Motor tail clutch structure using bevel gear

Abstract

The utility model belongs to the technical field of clutches, and particularly relates to a motor tail clutch structure using bevel gears, which comprises a shell, a bevel gear assembly, a sliding connection assembly, a pre-tightening assembly, a microswitch and a chain wheel device, the bevel gear assembly comprises a first bevel gear and a second bevel gear which are rotatably connected to the shell, the first bevel gear is meshed with the second bevel gear, and the sliding connection assembly is arranged on the shell. The sliding connection assembly comprises a first spring, a connection assembly, a transmission part, a rotating shaft, a transmission pin and a shaft sleeve rotationally connected with the shell, the pre-tightening assembly can adjust the pre-tightening force of rotating attachment of the shaft sleeve and the shell, an arc-shaped slope is arranged in the shaft sleeve, and the upper end of the arc-shaped slope is not communicated with the upper side face of the shaft sleeve. The transmission pin is transversely installed on the rotating shaft, the side face of the transmission pin is attached to the arc-shaped slope, the microswitch is arranged on the lower portion of the transmission piece, and through the arranged arc-shaped slope, when the bevel gear assembly is driven by the chain wheel device, the transmission piece connected to the first bevel gear in a sliding mode ascends; therefore, when the microswitch is released from pressing, the connecting assembly ascends to be in butt joint with the motor driving end, and the manual mode is switched.

Description

Technical Field

[0001] The utility model belongs to the technical field of clutches, and particularly relates to a motor tail clutch structure using a bevel gear. Background Art

[0002] Industrial rolling doors are a common type of industrial door, widely used in industrial plants, warehouses, commercial buildings and other places. The motor and drive system in the industrial rolling door are responsible for providing power, so that the door can be opened and closed quickly and smoothly. The intelligent control system also allows the user to easily control the operation of the door through remote control or other means.

[0003] And now rolling shutters are generally provided with a manual-automatic switching function, such as a high-voltage, large-capacity explosion-proof lithium battery disclosed in the utility model patent with patent publication number CN2926467Y, which includes a box, a main shaft rod, a movable shaft rod, a connecting rod, a positioning pin, a gear, a clutch gear set and a transmission gear, the transmission gear is connected in series and fixed to the main shaft rod, the gear is connected in series to the main shaft rod and a flat gear is fixed to the gear through the positioning pin, the flat gear is meshed with the first row of gears in the clutch gear set, the second row of wheels in the clutch gear set is meshed with the transmission gear, the clutch gear set is pivoted to the connecting rod through the movable shaft rod, and a pull rope and a reset spring are provided on the rocker of the connecting rod, but this clutch device requires the motor to be powered off, and the rolling shutter door can only be driven up or down by a chain after the manual device is switched to the manual state, which is not convenient enough, so a motor tail clutch structure is needed that can cut off the motor power supply and convert to manual mode while pulling the chain. Utility Model Content

[0004] In view of the above problems, the utility model proposes a motor tail clutch structure using a bevel gear, which effectively solves the problem that the manual mode switching in the prior art is not convenient enough.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a motor tail clutch structure using a bevel gear, comprising a housing, a bevel gear assembly, a sliding connection assembly, a pre-tightening assembly, a micro switch and a sprocket device, wherein the bevel gear assembly comprises a bevel gear 1 and a bevel gear 2 which are rotatably connected to the housing, the bevel gear 1 is meshed with the bevel gear 2, the sliding connection assembly comprises a spring 1, a connection assembly, a transmission member, a rotating shaft, a transmission pin and a sleeve rotatably connected to the housing, the pre-tightening assembly is arranged at the lower part of the sleeve, the pre-tightening assembly can adjust the pre-tightening force of the sleeve and the housing to rotate and fit, the transmission member is slidably arranged in the bevel gear 1 up and down, The spring is arranged in bevel gear one and its two ends respectively abut bevel gear one and the transmission member, the connecting assembly is connected to the upper end of the transmission member and the upper end of the connecting assembly passes through bevel gear one and extends to the upper part of bevel gear one, the upper end of the rotating shaft is connected to the transmission member and the lower end is rotatably arranged in the shaft sleeve, an arc slope is arranged in the shaft sleeve, the upper end of the arc slope is not connected with the upper side surface of the shaft sleeve, the transmission pin is transversely installed on the rotating shaft and the side surface of the transmission pin is in contact with the arc slope, the output shaft of the sprocket device is connected to bevel gear two, the micro switch is arranged at the lower part of the transmission member, and the transmission member presses the micro switch when the transmission pin is located at the bottom of the arc slope.

[0006] Furthermore, a bearing 1 is arranged on the upper part of the shell, a bearing 2 is arranged on the side of the shell, and the bevel gear 1 and the bevel gear 2 are respectively connected to the inner rings of the bearing 1 and the bearing 2, so that the rotational friction is reduced by the arranged bearing 1 and the bearing 2.

[0007] Furthermore, the upper side and the lower side of the transmission member are provided with a rotating shaft hole, and the lower end of the rotating shaft and the lower end of the connecting component are respectively arranged in the rotating shaft holes. When the transmission member rotates, the rotating shaft and the connecting component can be driven at the same time. The set rotating shaft holes facilitate the rotating shaft, the connecting component and the transmission member to be arranged in the outer shell and form a transmission connection.

[0008] Furthermore, the preload assembly includes a rear cover, a second spring, an adjusting gasket, and an adjusting screw. A boss is provided at the bottom of the sleeve, and the upper side surface of the boss fits with the outside of the shell. The upper end of the second spring abuts against the lower side surface of the boss. An adjusting gasket is provided at the bottom of the second spring, and an adjusting screw threadedly connected to the rear cover is provided at the bottom of the adjusting gasket. The preload force is formed by abutting the sleeve through the provided spring so that the sleeve fits the shell. The preload force is adjusted so that the sleeve starts to rotate after the transmission part rises to a certain height.

[0009] Furthermore, the upper side and the lower side of the boss are both provided with friction pads sleeved on the shaft sleeve, and the provided friction pads prevent the boss from wearing the outer shell and the second spring.

[0010] Furthermore, a nut groove is provided on the inner lower side surface of the rear cover, an adjusting nut is provided in the nut groove, the adjusting screw is threadedly connected with the adjusting nut, and the adjusting screw is conveniently installed by the provided adjusting nut.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model provides an arc slope, so that when the sprocket device is manually pulled to drive the bevel gear assembly, the transmission member slidably connected to the bevel gear one rises, thereby releasing the micro switch and making the connecting assembly rise to connect the roller of the roller shutter machine to switch to the manual mode, and at the same time cuts off the electric power output of the roller shutter machine;

[0013] At the same time, the device has a simple structure and adopts bevel gear transmission, so the transmission force is more reasonable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the decomposed state structure of this utility;

[0015] Figure 2 This is a cross-sectional schematic diagram of the combined state.

[0016] In the figure: 1. housing; 2. bevel gear one; 3. bevel gear two; 4. spring one; 5. connecting assembly; 6. transmission member; 7. rotating shaft; 8. transmission pin; 9. bushing; 91. boss; 92. friction gasket; 10. preload assembly; 101. rear cover; 102. spring two; 103. adjusting gasket; 104. adjusting screw; 105. adjusting nut; 11. sprocket device; 12. micro switch; 13. bearing one; 14. bearing two. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-Figure 2As shown, a motor tail clutch structure using a bevel gear comprises a housing 1, a bevel gear assembly, a sliding connection assembly, a pre-tightening assembly 10, a micro switch 12 and a sprocket device 11, wherein the bevel gear assembly comprises a bevel gear 2 and a bevel gear 3 rotatably connected to the housing 1, the bevel gear 2 is meshed with the bevel gear 3, the sliding connection assembly comprises a spring 4, a connection assembly 5, a transmission member 6, a rotating shaft 7, a transmission pin 8 and a sleeve 9 rotatably connected to the lower part of the housing 1, the pre-tightening assembly 10 is arranged at the lower part of the sleeve 9, and the pre-tightening assembly 10 can adjust the pre-tightening force of the sleeve 9 and the housing 1 to rotate and fit, the bevel teeth of the bevel gear 2 are arranged downward, the bevel gear 2 3 is arranged perpendicular to the bevel gear 2, a circular hole is opened in the middle of the bevel gear 2, an integrally connected partition is arranged in the circular hole, the upper end of the arc slope is not connected to the upper side of the sleeve 9, the side of the transmission member 6 is integrally connected with a slider slidably connected to the slide groove, The transmission member 6 is inserted in the circular hole and is located in the circular hole below the partition. The spring 14 is arranged in the circular hole and its two ends respectively abut the partition and the transmission member 6 arranged in the bevel gear 2. The connecting component 5 is connected to the upper end of the transmission member 6 and the other end of the connecting component 5 passes through the partition in the bevel gear 2 and extends to the top of the bevel gear 2. The upper end of the rotating shaft 7 is connected to the transmission member 6 and the lower end is rotatably arranged in the shaft sleeve 9. An arc slope is arranged in the shaft sleeve 9. A mounting hole is opened on the side of the transmission pin 8. The transmission pin 8 is arranged in the mounting hole with an interference fit. The side of the transmission pin 8 is in contact with the arc slope. The upper end of the arc slope is provided with a groove perpendicular to the shaft sleeve. The output shaft of the sprocket device 11 passes horizontally through the bevel gear 23 and is fixedly connected by a flange. The micro switch 12 is fixed on the inner wall of the housing 1 and is located at the lower part of the transmission member 6. When the transmission pin 8 is located at the bottom of the arc slope, the transmission member 6 presses the micro switch 12.

[0019] In this embodiment, a bearing 13 is provided on the upper part of the shell 1, and a bearing 2 14 is provided on the side of the shell 1. The outer rings of the bearing 13 and the bearing 2 14 are fixedly connected to the shell 1 by screws, and the bevel gear 1 2 and the bevel gear 2 3 are key-connected to the inner rings of the bearing 13 and the bearing 2 14 respectively.

[0020] In this embodiment, the upper and lower sides of the transmission member 6 are provided with rotating shaft holes, and the rotating shaft holes can be square holes or other polygonal holes. The lower ends of the rotating shaft 7 and the lower ends of the connecting component 5 are both polygonal columns inserted into the rotating shaft holes, so that the rotating member 6 can drive the rotating shaft 7 and the connecting component 5 to rotate.

[0021] In this embodiment, the preload assembly 10 includes a rear cover 101, a second spring 102, an adjusting gasket 103, and an adjusting screw 104. The rear cover 101 is fixedly connected to the lower portion of the outer shell 1 by screws. The lower portion of the sleeve 9 is provided with a boss 91. The upper side surface of the boss 91 is fitted with the lower side surface of the outer shell 1. The upper end of the second spring 102 abuts against the lower side surface of the boss 91. The lower portion of the rear cover 101 is provided with an integral downwardly recessed gasket groove. The lower portion of the second spring 102 is provided with an adjusting gasket 103 located in the gasket groove. The lower portion of the adjusting gasket 103 is provided with an adjusting screw 104 threadedly connected to the rear cover 101.

[0022] In this embodiment, the upper side and the lower side of the boss 91 are both provided with friction pads 92 sleeved on the shaft sleeve 9 .

[0023] In this embodiment, a nut groove is formed on the inner lower side surface of the rear cover 101 , an adjusting nut 105 is disposed in the nut groove, and the adjusting screw 104 is threadedly connected to the adjusting nut 105 .

[0024] When the utility model is in use, the winding shaft of the rolling machine is located at the upper end of the connecting component 5, the upper part of the connecting component 5 is a coupling interface matched with the winding shaft, the micro switch 12 is connected to the motor switch driving the winding shaft of the rolling machine, and the chain of the sprocket device 11 is pulled to pull the sprocket so that the output end of the sprocket drives the bevel gear 2 3 to rotate, the bevel gear 2 3 drives the bevel gear 1 2 to rotate, the rotation of the bevel gear 1 2 drives the transmission member 6, the sliding connection component 5 and the rotating shaft 7 to rotate, at this time the transmission pin 8 rotates upward along the arc slope, the transmission pin 8 drives the transmission member 6 to slide and rise in the bevel gear 2, and at this time the transmission member 6 is no longer squeezed The micro switch 12, at this time, the motor driving the roller of the rolling machine is turned off, and the rising connecting component 5 is connected to the roller of the rolling machine. Under the influence of the pre-tightening force of the sleeve 9 applied by the spring 2 102, the transmission pin 8 rotates along the arc slope upward to a certain height and then drives the sleeve 9 to rotate. At this time, the connecting component 5 is driven to rotate by manually operating the sprocket device 11, and the winding of the rolling door can be manually controlled. When the sprocket device 11 is no longer pulled, the spring 1 4 pushes the transmission member 6 to move downward, thereby driving the connecting component 5 to disengage from the roller. At the same time, the lower end of the transmission member 6 presses the micro switch 12. At this time, the motor can normally drive the roller of the rolling door to rotate.

[0025] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A motor tail clutch structure using a bevel gear, characterized in that: The invention comprises a housing, a bevel gear assembly, a sliding connection assembly, a pre-tightening assembly, a micro switch and a sprocket device, wherein the bevel gear assembly comprises a bevel gear 1 and a bevel gear 2 which are rotatably connected to the housing, the bevel gear 1 is meshed with the bevel gear 2, the sliding connection assembly comprises a spring 1, a connection assembly, a transmission member, a rotating shaft, a transmission pin and a shaft sleeve which is rotatably connected to the housing, the pre-tightening assembly is arranged at the lower part of the shaft sleeve, the pre-tightening assembly can adjust the pre-tightening force of the shaft sleeve and the housing which are rotatably fitted, the transmission member is arranged in the bevel gear 1 for sliding movement up and down, the spring 1 is arranged in the bevel gear 1 and the two ends respectively abut against the bevel gear 1 Gear 1 and a transmission member, the connecting assembly is connected to the upper end of the transmission member and the upper end of the connecting assembly passes through bevel gear 1 and extends to the upper part of bevel gear 1, the upper end of the rotating shaft is connected to the transmission member and the lower end is rotatably arranged in the shaft sleeve, an arc slope is arranged in the shaft sleeve, the upper end of the arc slope is not connected with the upper side surface of the shaft sleeve, the transmission pin is transversely installed on the rotating shaft and the side surface of the transmission pin is in contact with the arc slope, the output shaft of the sprocket device is connected to bevel gear 2, the micro switch is arranged at the lower part of the transmission member, and the transmission member presses the micro switch when the transmission pin is located at the bottom of the arc slope.

2. The motor tail clutch structure using bevel gears according to claim 1, characterized in that: A first bearing is arranged on the upper part of the shell, a second bearing is arranged on the side of the shell, and the first bevel gear and the second bevel gear are connected to the inner rings of the first bearing and the second bearing respectively.

3. The motor tail clutch structure using bevel gears according to claim 1, characterized in that: The upper side and the lower side of the transmission member are provided with rotating shaft holes, the lower end of the rotating shaft and the lower end of the connecting component are respectively arranged in the rotating shaft holes, and the transmission member can drive the rotating shaft and the connecting component at the same time when rotating.

4. The motor tail clutch structure using bevel gears according to claim 1, characterized in that: The preload assembly includes a rear cover, a second spring, an adjusting gasket, and an adjusting screw. A boss is provided at the lower portion of the sleeve, the upper side of the boss is fitted with the exterior of the housing, the upper end of the second spring abuts against the lower side of the boss, an adjusting gasket is provided at the lower portion of the second spring, and an adjusting screw threadedly connected to the rear cover is provided at the lower portion of the adjusting gasket.

5. The motor tail clutch structure using bevel gears according to claim 4, characterized in that: The upper side surface and the lower side surface of the boss are both provided with friction pads sleeved on the shaft sleeve.

6. The motor tail clutch structure using bevel gears according to claim 4, characterized in that: A nut groove is provided on the inner lower side surface of the rear cover, an adjusting nut is arranged in the nut groove, and the adjusting screw is threadedly connected with the adjusting nut.

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