A precision compound reducer for a cap opening machine

Abstract

The application discloses a precision composite speed reducer for a cap opening machine, and relates to the technical field.The precision composite speed reducer comprises a box body, an upper shell and a control chamber cover.The box body is divided into three chambers, which are used for mounting a power module, a control module and a speed reduction module respectively.The power module comprises a motor stator, a motor rotor, a motor shaft and a power chamber end cover.The speed reduction module comprises a first-stage parallel gear transmission, a second-stage worm and gear transmission, a third-stage parallel gear transmission and a fourth-stage planetary gear transmission.The control module comprises a feedback gear train, a mounting plate, a ball screw, a position sensor, an adjusting screw, a micro switch mounting seat and a micro switch.The precision composite speed reducer does not need to additionally mount a motor and a control device, so that the occupied volume is reduced.The precision composite speed reducer has the characteristics of compact structure and small volume, realizes low rotating speed and high torque, improves the precision of the speed reducer, is more accurate in positioning, rotates stably and is more accurate in positioning of the position sensor through the rotation of the ball screw.

Description

Technical Field

[0001] This invention relates to the field of speed reducer technology, specifically a precision composite speed reducer for a cover opening machine. Background Technology

[0002] A door opener is a type of speed reducer that uses an output shaft to drive a heavy-duty door hinge to open the door.

[0003] Currently, in the market, when it comes to meeting the requirements of high speed ratio and high torque, a single planetary reducer or worm gear reducer is difficult to meet the working requirements. They need to be purchased separately and used in combination, and then the motor and control device need to be installed. This takes up a lot of space, is inconvenient to install, and requires a lot of wiring, which can easily lead to maintenance difficulties. For application scenarios with high space requirements, its practicality is low. Summary of the Invention

[0004] The purpose of this invention is to provide a precision composite speed reducer for a lid opener to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A precision composite reducer for a lid opener includes a housing, an upper housing, and a control chamber cover. The housing is divided into three chambers: a power chamber, a reduction chamber, and a control chamber. The control chamber cover is bolted to the control chamber. The power chamber, the reduction chamber, and the control chamber are respectively used to install a power module, a reduction module, and a control module. The power module includes a motor body, a motor shaft, and a power chamber end cover. The reduction module includes a single-stage parallel gear drive, a two-stage worm gear drive, a three-stage parallel gear drive, and a four-stage planetary gear drive. The control module includes a feedback gear train connected to the reduction module, a mounting plate, a ball screw, a position sensor, an adjusting screw, a microswitch mounting base, and a microswitch. The mounting plate is fixed... Installed in the control room; the top of the mounting plate is provided with two lead screw supports, the ball screw is rotatably connected to the lead screw supports, one end of the ball screw is connected to the feedback gear system, and the ball screw is threadedly connected to the position sensor; the micro switch mounting base is located on both sides of the position sensor, the micro switch is fixed on the side of the micro switch mounting base that is close to each other, the two micro switch mounting bases are each threadedly connected to an adjusting screw, a limit rod is connected between the lead screw supports, the position sensor and the micro switch mounting base are slidably connected to the limit rod, a relay and a terminal mounting plate are provided on the rear side of the top of the mounting plate, and the position sensor is electrically connected to the terminal mounting plate.

[0007] As a further embodiment of the present invention: the motor body is located in the power chamber, both ends of the motor shaft extend out of the motor body, the power chamber end cover is fixedly connected to the housing by hexagonal head screws, one end of the motor shaft is rotatably connected to the housing by a bearing; an oil seal is provided between the bearing and the motor shaft, and the other end of the motor shaft is rotatably connected to the power chamber end cover by a bearing.

[0008] As a further embodiment of the present invention: the primary parallel gear transmission includes a primary input gear mounted on the motor shaft; a positioning shaft is fixedly installed inside the housing; a first output gear meshing with the primary input gear is rotatably connected to the positioning shaft via a rotating bearing; the secondary worm gear transmission includes a worm gear mounted at the other end of the first output gear; an input gear shaft is rotatably connected between the housing and the upper housing via a bearing; a worm gear meshing with the worm gear is fixedly mounted on the input gear shaft; the tertiary parallel gear transmission includes a tertiary parallel gear transmission fixedly mounted on the input gear shaft. The input gear is connected to the housing and the upper housing via a hollow output shaft rotatably via bearings. Both ends of the output shaft are equipped with first oil seals. A double gear is rotatably mounted on the output shaft via bearings. One end of the double gear is a second output gear, which meshes with the third-stage input gear. The fourth-stage planetary gear transmission includes a sun gear, which is the other end of the double gear. A planetary cage extends from the output shaft, and the planetary cage is connected to several planetary gears via internally fixed rollers. An internal gear ring, meshing with the planetary gears, is fixedly connected to the upper housing via bolts.

[0009] As a further embodiment of the present invention: the feedback gear system includes a feedback gear and a feedback gear shaft, the feedback gear is a helical gear, the feedback gear shaft meshes with the feedback gear, and the feedback gear is fixedly connected to the second output gear by bolts; both ends of the feedback gear shaft are rotatably connected to the housing by bearings; a second oil seal is provided at one end of the feedback gear shaft extending out of the housing, and an oil seal cap is provided on the housing at the other end; one end of the ball screw is connected to the feedback gear shaft by a coupling.

[0010] As a further embodiment of the present invention: the end face of the motor shaft near the end cover of the power chamber is provided with an internal hexagon, the end cover of the power chamber is provided with a manual adjustment hole, and a second plastic plug is provided.

[0011] As a further aspect of the present invention, the rotating bearing is a four-point contact ball bearing.

[0012] As a further embodiment of the present invention: a wire hole is provided between the power chamber and the control chamber on the housing; a wire hole is provided on the control chamber cavity, and a threaded plastic cap is threadedly connected to the wire hole; an adjustment hole is also provided on the control chamber, and a first plastic plug is provided on the adjustment hole.

[0013] As a further embodiment of the present invention: a sealing gasket is provided between the housing and the upper housing, and the sealing gasket is fixedly connected to the housing by a positioning pin and bolts.

[0014] As a further aspect of the present invention: the housing (1) is provided with an oil filling hole communicating with the outside, and an oil plug is provided. Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. By setting up a housing, power chamber, reduction chamber, and control chamber, the power module, control module, and reduction gearbox module are installed in the power chamber, control chamber, and reduction chamber respectively, thus forming an integrated drive module. There is no need to install an additional motor and control device on the reducer, thereby reducing the occupied volume; it has the characteristics of compact structure and small size.

[0016] 2. By setting up a first-stage parallel gear transmission, a second-stage worm gear transmission, a third-stage parallel gear transmission, a fourth-stage planetary gear transmission, a feedback gear system, and a ball screw, and using the fourth-stage planetary gear transmission as the output stage for reduction, low speed and high torque are achieved, improving the accuracy of the reducer, making the positioning more accurate, and the rotation smoother. The rotation of the ball screw makes the position sensor positioning more precise. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the left-side structure according to an embodiment of the present invention.

[0019] Figure 3 This is a cross-sectional structural diagram of embodiment AA of the present invention.

[0020] Figure 4 This is a schematic diagram of the internal structure of an embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the dispersed structure according to an embodiment of the present invention.

[0022] Figure 6 This is an enlarged structural diagram of point A in an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the control room in an embodiment of the present invention.

[0024] Figure reference numerals: 1. Housing; 2. Upper housing; 3. Power compartment end cover; 4. Control compartment cover; 5. Motor body; 6. Power compartment; 7. Motor shaft; 8. Reduction chamber; 9. First-stage input gear; 10. First output gear; 11. Rotary bearing; 12. Worm gear; 13. Worm wheel; 14. Input gear shaft; 15. Second output gear; 16. Sun gear; 17. Planetary gears; 18. Planetary cage; 19. Control compartment; 20. Internal gear ring; 21. First oil seal; 22. Feedback gear; 23. Feedback gear shaft; 24. Oil seal cap; 25. Second oil seal; 26. Output shaft; 27. First plastic plug; 28. Threaded plastic cap; 29. ​​Second plastic plug; 30. Socket head cap screw; 31. Positioning shaft; 32. Coupling; 33. Mounting plate; 34. Ball screw; 35. Position sensor; 36. Adjusting screw; 37. Microswitch mounting base; 38. Microswitch; 39. Wiring hole; 40. Sealing gasket; 41. Screw support; 42. Limit rod. Detailed Implementation

[0025] The following embodiments will describe the present invention in detail with reference to the accompanying drawings. In the drawings or description, similar or identical parts are referred to by the same reference numerals, and in practical applications, the shape, thickness, or height of each component may be enlarged or reduced. The embodiments listed in this invention are merely illustrative and not intended to limit the scope of the invention. Any obvious modifications or changes made to this invention do not depart from the spirit and scope of the invention.

[0026] Example

[0027] Please see Figures 1-7 In this embodiment of the invention, a precision composite reducer for a cover opening machine includes a housing 1, an upper housing 2, and a control chamber cover 4. The housing 1 is divided into three chambers: a power chamber 6, a reduction chamber 8, and a control chamber 19. The power chamber 6, the reduction chamber 8, and the control chamber 19 are respectively used to install a power module, a reduction module, and a control module. The power module includes a motor body 5, a motor shaft 7, and a power chamber end cover 3. The reduction module includes a first-stage parallel gear transmission, a second-stage worm gear transmission, a third-stage parallel gear transmission, and a fourth-stage planetary gear transmission. The control module includes a feedback gear system, a mounting plate 33, a ball screw 34, a position sensor 35, an adjusting screw 36, a micro switch mounting base 37, and a micro switch 38.

[0028] The motor body 5 is located inside the power chamber 6. Both ends of the motor shaft 7 extend out of the motor body 5. The power chamber end cover 3 is fixedly connected to the housing 1 by hexagon socket head cap screws 30. One end of the motor shaft 7 is rotatably connected to the housing 1 by a bearing. An oil seal is provided between the bearing and the motor shaft 7 to prevent grease from the reduction module from entering the motor body 5. The other end of the motor shaft 7 is rotatably connected to the power chamber end cover 3 by a bearing, and the end face is provided with an internal hexagon socket for easy manual rotation of the motor using an internal hexagon wrench. The power chamber end cover 3 is provided with a manual adjustment hole and a second plastic plug 29 to prevent dust from entering the power chamber 6 when not in use.

[0029] The primary parallel gear transmission includes a primary input gear 9 mounted on the motor shaft 7. A positioning shaft 31 is fixedly installed inside the housing 1. A first output gear 10, which meshes with the primary input gear 9, is rotatably connected to the positioning shaft 31 via a rotating bearing 11. The rotating bearing 11 is a four-point contact ball bearing, which can withstand both radial and bidirectional axial forces, occupies little space, and facilitates the installation and disassembly of the gear.

[0030] The secondary worm gear transmission includes a worm 12 disposed at the other end of the first output gear 10; an input gear shaft 14 is rotatably connected between the housing 1 and the upper housing 2 via a bearing, and a worm wheel 13 that meshes with the worm 12 is fixedly mounted on the input gear shaft 14.

[0031] The three-stage parallel gear transmission includes a three-stage input gear fixedly mounted on the input gear shaft 14. A hollow output shaft 26 is rotatably connected between the housing 1 and the upper housing 2 via bearings. Both ends of the output shaft 26 are provided with first oil seals 21 to increase sealing performance. A double gear is rotatably mounted on the output shaft 26 via bearings. One end of the double gear is a second output gear 15, which meshes with the three-stage input gear.

[0032] The four-stage planetary gear transmission includes a sun gear 16, which is the other end of a double gear. A planetary cage 18 extends from the output shaft 26. The planetary cage 18 is connected to several planetary gears 17 via internally fixed rollers. An internal gear ring 20, which meshes with the planetary gears 17, is bolted to the upper housing 2. The sun gear 16, planetary gears 17, planetary cage 18, and internal gear ring 20 together form a planetary reduction mechanism as the output stage reduction, further improving the accuracy of the reducer, making the positioning more accurate, and the rotation smoother.

[0033] A sealing gasket 40 is provided between the housing 1 and the upper housing 2 to prevent grease leakage. The sealing gasket 40 is fixedly connected to the housing 1 by a positioning pin and bolts. The positioning pin can ensure that the internal gear ring 20 of the upper housing 2 is coaxial with the planetary cage 18, and the positioning is accurate, so as to transmit torque.

[0034] The control room cover 4 is fixedly installed on the control room 19 by bolts; the feedback gear system includes a feedback gear 22 and a feedback gear shaft 23, the feedback gear 22 is a helical gear, the feedback gear shaft 23 meshes with the feedback gear 22, and the feedback gear 22 is fixedly connected to the second output gear 15 by bolts; both ends of the feedback gear shaft 23 are rotatably connected to the housing 1 by bearings; a second oil seal 25 is provided at one end of the feedback gear shaft 23 extending out of the housing 1 to prevent grease from entering the control room 19, and an oil seal cap 24 is provided on the housing 1 at the other end to increase sealing; the mounting plate 33 is fixedly installed inside the control room 19; two lead screw supports 41 are provided on the top of the mounting plate 33, and the ball screw 34 is rotatably connected to the lead screw supports 41. The ball screw 34 is threadedly connected to the position sensor 35, enabling more precise positioning. One end of the ball screw 34 is connected to the feedback gear shaft 23 via a coupling 32, which transmits motion and torque and eliminates directional deviations caused by machining and installation errors. Microswitch mounting bases 37 are located on both sides of the position sensor 35. Microswitches 38 are fixed to the adjacent sides of the microswitch mounting bases 37. Each of the two microswitch mounting bases 37 is threadedly connected to an adjusting screw 36, used to adjust the front-to-back position of the microswitch 38, thereby adjusting the feedback distance. Limit rods 42 are connected between the screw supports 41, and the position sensor 35 and the microswitch mounting bases 37 are slidably connected to the limit rods 42. A relay and terminal mounting plate are provided on the top rear side of the mounting plate 33, and the position sensor 35 is electrically connected to the terminal mounting plate.

[0035] The rotation of the second output gear 15 drives the feedback gear 22 to rotate, which in turn drives the feedback gear shaft 23 and the ball screw 34 to rotate, thereby moving the position sensor 35. When the position sensor 35 moves and contacts the micro switch 38, the power module stops running. The micro switches 38 on both sides control the angle of the door opening and closing. When the angle of the door opening and closing needs to be changed, the corresponding adjustment screw 36 is rotated to adjust the position of the corresponding micro switch mounting base 37.

[0036] A wire hole is provided between the power chamber 6 and the control chamber 19 on the housing 1 for passing the motor cable through and installing it onto the terminal mounting plate; a wire hole 39 is provided on the control chamber 19, and a threaded plastic cap 28 is threaded onto the wire hole 39 for easy disassembly and wire threading; an adjustment hole is also provided on the control chamber 19 for external adjustment of the adjustment screw 36 to avoid disassembling the protective cover; a first plastic plug 27 is provided on the adjustment hole to prevent dust from entering the cavity when not in use; an oil filling hole communicating with the outside is provided on the housing 1, and an oil plug is provided.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A precision composite reducer for a lid opener, characterized in that, The system includes a housing (1), an upper shell (2), and a control chamber cover (4). The housing (1) is divided into three chambers: a power chamber (6), a reduction chamber (8), and a control chamber (19). The control chamber cover (4) is fixedly installed on the control chamber (19) by bolts. The power chamber (6), the reduction chamber (8), and the control chamber (19) are used to install the power module, the reduction module, and the control module, respectively. The power module includes a motor body (5), a motor shaft (7), and a power chamber end cover (3). The reduction module includes a first-stage parallel gear transmission, a second-stage worm gear transmission, a third-stage parallel gear transmission, and a fourth-stage planetary gear transmission. The control module includes a feedback gear system connected to the reduction module, a mounting plate (33), a ball screw (34), a position sensor (35), an adjusting screw (36), a micro switch mounting base (37), and a micro switch (38). The mounting plate (33) is fixedly installed in the control chamber. (19) Inside; the top of the mounting plate (33) is provided with two screw supports (41), the ball screw (34) is rotatably connected to the screw support (41), one end of the ball screw (34) is connected to the feedback gear system, and the ball screw (34) is threadedly connected to the position sensor (35); the micro switch mounting base (37) is located on both sides of the position sensor (35), the micro switch (38) is fixed on the side of the micro switch mounting base (37) that is close to each other, the two micro switch mounting bases (37) are respectively threadedly connected to an adjusting screw (36), the screw supports (41) are connected to a limit rod, the position sensor (35) and the micro switch mounting base (37) are slidably connected to the limit rod, the top rear side of the mounting plate (33) is provided with a relay and a terminal mounting plate, and the position sensor (35) is electrically connected to the terminal mounting plate; The first-stage parallel gear transmission includes a first-stage input gear (9) mounted on the motor shaft (7), and a positioning shaft (31) is fixedly installed inside the housing (1). A first output gear (10) meshing with the first-stage input gear (9) is rotatably connected to the positioning shaft (31) via a rotating bearing (11). The second-stage worm gear transmission includes a worm (12) mounted on the other end of the first output gear (10). An input gear shaft (14) is rotatably connected between the housing (1) and the upper housing (2) via a bearing. A worm gear (13) meshing with the worm (12) is fixedly mounted on the input gear shaft (14). The third-stage parallel gear transmission includes a third-stage input gear fixedly mounted on the input gear shaft (14). A hollow output shaft (26) is rotatably connected between the body (1) and the upper housing (2) via bearings. Both ends of the output shaft (26) are provided with first oil seals (21). A double gear is rotatably provided on the output shaft (26) via bearings. One end of the double gear is a second output gear (15). The second output gear (15) meshes with the third-stage input gear. The fourth-stage planetary gear transmission includes a sun gear (16). The sun gear (16) is the other end of the double gear. A planetary cage (18) extends from the shaft of the output shaft (26). The planetary cage (18) is connected to several planetary gears (17) via internally fixed rollers. An internal gear ring (20) that meshes with the planetary gears (17) is fixedly connected to the upper housing (2) via bolts.

2. The precision composite reducer for a lid-opening machine according to claim 1, characterized in that, The motor body (5) is located inside the power chamber (6). Both ends of the motor shaft (7) extend out of the motor body (5). The power chamber end cover (3) is fixedly connected to the housing (1) by hexagonal head screws (30). One end of the motor shaft (7) is rotatably connected to the housing (1) through a bearing. An oil seal is provided between the bearing and the motor shaft (7). The other end of the motor shaft (7) is rotatably connected to the power chamber end cover (3) through a bearing.

3. The precision composite reducer for a lid-opening machine according to claim 2, characterized in that, The feedback gear system includes a feedback gear (22) and a feedback gear shaft (23). The feedback gear (22) is a helical gear. The feedback gear shaft (23) meshes with the feedback gear (22). The feedback gear (22) is fixedly connected to the second output gear (15) by bolts. Both ends of the feedback gear shaft (23) are rotatably connected to the housing (1) by bearings. A second oil seal (25) is provided at one end of the feedback gear shaft (23) extending out of the housing (1), and an oil seal cap (24) is provided on the housing (1) at the other end. One end of the ball screw (34) is connected to the feedback gear shaft (23) by a coupling (32).

4. The precision composite reducer for a lid-opening machine according to claim 2, characterized in that, The motor shaft (7) has an internal hexagon on the end face near the power chamber end cover (3). The power chamber end cover (3) has a manual adjustment hole and a second plastic plug (29).

5. The precision composite reducer for a lid-opening machine according to claim 2, characterized in that, The rotating bearing (11) is a four-point contact ball bearing.

6. The precision composite reducer for a lid-opening machine according to claim 3, characterized in that, A wire hole is provided between the power chamber (6) and the control chamber (19) on the housing (1); a wire hole (39) is provided on the cavity of the control chamber (19), and a threaded plastic cap (28) is threaded onto the wire hole (39); an adjustment hole is also provided on the control chamber (19), and a first plastic plug (27) is provided on the adjustment hole.

7. The precision composite reducer for a lid-opening machine according to any one of claims 1-6, characterized in that, A sealing gasket (40) is provided between the housing (1) and the upper housing (2), and the sealing gasket (40) is fixedly connected to the housing (1) by a positioning pin and bolts.

8. The precision composite reducer for a lid-opening machine according to claim 7, characterized in that, The housing (1) is provided with an oil injection hole that communicates with the outside and is equipped with an oil plug.

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