A cigarette pack steering gear box

Abstract

The present invention discloses a cigarette pack steering gearbox, comprising a box body, a gear mechanism, a transmission shaft mechanism and a gear shaft mechanism; the box body is provided with an oil inlet, an oil storage area and an oil outlet; the gear mechanism is installed in the box body, and the gear mechanism comprises an upper output gear, a lower output gear, an input gear and a steering gear that are meshed and driven in sequence; there are three transmission shaft mechanisms, and the transmission shaft mechanism comprises a transmission shaft, a transmission shaft flange, a transmission shaft oil seal, a first bearing, an inner sleeve, an outer sleeve and a second bearing; the gear shaft mechanism comprises an input shaft, an input shaft flange, an input shaft oil seal and a third bearing. The cigarette pack steering gearbox disclosed in the present invention can achieve spray lubrication through the lubricating oil entering through the oil inlet, and achieve oil bath lubrication through the contact between the input gear and the lubricating oil in the oil storage area, and the lubrication effect is good. Moreover, the overall structural layout of the cigarette pack steering gearbox is conducive to direct modification on the existing gearbox, avoiding major changes to the existing gearbox.

Description

Technical Field

[0001] The present invention relates to the field of cigarette production, and more particularly to a cigarette pack steering gear box. Background Art

[0002] The GDX2 packaging unit is one of the main equipment for high-speed cigarette packaging in the domestic cigarette industry. After the cigarette packs are folded and packaged, they are output from the No. 8 packaging wheel and enter the drying conveyor belt for drying and shaping. The power of the drying conveyor belt is transmitted from the main transmission system of the packaging machine through the coupling to the cigarette pack steering gearbox. The function of the cigarette pack steering gearbox of the GDX2 packaging machine is to make the cigarette packs packaged and formed on the GDX2 packaging machine be clamped by the upper and lower drying conveyor belts in the conveying channel, and then the cigarette packs are dried, shaped and conveyed. Then, the cigarette pack steering mechanism changes the qualified cigarette packs from horizontal conveying to vertical conveying to enter the next process.

[0003] The existing cigarette pack steering gearbox is an independent motion mechanism, which is lubricated by grease and needs to be regularly filled with grease. Due to the non-fluid properties of grease, it is difficult to completely lubricate the core parts of the parts, causing wear of the internal parts of the cigarette pack steering gearbox and increased transmission clearance, which in turn causes the drying conveyor belt and the steering conveyor belt of the conveying channel to run out of sync, ultimately leading to steering cigarette squeezing, increased machine auxiliary material consumption, and reduced equipment operating efficiency. Moreover, due to the limitations of the spatial structure, it is quite difficult to replace the internal worn parts of the cigarette pack steering gearbox, and the downtime is long, requiring about 4-5 hours, and the labor intensity is high when disassembling and replacing parts.

[0004] Therefore, how to provide a cigarette pack steering gearbox that can effectively improve the lubrication effect while avoiding major changes to the existing gearbox has become a technical problem that urgently needs to be solved in this field. Summary of the invention

[0005] An object of the present invention is to provide a new technical solution for a cigarette pack steering gearbox which can effectively improve the lubrication effect while avoiding major changes to the existing gearbox.

[0006] According to a first aspect of the present invention, a cigarette packet steering gear box is provided.

[0007] The cigarette packet steering gearbox comprises a box body, a gear mechanism, a transmission shaft mechanism and a gear shaft mechanism; wherein,

[0008] The top of the box body is provided with an oil inlet, and the bottom of the box body is provided with an oil storage area and an oil outlet;

[0009] The gear mechanism is installed in the housing, and comprises an upper output gear, a lower output gear, an input gear and a steering gear which are meshed and driven in sequence, the input gear is in contact with the lubricating oil in the oil storage area, and the distance between the oil outlet and the bottom wall of the housing is greater than the distance between the input gear and the bottom wall of the housing;

[0010] The transmission shaft mechanism has three, and the transmission shaft mechanism includes a transmission shaft, a transmission shaft flange, a transmission shaft oil seal, a first bearing, an inner sleeve, an outer sleeve, and a second bearing, the transmission shaft flange is installed on the outer wall of the housing and a transmission shaft flange through hole is provided on the transmission shaft flange, the transmission shaft oil seal, the first bearing and the second bearing are arranged in sequence in the transmission shaft flange through hole, the transmission shaft oil seal is configured to close the opening of the transmission shaft flange through hole away from the housing, the inner sleeve is fixedly connected to the transmission shaft, the outer sleeve is fixedly connected to the inner wall of the transmission shaft flange through hole, the outer wall of the first bearing is fixedly connected to the inner wall of the outer sleeve, the second bearing is fixedly connected to the inner wall of the transmission shaft flange through hole, the transmission shaft passes through the transmission shaft oil seal, the inner sleeve and the second bearing, and one end of different transmission shafts is fixedly connected to the upper output gear, the lower output gear and the steering gear respectively;

[0011] The gear shaft mechanism includes an input shaft, an input shaft flange, an input shaft oil seal and a third bearing. The input shaft flange is mounted on an inner wall of one side of the housing and an input shaft flange through hole is provided on the input shaft flange. The input shaft oil seal is configured to close an opening of the input shaft flange on a side away from the inner wall of the housing connected to the input shaft flange. The third bearing is fixedly connected to the input shaft flange through hole. The input shaft passes through the input shaft oil seal and the third bearing, and one end of the input shaft is fixedly connected to the input gear.

[0012] Optionally, the oil inlet corresponds to the center hole of the upper output gear.

[0013] Optionally, the oil outlet is located directly below the lower output gear.

[0014] Optionally, the gear mechanism further includes a first bridge gear and a second bridge gear, wherein the first bridge gear is located between the upper output gear and the lower output gear, and the second bridge gear is located between the lower output gear, the input gear and the steering gear.

[0015] Optionally, the gear mechanism has two first bridge gears, and the two first bridge gears are meshed for transmission.

[0016] Optionally, the distance between the oil outlet and the bottom wall of the housing is greater than the distance between the input gear and the bottom wall of the housing and is greater than or equal to 10 mm.

[0017] Optionally, the transmission shaft mechanism further includes an elastic retaining ring installed in the through hole of the transmission shaft flange and located at both ends of the second bearing in the axial direction.

[0018] Optionally, a transmission shaft annular boss is provided on the transmission shaft, and the inner sleeve cooperates with the transmission shaft annular boss.

[0019] Optionally, the gear shaft mechanism includes two of the third bearings.

[0020] Optionally, an input shaft annular boss is provided on the input shaft, and the input shaft annular boss abuts against the axial end face of the third bearing.

[0021] The cigarette pack steering gearbox disclosed in the present invention can realize spray lubrication through the lubricating oil entering the oil inlet, and realize oil bath lubrication through the contact between the input gear and the lubricating oil in the oil storage area, and the lubrication effect is good. Moreover, the overall structural layout of the cigarette pack steering gearbox is conducive to direct modification on the existing gearbox, avoiding major changes to the existing gearbox.

[0022] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0024] Figure 1 It is a schematic structural diagram of an embodiment of a cigarette pack steering gearbox disclosed in the present invention.

[0025] Figure 2 This is a schematic diagram of opening an embodiment of the cigarette pack steering gearbox disclosed in the present invention.

[0026] Figure 3 It is a schematic structural diagram of an embodiment of the transmission shaft mechanism of the cigarette pack steering gear box disclosed in the present invention.

[0027] Figure 4 It is an exploded view of an embodiment of the transmission shaft mechanism of the cigarette pack steering gear box disclosed in the present invention.

[0028] Figure 5 It is a schematic structural diagram of an embodiment of the gear shaft mechanism of the cigarette pack steering gear box disclosed in the present invention.

[0029] The following are marked in the figure:

[0030] Box body -1, oil inlet -11, oil outlet -12, gear mechanism -2, upper output gear -21, lower output gear -22, input gear -23, steering gear -24, first bridge gear -25, second bridge gear -26, transmission shaft mechanism -3, transmission shaft -31, transmission shaft annular boss -310, transmission shaft flange -32, transmission shaft flange through hole -320, transmission shaft oil seal -33, first bearing -34, inner bushing -35, outer bushing -36, second bearing -37, elastic retaining ring -38, gear shaft mechanism -4, input shaft -41, input shaft annular boss -410, input shaft flange -42, input shaft flange through hole -420, input shaft oil seal -43, third bearing -44. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless otherwise specifically stated.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0034] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0035] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0036] like Figures 1 to 5 As shown, the cigarette packet steering gear box disclosed in the present invention includes a box body 1, a gear mechanism 2, a transmission shaft mechanism 3 and a gear shaft mechanism 4.

[0037] An oil inlet 11 is provided at the top of the housing 1, and an oil storage area and an oil outlet 12 are provided at the bottom of the housing 1. Lubricating oil can enter the housing 1 from the oil inlet 11, so that the lubricating oil is sprayed onto the gears in the housing 1. The lubricating oil can flow back into the main transmission housing through the oil outlet 12. The setting of the oil storage area allows a certain height of lubricating oil to be stored at the bottom of the housing 1, and the gears in the housing 1 can contact the lubricating oil in the oil storage area during rotation, thereby achieving splash lubrication.

[0038] The structure of the box 1 can be flexibly set according to actual needs. For example, the box 1 can have a box-type structure, and the components in the box 1 can be inspected by opening the upper cover. For another example, the box 1 is an integrated structure, and a loading and unloading port and / or an inspection port can be set on it.

[0039] The gear mechanism 2 is installed in the housing 1. The gear mechanism 2 includes an upper output gear 21, a lower output gear 22, an input gear 23 and a steering gear 24 that are meshed and driven in sequence. The input gear 23 is in contact with the lubricating oil in the oil storage area. The distance between the oil outlet 12 and the bottom wall of the housing is greater than the distance between the input gear 23 and the bottom wall of the housing 1, so that the input gear 23 can continuously contact the lubricating oil in the oil storage area. In specific implementation, the upper output gear 21 can be connected to the upper output shaft, the lower output gear 22 can be connected to the lower output shaft, the input gear 23 can be connected to the input shaft, and the steering gear 24 can be connected to the steering shaft, so that each gear rotates driven by each transmission shaft.

[0040] There are three transmission shaft mechanisms 3, corresponding to the transmission shaft mechanism with an upper output shaft, the transmission shaft mechanism with a lower output shaft, and the transmission shaft mechanism with a steering shaft. The transmission shaft mechanism 3 includes a transmission shaft 31, a transmission shaft flange 32, a transmission shaft oil seal 33, a first bearing 34, an inner bushing 35, an outer bushing 36, and a second bearing 37. The first bearing 34 can be, for example, a needle bearing, and the second bearing 37 can be, for example, a rolling bearing. The transmission shaft flange 32 is mounted on the outer wall of the housing 1 and a transmission shaft flange through hole 320 is provided on the transmission shaft flange 32. The transmission shaft flange 32 can be mounted on the outer wall of the housing 1 by bolts and other mounting parts. The transmission shaft oil seal 33, the first bearing 34, and the second bearing 37 are arranged in sequence in the transmission shaft flange through hole 320. The transmission shaft oil seal 33 can be used to close the opening of the transmission shaft flange through hole 320 away from the housing 1 to play a sealing role. The inner bushing 35 is fixedly connected to the transmission shaft 31, the outer bushing 36 is fixedly connected to the inner wall of the transmission shaft flange through hole 320, and the outer wall of the first bearing 34 is fixedly connected to the inner wall of the outer bushing 36. The second bearing 37 is fixedly connected to the inner wall of the transmission shaft flange through hole 320. The above-mentioned fixed connection can be embedded in the transmission shaft flange 32 or embedded on the transmission shaft 31 by interference fit, or achieved by welding or the like. The transmission shaft 31 passes through the transmission shaft oil seal 33, the inner bushing 35 and the second bearing 37, and one end of different transmission shafts 31 is fixedly connected to the upper output gear 21, the lower output gear 22 and the steering gear 24 respectively. The fixed connection between the transmission shaft 31 and the gears can be achieved by embedding or welding or the like.

[0041] The transmission shaft 31 in the present disclosure includes three types: an upper output shaft, a lower output shaft and a steering shaft. Different transmission shafts 13 drive different gears to rotate.

[0042] The gear shaft mechanism 4 includes an input shaft 41, an input shaft flange 42, an input shaft oil seal 43 and a third bearing 44. The third bearing 44 can be, for example, a needle bearing. The input shaft flange 42 is mounted on one side inner wall of the housing 1 and is provided with an input shaft flange through hole 420. The input shaft flange 42 can be mounted in the housing 1 by bolt connection or welding. The input shaft oil seal 43 can be used to close the opening of the input shaft flange 42 on one side away from the inner wall of the housing 1 connected to the input shaft flange 42, so as to play a sealing role. The third bearing 44 is fixedly connected to the input shaft flange through hole 420. The above-mentioned fixed connection can be embedded in the input shaft flange 42 by interference fit, or by welding. The input shaft 41 passes through the input shaft oil seal 43 and the third bearing 44, and one end of the input shaft 41 is fixedly connected to the input gear 23. The fixed connection between the input shaft 41 and the gear can be achieved by embedding or welding.

[0043] The cigarette pack steering gearbox disclosed in the present invention can realize spray lubrication through the lubricating oil entering the oil inlet 11, and realize oil bath lubrication through the contact between the input gear 23 and the lubricating oil in the oil storage area, and the lubrication effect is good. Moreover, the overall structural layout of the cigarette pack steering gearbox is conducive to direct modification on the existing gearbox, avoiding making major changes to the existing gearbox.

[0044] In one embodiment of the cigarette pack steering gearbox disclosed herein, in order to improve the effect of spray lubrication, the oil inlet 11 corresponds to the center hole of the upper output gear 21 .

[0045] In one embodiment of the cigarette pack steering gearbox disclosed herein, in order to improve the efficiency of lubricating oil flowing out of the box body 1 , the oil outlet 12 is located directly below the lower output gear 22 .

[0046] In one embodiment of the cigarette packet steering gearbox disclosed herein, the gear mechanism further includes a first bridge gear 25 and a second bridge gear 26. The first bridge gear 25 is located between the upper output gear 21 and the lower output gear 22. The second bridge gear 26 is located between the lower output gear 22, the input gear 23 and the steering gear 24. The provision of the first bridge gear 25 and the second bridge gear 26 facilitates more convenient adjustment of the transmission ratio, making the operation of the gear mechanism smoother.

[0047] Furthermore, the gear mechanism 2 has two first bridge gears 25, and the two first bridge gears 25 are meshed for transmission. Thus, the upper output gear 21, the first first bridge gear 25, the second first bridge gear 25 and the lower output gear 22 are meshed in sequence.

[0048] In one embodiment of the cigarette pack steering gearbox disclosed herein, in order to ensure the lubrication effect while avoiding excessive oil storage in the box body 1, the distance between the oil outlet 12 and the bottom wall of the box body 1 is greater than or equal to 10 mm.

[0049] In one embodiment of the cigarette pack steering gearbox disclosed herein, the transmission shaft mechanism 3 further includes elastic retaining rings 38 installed in the transmission shaft flange through hole 320 and located at both ends of the axial direction of the second bearing 37. The provision of the elastic retaining rings 38 is conducive to better positioning of the second bearing 37.

[0050] In one embodiment of the cigarette packet steering gearbox disclosed herein, in order to more conveniently install the inner bushing 35, a transmission shaft annular boss 310 is provided on the transmission shaft 31. The inner bushing 35 matches with the transmission shaft annular boss 310.

[0051] In one embodiment of the cigarette packet steering gearbox disclosed herein, the gear shaft mechanism 4 includes two third bearings 44 to enable the input shaft 41 to rotate more smoothly.

[0052] In one embodiment of the cigarette packet steering gearbox disclosed herein, in order to more conveniently position the third bearing 44 , an input shaft annular boss 410 is provided on the input shaft 41 . The input shaft annular boss 410 abuts against the axial end face of the third bearing 44 .

[0053] Although some specific embodiments of the present invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A cigarette pack steering gearbox, characterized in that: It includes a box body, a gear mechanism, a transmission shaft mechanism and a gear shaft mechanism; wherein, The top of the box body is provided with an oil inlet, and the bottom of the box body is provided with an oil storage area and an oil outlet; The gear mechanism is installed in the housing, and comprises an upper output gear, a lower output gear, an input gear and a steering gear which are meshed and driven in sequence, the input gear is in contact with the lubricating oil in the oil storage area, and the distance between the oil outlet and the bottom wall of the housing is greater than the distance between the input gear and the bottom wall of the housing; The transmission shaft mechanism has three, and the transmission shaft mechanism includes a transmission shaft, a transmission shaft flange, a transmission shaft oil seal, a first bearing, an inner sleeve, an outer sleeve, and a second bearing, the transmission shaft flange is installed on the outer wall of the housing and a transmission shaft flange through hole is provided on the transmission shaft flange, the transmission shaft oil seal, the first bearing and the second bearing are arranged in sequence in the transmission shaft flange through hole, the transmission shaft oil seal is configured to close the opening of the transmission shaft flange through hole away from the housing, the inner sleeve is fixedly connected to the transmission shaft, the outer sleeve is fixedly connected to the inner wall of the transmission shaft flange through hole, the outer wall of the first bearing is fixedly connected to the inner wall of the outer sleeve, the second bearing is fixedly connected to the inner wall of the transmission shaft flange through hole, the transmission shaft passes through the transmission shaft oil seal, the inner sleeve and the second bearing, and one end of different transmission shafts is fixedly connected to the upper output gear, the lower output gear and the steering gear respectively; The gear shaft mechanism comprises an input shaft, an input shaft flange, an input shaft oil seal and a third bearing, wherein the input shaft flange is mounted on an inner wall of one side of the housing and an input shaft flange through hole is provided on the input shaft flange, the input shaft oil seal is configured to close an opening of the input shaft flange on a side away from the inner wall of the housing connected to the input shaft flange, the third bearing is fixedly connected to the input shaft flange through hole, the input shaft passes through the input shaft oil seal and the third bearing, and one end of the input shaft is fixedly connected to the input gear; The oil inlet corresponds to the center hole of the upper output gear; The oil outlet is located directly below the lower output gear.

2. The cigarette packet steering gearbox according to claim 1, characterized in that: The gear mechanism further includes a first bridge gear and a second bridge gear, wherein the first bridge gear is located between the upper output gear and the lower output gear, and the second bridge gear is located between the lower output gear, the input gear and the steering gear.

3. The cigarette packet steering gearbox according to claim 2, characterized in that: The gear mechanism has two first bridge gears, and the two first bridge gears are meshed for transmission.

4. The cigarette packet steering gearbox according to claim 1, characterized in that: The distance between the oil outlet and the bottom wall of the housing is greater than the distance between the input gear and the bottom wall of the housing by a value greater than or equal to 10 mm.

5. The cigarette packet steering gearbox according to claim 1, characterized in that: The transmission shaft mechanism also includes an elastic retaining ring installed in the transmission shaft flange through hole and located at both ends of the second bearing in the axial direction.

6. The cigarette packet steering gearbox according to claim 1, characterized in that: The transmission shaft is provided with a transmission shaft annular boss, and the inner sleeve is matched with the transmission shaft annular boss.

7. The cigarette packet steering gearbox according to claim 1, characterized in that: The gear shaft mechanism includes two third bearings.

8. The cigarette packet steering gearbox according to claim 1, characterized in that: An input shaft annular boss is provided on the input shaft, and the input shaft annular boss abuts against the axial end surface of the third bearing.

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