Gear motor

Abstract

The utility model discloses a gear motor which comprises a motor and a reduction gearbox, the motor comprises a motor body and a pre-reduction assembly, and the pre-reduction assembly is arranged between the motor and the reduction gearbox of the gear motor. The pre-deceleration assembly comprises a shell, a first transmission rod, a first transmission gear, a second transmission gear, a second transmission rod and a third transmission gear, the output shaft drives the first transmission rod to rotate through the first transmission gear, and the first transmission rod drives the second transmission rod to rotate through cooperation of the second transmission gear and the third transmission gear; therefore, the input shaft is in transmission connection with the output shaft. Due to the arrangement of the first transmission rod and the second transmission rod, speed reduction is performed in advance, the speed reduction ratio is increased, the space is reasonably utilized, the size of the speed reduction motor is reduced, the overall occupied space of the speed reduction motor is reduced, and the speed reduction motor can adapt to more devices with small spaces.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a reduction motor. Background Art

[0002] A reduction motor is an integration of a reducer and a motor. This integration is also commonly called a gear motor or gear motor. It is usually integrated and assembled by a professional reducer manufacturer and supplied as a complete set. Gear motors are widely used in the steel industry, machinery industry, etc.

[0003] With the advancement of technology, in the prior art, there is a worm gear reduction motor with a worm gear structure between the reducer and the motor, which can achieve a large reduction ratio, low speed, and high torque transmission. However, the above worm gear structure can only perform one-stage reduction, and the reduction ratio cannot be further increased, which cannot meet the actual needs of customers. Utility Model Content

[0004] The utility model aims to provide a reduction motor to solve the problem that the worm gear structure can only perform one-stage reduction.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a reduction motor, comprising a motor and a reduction box, wherein the motor comprises a motor body and a pre-reduction assembly, wherein the pre-reduction assembly comprises a housing, a first transmission rod, a first transmission gear, a second transmission gear, a second transmission rod and a third transmission gear;

[0007] The right end of the reduction box is provided with an input shaft, and the left end of the motor is provided with an output shaft; the housing cover is provided at the left end of the motor; one end of the first transmission rod is rotatably assembled on the left end surface of the motor, and the other end of the first transmission rod is rotatably assembled on the left inner wall of the housing; the first transmission gear and the second transmission gear are respectively sleeved on the outer circumference of the first transmission rod, and the first transmission gear is located on the right side of the second transmission gear;

[0008] A through hole is provided on the left side of the shell, and a bearing is provided in the through hole. One end of the second transmission rod is rotatably assembled on the left end face of the motor, and the other end of the second transmission rod passes through the bearing and is connected to the input shaft for transmission. The third transmission gear is sleeved on the outer periphery of the second transmission rod; the first transmission gear is meshed with the output shaft, and the second transmission gear is meshed with the third transmission gear.

[0009] In the reduction motor, the first transmission gear, the second transmission gear and the third transmission gear are all helical gears.

[0010] The reduction motor also includes a flange, which is sleeved on the outer circumference of the input shaft and is detachably connected to the housing.

[0011] In the reduction motor, the reduction box is a two-stage reduction box.

[0012] In the reduction motor, the motor further comprises a control box, which is arranged on the top of the motor body. An electronic centrifugal switch is installed in the control box, and the control box is electrically connected to the motor body and an external power supply through circuits.

[0013] In the reduction motor, the motor further comprises a heat dissipation chamber, which is arranged at the right end of the motor body; a plurality of heat dissipation holes are arranged at the right end of the heat dissipation chamber, and the heat dissipation holes are circumferentially distributed with the axis of the motor body as the central axis.

[0014] A technical solution in the utility model can have the following beneficial effects:

[0015] The reduction motor is provided with a pre-reduction assembly between the motor and the reduction box, and the pre-reduction assembly includes a housing, a first transmission rod, a first transmission gear, a second transmission gear, a second transmission rod and a third transmission gear. The output shaft drives the first transmission rod to rotate through the first transmission gear, and the first transmission rod drives the second transmission rod to rotate through the cooperation of the second transmission gear and the third transmission gear, thereby realizing the transmission connection between the input shaft and the output shaft. Due to the provision of the first transmission rod and the second transmission rod, the reduction is performed in advance, the reduction ratio is improved, and the space is reasonably utilized to reduce the volume of the reduction motor, which is conducive to reducing the overall space occupied by the reduction motor, so that the reduction motor can be adapted to more equipment with smaller space. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of one embodiment of the utility model;

[0017] Figure 2 It is a cross-sectional view of one embodiment of the utility model;

[0018] In the attached figure: motor 1, reduction box 2; flange 3;

[0019] Output shaft 10; motor body 11; housing 12, first transmission rod 13, first transmission gear 14, second transmission gear 15, second transmission rod 16, third transmission gear 17; control box 18; heat dissipation chamber 19; input shaft 20; bearing 121; heat dissipation hole 191. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0021] In the description of the present invention, it should be understood that the terms "left", "right", "top", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the features defined as "first" or "second" may explicitly or implicitly include one or more of the features, and are used to distinguish the features, without distinction of order or importance.

[0022] In the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Please refer to Figure 1 and 2 The utility model provides a reduction motor, comprising a motor 1 and a reduction box 2, wherein the motor 1 comprises a motor body 11 and a pre-reduction assembly, wherein the pre-reduction assembly comprises a housing 12, a first transmission rod 13, a first transmission gear 14, a second transmission gear 15, a second transmission rod 16 and a third transmission gear 17;

[0025] An input shaft 20 is provided at the right end of the reduction box 2, and an output shaft 10 is provided at the left end of the motor 1; the housing 12 is covered at the left end of the motor 1; one end of the first transmission rod 13 is rotatably assembled on the left end surface of the motor 1, and the other end of the first transmission rod 13 is rotatably assembled on the left inner wall of the housing 12, and the first transmission gear 14 and the second transmission gear 15 are respectively sleeved on the outer periphery of the first transmission rod 13, and the first transmission gear 14 is located on the right side of the second transmission gear 15;

[0026] A through hole is provided on the left side of the housing 12, and a bearing 121 is provided in the through hole. One end of the second transmission rod 16 is rotatably assembled on the left end face of the motor 1, and the other end of the second transmission rod 16 passes through the bearing 121 and is transmission-connected to the input shaft 20; the third transmission gear 17 is sleeved on the outer periphery of the second transmission rod 16; the first transmission gear 14 is meshed with the output shaft 10, and the second transmission gear 15 is meshed with the third transmission gear 17.

[0027] The reduction motor is provided with a pre-reduction assembly between the motor 1 and the reduction box 2, and the pre-reduction assembly includes a housing 12, a first transmission rod 13, a first transmission gear 14, a second transmission gear 15, a second transmission rod 16 and a third transmission gear 17. The output shaft 10 drives the first transmission rod 13 to rotate through the first transmission gear 14, and the first transmission rod 13 drives the second transmission rod 16 to rotate through the cooperation of the second transmission gear 15 and the third transmission gear 17, thereby realizing the transmission connection between the input shaft 20 and the output shaft 10. Due to the provision of the first transmission rod 13 and the second transmission rod 16, the reduction is performed in advance, the reduction ratio is improved, and the space is reasonably utilized to reduce the volume of the reduction motor, which is conducive to reducing the overall space occupied by the reduction motor, so that the reduction motor can be adapted to more equipment with smaller space.

[0028] Specifically, the first transmission gear 14, the second transmission gear 15 and the third transmission gear 17 are all helical gears. Compared with spur gears, the tooth surface of helical gears is not parallel to the axis, but inclined to the axis, which makes the helical gears more stable when transmitting motion and force, and reduces noise and vibration. Using the above helical gears as the first transmission gear 14, the second transmission gear 15 and the third transmission gear 17 has the advantages of stable transmission, high transmission efficiency and strong load capacity.

[0029] Specifically, it also includes a flange 3 , which is sleeved on the outer circumference of the input shaft 20 , and the flange 3 is detachably connected to the housing 12 .

[0030] In a specific embodiment of the present invention, the flange 3 is fixed to the side wall of the reduction box 2 by bolts, and the flange 3 is detachably connected to the housing 12 by bolts. The flange 3 cooperates with the housing 12 to form a sealed connection, and allows the motor 1 and the reduction box 2 to be easily disassembled or connected, so as to facilitate installation, maintenance and repair.

[0031] Specifically, the reduction box 2 is a two-stage reduction box. In a specific embodiment of the present utility model, the reduction box 2 is a two-stage reduction box, which is used to reduce the rotation speed of the input shaft 20 and increase the torque of the output shaft 10 to provide a larger output torque.

[0032] Specifically, the motor 1 further includes a control box 18, which is disposed on the top of the motor body 11. An electronic centrifugal switch is installed in the control box 18, and the control box 18 is electrically connected to the motor body 11 and an external power supply through circuits.

[0033] The control box 18 is installed on the top of the motor body 11, which makes reasonable use of space, is easy to install, and is convenient for line layout. In addition, the electronic centrifugal switch can be started and stopped frequently, has strong anti-vibration and anti-interference properties, and has a long service life.

[0034] Preferably, the motor 1 further comprises a heat dissipation chamber 19 , which is arranged at the right end of the motor body 11 ; a plurality of heat dissipation holes 191 are arranged at the right end of the heat dissipation chamber 19 , and the heat dissipation holes 191 are circumferentially distributed with the axis of the motor body 11 as the central axis.

[0035] The heat dissipation chamber 19 serves to dissipate heat. The heat generated during the operation of the motor body 11 is discharged from the heat dissipation chamber 19 through the heat dissipation holes 191, which can maintain the normal operating temperature of the motor body 11, help prevent the motor body 11 from overheating and being damaged, extend the service life of the motor body 11, and ensure the stability and reliability of the motor body 11.

[0036] The technical principle of the present invention is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the present invention and cannot be interpreted as limiting the protection scope of the present invention in any way. Based on the explanations here, technicians in this field can think of other specific implementations of the present invention without creative work, and these equivalent variations or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A reduction motor, characterized in that: It includes a motor and a reduction box, wherein the motor includes a motor body and a pre-reduction assembly, and the pre-reduction assembly includes a housing, a first transmission rod, a first transmission gear, a second transmission gear, a second transmission rod and a third transmission gear; The right end of the reduction box is provided with an input shaft, and the left end of the motor is provided with an output shaft; the housing cover is provided at the left end of the motor; one end of the first transmission rod is rotatably assembled on the left end surface of the motor, and the other end of the first transmission rod is rotatably assembled on the left inner wall of the housing; the first transmission gear and the second transmission gear are respectively sleeved on the outer circumference of the first transmission rod, and the first transmission gear is located on the right side of the second transmission gear; A through hole is provided on the left side of the shell, and a bearing is provided in the through hole. One end of the second transmission rod is rotatably assembled on the left end face of the motor, and the other end of the second transmission rod passes through the bearing and is connected to the input shaft for transmission. The third transmission gear is sleeved on the outer periphery of the second transmission rod; the first transmission gear is meshed with the output shaft, and the second transmission gear is meshed with the third transmission gear.

2. A reduction motor according to claim 1, characterized in that: The first transmission gear, the second transmission gear and the third transmission gear are all helical gears.

3. A reduction motor according to claim 1, characterized in that: It also includes a flange, which is sleeved on the outer circumference of the input shaft and is detachably connected to the housing.

4. A reduction motor according to claim 1, characterized in that: The reduction box is a two-stage reduction box.

5. A reduction motor according to claim 1, characterized in that: The motor further comprises a control box, which is arranged on the top of the motor body. An electronic centrifugal switch is installed in the control box. The control box is electrically connected to the motor body and an external power supply through circuits.

6. A reduction motor according to claim 1, characterized in that: The motor further comprises a heat dissipation chamber, which is arranged at the right end of the motor body; a plurality of heat dissipation holes are arranged at the right end of the heat dissipation chamber, and the heat dissipation holes are distributed circumferentially with the axis of the motor body as the central axis.

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