CN218151582U

CN218151582U - Fan oscillating tooth box

Info

Publication number: CN218151582U
Application number: CN202222901752.8U
Authority: CN
Inventors: 廖其文
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2022-12-27
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to a fan tooth case of shaking head, it includes the tooth case, the input shaft, the output shaft, first drive gear and second drive gear, first drive gear is located on the input shaft, be equipped with the external screw thread on the input shaft, second drive gear locates on the output shaft, the tooth case is stretched out to the outer end of output shaft, be equipped with the power input hole on the tooth case, the inside wall of tooth case corresponds the first end of output shaft and the position of second end is equipped with first shaft hole and second shaft hole respectively, be equipped with the axle sleeve on the second shaft hole, the first end of output shaft and second end are inserted respectively and are located first shaft hole and axle sleeve in, the inside wall and the lateral wall of tooth case correspond first shaft hole position and are equipped with outer thickening boss and interior thickening boss respectively, the axle sleeve aligns with second shaft hole interference fit and center, first shaft hole runs through outer thickening boss, tooth case lateral wall and interior thickening boss, outer thickening boss and interior thickening boss support effectually to the first end of output shaft, thereby make the first end and the second end center of output shaft align, the transmission is stable.

Description

Fan oscillating tooth box

Technical Field

The utility model relates to a technical field of fan, in particular to fan tooth case of shaking head.

Background

The tooth case of shaking head of fan that has now generally includes tooth case, input shaft, output shaft, first drive gear and the connecting piece of shaking head, and first drive gear is located on the input shaft, be equipped with the external screw thread on the input shaft, second drive gear locates on the output shaft, external screw thread and the meshing of second drive gear, the tooth case is stretched out to the outer end of output shaft, the connecting piece of shaking head is connected in the outer end of output shaft, and the output shaft sets up with second drive gear is integrative, and on the both ends of input shaft were installed the tooth case through first axle sleeve and second axle sleeve, first axle sleeve and second axle sleeve installed on the through-hole on the tooth case, and the tooth case that shakes head of current weak point exists below: when the existing oscillating tooth box is assembled, the first shaft sleeve is installed, errors exist, the first shaft sleeve is easy to deviate from the through hole, the center of the first shaft sleeve cannot be aligned with the center of the through hole, when the second shaft sleeve is connected with the end part of the input shaft, the screw needs to be screwed, the screw is screwed, the second shaft sleeve also deviates from the through hole, the centrality at the two ends of the input shaft is inaccurate, and finally, when the input shaft rotates, the input shaft can rock, noises exist, and even transmission cannot be achieved. Therefore, the structure of the existing oscillating tooth box needs to be further improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stable fan tooth case of shaking head rotates.

The purpose of the utility model is realized like this:

the utility model provides a fan tooth case of shaking head, includes tooth case, input shaft, output shaft, first drive gear and second drive gear, and first drive gear locates on the input shaft, be equipped with the external screw thread on the input shaft, second drive gear locates on the output shaft, the external screw thread meshes with second drive gear, the tooth case is stretched out to the outer end of output shaft, be equipped with the power input hole on the tooth case, the inside wall of tooth case corresponds the first end of output shaft and the position of second end is equipped with first shaft hole and second shaft hole respectively, be equipped with the axle sleeve on the second shaft hole, the first end and the second end of output shaft insert respectively and locate first shaft hole and axle sleeve in, the inside wall and the lateral wall of tooth case correspond first shaft hole position and are equipped with outer thickening boss and interior thickening boss respectively, and the axle sleeve aligns with second shaft hole interference fit and center, outer thickening boss, tooth case lateral wall and interior thickening boss are run through to the first shaft hole, and outer thickening boss and interior thickening boss support effectually to the first end of output shaft to make the first end and the second end center of output shaft align, the transmission is stable.

The utility model can be further improved as follows.

The second transmission gear and the output shaft are made by plastic integrated molding, therefore, the utility model discloses production is easy, the equipment is convenient.

The tooth case includes box and case lid, be equipped with opening and location lug on the box, the case lid chucking is at the opening of box, the internal surface of case lid is equipped with the location cardboard, the one end of case lid offsets with the lateral wall of box, the location cardboard offsets with the lateral wall of location lug, consequently the utility model discloses a case lid can the chucking on the box, and the pre-installation is on the box, simple to operate.

And a first oil guide groove is arranged on the inner thickening boss.

The inside wall in first shaft hole is equipped with the second and leads the oil groove, first lead the oil groove and lead oil groove intercommunication with the second, the tip of pivot has been lubricated well to oil to make output shaft rotational stability.

The outer side wall of the shaft sleeve is in interference fit with the inner side wall of the second shaft hole, so that the shaft sleeve is firmly fixed on the second shaft hole.

The shaft sleeve is provided with a third shaft hole, and the second end of the output shaft extends into the third shaft hole.

Be equipped with the elastic arm on the lateral wall of axle sleeve, be equipped with the anticreep back-off on the elastic arm, the anticreep back-off is located the inboard in second shaft hole, and the anticreep back-off further prevents that the axle sleeve from deviating from the second shaft hole to make the axle sleeve firmly fix on the second shaft hole.

The utility model has the advantages as follows:

the utility model discloses an on first shaft hole and the axle sleeve on the tooth case were installed respectively to the first end of input shaft and second end, the first shaft hole is supporting the first end of input shaft well, axle sleeve and second shaft hole interference fit to make the axle sleeve align with the second end center of input shaft, finally ensure that the center at the both ends of input shaft can align, the input shaft is stable in rotation, does not have and rocks the noiselessness.

Drawings

Fig. 1 is a schematic structural view of the oscillating tooth box of the fan of the present invention.

Fig. 2 is a schematic structural view of another angle of the oscillating tooth box of the fan of the present invention.

Fig. 3 is a schematic structural diagram of the third angle of the oscillating tooth box of the fan of the present invention.

Fig. 4 is a schematic structural view of the oscillating gearbox of the fan of the present invention without a gearbox cover.

Fig. 5 is a top view of the oscillating tooth box of the fan of the present invention.

Fig. 6 isbase:Sub>A cross-sectional view atbase:Sub>A-base:Sub>A in fig. 5.

Fig. 7 is an exploded view of the oscillating tooth box of the fan of the present invention.

Fig. 8 is a schematic structural diagram of the box body of the present invention.

Fig. 9 is a schematic structural view of the shaft sleeve of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

In the first embodiment, as shown in fig. 1 to 9, a fan oscillating tooth box comprises a tooth box body 2, an input shaft 4, an output shaft 6, a first transmission gear 5, a second transmission gear 7 and an oscillating connecting piece 10, wherein a power input hole 8 and a power output hole 9 are formed in the tooth box body 2, the first transmission gear 5 is arranged on the input shaft 4, an external thread is formed in the input shaft 4, the second transmission gear 7 is arranged on the output shaft 6 and meshed with the second transmission gear 7, the outer end of the output shaft 6 extends out of the tooth box body 2 through the power output hole 9, the oscillating connecting piece 10 is detachably connected to the outer end of the output shaft 6, the second transmission gear 7 is arranged on the output shaft 6, and the second transmission gear 7 and the output shaft 6 are integrally formed by plastics.

The position that the inside wall of tooth case 2 corresponds first end and the second end of output shaft 6 is equipped with primary shaft hole 20 and secondary shaft hole 29 respectively, be equipped with axle sleeve 9 on the secondary shaft hole 29, the first end and the second end of output shaft 6 are inserted respectively and are located primary shaft hole 20 and axle sleeve 9 in, the inside wall and the lateral wall of tooth case 2 correspond primary shaft hole 20 position and are equipped with outer thickening boss 24 and interior thickening boss 23 respectively, primary shaft hole 20 runs through outer thickening boss 24, tooth case 2 lateral wall and interior thickening boss 23.

As a more specific technical solution of the present invention.

The gearbox 2 comprises a box body 21 and a box cover 22, wherein an opening and a positioning lug 28 are arranged on the box body, the box cover 22 is tightly arranged at the opening of the box body 21, a positioning clamping plate 27 is arranged on the inner surface of the box cover 22, one end of the box cover 22 is abutted against the side wall of the box body 21, and the positioning clamping plate 27 is abutted against the side wall of the positioning lug 28.

And a first oil guide groove 26 is arranged on the inner thickening boss.

The inside wall of first axle hole 20 is equipped with the second and leads oil groove 25, first lead oil groove 26 and second lead oil groove 25 intercommunication.

The outer side wall of the shaft sleeve 9 is in interference fit with the inner side wall of the second shaft hole 29.

A third shaft hole 92 is formed in the shaft sleeve 9, and the second end of the output shaft 6 extends into the third shaft hole 92.

And an elastic arm 91 is arranged on the outer side wall of the shaft sleeve 9, and an anti-falling back-off 93 is arranged on the elastic arm 91. The anticreep back-off is located the inboard in second shaft hole, and the anticreep back-off further prevents that the axle sleeve from deviating from the second shaft hole to make the axle sleeve firmly fix on the second shaft hole.

The outer end of the output shaft 6 is provided with a connecting screw hole 17, the oscillating connecting piece 10 is provided with a screw (not shown in the figure) and a connecting hole 16, and the screw passes through the connecting hole 16 and is in threaded connection with the connecting screw hole 17.

The utility model discloses when installing at the fan aircraft nose, a transmission shaft of fan passes through power input hole 8 and stretches into in the tooth case 2, and epaxial driving gear of transmission meshes with first drive gear 5 to drive input shaft 4 and rotate, the external screw thread on the input shaft 4 drives second drive gear 7 and rotates, and second drive gear 7 drives output shaft 6 and rotates, and output shaft 6 drives the connecting piece 10 of shaking the head and rotates, and the connecting piece 10 of shaking the head is connected with the fan aircraft nose, thereby drives the fan aircraft nose and shakes the head.

Claims

1. The utility model provides a fan tooth case of shaking head, includes tooth case (2), input shaft (4), output shaft (6), first drive gear (5) and second drive gear (7), and on input shaft (4) were located in first drive gear (5), be equipped with the external screw thread on input shaft (4), second drive gear (7) were located on output shaft (6), the external screw thread meshes with second drive gear (7), tooth case (2) are stretched out to the outer end of output shaft (6), be equipped with the power input hole on tooth case (2), characterized by, the inside wall of tooth case (2) corresponds the first end of output shaft (6) and the position of second end is equipped with first shaft hole (20) and second shaft hole (29) respectively, be equipped with axle sleeve (9) on second shaft hole (29), the first end and the second end of output shaft (6) are inserted respectively and are located in first shaft hole (20) and axle sleeve (9), the inside wall and the lateral wall of tooth case (2) correspond first end and are equipped with outer thickening boss (23) and interior boss (24) boss, boss (24) boss that thickens respectively, tooth case lateral wall (24) run through.

2. A fan oscillating tooth casing according to claim 1, characterized in that said second transmission gear (7) and said output shaft (6) are made of plastic by integral molding.

3. The oscillating gearbox of the fan according to claim 1, wherein the gearbox (2) comprises a box body (21) and a box cover (22), the box body (21) is provided with an opening and a positioning lug (28), the box cover (22) is tightly clamped on the opening of the box body (21), the inner surface of the box cover (22) is provided with a positioning clamping plate (27), one end of the box cover (22) is abutted against the side wall of the box body (21), and the positioning clamping plate (27) is abutted against the side wall of the positioning lug (28).

4. The oscillating gearbox of a fan according to claim 1, wherein said inner thickened boss (24) is provided with a first oil guiding groove (26).

5. The oscillating gearbox of fan according to claim 4, wherein the inner side wall of the first shaft hole (20) is provided with a second oil guiding groove (25), and the first oil guiding groove (26) is communicated with the second oil guiding groove (25).

6. The fan oscillating tooth box according to claim 1, characterized in that the outer side wall of said bushing (9) is interference fitted with the inner side wall of the second shaft hole (29).

7. The oscillating tooth box for fan according to claim 6, wherein said bushing (9) is provided with a third axial hole (91), and said second end of said output shaft (6) is inserted into said third axial hole (91).

8. The oscillating tooth box for fan according to claim 6 is characterized in that the outer side wall of said bushing (9) is provided with a resilient arm (92), said resilient arm is provided with an anti-falling back-off (93).