CN215927883U - Shaft connecting device, fan assembly and air conditioning equipment - Google Patents
Shaft connecting device, fan assembly and air conditioning equipment Download PDFInfo
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- CN215927883U CN215927883U CN202122140073.9U CN202122140073U CN215927883U CN 215927883 U CN215927883 U CN 215927883U CN 202122140073 U CN202122140073 U CN 202122140073U CN 215927883 U CN215927883 U CN 215927883U
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Abstract
The utility model discloses a shaft connecting device, a fan assembly and air conditioning equipment, wherein the shaft connecting device is used for connecting a first wind wheel and a second wind wheel which rotate around a first direction and have opposite rotating directions, and comprises a sleeve body, a connecting body and a transmission structure formed between the sleeve body and the connecting body, the sleeve body is connected with the first wind wheel in a rotation stopping matching mode, the connecting body is connected with the second wind wheel in a rotation stopping matching mode, the connecting body is at least partially sleeved in the sleeve body, a rotating shaft extending around the first direction is rotatably arranged relative to the sleeve body, and the transmission structure enables the connecting body and the sleeve body to be in transmission connection in an opposite rotating direction. In the utility model, the first wind wheel and the second wind wheel are coaxially connected in a transmission fit manner through the shaft connecting device in opposite rotating directions, the installation is convenient and reliable, the whole occupied space of the fan assembly is small, the motor structure does not need to be modified in a complex manner, and the production cost is lower.
Description
Technical Field
The utility model relates to the technical field of air conditioning, in particular to a shaft connecting device, a fan assembly and air conditioning equipment.
Background
Existing air conditioning equipment is typically equipped with a fan assembly for driving air flow to perform ventilation, air temperature conditioning, and/or air humidity conditioning functions. In some air conditioning apparatuses, a contra-rotating fan assembly is used, which includes two wind wheels with opposite rotation directions and coaxial rotation axes.
For this reason, to rotating fan subassembly usually need be equipped with two motors to make two wind wheels rotate by the motor drive that corresponds respectively, this leads to the whole occupation space of fan subassembly big, and the cost is higher. Or a double-rotating-shaft motor with an inner rotor and an outer rotor can be adopted to respectively drive the two wind wheels to rotate, so that the motor needs to be modified in a complex way, the structure of the motor is complex, the reliability is low, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a shaft connecting device, a fan assembly and air conditioning equipment which are simple and reliable in structure, small in occupied space, free of modification of a motor and low in production cost.
To achieve the above object, the present invention provides a shaft connecting device including:
the sleeve body is used for being connected with the first wind wheel in a rotation stopping matching mode, and the axial direction of the sleeve body extends along the first direction;
the connecting body is at least partially sleeved in the sleeve body, and a rotating shaft extending around the first direction is rotatably arranged relative to the sleeve body; and the number of the first and second groups,
the transmission structure is formed between the connecting body and the sleeve body, so that the connecting body and the sleeve body are in transmission connection in the opposite rotating directions.
In this embodiment, the transmission structure includes a first gear formed on an outer periphery of the connecting body, an internal gear formed on an inner periphery of the sleeve body, and a transmission gear provided between the first gear and the internal gear, the transmission gear being externally engaged with the first gear and internally engaged with the internal gear.
In the embodiment, the transmission ratio between the first gear and the transmission gear is a, the transmission ratio between the transmission gear and the internal gear is b, and the product of a and b is 1.
In this embodiment, the transmission gear includes a second gear and a third gear, the second gear and the third gear are coaxially and fixedly connected through a transmission shaft extending along the first direction, the second gear is externally engaged with the first gear, and the third gear is internally engaged with the internal gear.
In this embodiment, the gear ratio between the first gear and the second gear 1/2, and the gear ratio between the third gear and the annulus gear is 2.
In this embodiment, the transmission gears are provided with a plurality of groups, and the plurality of groups of transmission gears are distributed at intervals along the circumferential direction of the first gear.
In this embodiment, the sleeve body has a connection section, and the connection section is used for inserting the pivot hole of locating first wind wheel along the first direction to make the sleeve body with first wind wheel key-type connection.
In this embodiment, the connection body is formed with a keyhole extending along the first direction, and the keyhole is used for inserting a rotating shaft of a motor shaft or the second wind wheel so that the connection body is connected with the motor shaft or the second wind wheel in a key manner.
In this embodiment, the sleeve body has first end and the second end that is relative setting in the axial, the linkage segment is formed between first end and the second end, the one end of connecting the body certainly first end protruding is located the sleeve body, the drill way orientation of keyhole the connecting the body is kept away from one side of sleeve body, the drill way is used for supplying motor shaft or the pivot of second wind wheel inserts the keyhole.
In this embodiment, a limiting portion is formed at an end of the connecting body away from the sleeve body, and the limiting portion is used for limiting the relative movement between the second wind wheel and the connecting body in the first direction.
In this embodiment, the sleeve body is in first end forms spacing step face the second pot head is equipped with stop nut, spacing step face certainly the periphery of sleeve body is along radially outwards extending, stop nut follows first direction is located adjustably sleeve body, so that the both ends in pivot hole are pressed from both sides and are located spacing step face with between the stop nut.
In this embodiment, the socket further comprises a locking nut, wherein the locking nut is arranged at one end of the connecting body, which is convexly arranged on the sleeve body, and is adjustably inserted into the keyhole along the radial direction of the keyhole.
To achieve the above object, the present invention also provides a fan assembly, comprising:
a first wind wheel and a second wind wheel;
the motor is in driving connection with the first wind wheel or the second wind wheel; and the number of the first and second groups,
the shaft connecting device is respectively connected with the first wind wheel and the second wind wheel, so that the first wind wheel and the second wind wheel are in transmission connection in opposite rotating directions.
In this embodiment, the motor, the second wind wheel, the shaft connecting device and the first wind wheel are sequentially arranged in the axial direction.
To achieve the above object, the present invention further provides an air conditioning apparatus including the fan assembly as described above.
The utility model provides a shaft connecting device which is used for connecting a first wind wheel and a second wind wheel which rotate around a first direction and have opposite rotating directions, and comprises a sleeve body, a connecting body and a transmission structure formed between the sleeve body and the connecting body, wherein the sleeve body is used for being connected with the first wind wheel in a rotation stopping matching mode, the connecting body is used for being connected with the second wind wheel in a rotation stopping matching mode, the connecting body is at least partially sleeved in the sleeve body, a rotating shaft extending around the first direction is rotatably arranged relative to the sleeve body, and the transmission structure enables the connecting body and the sleeve body to be connected in a transmission mode with opposite rotating directions. In the embodiment provided by the utility model, the first wind wheel and the second wind wheel are coaxially connected in a transmission fit manner through the shaft connecting device in opposite rotating directions, the installation is convenient and reliable, the whole structure of the fan assembly is compact, the occupied space is small, the first wind wheel or the second wind wheel can be driven by adopting a common motor without an inner rotor and an outer rotor, the motor structure does not need to be modified, and the production cost is low.
Drawings
FIG. 1 is a schematic perspective view of a fan assembly according to an embodiment of the present invention;
FIG. 2 is an exploded perspective view of the blower assembly of FIG. 1;
FIG. 3 is a front view of the blower assembly of FIG. 1;
FIG. 4 is a side assembly view of the blower assembly of FIG. 1;
FIG. 5 is a cross-sectional view of the blower assembly of FIG. 1;
FIG. 6 is a cross-sectional assembled schematic view of the blower assembly of FIG. 5;
FIG. 7 is a side view of the shaft coupling device of FIG. 4;
fig. 8 is a cross-sectional view of the shaft connecting device of fig. 7.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
135 | |
| 101 | |
21 | First bearing |
| 102 | |
22 | Second bearing |
| 103 | |
23 | Third bearing |
| 200 | |
110 | Connecting |
| 201 | |
111 | |
| 10 | |
112 | |
| 11 | |
113 | |
| 12 | Connecting |
114 | |
| 13 | |
120 | |
| 131 | |
121 | Orifice |
| 132 | |
122 | Limiting |
| 133 | |
123 | |
| 134 | Third gear |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 6, the present invention provides a fan assembly 100 and an air conditioning apparatus including the fan assembly 100. Specifically, the air conditioning device may be a fresh air fan, an air conditioner, a humidifier, a sterilizer, a ventilator, or the like, which is capable of performing functions such as ventilation, air sterilization, air temperature adjustment, and/or air humidity adjustment. The air conditioning equipment is provided with the fan assembly 100, and the fan assembly 100 is used for driving airflow to flow, so that the air conditioning functions of ventilation, air heating, cooling, disinfection and/or humidification and the like are realized.
In the embodiment provided by the utility model, the air conditioning equipment adopts a contra-rotating fan assembly 100, and the contra-rotating fan assembly 100 comprises two wind wheels with opposite rotating directions and coaxial rotating shafts. For this reason, current disrotatory fan subassembly need be equipped with two motors usually to make two wind wheels rotate by the motor drive that corresponds respectively, this kind of drive mode is comparatively simple reliable, but leads to the whole occupation space of fan subassembly big, and the motor cost is higher. Or a double-rotating-shaft motor with an inner rotor and an outer rotor can be adopted to respectively drive the two wind wheels to rotate, so that the motor needs to be modified, the structure of the motor is complex, the reliability is low, and the cost of the motor is high.
To solve the above technical problem, referring to fig. 1 to 8, the present invention provides a shaft connecting device 10, wherein the shaft connecting device 10 is used for connecting two wind wheels in the wind turbine assembly 100. In this embodiment, referring to fig. 1 to 6, the wind turbine assembly 100 includes an electric motor 200, a first wind turbine 101 and a second wind turbine 102, and the shaft connecting device 10 provided in this embodiment, the electric motor 200 is directly connected to one of the first wind turbine 101 or the second wind turbine 102 in a driving manner, and the shaft connecting device 10 is respectively connected to the first wind turbine 101 and the second wind turbine 102, so that the first wind turbine 101 and the second wind turbine 102 are in a transmission connection in opposite rotation directions and are driven by the electric motor 200 to rotate. In this embodiment, the first wind wheel 101 and the second wind wheel 102 are connected through the shaft connecting device 10 in a transmission manner, so that the first wind wheel 101 and the second wind wheel 102 are driven by the motor 200 to rotate, two motors 200 are not needed, the occupied space is small, and the cost is low.
In the present embodiment, the specific types of structures of the first wind turbine 101 and the second wind turbine 102 are not limited as long as the first wind turbine 101 and the second wind turbine 102 are coaxially arranged in series with opposite rotation directions. In this embodiment, the first wind rotor 101 and the second wind rotor 102 both rotate about a first direction. The first wind wheel 101 and the second wind wheel 102 may be specifically a centrifugal wind wheel, an axial flow wind wheel or an oblique flow wind wheel. In an embodiment, referring to fig. 1 to 4, the first wind wheel 101 and the second wind wheel 102 are coaxial rotational axial flow wind wheels, the rotational directions of the first wind wheel 101 and the second wind wheel 102 are opposite, and the blade types are different, so that both the first wind wheel 101 and the second wind wheel 102 supply air to the same side, and the effects of reducing noise of the fan assembly 100 and increasing air supply amount to a certain extent are achieved.
With reference to fig. 5 to 8, in the present embodiment, the shaft connecting device 10 includes a sleeve body 11, a connecting body 12 and a transmission structure 13, the sleeve body 11 is configured to be connected with the first wind wheel 101 in a rotation-stop fit manner, an axial direction of the sleeve body 11 extends along the first direction, the connecting body 12 is configured to be connected with the second wind wheel 102 in a rotation-stop fit manner, the connecting body 12 is at least partially sleeved in the sleeve body 11, and a rotation shaft extending around the first direction is rotatably disposed relative to the sleeve body 11, and the transmission structure 13 is formed between the connecting body 12 and the sleeve body 11, so that the connecting body 12 and the sleeve body 11 are in a transmission connection in a reverse rotation direction.
In this embodiment, the sleeve body 11 is connected with the first wind wheel 101 in a rotation stopping fit manner, and the specific connection manner of the connection body 12 connected with the second wind wheel 102 in a rotation stopping fit manner is not limited, and specifically, the connection body may be directly connected or indirectly connected through other components, as long as the sleeve body 11 is connected with the first wind wheel 101 in a non-rotation fit manner, and the connection body 12 is connected with the second wind wheel 102 in a non-rotation fit manner. For example, the sleeve body 11 and the first wind wheel 101, and/or the connecting body 12 and the second wind wheel 102 may be coaxially fixed, may be keyed, etc. In this embodiment, the sleeve body 11 and the first wind wheel 101, and the connection body 12 and the second wind wheel 102 are detachably connected, and since the shaft connection device 10 is an integrated modular arrangement, only the sleeve body 11 and the first wind wheel 101 of the shaft connection device 10 need to be assembled, and the connection body 12 and the second wind wheel 102 are assembled, so that the assembly of the fan assembly 100 can be completed. Thus, the assembling operation of the fan assembly 100 is facilitated, and the installation efficiency of the fan assembly 100 is improved.
Referring to fig. 7, an axially extending installation channel is formed in the sleeve body 11, and the connection body 12 is entirely sleeved in the installation channel, or partially sleeved in the installation channel and partially exposed out of the sleeve body 11. Further, the connecting body 12 and the sleeve body 11 are relatively rotatably disposed, and a rotating shaft for relative rotation therebetween extends along the first direction, and the connecting body 12 and the sleeve body 11 are driven by a driving structure 13 formed between the sleeve body 11 and the connecting body 12, so that the rotating directions of the connecting body 12 and the sleeve body 11 are opposite, and thus, the first wind wheel 101 and the second wind wheel 102 are coaxially and rotationally connected in a driving manner in an opposite manner under the connection of the shaft connecting device 10.
Based on the above structure, in the present embodiment, through the simple structure of the shaft connecting device 10, the coaxial and opposite rotation directions transmission connection between the first wind wheel 101 and the second wind wheel 102 is realized, the connection structure is simple and reliable, the motor 200 in the wind turbine assembly 100 can be directly in driving fit with one of the first wind wheel 101 and the second wind wheel 102, so that one of the first wind wheel 101 and the second wind wheel 102 is driven to rotate in the same direction as the motor shaft 201 of the motor 200, and the other of the first wind wheel 101 and the second wind wheel 102 is driven by the shaft connecting device 10 to rotate in the opposite direction as the motor shaft 201 of the motor 200. In this embodiment, only one motor 200 is provided, and the dual-shaft motor 200 with inner and outer rotors does not need to be used to drive the first wind wheel 101 and the second wind wheel 102 to rotate in opposite directions, so that the motor 200 has a simple structure and a low cost. The shaft connecting device 10 is composed of a sleeve body 11 and a connecting body 12 which are integrally arranged, and is simple and compact in overall structure, small in occupied space and easy to assemble.
Further, based on the above structure, it can be seen that, in the wind turbine assembly 100, the motor 200, the shaft connecting device 10, the first wind turbine 101 and the second wind turbine 102 may be arranged along the first direction, that is, in the wind turbine assembly 100, the axial directions of the main components all extend along the first direction, and are arranged in sequence along the axial direction. This results in a small radial dimension and a small footprint for the overall fan assembly 100. Compared with a bevel gear transmission structure, the fan assembly 100 occupies a small radial space and is easy to arrange. It can be understood that, for example, in the axial flow type paired cyclone assembly 100, the wind channel structure adapted to the fan assembly 100 generally extends along the axial direction, and thus, the shaft connecting device 10 provided by the present embodiment connects the first wind wheel 101 and the second wind wheel 102, so that the overall structure of the fan assembly 100 is more compact, occupies a small space in the radial direction, and is suitable for being installed in the wind channel extending along the axial direction. And the shaft connecting device 10 is designed as an integrated module, and has a compact structure and a small size, so that the whole occupied space of the fan assembly 100 is small, and the fan assembly is easily and flexibly arranged under the condition that the size of the air conditioning equipment is limited, thereby reducing the whole size of the air conditioning equipment, reducing the production and transportation costs of the air conditioning equipment, and making the appearance of the air conditioning equipment more beautiful.
In an embodiment, the motor 200 may be disposed on a side of the first wind wheel 101 far from the second wind wheel 102, or on a side of the second wind wheel 102 far from the first wind wheel 101, in which case, the motor 200 drives the first wind wheel 101 or the second wind wheel 102 with a short distance to rotate, and the shaft connection device 10 is disposed between the first wind wheel 101 and the second wind wheel 102, so that the first wind wheel 101 and the second wind wheel 102 are engaged in opposite rotation directions. In this embodiment, the motor 200 may be a single-shaft standard motor 200, which not only makes the blower assembly 100 compact in structure, small in radial dimension and small in occupied space, but also makes the motor 200 adopt the standard motor 200, and has simple assembly and lower production cost. In an embodiment, referring to fig. 4 and 6, the electric machine 200, the second wind wheel 102, the shaft connecting device 10 and the first wind wheel 101 are arranged in sequence in the axial direction. In this embodiment, the motor 200 is drivingly connected to the second wind wheel 102, and the second wind wheel 102 is drivingly connected to the first wind wheel 101 through the shaft connecting device 10 in a manner opposite to the rotating direction, so that the fan assembly 100 has a compact overall structure, is simple to install, and is reliable in connection.
In another embodiment, the electric machine 200 may be arranged between the first wind rotor 101 and the second wind rotor 102. The motor shaft 201 of the motor 200 extends out from both ends of the motor 200, one of the motor shafts 201 is directly connected with one of the first wind wheel 101 and the second wind wheel 102 in a driving manner, and the other motor shaft 201 is connected with the other one of the first wind wheel 101 and the second wind wheel 102 in a driving manner through the shaft connecting device 10, so that the first wind wheel 101 and the second wind wheel 102 rotate coaxially and rotate oppositely and are driven by the same motor 200. In this embodiment, the fan assembly 100 is also compact, and has a small radial dimension and a small occupied space. The motor 200 is a dual-shaft motor 200, and compared with the non-standard motor 200 in the previous embodiment, the motor 200 needs to be modified to a certain extent, and has a lower cost compared with the inner and outer rotor motors 200, but has a higher cost and is more complex compared with the standard motor 200.
The transmission structure 13 is disposed between the connecting body 12 and the sleeve body 11, specifically, between the outer periphery of the connecting body 12 and the inner periphery of the sleeve body 11, so that the shaft connecting device 10 is of an integrated modular design, thereby facilitating the assembly of the fan assembly 100 and improving the installation efficiency. The specific form of the transmission structure 13 can be various, as long as the opposite rotation direction transmission connection of the connecting body 12 and the sleeve body 11 can be realized. For example, the transmission structure 13 may be a gear structure provided between the connecting body 12 and the sleeve body 11. Specifically, in the present embodiment, referring to fig. 8, the transmission structure 13 includes a first gear 131 formed on the outer periphery of the connecting body 12, an internal gear 132 formed on the inner periphery of the sleeve body 11, and a transmission gear provided between the first gear 131 and the internal gear 132, the transmission gear externally engaging with the first gear 131 and internally engaging with the internal gear 132.
In this embodiment, the transmission gear is externally engaged with the first gear 131 to realize the reverse transmission rotation of the connection body 12, and the transmission gear is internally engaged with the internal gear 132 to enable the sleeve body 11 to rotate in the same-direction transmission with the transmission gear, so that the connection body 12 and the sleeve body 11 realize the reverse transmission connection, the structure is simple and reliable, and the whole transmission structure 13 is arranged in the installation channel in the sleeve body 11, the structure is simple, and the maintenance is easy. Compared with the scheme of bevel gear transmission, the structure does not need to turn, and occupies small space in the radial direction.
The specific structure of the transmission gear may be various, for example, the transmission gear may be a single gear disposed between the inner periphery of the sleeve body 11 and the outer periphery of the coupling body 12.
In the fan assembly 100, generally, the rotation speeds of the first wind wheel 101 and the second wind wheel 102 need to be the same, so that the fan assembly 100 achieves a better air supply effect. Therefore, in an embodiment, the transmission ratio between the transmission gear and the first gear 131, and between the transmission gear and the internal gear 132 can be designed to achieve the same transmission effect of the rotation speed of the first wind wheel 101 and the second wind wheel 102. Specifically, in the present embodiment, the transmission ratio between the first gear 131 and the transmission gear is a, the transmission ratio between the transmission gear and the internal gear 132 is b, and the product of a and b is 1. In this way, the rotation speed of the connecting body 12 is the same as that of the sleeve body 11, that is, the first wind wheel 101 and the second wind wheel 102 can rotate in the same rotation speed and in opposite directions.
It can be understood that the diameter of the side of the first gear 131 is smaller than that of the internal gear 132, if the transmission gear is a single gear, in order to realize the transmission ratio between the first gear 131 and the second gear 133, and the product of the transmission ratio between the third gear 134 and the internal gear 132 is 1, the size of the transmission gear is more limited, and the diameter of the transmission gear is larger, which results in a larger size of the sleeve body 11 in the radial direction, so that the shaft connecting structure has a larger radial size, occupies a larger space, and is not suitable for being installed in an axially extending air duct structure.
For this reason, in the present embodiment, with continuing reference to fig. 8, the transmission gear includes a second gear 133 and a third gear 134, the second gear 133 and the third gear 134 are coaxially and fixedly connected through a transmission shaft 135 extending along the first direction, the second gear 133 is externally engaged with the first gear 131, and the third gear 134 is internally engaged with the internal gear 132. It can be understood that, in the present embodiment, the second gear 133 and the third gear 134 are coaxially and fixedly connected through the transmission shaft 135, and do not rotate relatively therebetween, so that the rotation speeds are the same. At this time, the transmission ratio between the first gear 131 and the second gear 133, that is, the transmission ratio a between the first gear 131 and the transmission gear, and the transmission ratio between the third gear 134 and the internal gear 132, that is, the transmission ratio b between the transmission gear and the internal gear 132, where the product of a and b is 1, can achieve the same angular velocity between the first gear 131 and the internal gear 132, and the same rotational speed between the connecting body 12 and the sleeve body 11, thereby achieving the transmission connection between the first wind wheel 101 and the second wind wheel 102 with opposite rotation directions and the same rotational speed. Compared with the technical scheme of a single gear, the transmission gear provided by the embodiment comprises the second gear 133 and the third gear 134 which are arranged at intervals in the axial direction, the size design is more flexible, and the space occupied by the transmission gear in the radial direction is smaller. The shaft connecting device 10 is small in radial size, occupies a smaller space, and is suitable for being installed in an axially extending air duct structure.
Specific numerical values of the transmission ratio a between the first gear 131 and the second gear 133 and the transmission ratio b between the third gear 134 and the internal gear 132 are not limited, as long as the product of the two is 1, and the same rotation speed of the first wind wheel 101 and the second wind wheel 102 can be achieved. In one embodiment, the gear ratio 1/2 between the first gear 131 and the second gear 133, and the gear ratio between the third gear 134 and the internal gear 132 is 2. On one hand, the first wind wheel 101 and the second wind wheel 102 are coaxially connected in a reliable transmission mode at the same rotating speed and in opposite rotating directions, and on the other hand, the shaft sleeve connecting device is small in size in the radial direction and compact in structure.
On the basis of the above embodiment, the transmission gears are provided with a plurality of groups, and the plurality of groups of transmission gears are distributed at intervals along the circumferential direction of the first gear 131. So, the multiunit transmission gear pair connect body 12 to realize radial ascending multiple spot supporting, compare in single transmission gear's technical scheme, the multiunit transmission gear structure's that this embodiment provided setting makes connect body 12 with the supporting point between the sleeve body 11 increases, and biography power is more reasonable, and non-deformable causes the trouble. Preferably, the plurality of sets of transmission gears are uniformly distributed along the circumferential direction of the first gear 131 at intervals, so that the supporting points between the connecting body 12 and the sleeve body 11 are uniformly distributed, the force transmission between the connecting body 12 and the sleeve body 11 is more reasonable, and the transmission gears are not biased to one side in the first direction. In one embodiment, two sets of the transmission gears are provided, and the two sets of the transmission gears are distributed at two ends of the first gear 131 in the radial direction in an opposite manner.
Further, in order to stably support the connection body 12 and the transmission shaft 135. In an embodiment, referring to fig. 8, the shaft connecting device 10 further includes a first bearing 21, a second bearing 22 and a third bearing 23 axially spaced in the sleeve body 11, the connecting body 12 is rotatably mounted on the first bearing 21 and the second bearing 22, and two ends of the transmission shaft 135 are rotatably mounted on the second bearing 22 and the third bearing 23. In this way, the two ends of the transmission shaft 135 are stably supported by the second bearing 22 and the third bearing 23, and the connecting body 12 is stably supported by the first bearing 21 and the second bearing 22, so that the situation that the connecting body 12 or the transmission shaft 135 deviates to cause transmission failure is not easy to occur, and the service life of the shaft connecting device 10 is prolonged. The position of the connecting body 12 and the position of the sleeve body 11 in the axial direction are fixed relative to each other by the arrangement of the bearing.
The rotation stopping matching structure of the sleeve and the first wind wheel 101 is not limited, in an embodiment, referring to fig. 6 to 8, the sleeve body 11 has a connecting section 110, the connecting section 110 is used for being inserted into the rotating shaft hole 103 of the first wind wheel 101 along the first direction, and the shape of the connecting section 110 is adapted to the rotating shaft hole 103, for example, the connecting section may be a polygonal structure, so that the sleeve body 11 is connected with the first wind wheel 101 in a key manner. In this embodiment, the connecting section 110 and the rotating shaft hole 103 are sleeved in a non-relative-rotation manner, so that the sleeve body 11 is in transmission fit with the first wind wheel 101 in a key connection manner, and the wind wheel is simple and reliable in structure and convenient to assemble.
The rotation stopping matching structure of the connecting body 12 and the second wind wheel 102 is not limited, on the basis of the above embodiment, the connecting body 12 is formed with a key hole 120 extending along the first direction, and the key hole 120 is used for inserting a rotating shaft of the motor shaft 201 or the second wind wheel 102, so that the connecting body 12 is connected with the motor shaft 201 or the second wind wheel 102 in a key manner. In this embodiment, two embodiment modes are included, in one embodiment, please refer to fig. 5 and fig. 6, the motor 200 is disposed on a side of the second wind wheel 102 away from the first wind wheel 101, and the motor shaft 201 sequentially penetrates through the shaft hole on the second wind wheel 102 and the key hole 120 on the connecting body 12 along the first direction, so as to be respectively connected with the second wind wheel 102 and the connecting body 12 in a key manner, thereby realizing the coaxial fixed connection between the second wind wheel 102 and the connecting body 12. In this embodiment, the motor shaft 201 directly drives the second wind wheel 102 and the connecting body 12 to rotate, so that the transmission of the driving force is more uniform and reasonable, the driving resistance is smaller, and the transmission is more reasonable.
In another embodiment, the motor 200 is disposed on one side of the second wind wheel 102 far away from the first wind wheel 101, and the motor shaft 201 penetrates through a shaft hole on the second wind wheel 102 along the first direction and is connected with the second wind wheel 102 in a key manner, and a rotating shaft is convexly disposed on one side of the second wind wheel 102 facing the first wind wheel 101, and the rotating shaft is inserted into the key hole 120 on the connecting body 12, so that the second wind wheel 102 and the connecting body 12 are coaxially and fixedly connected. In this embodiment, the motor 200 and the connecting body 12 are driven by the second wind wheel 102, and indirectly cooperate with each other, so that the driving resistance is large, but the whole structure is easier to assemble, and the assembly efficiency is high.
In this embodiment, the shaft connecting structure is respectively connected and matched with the first wind wheel 101 and the second wind wheel 102 through the sleeve body 11 and the connecting body 12, so that the shaft connecting structure is simple and reliable in structure, convenient to assemble and disassemble, and high in assembling efficiency.
In an embodiment, the sleeve body 11 has a first end 111 and a second end 112 opposite to each other in the axial direction, the connecting section 110 is formed between the first end 111 and the second end 112, one end of the connecting body 12 is protruded from the first end 111 to the sleeve body 11, an aperture 121 of the key hole 120 faces a side of the connecting body 12 away from the sleeve body 11, and the aperture 121 is used for inserting the rotating shaft of the motor shaft 201 or the second wind wheel 102 into the key hole 120. In this way, in this embodiment, one end of the connecting body 12 protrudes from the first end 111 of the sleeve body 11, so that when assembling, an operator can easily align the aperture 121 with the rotating shaft of the motor shaft 201 or the second wind wheel 102, the operation is simpler, and the assembling efficiency is improved.
It can be understood that, in the assembled wind turbine assembly 100, the relative positions of the first wind turbine 101, the shaft connecting structure and the second wind turbine 102 in the first direction should be fixed, so that a limiting structure is required to achieve axial limitation among the three. The specific form of the limiting structure can be various, and in an embodiment, referring to fig. 5 to 8, a limiting portion 122 is formed at an end of the connecting body 12 away from the sleeve body 11, and the limiting portion 122 is used for limiting the relative movement between the second wind wheel 102 and the connecting body 12 in the first direction. Specifically, the limiting portion 122 may be a limiting surface formed on one side of the connection body 12 facing the second wind wheel 102, and the limiting surface is used for abutting against the second wind wheel 102, so as to realize axial limiting between the second wind wheel 102 and the connection body 12, and the structure is simple and reliable, easy to form, and low in production cost.
On the basis of the previous embodiment, please refer to fig. 6 and 8 in combination, the sleeve body 11 forms a limiting step surface 113 at the first end 111, a limiting nut 114 is sleeved at the second end 112, the limiting step surface 113 extends outward from the outer circumference of the sleeve body 11 in the radial direction, and the limiting nut 114 is adjustably disposed on the sleeve body 11 along the first direction, so that two ends of the rotating shaft hole 103 are clamped between the limiting step surface 113 and the limiting nut 114. Specifically, the sleeve body 11 is provided with threads on the periphery of the second end 112, and the limit nut 114 is in threaded fit connection with the sleeve body 11, so as to be adjustably disposed on the sleeve body 11 in the axial direction, when assembling, the sleeve body 11 is inserted into the rotating shaft hole 103 on the first wind wheel 101, then the limit nut 114 is sleeved on the sleeve body 11, and the limit nut 114 is rotated to a proper position, so that the second wind wheel 102 is clamped between the limit step surface 113 and the limit nut 114 at two ends of the rotating shaft hole 103, and the limit structure is simple and reliable and is easy to assemble.
In an embodiment, referring to fig. 7 and 8, in order to fix the motor shaft 201 and the connecting body 12 more firmly, the shaft connecting device 10 further includes a locking nut 123, the locking nut 123 is disposed at one end of the connecting body 12 protruding from the sleeve body 11, and is adjustably inserted into the keyhole 120 along a radial direction of the keyhole 120. In this way, the motor shaft 201 is reliably fixed in the key hole 120 by the lock nut 123, and the motor shaft 201 is prevented from loosening from the connecting body 12, so that the driving force of the motor shaft 201 is better transmitted, and abnormal noise is prevented from occurring.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (15)
1. A shaft connecting device for connecting a first wind wheel and a second wind wheel which rotate in a first direction and have opposite rotating directions, the shaft connecting device comprising:
the sleeve body is used for being connected with the first wind wheel in a rotation stopping matching mode, and the axial direction of the sleeve body extends along the first direction;
the connecting body is at least partially sleeved in the sleeve body, and a rotating shaft extending around the first direction is rotatably arranged relative to the sleeve body; and the number of the first and second groups,
the transmission structure is formed between the connecting body and the sleeve body, so that the connecting body and the sleeve body are in transmission connection in the opposite rotating directions.
2. The shaft connecting device according to claim 1, wherein the transmission structure includes a first gear formed on an outer periphery of the connecting body, an internal gear formed on an inner periphery of the sleeve body, and a transmission gear provided between the first gear and the internal gear, the transmission gear being externally engaged with the first gear and internally engaged with the internal gear.
3. The shaft connecting device according to claim 2, wherein a gear ratio between the first gear and the transmission gear is a, a gear ratio between the transmission gear and the internal gear is b, and a product of a and b is 1.
4. The shaft connecting device according to claim 3, wherein the transmission gear includes a second gear and a third gear, the second gear and the third gear being coaxially and fixedly connected by a transmission shaft extending in the first direction, the second gear being externally engaged with the first gear, and the third gear being internally engaged with the internal gear.
5. The shaft connecting device of claim 4 wherein the gear ratio between the first gear and the second gear 1/2 and the gear ratio between the third gear and the annulus gear is 2.
6. The shaft connecting device according to claim 3, wherein the transmission gears are provided in plural sets, and the plural sets of the transmission gears are spaced apart in a circumferential direction of the first gear.
7. The shaft connecting device according to any one of claims 1 to 6, wherein the sleeve body has a connecting section for insertion into a rotating shaft hole of the first wind wheel in the first direction so that the sleeve body is keyed with the first wind wheel.
8. The shaft connecting device according to claim 7, wherein the connecting body is formed with a key hole extending in the first direction, the key hole being for insertion of a rotating shaft of a motor shaft or the second wind wheel so that the connecting body is keyed with the motor shaft or the second wind wheel.
9. The shaft connecting device according to claim 8, wherein the sleeve body has a first end and a second end which are opposite to each other in the axial direction, the connecting section is formed between the first end and the second end, one end of the connecting body is protruded from the first end to the sleeve body, an opening of the key hole faces a side of the connecting body away from the sleeve body, and the opening is used for inserting a rotating shaft of the motor shaft or the second wind wheel into the key hole.
10. The shaft connecting device according to claim 9, wherein a stopper portion for restricting the relative movement of the second wind wheel and the connecting body in the first direction is formed at an end of the connecting body away from the sleeve body.
11. The shaft connecting device according to claim 10, wherein the sleeve body forms a limit step surface at the first end, a limit nut is fitted over the second end, the limit step surface extends radially outward from an outer periphery of the sleeve body, and the limit nut is adjustably provided to the sleeve body in the first direction so that both ends of the rotating shaft hole are sandwiched between the limit step surface and the limit nut.
12. The shaft connecting device according to claim 9, further comprising a lock nut provided at an end of the connecting body protruding from the sleeve body and adjustably inserted into the keyhole in a radial direction of the keyhole.
13. A fan assembly, comprising:
a first wind wheel and a second wind wheel;
the motor is in driving connection with the first wind wheel or the second wind wheel; and the number of the first and second groups,
a shaft connection according to any one of claims 1 to 12 connected to the first rotor and the second rotor respectively so that the first rotor is drivingly connected to the second rotor in a direction opposite to the direction of rotation.
14. The fan assembly of claim 13 wherein the motor, the second rotor, the shaft connection, and the first rotor are arranged in axial sequence.
15. An air conditioning apparatus comprising a fan assembly as claimed in claim 13 or 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122140073.9U CN215927883U (en) | 2021-09-06 | 2021-09-06 | Shaft connecting device, fan assembly and air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122140073.9U CN215927883U (en) | 2021-09-06 | 2021-09-06 | Shaft connecting device, fan assembly and air conditioning equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215927883U true CN215927883U (en) | 2022-03-01 |
Family
ID=80418988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122140073.9U Active CN215927883U (en) | 2021-09-06 | 2021-09-06 | Shaft connecting device, fan assembly and air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215927883U (en) |
-
2021
- 2021-09-06 CN CN202122140073.9U patent/CN215927883U/en active Active
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