Shaft protection mechanism of air conditioner air door actuator

Abstract

The utility model discloses a shaft protection mechanism of an air conditioner air door actuator, and particularly relates to the technical field of actuators, the shaft protection mechanism comprises a top shell and a bottom shell arranged at the bottom of the top shell, a gear piece of the air conditioner air door actuator is installed between the top shell and the bottom shell, and a supporting assembly used for supporting the gear piece is arranged between the top shell and the bottom shell; the supporting assembly comprises a shaft body arranged between the top shell and the bottom shell, the shaft body is sleeved with the gear piece, and an installation piece with the T-shaped section is installed at the bottom end of the shaft body. The driving gear and the driven gear are supported and limited through the shaft body, the driven gear is supported and limited through nesting matching of the supporting ring and the positioning ring, and the driving gear is supported and limited through nesting matching of the fixing ring and the limiting ring, so that a gear piece can be supported in multiple directions, the transmission stability of the gear piece is guaranteed, and the service life of the gear piece is prolonged. And due to multi-direction supporting, loads and stress can be effectively dispersed, and the probability that the gear piece and the shaft body are broken is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of actuators, and more specifically to a shaft protection mechanism of an air conditioner damper actuator. Background Art

[0002] The air conditioning damper actuator is a device used to adjust the air volume in the air conditioning system. It affects the direction and amount of air flow by controlling the opening, closing and angle adjustment of the damper, thereby meeting the temperature and comfort requirements of different areas.

[0003] The shaft protection mechanism of the air conditioner damper actuator is a very important component, and its main function is to protect the drive shaft from damage. As shown in the prior art of publication number CN205836445U, although this prior art sets at least one groove wall of the arc-shaped groove to abut against an arc wall of the arc-shaped protrusion, when the transmission gear is offset by external force, the groove wall of the arc-shaped groove abuts against the arc wall of the arc-shaped protrusion, eliminating part of the axial eccentric force on the gear shaft, and at the same time axially limiting the transmission gear, limiting the transmission gear from pushing the gear shaft to axially offset, and avoiding the gear shaft from breaking. However, this prior art is still mainly supported and limited by the gear shaft, resulting in the gear shaft still bearing most of the stress, and thus still prone to breakage, which makes this technical solution have certain limitations. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a shaft protection mechanism for an air-conditioning damper actuator. Through the nested cooperation of the support ring and the positioning ring with the limit ring and the fixing ring, the load and stress of the shaft can be dispersed, thereby reducing the occurrence of shaft breakage to solve the problems arising in the above-mentioned background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a shaft protection mechanism for an air conditioner damper actuator, comprising a top shell and a bottom shell provided at the bottom of the top shell, a gear member of the air conditioner damper actuator being mounted between the top shell and the bottom shell, and a support assembly for supporting the gear member being provided between the top shell and the bottom shell;

[0006] The support assembly includes a shaft body provided between the top shell and the bottom shell, the gear member is sleeved on the outside of the shaft body, a mounting member with a T-shaped cross section is installed at the bottom end of the shaft body, and a support ring sleeved on the outside of the shaft body is installed on the top of the mounting member, and a positioning ring is sleeved on the outside of the top end of the support ring;

[0007] A limiting ring is provided on the top of the positioning ring, and a fixing ring is provided inside the limiting ring. The top of the fixing ring is fixed to the top of the inner cavity of the top shell.

[0008] In a preferred embodiment, the gear component includes a main gear and a slave gear installed at the bottom of the main gear, and the main gear and the slave gear are both sleeved on the outside of the shaft; the bottom end of the limiting ring is fixed to the top of the main gear, and the top end of the positioning ring is fixed to the bottom of the slave gear. Through the connection between the limiting ring and the main gear, the fixing ring can limit and fix the main gear by means of nesting with the limiting ring, and the connection between the positioning ring and the slave gear allows the support ring to limit and fix the slave gear by means of the positioning ring, so that the gear component can be supported from multiple sides to ensure the stability of the gear component.

[0009] In a preferred embodiment, a mounting hole with a T-shaped cross-section is provided at the bottom of the bottom shell, and the mounting piece is provided inside the mounting hole. Through the provision of the mounting hole, a worker can remove the mounting piece and the shaft thereon through the mounting hole.

[0010] In a preferred embodiment, the outer diameter of the support ring is equal to the top diameter of the mounting hole. By setting the outer diameter of the support ring equal to the top diameter of the mounting hole, the support ring can be taken out through the mounting hole.

[0011] In a preferred embodiment, a plurality of fasteners are provided at the bottom end of the mounting member, and the plurality of fasteners are evenly spaced apart. The top ends of the fasteners pass through the mounting member and extend into the interior of the bottom shell. The fasteners are threadedly connected to the bottom shell. The threaded connection between the fasteners and the bottom shell facilitates the fixing of the mounting base inside the bottom shell, thereby ensuring the stability of the shaft body, and also facilitates the disassembly of the mounting member to remove the shaft body for maintenance or replacement.

[0012] In a preferred embodiment, a plurality of spaced-apart fastening bolts are provided on the outside of the bottom end of the top shell, and the top shell and the bottom shell are fixed together by the fastening bolts. The top shell and the bottom shell are installed and fixed by the fastening bolts, thereby ensuring the stability of the connection between the top shell and the bottom shell. At the same time, it is also convenient for staff to disassemble the top shell and the bottom shell, and facilitate the inspection and maintenance of structures such as gear parts.

[0013] The technical effects and advantages of this utility model are:

[0014] 1. The main gear and the slave gear are supported and limited by the shaft, and the slave gear is supported and limited by the nesting cooperation of the support ring and the positioning ring. The fixing ring supports and limits the main gear by means of the nesting cooperation with the limiting ring. In this way, the gear parts can be supported from multiple angles to ensure the transmission stability of the gear parts. The multiple support can effectively disperse the load and stress, thereby reducing the probability of the gear parts and the shaft body breaking and ensuring the performance of the shaft body and the gear parts.

[0015] 2. Through the detachable connection between the mounting part and the bottom shell, the staff can remove the fasteners to take out the mounting part and the shaft body, which makes it easier for the staff to inspect, maintain or replace the shaft body and avoids large-scale disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side sectional view of the top shell of the utility model;

[0018] Figure 3 This is the main gear front view of the present utility model;

[0019] Figure 4 This is a side sectional view of the bottom shell of the present utility model;

[0020] Figure 5 It is a side sectional view of the mounting hole of the utility model.

[0021] The accompanying drawings are marked as follows: 1. top shell; 2. bottom shell; 3. main gear; 4. shaft; 5. mounting piece; 6. support ring; 7. positioning ring; 8. limit ring; 9. fixing ring; 10. slave gear; 11. mounting hole; 12. fastener; 13. fastening bolt. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Refer to the instruction manual Figure 1-5 The utility model provides a shaft protection mechanism for an air conditioner damper actuator, comprising a top shell 1 and a bottom shell 2 provided at the bottom of the top shell 1, a gear component of the air conditioner damper actuator is installed between the top shell 1 and the bottom shell 2, and a support assembly for supporting the gear component is provided between the top shell 1 and the bottom shell 2;

[0024] like Figure 2-4 As shown, the support assembly includes a shaft body 4 arranged between the top shell 1 and the bottom shell 2, the gear part is sleeved on the outside of the shaft body 4, the bottom end of the shaft body 4 is installed with a mounting member 5 with a T-shaped cross-section, and the top of the mounting member 5 is installed with a support ring 6 sleeved on the outside of the shaft body 4, and the top of the support ring 6 is sleeved on the outside of the top end; a positioning ring 7 is provided on the top of the positioning ring 7, and a limiting ring 8 is provided on the top of the limiting ring 8, and a fixing ring 9 is provided inside the limiting ring 8, and the top of the fixing ring 9 is fixed together with the top of the inner cavity of the top shell 1.

[0025] like Figure 2 and 3 As shown, the gear component includes a main gear 3 and a slave gear 10 installed at the bottom of the main gear 3, and the main gear 3 and the slave gear 10 are both sleeved on the outside of the shaft body 4; the bottom end of the limiting ring 8 is fixed to the top of the main gear 3, and the top end of the positioning ring 7 is fixed to the bottom of the slave gear 10. Through the connection between the limiting ring 8 and the main gear 3, the fixing ring 9 can limit and fix the main gear 3 by means of the nesting cooperation with the limiting ring 8, and the connection between the positioning ring 7 and the slave gear 10 allows the support ring 6 to limit and fix the slave gear 10 by means of the positioning ring 7, so that the gear component can be supported from multiple aspects to ensure the stability of the gear component.

[0026] like Figure 4 and 5 As shown, a mounting hole 11 with a T-shaped cross-section is provided at the bottom of the bottom shell 2, and the mounting member 5 is arranged inside the mounting hole 11. Through the setting of the mounting hole 11, the staff can remove the mounting member 5 and the shaft 4 thereon through the mounting hole 11. The outer diameter of the support ring 6 is equal to the top diameter of the mounting hole 11. By setting the outer diameter of the support ring 6 to be equal to the top diameter of the mounting hole 11, the support ring 6 can be removed through the mounting hole 11.

[0027] like Figure 3 and 4 As shown, a plurality of fasteners 12 are provided at the bottom end of the mounting member 5, and the plurality of fasteners 12 are evenly spaced apart. The top end of the fasteners 12 passes through the mounting member 5 and extends to the inside of the bottom shell 2. The fasteners 12 are threadedly connected to the bottom shell 2. The threaded connection between the fasteners 12 and the bottom shell 2 facilitates the fixing of the mounting base inside the bottom shell 2, thereby ensuring the stability of the shaft body 4, and also facilitates the disassembly of the mounting member 5 to remove the shaft body 4 for maintenance or replacement.

[0028] like Figure 1 and 2 As shown, a plurality of spaced-apart fastening bolts 13 are provided on the outside of the bottom end of the top shell 1, and the top shell 1 and the bottom shell 2 are fixed together by the fastening bolts 13. The top shell 1 and the bottom shell 2 are installed and fixed by the fastening bolts 13, thereby ensuring the stability of the connection between the top shell 1 and the bottom shell 2. At the same time, it is also convenient for the staff to disassemble the top shell 1 and the bottom shell 2, and facilitate the inspection and maintenance of structures such as gear parts.

[0029] The main gear 3 and the slave gear 10 are supported and limited by the shaft body 4, and the slave gear 10 is supported and limited by the nesting cooperation of the support ring 6 and the positioning ring 7, and the fixing ring 9 supports and limits the main gear 3 by means of the nesting cooperation with the limiting ring 8. In this way, the gear parts can be supported from multiple angles to ensure the transmission stability of the gear parts. The multi-faceted support can effectively disperse the load and stress, thereby reducing the probability of breakage of the gear parts and the shaft body 4, and ensuring the performance of the shaft body 4 and the gear parts.

[0030] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A shaft protection mechanism for an air conditioner damper actuator, characterized by: The invention comprises a top shell (1) and a bottom shell (2) arranged at the bottom of the top shell (1), a gear component of an air conditioner damper actuator is installed between the top shell (1) and the bottom shell (2), and a support assembly for supporting the gear component is provided between the top shell (1) and the bottom shell (2); The support assembly comprises a shaft (4) arranged between the top shell (1) and the bottom shell (2), the gear member is sleeved on the outside of the shaft (4), a mounting member (5) with a T-shaped cross section is installed at the bottom end of the shaft (4), and a support ring (6) sleeved on the outside of the shaft (4) is installed on the top of the mounting member (5), and a positioning ring (7) is sleeved on the outside of the top end of the support ring (6); A limiting ring (8) is provided on the top of the positioning ring (7), and a fixing ring (9) is provided inside the limiting ring (8), and the top of the fixing ring (9) is fixed to the top of the inner cavity of the top shell (1).

2. The shaft protection mechanism of an air conditioner damper actuator according to claim 1, characterized in that: The gear member comprises a main gear (3) and a slave gear (10) mounted on the bottom of the main gear (3), and both the main gear (3) and the slave gear (10) are sleeved on the outside of the shaft (4); The bottom end of the limiting ring (8) is fixed to the top of the main gear (3), and the top end of the positioning ring (7) is fixed to the bottom of the slave gear (10).

3. The shaft protection mechanism of an air conditioner damper actuator according to claim 1, characterized in that: The bottom of the bottom shell (2) is provided with a mounting hole (11) with a T-shaped cross section, and the mounting member (5) is arranged inside the mounting hole (11).

4. The shaft protection mechanism of an air conditioner damper actuator according to claim 3, characterized in that: The outer diameter of the support ring (6) is equal to the top diameter of the mounting hole (11).

5. The shaft protection mechanism of an air conditioner damper actuator according to claim 1, characterized in that: The bottom end of the mounting member (5) is provided with a plurality of fasteners (12), and the plurality of fasteners (12) are evenly spaced apart. The top ends of the fasteners (12) penetrate the mounting member (5) and extend into the interior of the bottom shell (2). The fasteners (12) are threadedly connected to the bottom shell (2).

6. The shaft protection mechanism of an air conditioner damper actuator according to claim 1, characterized in that: A plurality of spaced apart fastening bolts (13) are provided on the outside of the bottom end of the top shell (1), and the top shell (1) and the bottom shell (2) are fixed together by the fastening bolts (13).

Images