) are arranged between the box body (1) and the box cover (6) on the side of the motor placement chamber (2), and a first reduction gear (8) is rotatably connected to each fixed shaft (7), and each first reduction gear (8) is meshed in sequence; A worm (9) is fixed on the power output shaft of the motor assembly (3); an output shaft (10) is rotatably connected between the box body (1) and the box cover (6); a second reduction gear (11) is fixedly connected to the output shaft (10); and two ends of a gear set formed by the first reduction gears (8) meshing in sequence are respectively meshed with the worm (9) and the second reduction gear (11).

6. A gear box according to claim 5, characterized in that: The box body (1) and the box cover (6) are respectively provided with bearings (12) connected to the output shaft (10).

7. A gear box according to claim 5, characterized in that: An output arm (13) is provided on the box cover (6), and the output shaft (10) is connected to the output arm (13) in a linkage manner.

Images