Intermittent dual-output gearbox

Abstract

The invention relates to an intermittent double-output gear box which comprises a box body, a motor, a driving gear, a first driven gear, a second driven gear, an intermittent transmission rotating disc, an output rotating disc and an output rotating shaft are arranged in the box body, and the driving gear is in meshing transmission with a first-stage gear of the first driven gear; a second-stage gear of the first driven gear is in meshing transmission with the second driven gear, an intermittent transmission block is arranged on the intermittent transmission rotary disc, and an intermittent transmission groove is formed in the position, corresponding to the intermittent transmission block, of the outer side wall of the output rotary disc. According to the intermittent dual-output gearbox, the output rotating disc and the output rotating shaft are driven to rotate through the single motor, the driving gear, the first driven gear, the second driven gear, the intermittent transmission rotating disc, the output rotating disc and the output rotating shaft, and therefore the intermittent dual-output gearbox achieves the dual-output function; and the output turntable and the output rotating shaft act intermittently, so that the requirement of a user on the intermittent action output of the double-output gear box is met.

Description

Technical Field

[0001] The present invention relates to the technical field of gear boxes, and in particular to an intermittent dual-output gear box. Background Art

[0002] At present, in order to meet the needs of two actuators working at the same time, corresponding power drive devices need to be configured. For example, in certain working environments, two drive devices are required to drive separately. The above-mentioned drive devices generally include motors and gearboxes, but the above-mentioned drive methods are costly, complex in structure, complicated to install, occupy a large space, and are not energy-efficient. For this reason, dual-output gearboxes with two output ends have also appeared on the market, such as a dual-output gearbox disclosed by Chinese Patent Announcement No. CN 217814877 U on November 15, 2022. However, due to the gear design of the internal structure of the above-mentioned dual-output gearbox, the rotational action of the two output ends of the above-mentioned dual-output gearbox is synchronized, which cannot meet the user's demand for the dual-output gearbox to output two intermittent actions. Therefore, it is necessary to provide an intermittent dual-output gearbox to solve the above-mentioned problem. Summary of the Invention

[0003] The object of the present invention is to provide an intermittent dual-output gearbox with a simple structure, low cost, simple installation, and two intermittent execution actions.

[0004] The object of the present invention is achieved like this:

[0005] An intermittent dual-output gearbox includes a box body, in which a motor, a driving gear, a first driven gear, a second driven gear, an intermittent transmission turntable, an output turntable and an output shaft are arranged. The driving gear, the first driven gear, the second driven gear and the output turntable are arranged in the box body. The motor drives the driving gear to rotate. The first driven gear is a double-layer gear. The driving gear is meshed with the first gear of the first driven gear for transmission. The second gear of the first driven gear is meshed with the second driven gear for transmission. The output shaft is arranged at the center of the first driven gear. The intermittent transmission turntable is fixedly connected to the second driven gear and is coaxially arranged. An intermittent transmission block is provided, and an intermittent transmission groove is provided on the outer wall of the output turntable corresponding to the position of the intermittent transmission block. When the motor drives the driving gear to rotate, the driving gear rotates and drives the first gear to rotate, the first gear drives the second gear and the output shaft to rotate, the second gear rotates and drives the second driven gear to rotate, and the second driven gear rotates and drives the intermittent transmission turntable to rotate. When the intermittent transmission block is rotated into the intermittent transmission groove, the intermittent transmission block drives the intermittent transmission groove to rotate, and the output turntable rotates. When the intermittent transmission block rotates out of the intermittent transmission groove, the intermittent transmission block does not drive the intermittent transmission groove to rotate, the output turntable stops rotating, and the intermittent transmission turntable continues to rotate. The intermittent dual-output gearbox of the present invention drives the output turntable and the output shaft to rotate by a single motor, a driving gear, a first driven gear, a second driven gear, an intermittent transmission turntable, an output turntable and an output shaft. The output turntable of the present invention rotates intermittently, while the output shaft rotates continuously. Therefore, the intermittent dual-output gearbox of the present invention realizes a dual output function, and the output turntable and the output shaft are intermittently in motion, thereby meeting the user's demand for intermittent motion output of the dual-output gearbox.

[0006] The present invention can also be further improved as follows.

[0007] A left stop pawl and a right stop pawl are provided on the outer side wall of the output turntable, and the left stop pawl and the right stop pawl are respectively located on both sides of the intermittent transmission groove. After the intermittent transmission block rotates out of the intermittent transmission groove, the left stop pawl or the right stop pawl abuts against the outer wall of the intermittent transmission turntable, and the output turntable stops rotating, thereby preventing the output turntable from excessive rotation and the intermittent transmission groove from being out of the driving range of the intermittent transmission block, resulting in the intermittent transmission block being unable to drive the intermittent transmission groove and the output turntable to rotate.

[0008] The left stop pawl and the right stop pawl are respectively provided with a first arc surface and a second arc surface. The curvature of the first arc surface and the curvature of the second arc surface are adapted to the side wall shape of the intermittent transmission turntable, so that the left stop pawl and the right stop pawl can better prevent the intermittent transmission turntable from excessive rotation.

[0009] The left stopping pawl and the right stopping pawl extend toward the side wall of the intermittent transmission turntable, thereby facilitating the left stopping pawl and the right stopping pawl to prevent the intermittent transmission turntable from excessive rotation.

[0010] The intermittent transmission block is arranged on the top surface of the intermittent transmission turntable, and a transmission ear is provided on one side of the output turntable. The intermittent transmission groove is arranged on the transmission ear, and the transmission ear extends to the top surface of the intermittent transmission turntable, thereby facilitating transmission between the intermittent transmission block and the intermittent transmission groove.

[0011] The output rotary disc is coaxially rotatable on the first driven gear.

[0012] The output rotary disc is sleeved on the outer side of the output rotary shaft.

[0013] The driving gear, the first driven gear and the second driven gear are arranged in the box body in a horizontally rotatable manner in sequence.

[0014] The diameter of the secondary gear is greater than that of the primary gear, and the diameter of the secondary gear is greater than that of the second driven gear.

[0015] The secondary gear is an incomplete gear.

[0016] The intermittent transmission turntable and the second driven gear are integrally formed. The structure of the present invention is reasonable, and the intermittent transmission turntable and the second driven gear are simple in structure, easy to process and convenient to install.

[0017] A transmission groove is provided on the output turntable, and a clearance opening is provided on the box body at a position corresponding to the output shaft and the transmission groove. One end of the output shaft extends out of the clearance opening, and the transmission groove is located in the clearance opening. The structural design of the present invention is reasonable, thereby facilitating the connection of the two actuators.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The intermittent dual-output gearbox of the present invention utilizes a single motor, a driving gear, a first driven gear, a second driven gear, an intermittent transmission disc, an output disc, and an output shaft to drive the rotation of the output disc and output shaft. The output disc rotates intermittently, while the output shaft rotates continuously. Therefore, the intermittent dual-output gearbox of the present invention achieves dual output functionality, and both output actions operate intermittently, thus meeting user requirements for intermittent output motion in intermittent dual-output gearboxes. Enterprises can design the intermittent motion of the output disc and output shaft based on product requirements.

[0020] 2. Compared with the existing method of using two drive devices to drive two actuators respectively, the single motor of the gearbox of the present invention can realize two execution actions, which is more energy-efficient.

[0021] 3. In addition, the motor of the present invention is integrated into the gear box, so the present invention has a small size and a compact structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an intermittent dual-output gearbox according to an embodiment of the present invention.

[0023] Figure 2 This is a structural schematic diagram from another angle of an intermittent dual-output gearbox according to an embodiment of the present invention.

[0024] Figure 3 1 is a top view of an intermittent dual-output gearbox according to an embodiment of the present invention.

[0025] Figure 4 yes Figure 3 Cross-sectional view at AA in the middle.

[0026] Figure 5 This is an exploded view of the intermittent dual-output gearbox according to the first embodiment of the present invention.

[0027] Figure 6 This is an exploded view from another angle of the intermittent dual-output gearbox according to the first embodiment of the present invention.

[0028] Figure 7 This is a schematic structural diagram of the intermittent dual-output gearbox according to the first embodiment of the present invention with the box cover omitted.

[0029] Figure 8 This is a structural schematic diagram of the intermittent dual-output gearbox of the first embodiment of the present invention from another angle after the box cover is omitted.

[0030] Figure 9 This is an output state change diagram of the intermittent dual-output gearbox according to the first embodiment of the present invention. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Example 1, as Figures 1 to 9As shown, an intermittent dual-output gearbox includes a box body 1, in which a motor 2, a driving gear 5, a first driven gear 4, a second driven gear 3, an intermittent transmission turntable 6, an output turntable 7 and an output shaft 43 are arranged. The driving gear 5, the first driven gear 4, the second driven gear 3 and the output turntable 7 are rotated in the box body 1, and the motor 2 drives the driving gear 5 to rotate. The first driven gear 4 is a double-layer gear. The driving gear 5 is meshed with the first gear 41 of the first driven gear 4 for transmission, and the second gear 42 of the first driven gear 4 is meshed with the second driven gear 3 for transmission. The output shaft 43 is arranged at the center of the first driven gear 4, the intermittent transmission turntable 6 is fixedly connected to the second driven gear 3 and is coaxially arranged, and an intermittent transmission turntable 6 is provided with an intermittent transmission turntable. Transmission block 61, the outer wall of the output turntable 7 is provided with an intermittent transmission groove 71 at the position corresponding to the intermittent transmission block 61. When the motor 2 drives the driving gear 5 to rotate, the driving gear 5 rotates to drive the first-level gear 41 to rotate, the first-level gear 41 drives the second-level gear 42 and the output shaft 43 to rotate, the second-level gear 42 rotates to drive the second driven gear 3 to rotate, and the second driven gear 3 rotates to drive the intermittent transmission turntable 6 to rotate. When the intermittent transmission block 61 is rotated into the intermittent transmission groove 71, the intermittent transmission block 61 drives the intermittent transmission groove 71 to rotate, and the output turntable 7 rotates. When the intermittent transmission block 61 rotates out of the intermittent transmission groove 71, the intermittent transmission block 61 does not drive the intermittent transmission groove 71 to rotate, the output turntable 7 stops rotating, and the intermittent transmission turntable 6 continues to rotate.

[0033] As a more specific technical solution of the present invention.

[0034] The outer side wall of the output turntable 7 is provided with a left stop pawl 73 and a right stop pawl 72, which are respectively located on both sides of the intermittent transmission groove 71. After the intermittent transmission block 61 rotates out of the intermittent transmission groove 71, the left stop pawl 73 or the right stop pawl 72 abuts against the outer wall of the intermittent transmission turntable 6, and the output turntable 7 stops rotating, thereby preventing the output turntable from excessive rotation and the intermittent transmission groove from being out of the driving range of the intermittent transmission block, resulting in the intermittent transmission block being unable to drive the intermittent transmission groove and the output turntable to rotate.

[0035] A first arc surface 76 and a second arc surface 77 are respectively provided on the left stop pawl 73 and the right stop pawl 72 . The curvature of the first arc surface 76 and the curvature of the second arc surface 77 are adapted to the shape of the side wall of the intermittent transmission turntable 6 .

[0036] The left stop pawl 73 and the right stop pawl 72 extend toward the side wall of the intermittent transmission turntable 6 .

[0037] The intermittent transmission block 61 is arranged on the top surface of the intermittent transmission turntable 6 , and a transmission ear 75 is provided on one side of the output turntable 7 . The intermittent transmission groove 71 is arranged on the transmission ear 75 , and the transmission ear 75 extends to the top surface of the intermittent transmission turntable 6 .

[0038] The output rotary disc 7 is coaxially rotatably mounted on the first driven gear 4 .

[0039] The output rotary disc 7 is sleeved on the outer side of the output rotary shaft 43 .

[0040] The driving gear 5 , the first driven gear 4 , and the second driven gear 3 are arranged in the box body 1 so as to rotate horizontally in sequence.

[0041] The diameter of the secondary gear 42 is greater than that of the primary gear 41 , and the diameter of the secondary gear 42 is greater than that of the second driven gear.

[0042] The secondary gear 42 is a partial gear.

[0043] The intermittent transmission turntable 6 and the second driven gear 3 are integrally formed.

[0044] A transmission groove 74 is provided on the output turntable 7 , and a clearance opening 13 is provided on the box body 1 at a position corresponding to the output shaft 43 and the transmission groove 74 . One end of the output shaft 43 extends out of the clearance opening 13 , and the transmission groove 74 is located in the clearance opening 13 .

[0045] The box body 1 includes a box body 12 and a box cover 11 . The box cover 11 is arranged to cover the opening of the box body 12 .

[0046] When the motor 2 starts to drive the driving gear 5 to rotate clockwise, the driving gear 5 rotates and drives the first-stage gear 41 to rotate counterclockwise. The first-stage gear 41 drives the second-stage gear 42 and the output shaft 43 to rotate counterclockwise. The second-stage gear 42 rotates and drives the second driven gear 3 to rotate clockwise. The second driven gear 3 rotates and drives the intermittent transmission turntable 6 to rotate clockwise. When the intermittent transmission block 61 rotates clockwise into the intermittent transmission groove 71, the intermittent transmission block 61 drives the intermittent transmission groove 71 to rotate counterclockwise, and the output turntable 7 rotates counterclockwise. When the intermittent transmission block 61 rotates clockwise out of the intermittent transmission groove 71, the intermittent transmission block 61 does not drive the intermittent transmission groove 71 to rotate. The right stop pawl 72 abuts against the outer wall of the intermittent transmission turntable 6, and the output turntable 7 stops rotating. The output turntable 7 stops rotating, and the intermittent transmission turntable 6 continues to rotate clockwise. During this process, the output shaft 43 keeps rotating counterclockwise.

[0047] When the intermittent transmission turntable 6 rotates to the set angle, the motor 2 starts to reverse, and when the motor 2 starts to drive the driving gear 5 to rotate counterclockwise, the driving gear 5 rotates to drive the first-stage gear 41 to rotate clockwise, and the first-stage gear 41 drives the second-stage gear 42 and the output shaft 43 to rotate clockwise, and the second-stage gear 42 rotates to drive the second driven gear 3 to rotate counterclockwise, and the second driven gear 3 rotates to drive the intermittent transmission turntable 6 to rotate counterclockwise. When the intermittent transmission block 61 is screwed into the intermittent transmission groove 71 counterclockwise, the intermittent transmission block 61 drives the intermittent transmission groove 71 to rotate clockwise, and the output turntable 7 rotates clockwise. When the intermittent transmission block 61 rotates out of the intermittent transmission groove 71 counterclockwise, the intermittent transmission block 61 does not drive the intermittent transmission groove 71 to rotate, and the left stop pawl 73 is against the outer wall of the intermittent transmission turntable 6, and the output turntable 7 stops rotating. The intermittent transmission turntable 6 continues to rotate counterclockwise, and the output shaft 43 keeps rotating clockwise. Compared with the existing method of using two driving devices to drive two actuators respectively, the single motor of the gearbox of the present invention can realize two execution actions, which is more energy-efficient.

[0048] The output shaft and the output turntable of the dual-output gearbox of the present invention have intermittent motion, which can meet the user's requirements for intermittent motion of the two actuators. The dual-output gearbox of the present invention can be used on the fan blades at the air outlet of the air conditioner, such as the swing arm at the air outlet of the air conditioner and the multiple fan blades on the swing arm. The swing arm swings at the air outlet with a fixed angle range of 0-20°, and the fan blades swing at a fixed angle range of 0-180° on the swing arm. The transmission groove on the output turntable 7 is fixedly connected to one end of the swing arm. The output turntable 7 rotates to drive the swing arm to rotate out of the air outlet or rotate back to the air outlet, and the output shaft 43 drives the multiple fan blades to swing 0-180° on the swing arm. When the fan blade rotates to 72° on the swing arm, the output turntable 7 rotates to drive the swing arm to rotate out of the air outlet. When the fan blade rotates to 18° on the swing arm, the output turntable 7 rotates to drive the swing arm to rotate back to the air outlet. Under the drive of the above-mentioned output shaft and output turntable, the air-conditioning outlet swing arm and the multiple fan blades on the swing arm also swing intermittently. Under the swinging guidance of the fan blades, the air outlet of the air-conditioning outlet in all directions is more uniform, the temperature in various places in the room is balanced, and it is more energy-efficient.

Claims

1. An intermittent dual-output gearbox, comprising a box body (1), wherein a motor (2), a driving gear (5), a first driven gear (4), a second driven gear (3), an intermittent transmission turntable (6), an output turntable (7) and an output shaft (43) are arranged in the box body (1), the driving gear (5), the first driven gear (4), the second driven gear (3) and the output turntable (7) are rotatably arranged in the box body (1), the motor (2) drives the driving gear (5) to rotate, the first driven gear (4) is a double-layer gear, the driving gear (5) is meshed with the first gear (41) of the first driven gear (4), the second gear (42) of the first driven gear (4) is meshed with the second driven gear (3), the output shaft (43) is arranged at the center of the first driven gear (4), the intermittent transmission turntable (6) is fixedly connected to the second driven gear (3) and is coaxially arranged, and the intermittent transmission turntable (7) is arranged in the center of the first driven gear (4). An intermittent transmission block (61) is provided on the disk (6), and an intermittent transmission groove (71) is provided on the outer wall of the output rotary disk (7) at a position corresponding to the intermittent transmission block (61). When the motor (2) drives the driving gear (5) to rotate, the driving gear (5) rotates to drive the first-stage gear (41) to rotate, the first-stage gear (41) drives the second-stage gear (42) and the output rotating shaft (43) to rotate, the second-stage gear (42) rotates to drive the second driven gear (3) to rotate, and the second driven gear (3) rotates to drive the intermittent transmission rotary disk (6) to rotate. When the intermittent transmission block (61) is rotated into the intermittent transmission groove (71), the intermittent transmission block (61) drives the intermittent transmission groove (71) to rotate, and the output rotary disk (7) rotates. When the intermittent transmission block (61) rotates out of the intermittent transmission groove (71), the intermittent transmission block (61) does not drive the intermittent transmission groove (71) to rotate, and the output rotary disk (7) stops rotating.

2. The intermittent dual-output gearbox according to claim 1, characterized in that: A left stop pawl (73) and a right stop pawl (72) are provided on the outer side wall of the output turntable (7), and the left stop pawl (73) and the right stop pawl (72) are respectively located on both sides of the intermittent transmission groove (71). After the intermittent transmission block (61) rotates out of the intermittent transmission groove (71), the left stop pawl (73) or the right stop pawl (72) abuts against the outer wall of the intermittent transmission turntable (6), and the output turntable (7) stops rotating.

3. The intermittent dual-output gearbox according to claim 2, characterized in that: A first arc surface (76) and a second arc surface (77) are respectively provided on the left stop pawl (73) and the right stop pawl (72). The radians of the first arc surface (76) and the second arc surface (77) are adapted to the shape of the side wall of the intermittent transmission turntable (6).

4. The intermittent dual-output gearbox according to claim 2, characterized in that: The left stop pawl (73) and the right stop pawl (72) extend toward the side wall of the intermittent transmission rotary disc (6).

5. The intermittent dual-output gearbox according to claim 1, characterized in that: The intermittent transmission block (61) is arranged on the top surface of the intermittent transmission turntable (6), a transmission ear (75) is provided on one side of the output turntable (7), the intermittent transmission groove (71) is arranged on the transmission ear (75), and the transmission ear (75) extends to the top surface of the intermittent transmission turntable (6).

6. The intermittent dual-output gearbox according to claim 1, characterized in that: The output rotary disc (7) is coaxially rotatably arranged on the first driven gear (4), and the output rotary disc (7) is sleeved on the outside of the output rotating shaft (43).

7. The intermittent dual-output gearbox according to claim 1, characterized in that: The driving gear (5), the first driven gear (4), and the second driven gear (3) are arranged in the box body (1) in a horizontally rotatable manner in sequence.

8. The intermittent dual-output gearbox according to claim 1, characterized in that: The diameter of the secondary gear (42) is greater than the diameter of the primary gear (41), and the diameter of the secondary gear (42) is greater than the diameter of the second driven gear (3).

9. The intermittent dual-output gearbox according to claim 1, characterized in that: The intermittent transmission turntable (6) and the second driven gear (3) are integrally formed.

10. The intermittent dual-output gearbox according to claim 6, characterized in that: The output rotary disc (7) is provided with a transmission groove (74), and a clearance opening (13) is provided on the housing (1) at a position corresponding to the output rotating shaft (43) and the transmission groove (74), one end of the output rotating shaft (43) extends out of the clearance opening (13), and the transmission groove (74) is located in the clearance opening (13).

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