Universal joint, transmission shaft set and cigarette packaging machine set

Abstract

The utility model belongs to cigarette production technical field discloses a universal joint, transmission shaft group and cigarette packer set. After the universal joint wears, only need to detach the second half axle sleeve from the first half axle sleeve, detach the fourth half axle sleeve from the third half axle sleeve, can detach the universal joint from two transmission shafts and replace, the utility model provides the universal joint convenient to dismount, reduced the operation difficulty of universal joint replacement, be applicable to the connection between two transmission shafts in the narrow space. Transmission shaft group realizes the transmission connection between two external equipment through two transmission shafts and universal joint, and the transmission shaft group's universal joint is convenient to dismount, and the operation difficulty is low, is applicable to the transmission connection between two equipment in the narrow space. The utility model further provides a kind of cigarette packer set, can realize the quick replacement of universal joint and be convenient for phase adjustment, reduces the equipment maintenance difficulty and maintenance time of cigarette packer set.

Description

Technical Field

[0001] This utility model relates to the field of cigarette production technology, and in particular to a universal coupling, a transmission shaft assembly, and a cigarette packaging machine unit. Background Technology

[0002] The GDX1 cigarette packaging machine is a common type of cigarette packaging machine in the tobacco industry, mainly used for cigarette packaging production. The GDX1 cigarette packaging machine includes a CT packaging machine (carton packaging machine) and a CH packaging machine (hard pack packaging machine). The CT packaging machine is powered by the CH packaging machine, and the power transmission between the CH and CT packaging machines is achieved through a drive shaft and a universal coupling. The universal coupling was not originally designed with a lubrication system, which led to wear and tear after prolonged operation. This increased clearance in the universal coupling caused a phase error between the CT and CH packaging machines, resulting in asynchronous packaging times and quality defects such as damaged cigarette packs.

[0003] Therefore, universal couplings typically need to be replaced after wear. In existing units, the connection between the universal coupling and the drive shaft is a pin connection. Replacement requires knocking off the pins and then moving the universal coupling axially along the drive shaft to remove it. Installing a new universal coupling requires repositioning and drilling. Furthermore, due to the limited space within the unit, all these operations are performed manually, making the overall process difficult and time-consuming. Therefore, there is an urgent need to develop a universal coupling that is easy to install and disassemble to overcome the technical shortcomings of existing universal couplings. Utility Model Content

[0004] The purpose of this utility model is to provide a universal coupling, a drive shaft assembly, and a cigarette packaging machine unit to solve the technical defects of existing cigarette packaging machine units where replacing the universal coupling after wear is difficult and requires a lot of manpower and time.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] Universal couplings, including:

[0007] Universal joint assembly;

[0008] A first connector is connected to the universal joint assembly. The end of the first connector away from the universal joint assembly is a first bushing. The first bushing has a split structure, including a first half bushing and a second half bushing. The second half bushing is detachably connected to the first half bushing. A first keyway is provided on the inner wall surface of the first half bushing and / or the second half bushing.

[0009] The second connector is connected to the universal joint assembly. The second connector and the first connector are respectively connected to opposite sides of the universal joint assembly. The end of the second connector away from the universal joint assembly is a second bushing. The second bushing has a split structure, including a third half bushing and a fourth half bushing. The fourth half bushing is detachably connected to the third half bushing. The inner wall surface of the third half bushing and / or the fourth half bushing is provided with a second keyway.

[0010] Optionally, the universal coupling includes at least two universal joint assemblies, with adjacent universal joint assemblies connected by a third connector, and the first connector and the second connector respectively connected to the two ends of the at least two universal joint assemblies that are far apart from each other.

[0011] Optionally, the universal joint assembly is a cross shaft, and both the first connector and the second connector are hinged to the cross shaft.

[0012] A drive shaft assembly, comprising:

[0013] The aforementioned universal coupling;

[0014] A first drive shaft, a first connecting key is provided at a first end of the first drive shaft, a first bushing can be sleeved on the first end of the first drive shaft and the first connecting key can be embedded in the first keyway, and the second end of the first drive shaft can be connected to an external device.

[0015] The second drive shaft has a second connecting key at its first end, a second bushing that can be fitted onto the first end of the second drive shaft and the second connecting key that can be embedded in the second keyway, and the second end of the second drive shaft that can be connected to an external device.

[0016] Optionally, the second end of the first drive shaft is provided with a first drive gear, the second end of the second drive shaft is provided with a first connecting flange, the drive shaft assembly further includes a third drive shaft, the third drive shaft is coaxially arranged with the second drive shaft, the first end of the third drive shaft is provided with a second connecting flange, the second connecting flange is detachably connected to the first connecting flange, and the second end of the third drive shaft is provided with a second drive gear.

[0017] Optionally, the second connecting flange has a plurality of waist-shaped holes, which extend circumferentially along the second connecting flange and penetrate the second connecting flange axially. The first connecting flange has bolt holes, the number of which is the same as the number of waist-shaped holes.

[0018] Optionally, the outer periphery of the second connecting flange is provided with a plurality of scale grooves along the circumference of the second connecting flange, and the outer periphery of the first connecting flange is provided with scale marks.

[0019] Optionally, a cylindrical protrusion is provided at the center of the first connecting flange near the second connecting flange, and a cylindrical groove is provided at the center of the second connecting flange near the first connecting flange, wherein the cylindrical protrusion can be inserted into the cylindrical groove.

[0020] A cigarette packaging machine unit, wherein the cigarette packaging machine unit includes the aforementioned drive shaft assembly.

[0021] Optionally, the cigarette packaging unit further includes a lubrication device for supplying lubricating oil to the universal coupling.

[0022] The beneficial effects of this utility model are:

[0023] This invention provides a universal joint. When the universal joint wears out, simply loosen the fixing bolts, remove the second half-shaft sleeve from the first half-shaft sleeve, and remove the fourth half-shaft sleeve from the third half-shaft sleeve. This allows the universal joint to be removed from the two drive shafts and replaced with a new one. Compared to the existing technology where the universal joint is connected to the drive shaft using pins, the universal joint provided by this invention is easier to install and remove, reducing the difficulty of replacement. It is suitable for connecting two drive shafts in confined spaces. Furthermore, this invention also provides a drive shaft assembly that connects two external devices via two drive shafts and a universal joint. This drive shaft assembly features easy installation and removal of the universal joint, making it suitable for connecting two devices in confined spaces. Finally, this invention provides a cigarette packaging machine unit. Using the aforementioned drive shaft assembly enables quick replacement of the universal joint and facilitates phase adjustment between CH and CT packaging machines, reducing the difficulty and time required for equipment maintenance. Attached Figure Description

[0024] Figure 1 This is an exploded structural diagram of the universal coupling described in this embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the universal coupling described in this embodiment of the utility model;

[0026] Figure 3 This is another exploded structural diagram of the universal coupling described in this embodiment of the utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the transmission shaft assembly described in an embodiment of the present invention;

[0028] Figure 5 This is an exploded structural diagram of the drive shaft assembly described in an embodiment of this utility model;

[0029] Figure 6 yes Figure 5 An enlarged schematic diagram of part A of the structure.

[0030] In the picture:

[0031] 1. Universal joint assembly; 2. First connecting piece; 21. First bushing; 211. First half bushing; 212. Second half bushing; 213. First keyway; 3. Second connecting piece; 31. Second bushing; 311. Third half bushing; 312. Fourth half bushing; 313. Second keyway; 4. First drive shaft; 41. First connecting key; 42. First drive gear; 5. Second drive shaft; 51. Second connecting key; 52. First connecting flange; 521. Bolt hole; 522. Scale mark; 523. Cylindrical protrusion; 6. Third drive shaft; 61. Second connecting flange; 611. Waist-shaped hole; 612. Scale groove; 613. Cylindrical groove; 62. Second drive gear. Detailed Implementation

[0032] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In the description of this utility model, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0036] like Figures 1-3 As shown, this utility model provides a universal joint coupling, including a universal joint assembly 1, a first connecting member 2, and a second connecting member 3. The first connecting member 2 is movably connected to the universal joint assembly 1, and the end of the first connecting member 2 away from the universal joint assembly 1 is a first bushing 21. The first bushing 21 has a split structure, including a first half-shoulder bushing 211 and a second half-shoulder bushing 212, and the second half-shoulder bushing 212 is detachably connected to the first half-shoulder bushing 211 by bolts. A first keyway 213 is formed on the inner wall surface of one of the first half-shoulder bushings 211 and the second half-shoulder bushing 212, or both the inner wall surfaces of the first half-shoulder bushing 211 and the second half-shoulder bushing 212 are provided with the first keyway 213. The second connecting member 3 is movably connected to the universal joint assembly 1, and the second connecting member 3 and the first connecting member 2 are respectively connected to opposite sides of the universal joint assembly 1. The end of the second connecting member 3 away from the universal joint assembly 1 is a second bushing 31. The second bushing 31 has a split structure, including a third half-shoulder bushing 311 and a fourth half-shoulder bushing 312. The fourth half-shoulder bushing 312 is detachably connected to the third half-shoulder bushing 311 by bolts. A second keyway 313 is provided on the inner wall surface of either the third half-shoulder bushing 311 or the fourth half-shoulder bushing 312, or a second keyway 313 is provided on the inner wall surface of both the third half-shoulder bushing 311 and the fourth half-shoulder bushing 312.

[0037] Specifically, the universal coupling can connect two different drive shafts via a first bushing 21 and a second bushing 31, enabling power transmission while allowing for a certain angular offset or misalignment between the two drive shafts. When the first half-shoulder bushing 211 is connected to the second half-shoulder bushing 212, the first bushing 21 can hold the drive shaft tightly, and the first bushing 21 is connected to the drive shaft via a first keyway 213 and a key on the drive shaft, thus maintaining synchronous rotation between the first bushing 21 and the drive shaft. When the third half-shoulder bushing 311 is connected to the fourth half-shoulder bushing 312, the second bushing 31 can hold the drive shaft tightly, and the second bushing 31 is connected to the drive shaft via a second keyway 313 and a key on the drive shaft, thus maintaining synchronous rotation between the second bushing 31 and the drive shaft. When the universal joint wears out, simply loosen the fixing bolts, remove the second half-shaft sleeve 212 from the first half-shaft sleeve 211, and remove the fourth half-shaft sleeve 312 from the third half-shaft sleeve 311. This allows the universal joint to be removed from the two drive shafts and replaced with a new one. Compared to the existing technology where the universal joint is connected to the drive shaft using pins, the universal joint provided by this invention is easier to install and remove, reduces the difficulty of replacing the universal joint, and is suitable for connecting two drive shafts in confined spaces.

[0038] In one embodiment, the universal joint coupling includes at least two universal joint assemblies 1, with adjacent universal joint assemblies 1 connected by a third connector. A first connector 2 and a second connector 3 are respectively connected to the two ends of the at least two universal joint assemblies 1 that are far apart from each other after connection. The universal joint coupling including at least two universal joint assemblies 1 has improved angular compensation capability, enabling it to adapt to a larger total deflection angle between two drive shafts, achieving multi-directional spatial bending transmission, and stably transmitting power under complex axial deviations.

[0039] Optionally, the universal joint assembly 1 is a cross shaft, and both the first connecting member 2 and the second connecting member 3 are hinged to the cross shaft. Compared with the ball cage type universal joint, the cross shaft universal joint can withstand greater torque and impact loads, and is suitable for high torque environments such as heavy machinery or engineering vehicles.

[0040] On the other hand, such as Figures 4-6As shown, this utility model provides a drive shaft assembly, including the aforementioned universal coupling, a first drive shaft 4, and a second drive shaft 5. The first drive shaft 4 has a first connecting key 41 at its first end. A first bushing 21 can be fitted onto the first end of the first drive shaft 4, and the first connecting key 41 can be embedded in a first keyway 213, enabling synchronous rotation of the first drive shaft 4 and the first bushing 21. The second end of the first drive shaft 4 can be connected to an external device. The second drive shaft 5 has a second connecting key 51 at its first end. A second bushing 31 can be fitted onto the first end of the second drive shaft 5, and the second connecting key 51 can be embedded in a second keyway 313, enabling synchronous rotation of the second drive shaft 5 and the second bushing 31. The second end of the second drive shaft 5 can be connected to an external device. The drive shaft assembly achieves a transmission connection between two external devices through two drive shafts and a universal coupling. Furthermore, the universal coupling of this drive shaft assembly is easy to assemble and disassemble, has low operational difficulty, and is suitable for transmission connections between two devices in confined spaces.

[0041] Specifically, such as Figure 4 As shown, the second end of the first drive shaft 4 is provided with a first drive gear 42, and the second end of the second drive shaft 5 is provided with a first connecting flange 52. The drive shaft assembly also includes a third drive shaft 6, which is coaxially arranged with the second drive shaft 5. The first end of the third drive shaft 6 is provided with a second connecting flange 61, which is detachably connected to the first connecting flange 52. The second end of the third drive shaft 6 is provided with a second drive gear 62. The drive shaft assembly achieves transmission connection with external equipment through the first drive gear 42 and the second drive gear 62. The drive gears can be spur gears, helical gears, or bevel gears, making the transmission connection between the drive shaft assembly and external equipment flexible and diverse. When the phase between the first drive gear 42 and the second drive gear 62 is misaligned, the second connecting flange 61 can be detached from the first connecting flange 52, and the third drive shaft 6 can be rotated to adjust the phase between the first drive gear 42 and the second drive gear 62. Compared to the second transmission gear 62 being directly mounted on the second end of the second transmission shaft 5, where the phase misalignment between the first transmission gear 42 and the second transmission gear 62 necessitates removing the second transmission gear 62 from the gear on the subsequent transmission device and performing a skip operation on the second transmission gear 62, the aforementioned phase adjustment method is more convenient and time-saving.

[0042] Furthermore, such as Figure 5 and Figure 6As shown, the second connecting flange 61 has multiple oblong holes 611, which extend circumferentially and penetrate the second connecting flange 61 axially. The first connecting flange 52 has bolt holes 521, which are the same number and position as the oblong holes 611. The second connecting flange 61 and the first connecting flange 52 are connected by bolts. When the bolts are slightly loosened, the third drive shaft 6 can rotate relative to the second drive shaft 5 due to the oblong holes 611, thereby adjusting the phase between the first drive gear 42 and the second drive gear 62 without having to remove all the bolts from the second connecting flange 61 and the first connecting flange 52, further improving the efficiency of phase adjustment.

[0043] Optionally, such as Figure 6 As shown, the outer periphery of the second connecting flange 61 is provided with multiple graduated grooves 612 along its circumference, and the outer periphery of the first connecting flange 52 is provided with graduated marks 522. The angle between adjacent graduated grooves 612 can represent 5° or 10°. The graduated grooves 612 and graduated marks 522 can provide angle guidance for the operator, making it convenient for the operator to rotate to the appropriate angle to adjust the phase between the first transmission gear 42 and the second transmission gear 62.

[0044] Preferably, such as Figure 6 As shown, a cylindrical protrusion 523 is provided at the center of the first connecting flange 52 near the second connecting flange 61, and a cylindrical groove 613 is provided at the center of the second connecting flange 61 near the first connecting flange 52. The cylindrical protrusion 523 can be inserted into the cylindrical groove 613, thereby maintaining the coaxiality of the third driving shaft 6 of the second driving shaft 5.

[0045] On the other hand, this utility model also provides a cigarette packaging machine unit, including the aforementioned drive shaft assembly, which is used to realize power transmission between the CH packaging machine (hard box packaging machine) and the CT packaging machine (carton packaging machine). Since the drive shaft assembly of the cigarette packaging machine unit is located in a confined space, the application of this drive shaft assembly enables quick replacement of the universal coupling and facilitates phase adjustment between the CH packaging machine and the CT packaging machine, reducing the equipment maintenance difficulty and time of the cigarette packaging machine unit.

[0046] Furthermore, the cigarette packaging unit also includes a lubrication device for supplying lubricating oil to the universal coupling. By adding the lubrication device, the wear of the universal coupling is reduced, the service life of the universal coupling is extended, and the maintenance and operation burden of the staff is indirectly reduced.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A universal coupling, characterized in that, include: Universal joint assembly (1); A first connector (2) is connected to the universal joint assembly (1). The end of the first connector (2) away from the universal joint assembly (1) is a first bushing (21). The first bushing (21) has a split structure, including a first half bushing (211) and a second half bushing (212). The second half bushing (212) is detachably connected to the first half bushing (211). A first keyway (213) is provided on the inner wall surface of the first half bushing (211) and / or the second half bushing (212). The second connector (3) is connected to the universal joint assembly (1). The second connector (3) and the first connector (2) are respectively connected to opposite sides of the universal joint assembly (1). The end of the second connector (3) away from the universal joint assembly (1) is a second bushing (31). The second bushing (31) has a split structure, including a third half bushing (311) and a fourth half bushing (312). The fourth half bushing (312) is detachably connected to the third half bushing (311). The inner wall surface of the third half bushing (311) and / or the fourth half bushing (312) is provided with a second keyway (313).

2. The universal coupling according to claim 1, characterized in that, The universal coupling includes at least two universal joint assemblies (1), and two adjacent universal joint assemblies (1) are connected by a third connector. The first connector (2) and the second connector (3) are respectively connected to the two ends of the at least two universal joint assemblies (1) that are far apart from each other.

3. The universal coupling according to claim 1, characterized in that, The universal joint assembly (1) is a cross shaft, and the first connector (2) and the second connector (3) are both hinged to the cross shaft.

4. A drive shaft assembly, characterized in that, include: The universal coupling as described in any one of claims 1-3; A first drive shaft (4) is provided with a first connecting key (41) at its first end. A first bushing (21) can be fitted onto the first end of the first drive shaft (4) and the first connecting key (41) can be embedded in the first keyway (213). The second end of the first drive shaft (4) can be connected to an external device. The second drive shaft (5) has a second connecting key (51) at its first end. The second bushing (31) can be fitted onto the first end of the second drive shaft (5) and the second connecting key (51) can be embedded in the second keyway (313). The second end of the second drive shaft (5) can be connected to an external device.

5. The drive shaft assembly according to claim 4, characterized in that, The first drive shaft (4) is provided with a first drive gear (42) at its second end, and the second drive shaft (5) is provided with a first connecting flange (52) at its second end. The drive shaft group also includes a third drive shaft (6), which is coaxially arranged with the second drive shaft (5). The first end of the third drive shaft (6) is provided with a second connecting flange (61), which is detachably connected to the first connecting flange (52). The second end of the third drive shaft (6) is provided with a second drive gear (62).

6. The drive shaft assembly according to claim 5, characterized in that, The second connecting flange (61) has a plurality of waist-shaped holes (611) which extend circumferentially along the second connecting flange (61) and penetrate the second connecting flange (61) axially. The first connecting flange (52) has bolt holes (521) which are the same number as the waist-shaped holes (611).

7. The drive shaft assembly according to claim 5, characterized in that, The outer periphery of the second connecting flange (61) is provided with a plurality of scale grooves (612) along the circumference of the second connecting flange (61), and the outer periphery of the first connecting flange (52) is provided with scale marks (522).

8. The drive shaft assembly according to claim 5, characterized in that, The first connecting flange (52) has a cylindrical protrusion (523) at the center of the side near the second connecting flange (61), and the second connecting flange (61) has a cylindrical groove (613) at the center of the side near the first connecting flange (52). The cylindrical protrusion (523) can be inserted into the cylindrical groove (613).

9. A cigarette packaging machine unit, characterized in that, The cigarette packaging machine unit includes the drive shaft assembly as described in any one of claims 4-8.

10. The cigarette packaging machine unit according to claim 9, characterized in that, The cigarette packaging machine also includes a lubrication device for supplying lubricating oil to the universal coupling.

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