CN114576338A

CN114576338A - Driving device of planetary reducer

Info

Publication number: CN114576338A
Application number: CN202210483240.6A
Authority: CN
Inventors: 胡炜
Original assignee: Ward Transmission Technology Tianjin Co ltd
Current assignee: Ward Transmission Technology Tianjin Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-06-03
Anticipated expiration: 2042-05-06
Also published as: CN114576338B

Abstract

The invention provides a driving device of a planetary speed reducer, which comprises a primary planetary speed reducer, a connecting sun shaft, a connecting base and a permanent magnet driving motor, wherein the primary planetary speed reducer, the connecting sun shaft, the connecting base and the permanent magnet driving motor are coaxially arranged, one side of the connecting base is connected with the permanent magnet driving motor through a bolt, the other side of the connecting base is installed at one side of the primary planetary speed reducer, one end of the connecting sun shaft is installed inside the permanent magnet driving motor, and the other end of the connecting sun shaft penetrates through the connecting base to be installed inside the primary planetary speed reducer. The driving device of the planetary speed reducer can be integrated, has higher integration level, solves the problem of high integration of a permanent magnet device and the speed reducer device and solves the problems of small space and high temperature of the speed reducer; in addition, because the parts are few, the driving device of the planetary reducer is small in size, high in efficiency, energy-saving, environment-friendly and maintenance-free.

Description

Driving device of planetary reducer

Technical Field

The invention belongs to the technical field of underground planetary reducer equipment, and particularly relates to a driving device of a planetary reducer.

Background

In the existing mechanical movement, a power source generally comes from a motor, but the motor has high rotating speed and small torque and cannot be used satisfactorily. The common mode is that the motor reaches practical purpose through the form of shaft coupling and speed reducer. The mode is widely used, although the application is reliable, the defects of multiple parts, large volume, high power consumption and the like are overcome, the industrial requirements are not met gradually, particularly when the speed reducer is used for underground operation, the underground speed reducer belongs to one type of special equipment, once the speed reducer is improperly used, accidents such as explosion, combustion and the like are easily caused in a narrow underground space, although the conventional underground equipment is subjected to explosion-proof and explosion-proof design and achieves a higher safety level, the problems can not be completely solved, in addition, when the temperature of the conventional speed reducer is high, a drawer type water-cooling coil pipe structure is usually used for cooling the speed reducer, but some special speed reducers, such as the speed reducer of the UDS unmanned drive station, have compact structure and small space, and do not have enough space for placing water-cooling coils.

Disclosure of Invention

In view of this, the present invention provides a driving device of a planetary reducer, so as to solve the deficiencies of the prior art, and the driving device has a smaller volume, higher efficiency, fewer components, and is safer and more reliable.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the utility model provides a planetary reducer's drive arrangement, includes one-level planetary reducer, connects sun axle, connects base and permanent magnet drive motor, one-level planetary reducer, connection sun axle, connection base and the coaxial setting of permanent magnet drive motor, connect base one side and permanent magnet drive motor bolted connection, connect the base opposite side and install to one-level planetary reducer one side, it installs inside permanent magnet drive motor to connect sun axle one end, connects the sun axle other end and passes and connect the base and install inside one-level planetary reducer.

Further, still include the skeleton oil blanket, the skeleton oil blanket is installed to connecting between the base and the connection sun axle.

Furthermore, the connecting base comprises a support, a bearing seat and a baffle, a yielding groove is formed in the bearing seat, the solar shaft is connected in the yielding groove in an sleeved mode, the support is arranged outside the bearing seat, the baffle is arranged on one side of the support and one side of the bearing seat, and the support, the bearing seat and the baffle are of an integrally formed structure.

Furthermore, the barrier is of a cuboid structure.

Furthermore, the oil injection air vent and the oil outlet hole are respectively formed in the side wall of the support, and the oil injection air vent and the oil outlet hole are symmetrically arranged.

Furthermore, a plurality of oil passing holes are uniformly formed in the circumferential direction at the joint of the support and the bearing seat.

Furthermore, a water-cooling cavity is formed in the inner wall of the support and is of an annular groove structure, and a separation barrier is arranged on one side of the water-cooling cavity.

Furthermore, a water filling port and a water outlet are further formed in the side wall of the support, and the water filling port and the water outlet are symmetrically arranged on two sides of the partition.

Furthermore, the cross section of the bearing seat is of a U-shaped structure, and the U-shaped structure is matched with the framework oil seal for use.

Compared with the prior art, the driving device of the planetary reducer has the following advantages:

the driving device of the planetary speed reducer can be integrated, has higher integration level, solves the problem of high integration of a permanent magnet device and the speed reducer device and solves the problems of small space and high temperature of the speed reducer; in addition, because the parts are few, the driving device of the planetary reducer is small in size, high in efficiency, energy-saving, environment-friendly and maintenance-free.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic cross-sectional view of the overall structure of an embodiment of the present invention;

FIG. 2 is a schematic front view of a connection base according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view of a connection base A-A according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view of a connection base B-B according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an on-line monitoring system configured in an overall structure according to an embodiment of the present invention.

Description of reference numerals:

1. a first-stage planetary reducer; 2. connecting a sun shaft; 3. connecting a base; 31. a support; 32. an oil injection vent; 33. a bearing seat; 34. an oil passing hole; 35. water-cooling the cavity; 36. a water injection port; 37. a water outlet; 38. separating the gear; 39. an oil outlet hole; 4. a permanent magnet drive motor.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 5, a driving device of a planetary reducer comprises a primary planetary reducer 1, a connection sun shaft 2, a connection base 3 and a permanent magnet drive motor 4, wherein the primary planetary reducer 1, the connection sun shaft 2, the connection base 3 and the permanent magnet drive motor 4 are coaxially arranged, one side of the connection base 3 is in bolt connection with the permanent magnet drive motor 4, the other side of the connection base 3 is installed on one side of the primary planetary reducer 1, one end of the connection sun shaft 2 is installed inside the permanent magnet drive motor 4, and the other end of the connection sun shaft 2 penetrates through the connection base 3 and is installed inside the primary planetary reducer 1. The driving device of the planetary speed reducer can be integrated, has higher integration level, solves the problem of high integration of a permanent magnet device and a speed reducer device and solves the problems of small space and high temperature of the speed reducer; in addition, because the parts are few, the driving device of the planetary reducer is small in size, high in efficiency, energy-saving, environment-friendly and maintenance-free.

The structure comprises a base 3 and a connecting sun shaft 2, and is characterized by further comprising a framework oil seal, wherein the framework oil seal is arranged between the connecting base 3 and the connecting sun shaft 2, and lubricating oil of the primary planetary reducer 1 and the permanent magnet driving motor 4 is prevented from flowing into the connecting sun shaft 2.

The connecting base 3 comprises a support 31, a bearing seat 33 and a baffle 38, a yielding groove is formed in the bearing seat 33, the sun shaft 2 is sleeved in the yielding groove, the support 31 is arranged outside the bearing seat 33, the baffle 38 is arranged on one side of the support 31 and one side of the bearing seat 33, and the baffle 38 is of a cuboid structure. The support 31, the bearing seat 33 and the baffle 38 are of an integrated structure. The setting of integrated into one piece structure not only can make this drive arrangement integrate, reduces the volume, can strengthen the intensity of connecting base 3 moreover.

Oiling blow vent 32 and oil outlet 39 have been seted up respectively to support 31 lateral wall, oiling blow vent 32 and oil outlet 39 symmetry set up, in this embodiment, oiling blow vent 32 is a position dual function, possesses the function of oiling mouth, blow vent simultaneously, oil outlet 39 still communicates with 4 inside lubricating oil passageways of permanent magnet drive motor to make one-level planetary reducer 1, connect

base

3 and 4 lubricated passageways of permanent magnet drive motor and communicate.

The connecting part of the support 31 and the bearing seat 33 is circumferentially and uniformly provided with a plurality of oil passing holes 34, the oil passing holes 34 are used for enabling lubricating oil to flow in the driving device and enable the lubricating oil to be lubricated more easily, the number of the oil passing holes 34 can be set according to actual requirements during actual use, and in the embodiment, the number of the oil passing holes 34 is 6.

Water-cooling cavity 35 is seted up to support 31 inner wall, water-cooling cavity 35 is the ring channel structure, water-cooling cavity 35 one side is equipped with separates shelves 38, in this embodiment, separates shelves 38 with water-cooling cavity 35 one in two halves, separates the effect of shelves 38 and is that the circulation effect is not good after the water-cooling cavity 35 water injection in order to prevent the whole expert, thereby when the in-service use, the staff can be through annotating water or coolant liquid for the speed reducer cooling in to water-cooling cavity 35.

The side wall of the support 31 is further provided with a water injection port 36 and a water outlet 37, and the water injection port 36 and the water outlet 37 are symmetrically arranged on two sides of the partition 38. In this embodiment, 2 water filling port 36 and 2 delivery ports 37 have been seted up respectively to support 31 lateral wall, 2 water filling port 36 symmetry sets up, 2 delivery port 37 symmetry sets up, and when in actual use, need plug up one of them water filling port 36 and delivery port 37, the water filling port 36 and the delivery port 37 that are plugged up are kept for use, and the slope of water filling port 36 is seted up in support 31 lateral wall, such benefit is not only convenient for the staff and is drilled support 31 lateral wall, but also can avoid the water backward flow in the water-cooling cavity 35 to go out water filling port 36.

The cross section of the bearing seat 33 is of a U-shaped structure, the U-shaped structure is matched with the skeleton oil seal for use, and the skeleton oil seal is conveniently clamped between the bearing seat 33 and the sun shaft 2 through the U-shaped structure, so that lubricating oil is prevented from flowing into the bearing seat.

Example 1

The driving device of the planetary reducer is really integrated and integrated into one component, and has the advantages of small volume, light weight, high efficiency and even no maintenance under the condition of the same output requirement. The structural form is shown in the following figure 1: the primary planetary reducer 1 is directly connected with the permanent magnet driving motor 4 through the connection sun shaft 2. The primary planetary reducer 1 adopts a planetary structure and has the characteristics of small volume, large speed ratio and large bearing torque. But the balance and effective connection between the primary planetary reducer 1 and the permanent magnet driving motor 4 are two major problems. Firstly, an equal-strength concept is adopted, and the primary planetary reducer 1 and the permanent magnet driving motor 4 reach balance under the concept. The design of the connecting structure of the two is difficult, the lubricating modes of the two are different, one is lubricating oil lubrication and the other is grease lubrication, and the lubricating oil in the primary planetary reducer 1 cannot enter the permanent magnet driving motor 4. Through connecting base 3, one-level planetary reducer 1 is adorned on connecting base 3, then connects base 3 and permanent magnet drive motor 4 and uses the bolt to link, adds the skeleton oil blanket on connecting base 3 and connecting sun shaft 2, prevents that lubricating oil from flowing into. For more integration, the connection sun shaft 2 is formed by manufacturing a motor shaft of the permanent magnet driving motor 4 and a sun shaft of the primary planetary reducer 1 into a whole, and power is directly transmitted, so that the size is smaller, and the efficiency is higher. The prior art includes two, the first is the drive division structural style that uses the most now, speed reducer + shaft coupling subassembly + inverter motor's form, and inverter motor can realize soft start, and the rotational speed is 1500r/min generally. Then, the speed reducer and the motor are connected through the coupling, and the speed reducer is generally more than 2 stages in order to obtain larger torque. Although the scheme can meet the use requirement, the number of parts and the number of damaged points are large; the number of parts is large, the overall efficiency is low, and the waste is serious; the whole set is large in volume and heavy in weight; maintenance is also cumbersome if used in harsh environments.

The second adopts a permanent magnet motor plus a speed reducer, and the driving part is improved compared with the prior driving part, but has defects. The speed reducer is directly connected with the permanent magnet motor by a spline. Although the advantages of the permanent magnet motor are applied, the intermediate connecting piece coupler and the like are reduced, the speed reducer and the permanent magnet motor are still two independent bodies, only two parts are spliced together, the number of the speed reducer is still 2 or more, and the performance of the permanent magnet motor is not completely excavated.

As shown in fig. 2-4, the connection base 3 is a detailed description, although it is a single component, it carries many functions, and because of the compact structure of the new driving, it can integrate the cooling, ventilation, oil filling, oil discharging, support bearing and connection permanent magnet driving motor 4 of the first-stage planetary reducer 1. As shown in fig. 3, the oil filling vent 32 is located at the upper side, and has dual functions of an oil filling port and a vent at one position. And a bearing seat 33 is arranged downwards, and the bearing seat 33 is used for installing a bearing to support the planet carrier, so that the primary planetary reducer 1 is more stable. Further down are oil through holes 34 through which lubricating oil is allowed to flow for easier lubrication. Finally, the most important water cooling structure is that the support 31 is made into a closed water cooling cavity 35 by welding technology, the hollow ring shape is provided with a water injection port 36 and a water outlet 37 at the upper side, as shown in fig. 4, and fig. 4 is a view B-B of fig. 2. In order to prevent poor circulation effect after water is injected into the full-through water-cooling cavity 35, the partition 38 is added, and the water inlet and the water outlet are divided into the left and the right.

As shown in fig. 5 below, the entire driving device of the planetary reducer may further be configured with an on-line monitoring system (the on-line monitoring system is the prior art), a sensor with vibration and temperature integrated is installed at three points, i.e., a mark point a/B/D in fig. 5, to monitor the vibration and temperature of rotating members such as a bearing and a rotating shaft, and an oil analysis sensor is installed at a mark point C in fig. 5 to monitor the quality of the lubricating oil in real time.

The first level is the data acquisition layer (prior art): the sensor can acquire vibration signals in the running process of the equipment in real time, and is connected to the underground looped network through the wired Ethernet or the optical fiber, and finally, the data are transmitted to the on-site state monitoring server.

The second level is the on-site monitoring system (prior art): the field is matched with a server for storing the equipment state data sent back from the data acquisition layer, and field equipment maintenance and management personnel can access the system through the existing computer terminal to know the real-time running state of the monitoring unit.

The third level is telemonitoring system (prior art): through the system, a remote diagnosis expert can perform remote data analysis and fault diagnosis on all monitored equipment, processed information is pushed to a client through a mobile phone App, and the client can know the running state of the equipment and a corresponding equipment running maintenance suggestion in real time.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A drive device of a planetary reducer is characterized in that: including one-level planetary reducer (1), connect sun axle (2), connect base (3) and permanent magnet drive motor (4), one-level planetary reducer (1), connect sun axle (2), connect base (3) and permanent magnet drive motor (4) coaxial setting, connect base (3) one side and permanent magnet drive motor (4) bolted connection, connect base (3) opposite side and install to one-level planetary reducer (1) one side, connect sun axle (2) one end and install inside permanent magnet drive motor (4), connect sun axle (2) other end and pass and connect base (3) and install to one-level planetary reducer (1) inside.

2. A drive device of a planetary reducer as claimed in claim 1, wherein: the solar energy power generation device is characterized by further comprising a framework oil seal, wherein the framework oil seal is arranged between the connecting base (3) and the connecting solar shaft (2).

3. A drive device of a planetary reducer as claimed in claim 1, wherein: the connecting base (3) comprises a support (31), a bearing seat (33) and a baffle (38), wherein a yielding groove is formed in the bearing seat (33), the sun shaft (2) is sleeved in the yielding groove, the support (31) is arranged outside the bearing seat (33), the baffle (38) is arranged on one side of the support (31) and one side of the bearing seat (33), and the support (31), the bearing seat (33) and the baffle (38) are of an integrally formed structure.

4. A drive device of a planetary reducer as claimed in claim 3, wherein: the barrier (38) is of a cuboid structure.

5. A drive device of a planetary reducer as claimed in claim 3, wherein: the oil injection air vent (32) and the oil outlet hole (39) are formed in the side wall of the support (31) respectively, and the oil injection air vent (32) and the oil outlet hole (39) are symmetrically arranged.

6. A drive device of a planetary reducer as claimed in claim 3, wherein: and a plurality of oil passing holes (34) are uniformly formed in the circumferential direction at the joint of the support (31) and the bearing seat (33).

7. A drive device of a planetary reducer as claimed in claim 3, wherein: a water-cooling cavity (35) is formed in the inner wall of the support (31), the water-cooling cavity (35) is of an annular groove structure, and a partition (38) is arranged on one side of the water-cooling cavity (35).

8. A drive device of a planetary reducer as claimed in claim 3, wherein: the water injection port (36) and the water outlet (37) are further formed in the side wall of the support (31), and the water injection port (36) and the water outlet (37) are symmetrically arranged on two sides of the partition (38).

9. A drive device of a planetary reducer as claimed in claim 3, wherein: the cross section of the bearing seat (33) is of a U-shaped structure, and the U-shaped structure is matched with the framework oil seal for use.