CN220956129U - Pitching head-shaking gear box device and fan - Google Patents

Abstract

The utility model relates to the technical field of electric fans, in particular to a pitching oscillating gearbox device and a fan, comprising a fixed component and a movable component, wherein the fixed component comprises a connecting shaft and a fixed gear, the fixed gear is fixedly connected with the connecting shaft, the movable component comprises a shell, a driver and a movable gear, the shell is provided with an inner cavity, the driver is fixedly connected with the shell and is connected with the movable gear in a matching way, and the connecting shaft stretches into the fixed gear and penetrates through the inner cavity; when the driver drives the movable gear, the movable gear rotates around the fixed gear, the movable gear drives the shell through the driver, so that the shell rotates around the fixed gear, and the positive pole and the negative pole of the driver are controlled to rotate, so that the shell can realize pitching and panning actions. The utility model utilizes the motion mechanism formed by the driver, the fixed part and the movable part, can realize the rotary motion of the mechanism, can realize orientation of a plurality of angles by combining a control circuit, and is suitable for pitching and swinging actions of various devices.

Description

Pitching head-shaking gear box device and fan

Technical Field

The utility model relates to the technical field of electric fans, in particular to a pitching oscillating gear box device and a fan.

Background

The electric fan is common ventilation and cooling equipment, is suitable for environments such as families, offices, commercial places, outdoor activities and the like, provides cool wind power and good air circulation for the environments, and helps to improve environmental comfort. The existing electric fans in the market are limited in wind direction adjusting range, common electric fans can only shake left and right and cannot pitch and shake, the positions and the directions of the electric fans need to be readjusted when wind directions of other angles are needed, the electric fans are not convenient to use, shaking directions are too few, a plurality of wind directions cannot be realized, wind power distribution is uneven, air circulation efficiency of the whole space is low, cooling ranges of the electric fans are limited, overall cooling effects are poor, and large-range and multi-angle blowing requirements of users are difficult to meet.

In order to overcome the above disadvantages, a pitching head gear box device and a fan need to be developed to meet the use demands of wide users.

Disclosure of utility model

Aiming at the problems that the shaking directions of the prior equipment are too few and a plurality of wind directions can not be realized, the utility model solves the technical problems by adopting the technical scheme that:

The pitching head gear box device comprises a fixed assembly and a movable assembly, wherein the fixed assembly comprises a connecting shaft and a fixed gear, and the fixed gear is fixedly connected to the connecting shaft;

The movable assembly comprises a shell, a driver and a movable gear which is used for being meshed with the fixed gear, wherein an inner cavity for accommodating the fixed gear and the movable gear is formed in the shell, the driver is fixedly connected to the shell and is in matched connection with the movable gear, the driver drives the movable gear to rotate, and the connecting shaft stretches into the fixed gear and penetrates through the inner cavity so that the fixed gear is arranged in the inner cavity;

When the driver drives the movable gear, the movable gear rotates around the fixed gear, the movable gear drives the shell through the driver, so that the shell rotates around the fixed gear, and the shell realizes pitching and panning actions by controlling the positive pole and the negative pole of the driver to rotate.

Further, in order to avoid collision between external accessories caused by rotation of the device, the fixed gear is provided with a pitching limiting surface and a pitching limiting surface, the shell is provided with a limiting boss for limiting the rotation angle of the device, and the limiting boss reaches a pitching limiting position when contacting with the pitching limiting surface; and the limit boss is in contact with the pitching limiting surface to reach the pitching limiting position.

Further, in order to avoid collision between external fittings caused by rotation of the device, the limiting boss and the shell are integrally formed, and the limiting boss is arranged on one side of the inner cavity close to the edge and protrudes towards the direction of the fixed gear.

Further, in order to improve durability and the maintenance of device part, fixed subassembly still includes the axle sleeve, the axle sleeve is equipped with a plurality of stopper, the casing is equipped with a plurality of spacing grooves, the spacing groove with the stopper cooperation is connected, so that the casing with axle sleeve fixed connection, the connecting axle follow one side of axle sleeve stretches into and passes the axle sleeve and with axle sleeve swing joint.

Further, in order to facilitate the installation and the disassembly of the device parts, the connecting shaft comprises a first connecting shaft and a second connecting shaft, the first connecting shaft is provided with a connecting groove, the second connecting shaft is provided with a connecting boss, and the connecting groove is connected with the connecting boss in a matched manner so that the first connecting shaft is tightly connected with the second connecting shaft.

Further, in order to facilitate the wire passing inside the device, the first connecting shaft is provided with a wire passing groove.

Further, for better balancing the stress during the operation of the device, the fixing assembly further comprises a torsion spring for balancing the stress, the shell is provided with a spring groove for limiting the rotation angle of the torsion spring, and the fixing gear is provided with a spring clearance groove.

Further, in order to improve the adaptability adaptation more different products of device, movable component still includes output device and mounting bracket, the mounting bracket is equipped with and is used for installing output device's mounting hole, mounting bracket fixed connection in the casing and with output device cooperation is connected.

Further, in order to facilitate the installation and the disassembly of the device parts, the installation frame is provided with a clearance groove which is convenient to pass through the connecting shaft.

An electric fan comprising a frame provided with a pitching oscillating gearbox arrangement as defined in any one of the preceding claims.

The beneficial effects of the utility model are as follows:

1. The utility model utilizes the motion mechanism formed by the driver, the fixed gear and the movable gear, can realize the rotary motion of the mechanism, can realize orientation of a plurality of angles by combining a control circuit, and is suitable for pitching and swinging actions of various devices.

2. The connecting shaft is disassembled to form two parts, so that the device can be quickly accessed to the inside of the device by disassembling the connecting shaft in future, the disassembling time is saved, and the maintenance efficiency is improved.

3. According to the utility model, the wire passing groove is formed in the connecting shaft in a hollow mode, so that control wires in the device can pass through the wire passing groove in a concentrated mode, the structure is compact, the appearance volume of a product is reduced, the device is light and small, the appearance is kept attractive, and the circuit arrangement and storage are facilitated.

4. The torsion spring balance device utilizes the integral stress of the torsion spring balance device, so that the device is more stable in the rotation process, the shaking generated by rotation is reduced, and the stability and durability of the device are improved.

5. The utility model realizes that a plurality of wind directions are adjustable by combining with the electric fan, and can provide more uniform wind distribution for the whole space, so that air can better circulate and circulate, thereby providing all-round comfort and cooling effect and improving the convenience and comfort of the electric fan.

The utility model will be further described with reference to the drawings and detailed description.

Drawings

Fig. 1 is a perspective view of a tilting head gearbox device of the present utility model.

Fig. 2 is a front view of a tilting head gear box assembly according to the present utility model.

Fig. 3 is a perspective view of a tilt head gear box assembly of the present utility model.

Fig. 4 is a perspective view of an output device of the pitching head gear box device of the present utility model.

Fig. 5 is an exploded view of a tilting head gearbox assembly according to the present utility model.

Fig. 6 is an exploded view of a tilting head gearbox assembly according to the present utility model.

Fig. 7 is a side view of a fan of a tilting head gear box assembly of the present utility model.

Fig. 8 is a perspective view of a fan of a pitching head gear box device of the present utility model.

Detailed Description

Embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 6, a pitching head gear box device comprises a fixed assembly 1 and a movable assembly 2, wherein the fixed assembly 1 comprises a connecting shaft 11 and a fixed gear 12, and the fixed gear 12 is fixedly connected with the connecting shaft 11;

the movable assembly 2 comprises a shell 21, a driver 22 and a movable gear 23 for meshing with the fixed gear 12, wherein an inner cavity 211 for accommodating the fixed gear 12 and the movable gear 23 is formed in the shell 21, the driver 22 is fixedly connected to the shell 21 and is matched and connected with the movable gear 23, the driver 22 drives the movable gear 23 to rotate, and the connecting shaft 11 extends into the fixed gear 12, passes through the inner cavity 211 and is connected with the shell 21, so that the fixed gear 12 is arranged in the inner cavity 211;

When the driver 22 drives the movable gear 23, the movable gear 23 rotates around the fixed gear 12, the movable gear 23 drives the housing 21 through the driver 22, so that the housing 21 rotates around the fixed gear 12, and the housing 21 realizes pitching and panning motions by controlling the positive and negative poles of the driver 22.

Specifically, in some embodiments, the fixed gear 12 is a sector gear, the movable gear 23 is a cylindrical gear, the movable gear 23 is meshed with the fixed gear 12 and rotates clockwise or anticlockwise around the fixed gear 12, and the gear has the advantages of high transmission efficiency, strong torque transmission capability, high transmission precision, stability and durability.

Preferably, in some embodiments, the driver 22 is a stepper motor, and by providing an appropriate electrical signal sequence to the stepper motor, the stepper motor can be controlled to rotate according to a specified sequence of stepping angles, so that the pitch angle of the device can be stably adjusted, and the stepper motor has the advantages of precise control, high torque and low purchase cost.

As shown in fig. 1, 2, 5 and 6, the fixed gear 12 is provided with a pitch limiting surface 121 and a pitch limiting surface 122, the housing 21 is provided with a limiting boss 213 for limiting the rotation angle of the housing, and the limiting boss 213 reaches a pitch limiting position when contacting with the pitch limiting surface 121; the limit boss 213 reaches the pitch limit position when contacting the pitch limit surface 122.

Specifically, in the present embodiment, when the housing 21 rotates around the fixed gear 12, the limit boss 213 contacts the pitch limit surface 121, and the housing 21 rotates clockwise by a maximum angle of 90 degrees; when the housing 21 rotates around the fixed gear 12, the limit boss 213 contacts with the pitch limit surface 122, and the housing 21 rotates counterclockwise by a maximum angle of 7 degrees.

As shown in fig. 1 and 2, the limiting boss 213 is integrally formed with the housing 21, and the limiting boss 213 is disposed on a side of the inner cavity 211 near the edge and protrudes toward the fixed gear 12.

By adopting the design, the rotation range of the shell 21 around the fixed gear 12 can be effectively limited, the maximum angle of pitching head can be determined according to the requirement, and the conditions of collision, unbalance, waste of rotation space and the like caused by excessive rotation of other products combined with the device are avoided.

As shown in fig. 5 and 6, the fixing assembly 1 further includes a shaft sleeve 13, the shaft sleeve 13 is provided with a plurality of limiting blocks 131, the housing 21 is provided with a plurality of limiting grooves 214, the limiting grooves 214 are cooperatively connected with the limiting blocks 131, so that the housing 21 is fixedly connected with the shaft sleeve 13, and the connecting shaft 11 extends into and passes through the shaft sleeve 13 from one side of the shaft sleeve 13 and is movably connected with the shaft sleeve 13.

Specifically, in some embodiments, the stopper 131 is designed by using a buckle, and a chamfer slope is provided at a corner of the block, so that the stopper 131 is skillfully connected with the housing 21 during installation, and the stopper has the advantages of guiding and sliding in, and is convenient to install and compact in structure.

As shown in fig. 5 and 6, the connection shaft 11 includes a first connection shaft 111 and a second connection shaft 112, the first connection shaft 111 is provided with a connection groove 1111, the second connection shaft 112 is provided with a connection boss 1121, and the connection groove 1111 is cooperatively connected with the connection boss 1121 so that the first connection shaft 111 is tightly connected with the second connection shaft 112. By adopting such design, when the device is assembled and disassembled, the first connecting shaft 111 and the second connecting shaft 112 are disassembled, and the mounting frame 25 can be directly taken out to enter the inner space, so that convenience in maintenance and disassembly of the device is improved, and the disassembly efficiency is improved.

As shown in fig. 5 and 6, the first connecting shaft 111 is provided with a wire passing groove 1112. By adopting the design, the control circuit accessed outside the device can enter the internal space of the device through the wire passing groove 1112, so that the control circuit is conveniently distributed inside the device, the external wiring is optimized into the internal wire passing, the whole attractive appearance is improved, and the wiring length is shortened.

As shown in fig. 1 to 6, the fixing assembly 1 further includes a torsion spring 14 for balancing force, the housing 21 is provided with a spring slot 215 for limiting the rotation angle of the torsion spring 14, and the fixing gear 12 is provided with a spring accommodating cavity 123.

Specifically, in some embodiments, when the device makes a pitch motion, the torsion spring 14 is compressed by a downward force generated by the pitch motion, and the torsion spring 14 provides a pitch resilience force after the end of the pitch motion to reduce the load on the driver 22 and increase the swing efficiency; when the device makes a pitching action, the torsion spring 14 is pulled by the upward pulling force generated by the pitching action, and after the pitching action is finished, the torsion spring 14 provides a pitching resilience force to lighten the load of the driver 22 and accelerate the rotation efficiency; the torsion spring 14 improves the stress balance generated in the operation process of the device through the rebound characteristic of the torsion spring, reduces the vibration generated by the rotation and engagement of the device, and improves the operation stability of the device.

As shown in fig. 4 to 6, the movable assembly 2 further includes an output device 24 and a mounting bracket 25, wherein the mounting bracket 25 is provided with a mounting hole 251 for mounting the output device 24, and the mounting bracket 25 is fixedly connected to the housing 21 and is cooperatively connected with the output device 24.

Specifically, in some embodiments, the output device 24 is a dc motor, and the dc motor is powered by a dc power source, and generates a rotational force through interaction of a magnetic field and a current inside the motor, so that the rotational speed is adjustable, the load capacity is high, and the adjustment is convenient. Meanwhile, the noise generated during the running of the direct current motor is relatively low, and the direct current motor has the characteristic of stable running, so that noise interference in the using process is reduced, vibration can be reduced, and more comfortable fan experience is provided.

As shown in fig. 4 to 6, the mounting frame 25 is provided with a clearance groove 252 which is convenient to pass through the connecting shaft 11. By adopting such design, when the device is installed and disassembled, the second connecting shaft 112 is disassembled, and the installation frame 25 can be directly taken out to enter the inner space by combining the empty avoidance grooves 252, so that the convenience of device maintenance and disassembly is improved, and the disassembly efficiency is improved.

An electric fan as shown in fig. 7 and 8 comprises a frame 3, said frame 3 being provided with a pitching head gear box arrangement as described above.

Specifically, in some embodiments, the electric fan is combined with the pitching head gear box device, the device is fixedly connected to the fan support by using connecting shafts extending from two ends, and the pitching swing of the device and the left and right swing of the electric fan are linked, so that the swinging range of the electric fan is enlarged, a plurality of wind directions can be realized, more uniform wind distribution is provided for the whole space, so that air can better circulate and circulate, thereby providing omnibearing comfort and cooling effects, and improving the convenience and comfort of the electric fan.

As shown in fig. 1 to 8, embodiment 1 of the present utility model is as follows:

Placing the housing 21 horizontally by taking the plane of the spring slot 215 as the bottom, wherein the inner cavity 211 is provided with a first through hole 2111 and a second through hole 2112, the shaft sleeve 13 is placed in the side of the inner cavity opening 212 and is coaxial with the first through hole 2111, the limiting block 131 is connected with the limiting groove 214 in a matched manner so that the shaft sleeve 13 is tightly connected with the first through hole 2111, the first connecting shaft stretches into the first through hole 2111 from the side of the inner cavity opening 212 and is connected with the shaft sleeve 13 in a matched manner, the torsion spring 14 stretches into the first connecting shaft 111 from the side of the inner cavity opening 212 and stretches into the spring slot 215, an external control wire stretches into the wire passing slot 1112, the control wire passes through the wire passing slot 1112 and enters the housing 21, and the fixed gear 12 stretches into the first connecting shaft 111 from the side of the inner cavity opening 212 and is connected with the first connecting shaft 111 in a matched manner so that the fixed gear 12 rotates synchronously with the first connecting shaft 111;

The driver 22 is provided with a driving shaft 221, the driving shaft 221 extends into the second through hole 2112 from the other side of the inner cavity 211, the driver 22 is tightly connected with the plane of the other side of the inner cavity opening 212, a control wire is connected into the driver 22, the movable gear 23 is cooperatively connected with the driving shaft 221 from one side of the inner cavity opening 212, so that the movable gear 23 and the driving shaft 221 synchronously rotate, and the fixed gear 12 is meshed with the movable gear 23;

One end of the mounting bracket 25 provided with the mounting hole 251 is close to the first through hole 2111 and enables the empty avoiding groove 252 to downwards penetrate through the first connecting shaft 111, then the mounting bracket 25 is matched and connected with the shell 21, and the connecting boss 1121 is matched and connected with the connecting groove 1111 to enable the first connecting shaft 111 to be tightly connected with the second connecting shaft 112; the output equipment 24 is matched and connected with the mounting hole 251 so that the output equipment 24 is tightly connected with the mounting frame 25, synchronous swinging of the output equipment 24 and the shell 21 is realized, then a control wire is connected into the output equipment 24, and the integral mounting of the device is completed;

the frame 3 of the electric fan comprises a fan bracket 31, fan blades 32, a fan blade protecting cover 33 and a machine body shell 34; the output device 24 is provided with an output shaft 241.

The first connecting shaft 111 and the second connecting shaft 112 are respectively connected with the fan bracket 31 in a matched manner, an output shaft 241 stretches into the fan blade 32 and is connected with the fan blade 32 in a matched manner, so that the output shaft 151 and the fan blade 32 rotate synchronously, the fan blade 32 is wrapped by the fan blade protection cover 33 and is connected with the fan bracket 31 in a matched manner, the machine body shell 34 is arranged outside the device, the fan bracket 31 is provided with a control panel 311, a control wire of the control panel 311 is connected with the output equipment 24 and the driver 22 and is adjustable, and the combination of the device and the electric fan is completed.

The working principle of the electric fan in this embodiment is as follows:

On the basis of the embodiment, when the electric fan performs pitching and panning, a corresponding panning command is given to the control device in a manual or remote control mode, and the control device controls the rotation of the driver 22, so that the pitching and panning functions of the electric fan are achieved.

Specifically, when the control panel 311 receives the control signal, the driver 22 is controlled to operate by the control wire, so that the driving shaft 221 rotates clockwise or counterclockwise;

When the driving shaft 221 rotates clockwise, looking at the side of the inner cavity opening 212, the movable gear 23 is meshed with the fixed gear 12 and rotates clockwise around the fixed gear 12, the movable gear 23 drives the shell 21 through the driver 22, so that the shell 21 rotates clockwise relative to the first connecting shaft 111, and the output device 24 rotates clockwise relative to the first connecting shaft 111, namely the electric fan performs the upward swinging motion, when the upward swinging limiting surface 121 touches the limiting boss 213, the limiting boss 213 limits the rotation range of the fixed gear 12, and the driving shaft 221 stops rotating, so that the device reaches the upward swinging swing limit;

when the driving shaft 221 rotates anticlockwise, looking at the side of the inner cavity opening 212, the movable gear 23 is meshed with the fixed gear 12 and rotates anticlockwise around the fixed gear 12, the movable gear 23 drives the shell 21 through the driver 22, so that the shell 21 rotates anticlockwise relative to the first connecting shaft 111, and the output device 24 is driven to rotate anticlockwise relative to the first connecting shaft 111, namely the electric fan performs downward swinging, when the pitching limiting surface 122 touches the limiting boss 213, the limiting boss 213 limits the rotation range of the fixed gear 12, and the driving shaft 221 stops rotating, so that the device reaches the swinging limit of downward swinging;

On the basis of the embodiment, the control panel 311 is arranged to control the forward and reverse poles of the driver 22, i.e. the driving shaft 221 to make clockwise and anticlockwise reciprocating rotation, so that the electric fan achieves the function of pitching and reciprocating head.

A swing mechanism 312 capable of swinging the head left and right is arranged in the control panel 311 of the electric fan.

When the electric fan swings left and right, a corresponding swinging instruction is given to the control device in a manual or remote control mode, and the control device controls the swinging mechanism 312 to rotate, so that the function of swinging left and right in a reciprocating manner of the electric fan is achieved. The electric fan achieves the swinging range of a plurality of wind directions at multiple angles by matching with the pitching reciprocating head swinging function made by the device, achieves the aim of multi-wind direction heat dissipation and blowing, ensures uniform wind power distribution, improves the air circulation efficiency and enlarges the heat dissipation range.

The utility model utilizes the motion mechanism formed by the driver, the fixed gear and the movable gear, can realize the rotary motion of the mechanism, can realize orientation of a plurality of angles by combining a control circuit, and can make pitching and swinging motions suitable for various devices; the device is characterized in that the connecting shaft is disassembled and consists of two parts, so that the device can be more quickly accessed to the inside of the device by disassembling the connecting shaft for later maintenance, the disassembling time is saved, and the maintenance efficiency is improved; the connecting shaft is hollow, so that the control wires in the device can pass through the connecting shaft in a concentrated manner, the structure is compact, the appearance volume of the product is reduced, the product is portable and small, the appearance is attractive, and the circuit arrangement and storage are facilitated; the device utilizes torsion spring balance device's whole atress to make the device more steady in the rotation in-process, reduce the rocking that rotates and produce, improve device steadiness and durability. The utility model combines the electric fan to realize the function of adjusting a plurality of wind directions, and can provide more uniform wind distribution for the whole space, which enables air to circulate better, thereby providing all-round comfort and cooling effect and improving the convenience and comfort of the electric fan.

The foregoing examples are provided to further illustrate the technical contents of the present utility model for the convenience of the reader, but are not intended to limit the embodiments of the present utility model thereto, and any technical extension or re-creation according to the present utility model is protected by the present utility model. The protection scope of the utility model is subject to the claims.

Claims (10)

1. The utility model provides a every single move gear box device of shaking head which characterized in that: the device comprises a fixed assembly (1) and a movable assembly (2), wherein the fixed assembly (1) comprises a connecting shaft (11) and a fixed gear (12), and the fixed gear (12) is fixedly connected to the connecting shaft (11);

The movable assembly (2) comprises a shell (21), a movable gear (23) used for being meshed with the fixed gear (12) and a driver (22) used for driving the movable gear (23) to rotate, an inner cavity (211) used for accommodating the fixed gear (12) and the movable gear (23) is formed in the shell (21), the driver (22) is fixedly connected to the shell (21) and is in matched connection with the movable gear (23), and the connecting shaft (11) stretches into the fixed gear (12) and penetrates through the inner cavity (211) so that the fixed gear (12) is arranged in the inner cavity (211);

When the driver (22) drives the movable gear (23), the movable gear (23) rotates around the fixed gear (12), the movable gear (23) drives the shell (21) through the driver (22) so that the shell (21) rotates around the fixed gear (12), and the shell (21) realizes pitching and panning actions by controlling the positive pole and the negative pole of the driver (22) to rotate.

2. A tilting head gearbox device according to claim 1, characterised in that: the fixed gear (12) is provided with a pitching limiting surface (121) and a pitching limiting surface (122), the shell (21) is provided with a limiting boss (213) for limiting the rotation angle of the shell, and the limiting boss (213) reaches a pitching limiting position when contacting with the pitching limiting surface (121); the limit boss (213) reaches the limit position of the pitching when contacting with the pitching limit surface (122).

3. A tilting head gearbox device according to claim 2, characterised in that: the limiting boss (213) and the shell (21) are integrally formed, and the limiting boss (213) is arranged on one side, close to the edge, of the inner cavity (211) and protrudes towards the direction of the fixed gear (12).

4. A tilting head gearbox device according to claim 1, characterised in that: the fixed assembly (1) further comprises a shaft sleeve (13), the shaft sleeve (13) is provided with a limiting block (131), the shell (21) is provided with a limiting groove (214), the limiting groove (214) is connected with the limiting block (131) in a matched mode, the shell (21) is fixedly connected with the shaft sleeve (13), and the connecting shaft (11) extends into and penetrates through one side of the shaft sleeve (13) and is movably connected with the shaft sleeve (13).

5. A tilting head gearbox device according to claim 1, characterised in that: the connecting shaft (11) comprises a first connecting shaft (111) and a second connecting shaft (112), the first connecting shaft (111) is provided with a connecting groove (1111), the second connecting shaft (112) is provided with a connecting boss (1121), and the connecting groove (1111) is connected with the connecting boss (1121) in a matched mode so that the first connecting shaft (111) is tightly connected with the second connecting shaft (112).

6. A tilting head gearbox device according to claim 5, characterised in that: the first connecting shaft (111) is provided with a wire passing groove (1112).

7. A tilting head gearbox device according to claim 1, characterised in that: the fixed assembly (1) further comprises a torsion spring (14) for balancing stress, the shell (21) is provided with a spring groove (215) for limiting the rotation angle of the torsion spring (14), and the fixed gear (12) is provided with a spring accommodating cavity (123).

8. A tilting head gearbox device according to claim 1, characterised in that: the movable assembly (2) further comprises output equipment (24) and a mounting frame (25), wherein the mounting frame (25) is provided with a mounting hole (251) for mounting the output equipment (24), and the mounting frame (25) is fixedly connected to the shell (21) and is connected with the output equipment (24) in a matched mode.

9. A tilting head gear box arrangement according to claim 8, characterized in that: the mounting frame (25) is provided with a clearance groove (252) which is convenient to penetrate through the connecting shaft (11).

10. A fan comprising a housing (3), characterized in that: the frame (3) is provided with a tilting gear box arrangement according to any one of claims 1-9.