Quick-release coaxial transmission mechanism, coaxial transmission mechanism and packaging equipment

Abstract

The utility model relates to the technical field of automatic equipment, and discloses a quick-release coaxial driving mechanism, a coaxial transmission mechanism and packaging equipment, and the coaxial driving mechanism comprises a driving mechanism, a plurality of driven assemblies and a plurality of limiting assemblies. The driving mechanism is used for providing driving torque and comprises a driving device, a driving support and a transmission shaft. The driving device is arranged on the driving support, the output end is coaxially connected with the transmission shaft, and the section of the transmission shaft is polygonal. The driven assemblies are arranged on the driving support, the input ends of the driven assemblies are provided with connecting holes allowing the transmission shaft to penetrate through, and the driven assemblies are synchronously driven by driving torque provided by the driven assemblies. The multiple limiting assemblies are arranged on the two sides of each driven assembly respectively, the relative positions of the transmission shafts and the driven assemblies can be adjusted in a limited adjusting space, the limiting assemblies are adjustably connected with the corresponding driven assemblies, and the transmission shafts are rotationally connected with the limiting assemblies. The quick-release coaxial driving mechanism is convenient to disassemble, assemble and maintain and long in service life.

Description

Technical Field

[0001] The utility model relates to the technical field of automation equipment, in particular to a quick-release coaxial transmission mechanism, a coaxial transmission mechanism and packaging equipment. Background Art

[0002] In mechanical equipment, there is often a need for multiple mechanisms to be driven synchronously. A coaxial transmission mechanism that uses the same rotating shaft to transmit torque to multiple mechanisms is one implementation method to achieve the above requirements. In existing coaxial transmission mechanisms, the driven mechanism often needs to be connected to multiple coaxial rotating shafts through a coupling, which makes disassembly and assembly difficult. When the number of mechanisms is large, a single disassembly and assembly requires multiple people to perform at the same time, and it often takes three or four hours to complete the installation and calibration. In addition, couplings are used to connect the driven mechanisms one by one, and the motor torque is transmitted to the end in turn through multiple couplings. The force on the couplings will accumulate step by step. The closer the coupling is to the end, the greater the force is, and the easier it is to be damaged. For this reason, it is necessary to design a coaxial traditional mechanism that is easy to disassemble. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a quick-release coaxial transmission mechanism, which does not require multiple couplings and can use one transmission shaft to connect multiple driven components. The relative position of the transmission shaft and the driven structure can be adaptive to facilitate disassembly and installation.

[0004] To solve the above problems, the technical solution adopted by the utility model is as follows: a quick-release coaxial transmission mechanism, comprising: a driving mechanism for providing a driving torque, comprising a driving device, a driving bracket and a transmission shaft, the driving device is arranged on the driving bracket, the output end of the driving device is coaxially connected to the transmission shaft, and the cross-section of the transmission shaft is a polygon; a plurality of driven components, a plurality of the driven components are arranged on the driving bracket, a plurality of input ends of the driven components are provided with connecting holes for the transmission shaft to pass through, the shape of the connecting holes matches the shape of the cross-section of the transmission shaft, and the plurality of driven components are synchronously driven by the driving torque provided by the driving mechanism; a plurality of limit assemblies, a plurality of the limit assemblies are respectively arranged on both sides of each of the driven assemblies, the relative position between the transmission shaft and the driven assembly can be adjusted within a limited adjustment space, the limit assemblies are adjustably connected to the driven assembly, and the transmission shaft is rotatably connected to the limit assemblies.

[0005] Compared with the prior art, the beneficial effect of the utility model is that a transmission shaft is used to connect multiple driven components to the driving mechanism, thereby realizing the synchronous driving of multiple driven components in series. And because the limit assembly and the driven component are adjustable and have a certain adjustment space, after the transmission shaft is connected to the multiple driven components, the positional relationship between the transmission shaft and the driven component can be adaptively adjusted to ensure that no circumferential force is generated between the transmission shaft and the driven component and the limit assembly. With the multi-deformable transmission shaft, the coaxial transmission series connection of multiple driven components and the driving mechanism can be realized without a coupling, which is easy to install. Avoiding the series connection of multiple couplings also avoids the easy damage of the end coupling due to force accumulation, thereby extending the service life of the mechanism.

[0006] The above-mentioned quick-release coaxial transmission mechanism, the limit assembly includes a limit connecting block and a limit base, a bearing is fixedly embedded in the limit connecting block, the inner ring of the bearing is provided with a sleeve, the sleeve has a through hole matching the cross-section of the transmission shaft, the transmission shaft is connected to the bearing through the sleeve to achieve a rotational connection with the limit connecting block, the limit base is fixedly connected to the driving bracket, the limit base has a limit groove, the limit connecting block is arranged in the limit groove, the width of the limit groove is wider than the width of the limit connecting block, the limit connecting block and the driven component are connected by bolts, the bolt hole on the limit connecting block for connecting with the driven component is a waist-shaped hole, the waist-shaped hole is vertically arranged on the limit connecting block, and the width of the waist-shaped hole is wider than the diameter of the bolt.

[0007] The above-mentioned quick-release coaxial transmission mechanism, the driven component includes two side plates and an input connecting piece, the side plates are provided with a through hole for the transmission shaft to pass through, the diameter of the through hole is wider than the maximum diameter of the transmission shaft, the input connecting piece is arranged between the two side plates, the input connecting piece is connected to the transmission shaft as the input end of the driven component, and the connecting hole is arranged on the input connecting piece.

[0008] In the above-mentioned quick-release coaxial transmission mechanism, the cross section of the transmission shaft is a regular polygon.

[0009] In the above-mentioned quick-release coaxial transmission mechanism, the cross-section of the transmission shaft is a regular hexagon.

[0010] A coaxial transmission mechanism comprises the above-mentioned quick-release coaxial transmission mechanism, wherein the input connecting piece of the driven component of the quick-release coaxial transmission mechanism is a synchronous pulley, and the driven component further comprises a transmission synchronous wheel group, which is rotatably arranged between two side plates of the driven component, and a plurality of synchronous pulleys in the transmission synchronous wheel group are arranged along the upper edge of the side plate, and the transmission synchronous wheel group is transmission-connected to the input connecting piece through a conveyor belt, and the upper surface of the conveyor belt can contact the material being transmitted.

[0011] In the above-mentioned coaxial transmission mechanism, the driven component also includes two tensioning synchronous wheels, which are rotatably arranged between the two side plates, and the two tensioning synchronous wheels are arranged on both sides of the input connecting member, and the rotating shaft of the tensioning synchronous wheel can be adjusted in the vertical direction relative to the input connecting member.

[0012] In the above-mentioned coaxial transmission mechanism, threaded holes are provided at both ends of the rotating shaft of the tensioning synchronous wheel, and a vertical waist-shaped through hole is provided on the side plate for the two ends of the rotating shaft of the tensioning synchronous wheel to extend out, and a tensioning connecting block is provided at one end of the waist-shaped through hole, and the tensioning connecting block is arranged on the outer surface of the side plate, and the rotating shaft of the tensioning synchronous wheel can be connected to the tensioning connecting block by a threaded column or a bolt.

[0013] In the above-mentioned coaxial transmission mechanism, flanges for restraining the transmission belt are arranged on the circumferences of the synchronous pulleys at the left and right ends of the transmission synchronous wheel group and the tensioning synchronous wheel, and the flanges are erected at the axial ends of the circumferences of the corresponding synchronous pulleys.

[0014] A packaging device comprises the above-mentioned coaxial transmission mechanism.

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the coaxial transmission mechanism of the embodiment of the utility model;

[0017] Figure 2 A top view of the coaxial transmission mechanism of an embodiment of the utility model;

[0018] Figure 3 It is a three-dimensional structural schematic diagram of a driven component of an embodiment of the utility model;

[0019] Figure 4 This is a schematic diagram of the internal structure of a driven component according to an embodiment of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the tensioning synchronous wheel according to an embodiment of the utility model.

[0021] Description of Figure Numbers:

[0022] 100 driving mechanism, 110 driving device, 120 transmission shaft, 130 driving bracket, 200 driven component, 210 side plate, 211 tensioning connecting block, 212 waist-shaped through hole, 220 transmission synchronous wheel set, 221 conveyor belt, 230 tensioning synchronous wheel, 231 tensioning rotating shaft, 232 flange, 240 input connecting piece, 250 pillar, 300 limiting component, 310 limiting connecting block, 311 waist-shaped hole, 312 transmission bearing, 320 limiting base. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below. Figure 1 The embodiment of the utility model provides a quick-release coaxial transmission mechanism, including a driving mechanism 100, a plurality of driven components 200 and a plurality of limit components 300. The driving mechanism 100 is used to provide a driving torque, and includes a driving device 110, a driving bracket 130 and a transmission shaft 120. The driving device 110 is arranged on the driving bracket 130, and the output shaft of the driving device 110 is coaxially connected with the transmission shaft 120. The transmission shaft 120 is a polygonal shaft with a polygonal cross section. The plurality of driven components 200 are all arranged on the driving bracket 130. The input ends of the plurality of driven components 200 are provided with connecting holes for the transmission shaft 120 to pass through. The shape of the connecting holes matches the shape of the cross section of the transmission shaft 120. The transmission shaft 120 passes through the connecting holes of the plurality of driven components 200 to connect the input ends of the plurality of driven components 200 in series coaxially, so that the driving mechanism 100 can provide a driving torque to the plurality of driven components 200, and realize synchronous driving of the plurality of driven components 200. The limit assembly 300 is arranged on both sides of each driven assembly 200, the transmission shaft 120 is rotatably connected to the limit assembly 300, and the limit assembly 300 is adjustably connected to the driven assembly 200, so that the relative position between the transmission shaft 120 and the driven assembly 200 can be adjusted within a limited space.

[0024] The quick-release coaxial transmission mechanism adopts a polygonal transmission shaft 120, which is matched with a connecting hole matching the transmission shaft 120, and can directly drive the driven component without a coupling. At the same time, the limit component 300 is adjustable and connected to the driven component 200, and has a certain relative position adjustment space. During installation, the driven component 200 is directly arranged on the driving bracket 130 of the driving mechanism 100 according to the preset interval, and then the transmission shaft 120 passes through each driven component 200 and the limit component 300. The relative position between the limit component 300 and the driven component 200 can be adaptively changed. Finally, the relative position of the limit component 300 and the driven component 200 after adaptive adjustment is fixed, so that the transmission shaft 120 can be prevented from being subjected to circumferential torque, and each driven component 200 is connected to the transmission shaft 120 in a coaxial transmission. Compared with the traditional method of connecting multiple short shafts and couplings one by one, the installation is convenient and quick, and it is easy to disassemble and maintain. At the same time, it can also avoid multiple couplings being connected in series, and the end couplings are easily damaged due to the accumulated force, thereby extending the service life of the mechanism.

[0025] Reference Figures 1 to 3In this embodiment, the position limiting assembly 300 includes a position limiting connection block 310 and a position limiting base 320. A transmission bearing 312 is fixedly embedded on the position limiting connection block 310. Since the transmission shaft 120 is a polygonal shaft, the inner ring of the transmission bearing 312 needs to be connected to the transmission shaft 120 through a sleeve having a through hole matching the cross section of the transmission shaft 120, so as to realize the rotation connection between the transmission shaft 120 and the position limiting connection block 310. The position limiting connection block 310 is connected to the driven component 200 through bolts. A pair of waist-shaped holes 311 for passing the connecting bolts are provided on the position limiting connection block 310. The waist-shaped holes 311 are provided at the upper and lower ends of the position limiting connection block 310. The width of the waist-shaped holes 311 is slightly wider than the diameter of the connecting bolts, so that the position limiting connection block 310 can have a certain adjustment space in the upper, lower, left and right directions relative to the driven component 200. The limiting base 320 has a limiting groove, the limiting base 320 is fixedly arranged on the driving bracket 130, the limiting connection block 310 is arranged in the limiting groove, the limiting base 320 limits the approximate position of the driven component 200 and the limiting connection block 310, and the width of the limiting groove is slightly wider than the width of the limiting connection block 310. In this embodiment, the length of the waist-shaped hole 311 is about 2mm, and the width of the waist-shaped hole 311 is slightly wider than the diameter of the connecting bolt by about 0.5mm, so that the limiting connection block 310 can have an adjustment space of about 2mm up and down relative to the driven component 200, and at the same time have an adjustment space of about 0.5mm left and right. Correspondingly, the width of the limiting groove is also wider than the width of the limiting connection block 310 by about 0.5mm. During installation, the limiting base 320 is first fixed on the driving bracket 130, and the limiting connection block 310 is connected to the driven component 200 by bolts, but the bolts are not tightened. Insert the driven component 200 with the limit connection block 310 installed between the corresponding limit bases 320, and determine the approximate position of each limit connection block 310. Then pass the transmission shaft 120 through each driven component 200 and the limit connection block 310 in sequence, swing the position of the limit connection block 310, so that the transmission shaft 120 can smoothly pass through each limit connection block 310, and finally lock the connecting bolts of the limit connection block 310 and the driven component 200 to complete the coaxial transmission connection between the driven component 200 and the transmission shaft 120. It can be understood that the waist-shaped hole 311 connecting the driven component 200 and the limit connection block 310 can also be set on the driven component 200, or adopt matching slide grooves and T-blocks, or adopt wedge blocks and other methods to achieve adjustable connection between the limit connection block 310 and the driven component 200. The adjustment margin between the limit connection block 310 and the driven component 200 can be designed according to actual needs.

[0026] Reference Figures 1 to 3In this embodiment, the driven component 200 includes two side plates 210 and an input connector 240. The input connector 240 is disposed between the two side plates 210. The side plates 210 are provided with a through hole for the transmission shaft 120 to pass through. The diameter of the through hole is wider than the maximum diameter of the transmission shaft 120 to avoid affecting the adjustment of the relative position between the limit assembly 300 and the driven component 200. The limit connection block 310 is connected to the side plates 210 by bolts, and the input connector 240 is connected to the transmission shaft 120. The connection hole is provided on the input connector 240. The specific type of the input connector 240 needs to be determined according to actual needs, and can be a gear, a synchronous pulley, a cam or a swing arm, etc. The driving device 110 can be a motor or a rotary cylinder, etc.

[0027] It is understandable that, in order to facilitate installation, the transmission shaft 120 is preferably a regular polygonal shaft. In the present embodiment, the transmission shaft 120 is a regular hexagonal shaft.

[0028] Reference Figures 2 to 4 In some embodiments, the above-mentioned quick-release coaxial transmission mechanism can be used to construct a coaxial transmission mechanism that is easy to disassemble. The driven components 200 are arranged in parallel at equal intervals on the driving bracket 130. A transmission synchronous wheel set 220 is arranged between the side plates 210 of the driven components 200. The synchronous pulleys in the transmission synchronous wheel set 220 are rotatably arranged along the upper edge of the transmitted components. The edges of the two side plates 210 where the transmission synchronous wheel set 220 is not arranged are connected by pillars 250. Correspondingly, the input connecting member 240 is also a synchronous pulley. The transmission synchronous wheel set 220 is connected to the input connecting member 240 through a conveyor belt 221, and the torque output by the driving device 110 is transmitted to the conveyor belt 221, and the conveyor belt 221 is driven to rotate along the transmission synchronous wheel set 220 to realize the transmission of materials. The upper surface of the conveyor belt 221 is higher than the side plate 210 so as to contact with the material to be transported, thereby realizing the transportation of the material.

[0029] In some embodiments, in order to facilitate the adjustment of the tension of the conveyor belt 221, the driven component 200 further includes two tensioning synchronous wheels 230, which are rotatably disposed between the two side plates 210, and the two tensioning synchronous wheels 230 are disposed on both sides of the input connecting member 240, and the rotating shaft of the tensioning synchronous wheel 230 can be adjusted in the vertical direction relative to the input connecting member 240. Figure 3A waist-shaped through hole 212 is provided on the side plate 210 for the tensioning shaft 231 of the tensioning synchronous wheel 230 to pass through. A tensioning connecting block 211 is provided at one end of the waist-shaped through hole 212. Both ends of the tensioning shaft 231 have threaded holes. Both ends of the tensioning shaft 231 can be connected to the tensioning connecting block 211 by bolts or studs. The tensioning shaft 231 can be moved up and down along the waist-shaped through hole 212 by rotating the bolts to adjust the height difference between the tensioning synchronous wheel 230 and the input connecting piece 240, thereby tightening the conveyor belt 221 and adjusting the tension of the conveyor belt 221.

[0030] Reference Figure 4 In this embodiment, the sleeve used to connect the transmission shaft 120 with the transmission bearing 312 on the limiting connection block 310 is integrally formed with the input connection member 240. Figure 5 In order to prevent the conveyor belt 221 from detaching from the conveying synchronous wheel set 220 and the tensioning synchronous wheel 230 during movement, the synchronous pulleys located at both ends of the side plate 210 in the tensioning synchronous wheel 230 and the conveying synchronous wheel set 220 both have flanges 232 for restraining the conveyor belt 221, and the flanges 232 are arranged at both ends of the corresponding synchronous pulley circumference in the axial direction.

[0031] A packaging device provided by an embodiment of the utility model includes the above-mentioned coaxial transmission mechanism, which uses the coaxial transmission mechanism to transport packaging materials or products to be packaged. The coaxial transmission mechanism uses a coaxial connection to connect multiple driven conveyor belts 221, which is easy to disassemble and maintain and has a long service life.

[0032] It should be noted that in the description of the present invention, if there are any orientation descriptions, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are all based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A quick-release coaxial transmission mechanism, characterized in that: include: A driving mechanism (100) is used to provide a driving torque, comprising a driving device (110), a driving bracket (130) and a transmission shaft (120), wherein the driving device (110) is arranged on the driving bracket (130), an output end of the driving device (110) is coaxially connected to the transmission shaft (120), and a cross section of the transmission shaft (120) is a polygon; a plurality of driven components (200), wherein the plurality of driven components (200) are arranged on the driving bracket (130), the input ends of the plurality of driven components (200) are provided with connecting holes through which the transmission shaft (120) can pass, the shape of the connecting holes matches the shape of the cross section of the transmission shaft (120), and the plurality of driven components (200) are synchronously driven by the driving torque provided by the driving mechanism (100); A plurality of limit assemblies (300) are respectively arranged on both sides of each driven assembly (200), and the relative position between the transmission shaft (120) and the driven assembly (200) can be adjusted within a limited adjustment space; the limit assemblies (300) and the driven assembly (200) are adjustably connected; and the transmission shaft (120) and the limit assemblies (300) are rotatably connected.

2. The quick-release coaxial transmission mechanism according to claim 1, characterized in that: The limiting assembly (300) comprises a limiting connection block (310) and a limiting base (320), wherein a bearing is fixedly embedded in the limiting connection block (310), wherein the inner ring of the bearing is provided with a sleeve, wherein the sleeve has a through hole matching the cross section of the transmission shaft (120), wherein the transmission shaft (120) is connected to the bearing through the sleeve to achieve rotational connection with the limiting connection block (310), wherein the limiting base (320) is fixedly connected to the driving bracket (130), and wherein the limiting base (320) has a limiting The limiting connection block (310) is arranged in the limiting connection block (310), the width of the limiting connection block (310) is wider than the width of the limiting connection block (310), the limiting connection block (310) and the driven component (200) are connected by bolts, and the bolt hole on the limiting connection block (310) for connecting with the driven component (200) is a waist-shaped hole (311), and the waist-shaped hole (311) is vertically arranged on the limiting connection block (310), and the width of the waist-shaped hole (311) is wider than the diameter of the bolt.

3. The quick-release coaxial transmission mechanism according to claim 1, characterized in that: The driven component (200) comprises two side plates (210) and an input connecting piece (240); the side plates (210) are provided with a through hole through which the transmission shaft (120) can pass; the diameter of the through hole is wider than the maximum diameter of the transmission shaft (120); the input connecting piece (240) is arranged between the two side plates (210); the input connecting piece (240) is connected to the transmission shaft (120) as an input end of the driven component (200); and the connecting hole is arranged on the input connecting piece (240).

4. A quick-release coaxial transmission mechanism according to claim 1, characterized in that: The cross section of the transmission shaft (120) is a regular polygon.

5. A quick-release coaxial transmission mechanism according to claim 4, characterized in that: The cross section of the transmission shaft (120) is a regular hexagon.

6. A coaxial transmission mechanism, characterized in that: The invention comprises a quick-release coaxial transmission mechanism according to any one of claims 1 to 5, wherein the input connecting member (240) of the driven component (200) of the quick-release coaxial transmission mechanism is a synchronous pulley, and the driven component (200) further comprises a transmission synchronous wheel group (220), wherein the transmission synchronous wheel group (220) is rotatably arranged between two side plates (210) of the driven component (200), and a plurality of synchronous pulleys in the transmission synchronous wheel group (220) are arranged along the upper edge of the side plate (210), and the transmission synchronous wheel group (220) is transmission-connected to the input connecting member (240) via a conveyor belt (221), and the upper surface of the conveyor belt (221) can contact with the material to be transmitted.

7. The coaxial transmission mechanism according to claim 6, characterized in that: The driven component (200) further comprises two tensioning synchronous wheels (230), the two tensioning synchronous wheels (230) being rotatably arranged between the two side plates (210), the two tensioning synchronous wheels (230) being arranged on both sides of the input connecting member (240), and the rotating shaft of the tensioning synchronous wheel (230) being capable of adjusting the position in the vertical direction relative to the input connecting member (240).

8. The coaxial transmission mechanism according to claim 7, characterized in that: Threaded holes are provided at both ends of the rotating shaft of the tensioning synchronous wheel (230); a vertical waist-shaped through hole (212) is provided on the side plate (210) through which both ends of the rotating shaft of the tensioning synchronous wheel (230) can extend; a tensioning connection block (211) is provided at one end of the waist-shaped through hole (212); the tensioning connection block (211) is provided on the outer surface of the side plate (210); and the rotating shaft of the tensioning synchronous wheel (230) can be connected to the tensioning connection block (211) via a threaded column or a bolt.

9. The coaxial transmission mechanism according to claim 7, characterized in that: Flanges (232) for restraining the conveyor belt (221) are arranged on the circumference of the synchronous pulleys at the left and right ends of the conveying synchronous wheel group (220) and the tensioning synchronous wheel (230), and the flanges (232) are erected at the two axial ends of the circumference of the corresponding synchronous pulleys.

10. A packaging device, characterized in that: Comprising the coaxial transmission mechanism according to any one of claims 6 to 9.

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