Coaxial bidirectional rotation gear reducing mechanism

Abstract

The utility model relates to the technical field of speed reducing mechanisms, in particular to a coaxial bidirectional rotation gear speed reducing mechanism. The speed reduction box is used for being connected with a power output end of an external driving part and outputting power as rotation of an inner shaft and an outer shaft which are coaxial and relatively rotationally installed, and the speed reduction box comprises a transmission part and a box body for supporting and positioning the transmission part. The transmission part comprises a driving shaft and a driven shaft which is driven by the driving shaft and is opposite to the rotating direction of the driving shaft, the driving shaft drives the inner shaft to rotate, the driven shaft drives the outer shaft to rotate, and the technical problems that in the prior art, a speed reducing mechanism cannot achieve coaxial two-way rotation, so that cost is reduced, and people are not hurt due to sudden stop are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reduction mechanisms, in particular to a coaxial bidirectional rotating gear speed reduction mechanism. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

[0003] Cylindrical rollers or rollers are commonly used for visual inspection by rolling material. This equipment includes a speed reduction mechanism. Prior art often uses one axis for loading and another for rolling inspection, requiring two drive mechanisms to drive the rotation. Furthermore, if a defective product is detected, loading must be stopped, removed, and then re-loaded. Improper operation can easily injure the operator while removing the material. Utility Model Content

[0004] The purpose of the utility model is to provide a coaxial bidirectional rotating gear reduction mechanism, which is used to solve the technical problem that the reduction mechanism in the prior art cannot achieve coaxial bidirectional rotation to reduce costs and can stop suddenly without hurting people.

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

[0006] A coaxial bidirectional rotating gear reduction mechanism, comprising:

[0007] The reduction box is used to connect to the power output end of the external driving part and output the power as the rotation of the inner shaft and the outer shaft which are coaxially and relatively rotated.

[0008] Furthermore, the reduction box includes a transmission part and a box body that supports and positions the transmission part. The transmission part includes a driving shaft and a driven shaft driven by the driving shaft and rotating in the opposite direction to the driving shaft. The driving shaft drives the inner shaft to rotate, and the driven shaft drives the outer shaft to rotate.

[0009] Furthermore, a driving worm is relatively fixedly installed on the driving shaft, a driven worm is relatively fixedly installed on the driven shaft, the driving worm is engaged with the driving worm wheel, the driven worm is engaged with the driven worm wheel, the driving worm wheel is relatively fixedly installed with the inner shaft, and the driven worm wheel is relatively fixedly installed with the outer shaft.

[0010] Furthermore, the driving worm gear and the inner shaft are installed through a driving sleeve, and an elastic tightening mechanism is radially arranged between the driving sleeve and the inner shaft. The elastic tightening mechanism is used to achieve relative fixation between the driving sleeve and the inner shaft and when the inner shaft stops rotating due to external force, the driving sleeve and the inner shaft rotate relative to each other.

[0011] Furthermore, the elastic tightening mechanism includes an elastic member and a ball-end limit block, the elastic member is installed in a radially arranged hole of the active shaft sleeve, and the ball-end limit block is arranged at the end of the elastic member and tightened on the outer circumference of the inner shaft.

[0012] Furthermore, a driven shaft sleeve is installed on the outer shaft, and the driven shaft sleeve is rotatably installed with the box body, and the tail end of the inner shaft is rotatably installed with respect to the box body.

[0013] Furthermore, a driving gear is fixedly mounted on the end of the driving shaft, and a driven gear is fixedly mounted on the end of the driven shaft, and the driving gear and the driven gear are meshed and mounted.

[0014] Furthermore, the speed reduction mechanism also includes a stand fixed relative to the box body and installed on the outside thereof, and the stand is installed on the bracket.

[0015] Furthermore, an arc-shaped sliding hole is provided on the stand, and an adjustment screw is installed on the bracket. The adjustment screw passes through the arc-shaped sliding hole and is used to adjust the position of the stand relative to the bracket along the arc-shaped sliding hole.

[0016] Furthermore, the driving part adopts a motor, and the power output shaft of the motor is coaxially connected to the driving shaft.

[0017] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0018] (1) The utility model sets a reduction box, and the driving shaft and the driven shaft of the transmission part are engaged and rotated synchronously, and the driving shaft and the driven shaft respectively drive the inner shaft and the outer shaft to rotate, so that one power unit drives and outputs two rotating shafts with different rotation directions. The inner shaft rotates to load the product, and the outer shaft flips to realize the product rotation appearance inspection, thereby realizing the two functions of loading and inspection, that is, the two-circle bidirectional rotation with coaxial bidirectional function, saving the power output device and thus reducing the cost;

[0019] (2) The utility model sets an elastic tightening mechanism, so that when the inner shaft stops rotating due to external force, the loading stops, but the outer shaft can continue to rotate for further appearance inspection. If it is indeed a defective product, it is convenient to remove the defective product manually, avoiding accidental injury to the operator due to the rotation of the inner shaft, and the defective products are removed in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top view of the structure of the utility model;

[0022] Figure 3 This is a left-side structural schematic diagram of the present utility model;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the reduction box;

[0024] Figure 5 This is a schematic diagram of the internal structure of the reduction box;

[0025] Figure 6 It is a schematic diagram of the transmission structure of the reduction box;

[0026] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure at AA in the middle.

[0027] In the figure, 100 is a bracket; 101 is an adjustment screw;

[0028] 200, motor;

[0029] 300, reduction box; 301, seat; 3011, arc-shaped slide hole; 302, housing; 303, driving shaft; 304, driven shaft; 305, driving worm; 306, driving bushing; 307, driven worm; 308, driven bushing; 309, driving gear; 310, driven gear; 311, driving worm wheel; 312, driven worm wheel;

[0030] 400, external axis;

[0031] 500, inner shaft. DETAILED DESCRIPTION

[0032] 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.

[0033] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting this patent;

[0034] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of this application. The singular forms "a", "an", "the" and "the" used in the embodiments of this application and the appended claims are not intended to limit the embodiments of this application.

[0035] "The" is also intended to include plural forms unless the context clearly indicates otherwise. It will also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0036] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with certain aspects of the present application, as detailed in the appended claims.

[0037] In the description of this application, it should be understood that the terms "first," "second," "third," etc. are used only to distinguish similar objects, and are not necessarily used to describe a specific order or precedence, nor should they be understood to indicate or imply relative importance. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0038] In addition, in the description of this application, unless otherwise specified, "plurality" refers to two or more. "and / or",

[0039] Describing the relationship between associated objects indicates that three relationships can exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. The character " / " generally indicates an "or" relationship between the associated objects. The following further illustrates the present invention with reference to the accompanying drawings and examples.

[0040] In order to solve the limitations of the existing technology, this embodiment provides a technical solution. The technical solution of the present utility model is further described below in conjunction with the drawings and embodiments.

[0041] The present invention addresses the problem of the related art in performing appearance inspection on cylindrical products, which is that two sets of power equipment are required for both loading and inspection, resulting in high equipment costs. Furthermore, when rejecting unqualified products, the rotating shaft must be individually controlled to stop rotating. Improper operation by the operator can easily result in mechanical injuries, resulting in poor safety. Therefore, the present invention proposes a coaxial, bidirectional rotating gear reduction mechanism. Coaxial, bidirectional means that the inner shaft 500 and the outer shaft 400 are coaxially arranged, but rotate in opposite directions to achieve both loading and inspection functions.

[0042] See attached Figure 1-3A coaxial bidirectional rotating gear reduction mechanism includes a reduction box 300 for connecting to the power output end of an external drive unit and outputting the power as the rotation of an inner shaft 500 and an outer shaft 400 that are coaxially mounted and relatively rotatable. Specifically, the reduction box 300 includes a transmission portion and a housing 302 that supports and positions the transmission portion. Specifically, the transmission portion includes a driving shaft 303 and a driven shaft 304 driven by the driving shaft 303 and rotating in the opposite direction to the driving shaft 303. The driving shaft 303 drives the inner shaft 500 to rotate, and the driven shaft 304 drives the outer shaft 400 to rotate. The reduction box 300 also includes a stand 301 fixed relative to the housing 302 and mounted on the outside thereof. The stand 301 is mounted on the bracket 100. Specifically, an arc-shaped sliding hole 3011 is provided on the stand 301, and an adjustment screw 101 is detachably threaded and mounted on the bracket 100. The adjustment screw 101 passes through the arc-shaped sliding hole 3011 and is used to adjust the position of the stand 301 relative to the bracket 100 along the arc-shaped sliding hole 3011. It is understood that when the stand 301 needs to be adjusted, the adjustment screw 101 is loosened, the stand 301 is rotated along the arc-shaped sliding hole 3011 to a suitable angle, and then the adjustment screw 101 is tightened to achieve the purpose of adjusting the angle of the stand 301. It is understood that the driving unit adopts a motor 200, and the power output shaft of the motor 200 is coaxially connected to the driving shaft 303. Here, the motor 200 drives the driving shaft 303 to rotate, and the driving shaft 303 drives the driven shaft 304 to rotate.

[0043] See attached Figure 4-7The driving worm 305 is relatively fixedly installed on the driving shaft 303, and the driven worm 307 is relatively fixedly installed on the driven shaft 304. The driving worm 305 is meshed with the driving worm wheel 311, and the driven worm 307 is meshed with the driven worm wheel 312. The driving worm wheel 311 is relatively fixedly installed with the inner shaft 500, and the driven worm wheel 312 is relatively fixedly installed with the outer shaft 400. It can be understood here that the driving shaft 303 drives the inner shaft 500 to rotate through the meshing of the driving worm 305 and the driving worm wheel 311, and the driven shaft 304 drives the outer shaft 400 to rotate through the driven worm 307 and the driven worm wheel 312, and the driving shaft 303 and the driven shaft 304 rotate in opposite directions, thereby achieving opposite rotation directions of the inner shaft 500 and the outer shaft 400. Specifically, the driving worm gear 311 and the inner shaft 500 are installed through the driving sleeve 306. It can be understood here that the driving sleeve 306 and the inner shaft 500 are fixedly installed, the driving worm gear 311 and the driving sleeve 306 are fixedly installed, and an elastic tightening mechanism is radially arranged between the driving sleeve 306 and the inner shaft 500. The elastic tightening mechanism is used to achieve relative fixation between the driving sleeve 306 and the inner shaft 500 and when the inner shaft 500 is stopped by external force, the driving sleeve 306 and the inner shaft 500 rotate relative to each other. Specifically, the elastic tightening mechanism includes an elastic member and a ball-end limit block. The elastic member is installed in a radially arranged hole of the active shaft sleeve 306. The ball-end limit block is arranged at the end of the elastic member and is tightened on the outer circumference of the inner shaft 500. It can be understood here that the elastic member is a spring, and the ball-end limit block can be a sphere or other mechanism with a spherical end. When the inner shaft 500 is not subjected to external force, the ball-end limit block is tightened on the outer circumference of the inner shaft 500 under the action of the spring, so that the inner shaft 500 and the active shaft sleeve 306 rotate synchronously. When the inner shaft 500 receives external force, the active shaft 303 does not stop, so the spring is compressed, and the ball-end limit block is in sliding contact with the outer circumference of the inner shaft 500, so that the inner shaft 500 stops rotating coaxially, and the outer shaft 400 still rotates, and the appearance of the product is re-inspected. The driven shaft sleeve 308 is installed on the outer shaft 400. The driven shaft sleeve 306 is rotatably installed with the housing 302. The tail end of the inner shaft 500 is rotatably installed with the housing 302. The rotational installation here can be achieved through bearings. The driving gear 309 is relatively fixedly installed at the end of the driving shaft 303, and the driven gear 310 is relatively fixedly installed at the end of the driven shaft 304. The driving gear 309 and the driven gear 310 are meshed and installed. The purpose of this setting is to achieve opposite rotation directions of the driving shaft 303 and the driven shaft 304 to adapt to the working conditions of opposite rotation directions required for feeding and testing. It should be noted here that the number of teeth of the driving gear 309 and the driven gear 310 are different, and the speed ratio of each component is motor: inner shaft: outer shaft = 1:1.5:3. By setting the speed ratio of each component, feeding and testing can be better achieved.

[0044] When the mechanism of the present invention is used to perform product feeding inspection, the motor 200 rotates, driving the active shaft 303 to rotate. The active shaft 303 meshes with the active gear 309 and the driven gear 310 to realize the driven shaft 304 to rotate in the opposite direction. The active shaft 303 meshes with the active worm gear 311 and the active worm 305 to realize the rotation of the inner shaft 500. The driven shaft 304 meshes with the driven worm gear 312 and the driven worm 307 to realize the rotation of the outer shaft 400, thereby realizing the coaxial but bidirectional rotation of the inner shaft 500 and the outer shaft 400. When unqualified products are found, manual force is applied to the inner shaft 500 to stop the inner shaft 500. At this time, the outer shaft 400 is still rotating, and the suspected unqualified products are rotated for re-inspection. If they are indeed unqualified products, they can be manually removed, thereby avoiding the accidental injury caused by the simultaneous rotation of the inner shaft 500 and the outer shaft 400, which not only reduces costs but also improves inspection efficiency.

[0045] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0046] 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 and improvements 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 coaxial bidirectional rotating gear reduction mechanism, characterized in that: include: A reduction box (300) is used to be connected to the power output end of the external drive unit and output the power as the rotation of the inner shaft (500) and the outer shaft (400) which are coaxially mounted and relatively rotatable; The reduction box (300) comprises a transmission part and a housing (302) for supporting and positioning the transmission part. The transmission part comprises a driving shaft (303) and a driven shaft (304) driven by the driving shaft (303) and rotating in a direction opposite to that of the driving shaft (303). The driving shaft (303) drives the inner shaft (500) to rotate, and the driven shaft (304) drives the outer shaft (400) to rotate.

2. A coaxial bidirectional rotation gear reduction mechanism according to claim 1, characterized in that: A driving worm (305) is relatively fixedly mounted on the driving shaft (303), a driven worm (307) is relatively fixedly mounted on the driven shaft (304), the driving worm (305) meshes with a driving worm wheel (311), the driven worm (307) meshes with a driven worm wheel (312), the driving worm wheel (311) is relatively fixedly mounted on the inner shaft (500), and the driven worm wheel (312) is relatively fixedly mounted on the outer shaft (400).

3. A coaxial bidirectional rotation gear reduction mechanism according to claim 2, characterized in that: The driving worm gear (311) and the inner shaft (500) are mounted via a driving shaft sleeve (306). An elastic tightening mechanism is radially arranged between the driving shaft sleeve (306) and the inner shaft (500). The elastic tightening mechanism is used to achieve relative fixation between the driving shaft sleeve (306) and the inner shaft (500), and when the inner shaft (500) stops rotating due to an external force, the driving shaft sleeve (306) and the inner shaft (500) rotate relative to each other.

4. The coaxial bidirectional rotation gear reduction mechanism according to claim 3, characterized in that: The elastic tightening mechanism comprises an elastic member and a ball-end limiting block, the elastic member being mounted in a radially arranged hole of the active shaft sleeve (306), and the ball-end limiting block being arranged at the end of the elastic member and tightening against the outer peripheral surface of the inner shaft (500).

5. The coaxial bidirectional rotation gear reduction mechanism according to claim 4, characterized in that: A driven shaft sleeve (308) is mounted on the outer shaft (400), and the driven shaft sleeve (308) is rotatably mounted on the housing (302). The tail end of the inner shaft (500) is rotatably mounted on the housing (302).

6. The coaxial bidirectional rotation gear reduction mechanism according to claim 5, characterized in that: The end of the driving shaft (303) is relatively fixedly mounted with a driving gear (309), and the end of the driven shaft (304) is relatively fixedly mounted with a driven gear (310), and the driving gear (309) and the driven gear (310) are meshed and mounted.

7. A coaxial bidirectional rotation gear reduction mechanism according to any one of claims 2 to 6, characterized in that: The speed reduction mechanism further comprises a stand (301) fixed relative to the box body (302) and mounted on the outside thereof, wherein the stand (301) is mounted on the bracket (100).

8. The coaxial bidirectional rotation gear reduction mechanism according to claim 7, characterized in that: An arc-shaped sliding hole (3011) is provided on the stand (301), and an adjustment screw (101) is installed on the bracket (100). The adjustment screw (101) passes through the arc-shaped sliding hole (3011) and is used for adjusting the position of the stand (301) relative to the bracket (100) along the arc-shaped sliding hole (3011).

9. The coaxial bidirectional rotation gear reduction mechanism according to claim 8, characterized in that: The driving unit adopts a motor (200), and the power output shaft of the motor (200) is coaxially connected to the driving shaft (303).

Images