Planetary direct-connection speed reduction motor with brake for hoisting industry convenient to hoist

Abstract

The utility model discloses a convenient-to-hoist planetary direct-connection speed reduction motor with a brake for the hoisting industry. The convenient-to-hoist planetary direct-connection speed reduction motor comprises a common flange, a planetary reduction gearbox, a motor and the brake, the planetary reduction gearbox comprises a box body, a gear ring, a sun gear and a plurality of planetary gears. The box body is fixed on one side of the common flange, the gear ring is fixed in the box body, the sun gear and the planet gears are arranged in the box body, and the planet gears are connected between the sun gear and the gear ring in a meshed mode. The motor is fixed on the other side of the common flange, the motor is provided with a rotor shaft, and one end of the rotor shaft penetrates through the common flange, extends into the box body and is in interference fit with the sun gear into a whole; and the brake is matched and connected with the other end of the rotor shaft. The product is compact and reliable in overall structure, high in transmission efficiency, small in size, small in material consumption, large in constant-torque speed regulation interval, high in braking rate and safer and more reliable in product operation, and the size of the gear motor can be greatly reduced while the transmission efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technology of reduction motor field, in particular to a planetary direct-connected reduction motor with brakes for portable lifting industry. Background Art

[0002] A reduction motor is an energy conversion mechanism that converts high-speed, low-torque mechanical energy into low-speed, high-torque mechanical energy. It uses the gear transmission characteristics to achieve the desired mechanical energy by setting the speed ratio.

[0003] Conventional reducer motors have several pain points: one is the low efficiency of transmission (such as the sliding transmission of worm gears); the second is the single helical gear transmission, only one line is stressed at each instant, and the gear structure utilization rate is low; the third is that the reducer and motor are equipped with flanges respectively, and the sun gear is equipped with bearing transmission, the overall volume is large, and the overall structure utilization rate is low; the fourth is that the torque of ordinary motors will decrease in the constant torque range below 50Hz and the constant power range above 50Hz; the fifth is that the 150% braking rate of conventional brakes cannot meet the needs of the lifting industry. Therefore, it is necessary to improve the current reducer motors. Utility Model Content

[0004] In view of this, the utility model aims to improve the deficiencies of the prior art, and its main purpose is to provide a planetary direct-coupled reduction motor with brake for use in the portable lifting industry, which can effectively solve the problems of low transmission efficiency, large size and small torque of the existing reduction motors.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A planetary direct-coupled reduction motor with brake for use in the portable lifting industry, comprising a common flange, a planetary reduction box, a motor and a brake; the planetary reduction box comprises a housing, a ring gear, a sun gear and a plurality of planetary gears; the housing is fixed to one side of the common flange, the ring gear is fixed in the housing, the sun gear and a plurality of planetary gears are all arranged in the housing, and the plurality of planetary gears are all meshed and connected between the sun gear and the ring gear; the motor is fixed to the other side of the common flange, the motor has a rotor shaft, one end of the rotor shaft passes through the common flange, extends into the housing and is interference fit with the sun gear to form an integral whole; the brake is matingly connected to the other end of the rotor shaft.

[0007] Preferably, a first lifting ring is provided on the outer side surface of the box.

[0008] Preferably, the box body is fixedly connected to the common flange by a plurality of bolts, and a plurality of material removal grooves are provided on the outer side surface of the box body, and the plurality of bolts are located in the corresponding material removal grooves.

[0009] Preferably, the motor is a three-phase asynchronous motor with a base frequency of 87 Hz and a non-standard special S3 working mode.

[0010] Preferably, a second lifting ring is provided on the outer side surface of the motor.

[0011] Preferably, the brake is a reinforced brake specially used in the lifting industry.

[0012] Preferably, the planetary gears are three arranged at equal angles around the circumference.

[0013] Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that:

[0014] The utility model adopts planetary transmission, which has high transmission efficiency, and the planetary transmission has three lines of force at each moment, and the gear structure has high utilization rate. At the same time, the planetary reduction box and the motor are respectively installed on both sides of the common flange to realize flange sharing, and cooperate with the sun gear to directly press on the head of the rotor shaft. The overall structure has high utilization rate. The overall structure of this product is compact and reliable, with high transmission efficiency, small size and less material, large constant torque speed regulation range, high braking rate, safer and more reliable product operation, which can improve the transmission efficiency while greatly reducing the size of the reduction motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an exploded perspective schematic diagram of a preferred embodiment of the utility model.

[0016] Description of the accompanying drawings:

[0017] 10. Common flange 20. Planetary reducer

[0018] 21. Box 22. Ring gear

[0019] 23. Sun gear 24. Planetary gear

[0020] 25. Bolt 26. First lifting ring

[0021] 201, chute 30, motor

[0022] 31. Rotor shaft 32. Second lifting ring

[0023] 40. Braking DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0026] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] Please refer to Figure 1 As shown, it shows the specific structure of a preferred embodiment of the utility model, including a common flange 10, a planetary reduction box 20, a motor 30 and a brake 40.

[0030] The planetary reduction box 20 includes a housing 21, a ring gear 22, a sun gear 23 and a plurality of planetary gears 24; the housing 21 is fixed to one side of the common flange 10, the ring gear 22 is fixed in the housing 21, the sun gear 23 and the plurality of planetary gears 24 are all arranged in the housing 21, and the plurality of planetary gears 24 are all meshed and connected between the sun gear 23 and the ring gear 22. In this embodiment, the housing 21 is fixedly connected to the common flange 10 by a plurality of bolts 25, and a plurality of material removal grooves 201 are provided on the outer side of the housing 21, and the plurality of bolts 25 are located in the corresponding material removal grooves 201, so as to reduce the volume and facilitate the installation of the bolts 25. Also, a first lifting ring 26 is provided on the outer side of the housing 21 for easy lifting. In addition, the planetary gears 24 are three arranged in a circle at equal angles.

[0031] The motor 30 is fixed to the other side of the common flange 10. The motor 30 has a rotor shaft 31. One end of the rotor shaft 31 passes through the common flange 10 and extends into the box 21 and is integrated with the sun gear 23 by interference fit. The structure is compact and reasonable, and the transmission / braking effect is excellent. In this embodiment, the motor 30 is a three-phase asynchronous motor with a non-standard dedicated S3 working mode of 87Hz base frequency, which can meet the constant torque range below 87Hz. The outer side of the motor 30 is provided with a second lifting ring 32 for easy lifting.

[0032] The brake 40 is connected with the other end of the rotor shaft 31. In this embodiment, the brake 40 is a special reinforced brake for the lifting industry, and the 230% braking rate fully meets the needs of the lifting industry.

[0033] The design focus of the utility model is: the utility model adopts planetary transmission, which has high transmission efficiency, and the planetary transmission has three lines of force at each moment, and the gear structure has high utilization rate. At the same time, the planetary reduction box and the motor are respectively installed on both sides of the common flange to realize flange sharing, and cooperate with the sun gear to directly press on the head of the rotor shaft. The overall structure has high utilization rate. The overall structure of this product is compact and reliable, with high transmission efficiency, small size and less material, large constant torque speed regulation range, high braking rate, safer and more reliable product operation, which can improve the transmission efficiency while greatly reducing the size of the reduction motor.

[0034] 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 implementation methods of the present invention without creative work, and these methods will fall within the protection scope of the present invention.

Claims

1. A planetary direct-connected motor with brake reduction gear for portable lifting industry, characterized by: It includes a common flange, a planetary reduction box, a motor and a brake; the planetary reduction box includes a housing, a ring gear, a sun gear and a plurality of planetary gears; the housing is fixed to one side of the common flange, the ring gear is fixed in the housing, the sun gear and the plurality of planetary gears are all arranged in the housing, and the plurality of planetary gears are all meshed and connected between the sun gear and the ring gear; the motor is fixed to the other side of the common flange, the motor has a rotor shaft, one end of the rotor shaft passes through the common flange and extends into the housing and is interference fit with the sun gear to form an integral whole; the brake is matched and connected with the other end of the rotor shaft.

2. The planetary direct-coupled motor with brake reduction for portable lifting industry as claimed in claim 1 is characterized by: A first lifting ring is arranged on the outer side surface of the box body.

3. The planetary direct-coupled motor with brake reduction for portable lifting industry as claimed in claim 1 is characterized by: The box body is fixedly connected to the common flange by a plurality of bolts, and a plurality of material removal grooves are arranged on the outer side of the box body, and the plurality of bolts are located in the corresponding material removal grooves.

4. The planetary direct-coupled motor with brake reduction for portable lifting industry as claimed in claim 1 is characterized by: The motor is a three-phase asynchronous motor with a base frequency of 87 Hz and a non-standard special S3 working mode.

5. The planetary direct-coupled motor with brake reduction for portable lifting industry as claimed in claim 1, characterized in that: A second lifting ring is arranged on the outer side surface of the motor.

6. The planetary direct-coupled motor with brake reduction for portable lifting industry as claimed in claim 1, characterized in that: The brake is a reinforced brake specially used in the lifting industry.

7. The planetary direct-coupled motor with brake reduction for portable lifting industry as claimed in claim 1, characterized in that: The planetary gears are three arranged in a circle at equal angles.

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