Anti-falling gear applied to GDX2 packaging machine transmission box and transmission device

Abstract

The utility model relates to the technical field of gear transmission, and provides an anti-falling gear applied to a GDX2 packaging machine transmission box and a transmission device. The anti-falling gear is provided with the through hole for containing the bearing, the hole wall of the through hole is provided with the blocking edge and the groove, and the blocking edge and the groove are arranged at intervals in the thickness direction of the gear and used for restraining the bearing between the blocking edge and a fixing piece installed in the groove. The positions of the anti-falling gear and the bearing are fixed more firmly, and the effect of effectively preventing other parts in the transmission case from being damaged due to the fact that the gear slides off is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gear transmission, in particular to an anti-falling gear and a transmission device applied to a transmission box of a GDX2 packaging machine. Background Art

[0002] During the cigarette box packaging process, the gear in the No. 8 wheel outlet flip belt transmission box of the GDX2 packaging machine is fixed to the bearing by "pitting", that is, the gear and the bearing are fixed through a small interference fit.

[0003] Currently, after the GDX2 packaging machine has been running for a long time, it will shake or vibrate, causing the gears to fall off the bearings. The fallen gears will produce impact force on other gears in the transmission box, causing other gears to be damaged and resulting in huge equipment losses. Utility Model Content

[0004] The utility model provides an anti-falling gear and a transmission device applied to a transmission box of a GDX2 packaging machine, which are used to solve the problem in the prior art that the gear is easily fallen off from the bearing.

[0005] In the first aspect, the utility model provides an anti-falling gear used in the transmission box of a GDX2 packaging machine, wherein the gear is provided with a through hole for accommodating a bearing, and the hole wall of the through hole is provided with a rib and a groove, and the rib and the groove are spaced apart along the thickness direction of the gear, so as to constrain the bearing between the rib and the fixed part installed in the groove.

[0006] According to the utility model, an anti-dropping gear applied to a transmission box of a GDX2 packaging machine includes: a gear body, wherein the gear body is provided with a first boss;

[0007] The first boss is provided on a first side of the gear body, and the through hole passes through the first boss and the gear body;

[0008] The groove is located in a region of the through hole corresponding to the first boss.

[0009] According to the anti-falling gear applied to the transmission box of the GDX2 packaging machine provided by the utility model, the groove wall of the groove close to the second side of the gear body is arranged flush with the retaining edge.

[0010] According to the anti-falling gear applied to the transmission box of the GDX2 packaging machine provided by the utility model, the distance between the groove wall close to the first boss and the outer side of the first boss is 3-4 mm.

[0011] According to the anti-falling gear applied to the transmission box of the GDX2 packaging machine provided by the utility model, the end portion of the through hole located at the first boss is chamfered.

[0012] According to the anti-falling gear applied to the transmission box of the GDX2 packaging machine provided by the utility model, the gear body is further provided with a second boss;

[0013] The second boss is provided on the second side of the gear body, and the retaining edge is located in a region corresponding to the through hole and the second boss.

[0014] According to the anti-dropping gear applied to the transmission box of the GDX2 packaging machine provided by the utility model, a disassembly hole is provided on the retaining edge; the disassembly hole is used for allowing a disassembly tool to pass through so as to remove the bearing from the through hole.

[0015] According to the anti-falling gear applied to the transmission box of the GDX2 packaging machine provided by the utility model, the rib is arc-shaped;

[0016] There are multiple ribs, and the ribs are evenly arranged along the circumference of the through hole.

[0017] In a second aspect, the present invention further provides a transmission device comprising: a bearing, a fixing member, and an anti-dropping gear applied to a transmission box of a GDX2 packaging machine;

[0018] The bearing is installed in the through hole of the gear, the fixing piece is installed in the groove, and the rib and the fixing piece clamp the bearing in the through hole.

[0019] According to a transmission device provided by the utility model, the fixing member is a clip spring;

[0020] The clamping spring is clamped in the groove.

[0021] The utility model provides an anti-falling gear and transmission device for the transmission box of a GDX2 packaging machine. By arranging ribs and grooves on the wall of the through hole of the gear, and arranging the ribs and grooves at intervals, a fixing piece is placed in the groove when assembling the bearing and the gear, so that the ribs and the fixing piece constrain the position of the bearing from both sides of the bearing, thereby ensuring the relative fixation of the bearing and the gear over a long operating time and preventing the bearing from falling out of the through hole of the gear. Compared with a small interference fit in which the contact surface of the gear and the bearing is "pitted", the position of the anti-falling gear and the bearing of the utility model is fixed more firmly, thereby effectively preventing damage to other parts in the transmission box caused by gear slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the anti-falling gear provided by the utility model;

[0024] Figure 2 This is a schematic diagram of the main structure of the anti-falling gear provided by the utility model;

[0025] Figure 3 The utility model provides Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0026] Figure 4 This is a schematic diagram of the three-dimensional structure of the transmission device provided by the utility model;

[0027] Figure 5 This is a schematic diagram of the main structure of the transmission device provided by the utility model;

[0028] Figure 6 The utility model provides Figure 5 Schematic diagram of the cross-sectional structure of BB.

[0029] Reference numerals:

[0030] 1. Anti-drop gear;

[0031] 11. Through hole; 12. Rib; 13. Groove; 14. Gear body; 15. First boss; 16. Second boss;

[0032] 2. Bearings; 3. Fixing parts. DETAILED DESCRIPTION

[0033] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0034] The following combination Figures 1 to 6 , through specific embodiments and application scenarios, the anti-falling gear and transmission device provided by the embodiment of the present invention for use in the transmission box of the GDX2 packaging machine are described in detail.

[0035] In some embodiments, the first aspect Figure 1 and Figure 4 As shown, this embodiment provides an anti-falling gear 1 applied to the transmission box of a GDX2 packaging machine. The gear is provided with a through hole 11 for accommodating a bearing 2. The hole wall of the through hole 11 is provided with a rib 12 and a groove 13. The rib 12 and the groove 13 are spaced apart along the thickness direction of the gear to constrain the bearing 2 between the rib 12 and the fixed part 3 installed in the groove 13.

[0036] It is understandable that the rib 12 and the fixing member 3 respectively constrain the position of the bearing 2 from both sides of the bearing 2. When the gear and the bearing 2 cooperate with each other for transmission, especially when the gear and the bearing 2 shake or vibrate, since both ends of the bearing 2 are stopped, the bearing 2 cannot fall off from the through hole 11 of the gear.

[0037] The groove 13 is used to accommodate the fixing part 3, which provides axial stop for the bearing 2. Specifically, the groove 13 can be a full-circle annular groove arranged around the circumference of the through hole 11, or it can be several sections of grooves intermittently arranged on the hole wall of the through hole 11, or it can be just one section of groove.

[0038] At the same time, the rib 12 can be set along the entire circumference of the hole wall of the through hole 11, or it can be intermittently set along several sections of the edge of the hole wall of the through hole 11, or it can be a section of the edge, and the side of the rib 12 close to the outside of the gear can be coplanar with the outside of the gear, or it can be set at a distance from the outside of the gear.

[0039] Furthermore, the gear of this embodiment can be directly provided with a rib 12 and a groove 13 on the wall of the original through hole 11, or an overhanging portion can be provided on both sides of the gear, and a rib 12 and a groove 13 can be provided on the overhanging portion. It is only necessary to ensure that the gap between the rib 12 and the groove 13 can accommodate the bearing 2.

[0040] The anti-falling gear 1 provided by the present invention is applied to the transmission box of the GDX2 packaging machine. By arranging a rib 12 and a groove 13 on the hole wall of the through hole 11 of the gear, and arranging the rib 12 and the groove 13 at intervals, the fixing part 3 is placed in the groove 13 when assembling the bearing 2 and the gear, so that the rib 12 and the fixing part 3 constrain the position of the bearing 2 from both sides of the bearing 2, so as to ensure the relative fixation of the bearing 2 and the gear during a long running time, and prevent the bearing 2 from falling off from the through hole 11 of the gear. Compared with the small interference fit of "pitting" the contact surface of the gear and the bearing 2, the anti-falling gear 1 and the bearing 2 of the present invention are fixed more firmly, thereby achieving the effect of effectively preventing damage to other parts in the transmission box caused by gear slipping.

[0041] In some embodiments, as Figure 2and Figure 3 As shown, the anti-dropping gear 1 of this embodiment includes: a gear body 14 , and the gear body 14 is provided with a first boss 15 .

[0042] The first boss 15 is provided on a first side of the gear body 14 , and the through hole 11 passes through the first boss 15 and the gear body 14 ;

[0043] The groove 13 is located in a region of the through hole 11 corresponding to the first boss 15 .

[0044] It is understandable that if the groove 13 is directly set on the gear body 14, since the thickness of the bearing 2 needs to be left between the groove 13 and the edge, the thickness of the original gear is too small and the thickness of the gear needs to be increased, which will increase the process of processing the gear teeth.

[0045] In this embodiment, a first boss 15 is configured on the first side of the gear body 14. Since the outer diameter of the first boss 15 is smaller than the outer edge of the gear teeth of the gear body 14, only the annular boss needs to be processed, and there is no need to additionally process the gear teeth due to the increase in thickness, which saves processing steps and avoids material waste.

[0046] In some embodiments, as Figure 3 As shown, in this embodiment, the groove wall of the groove 13 close to the second side of the gear body 14 is flush with the rib 12 .

[0047] It is understandable that in order to ensure that the rib 12 and the groove 13 have a better clamping effect on the gear, in this embodiment, the groove 13 is flush with the rib 12 near the groove wall on the second side of the gear body 14, so that the fixing member 3 installed in the groove 13 is arranged parallel to the rib 12, ensuring that after the bearing 2 is installed in place, when the bearing 2 is stopped by the rib 12 or the fixing member 3, it can ensure a coaxial setting with the through hole 11, so that the bearing 2 and the gear can move relative to each other under the coaxial condition, which is beneficial to the stability and reliability of the operation of the gear and the bearing 2.

[0048] In some embodiments, the distance between the groove wall of the groove 13 close to the first boss 15 and the outer side of the first boss 15 is 3-4 mm.

[0049] It is understandable that in order to ensure the strength of the hole wall of the first boss 15 after the groove 13 is set, it is necessary to leave a certain distance between the groove wall close to the first boss 15 and the outer side of the first boss 15. However, if the distance is too large, the thickness of the first boss 15 will be too large, which will waste raw materials. In this embodiment, the distance is set to 3-4mm, which ensures the installation strength while making the thickness of the first boss 15 smaller, saving installation space and saving materials.

[0050] In some embodiments, as Figure 1 and Figure 4As shown, the through hole 11 of this embodiment is chamfered at the end portion of the first boss 15 .

[0051] It is understandable that when the bearing 2 is installed, it is pushed into the through hole 11 of the gear from the outside of the first boss 15. Usually, the through hole 11 of the first boss 15 is set to the same size as the outer diameter of the bearing 2. During installation, a tool is used to knock the bearing 2 into the through hole 11. In this embodiment, a chamfer is set at the end of the through hole 11 located on the first boss 15. The gap formed by the chamfer is more conducive to the advancement of the bearing 2 into the gear. The inclined surface of the chamfer forms a guide channel for the outside of the bearing 2, guiding the outside of the bearing 2 into the through hole 11 of the gear along the guide channel, which is beneficial to the installation of the bearing 2.

[0052] In some embodiments, as Figure 2 and Figure 3 As shown, the gear body 14 of this embodiment is further configured with a second boss 16 .

[0053] The second boss 16 is disposed on the second side of the gear body 14 , and the rib 12 is located in a region corresponding to the through hole 11 and the second boss 16 .

[0054] It is understandable that if the retaining edge 12 is directly set on the gear body 14, since the thickness of the bearing 2 needs to be left between the groove 13 and the edge, the thickness of the original gear is too small and the thickness of the gear needs to be increased, which will increase the process of processing the gear teeth.

[0055] In this embodiment, a second boss 16 is configured on the second side of the gear body 14. Since the outer diameter of the second boss 16 is smaller than the outer edge of the gear teeth of the gear body 14, only the annular boss needs to be processed, and there is no need to additionally process the gear teeth due to the increase in thickness, which saves processing steps and avoids material waste.

[0056] Specifically, the rib 12 can be arranged in a circle along the circumference of the through hole 11. The rib 12 arranged in a whole circle stops one side of the bearing 2 from 360°, which not only ensures that the bearing 2 is uniformly stressed along the circumferential direction, but also ensures that one side of the bearing 2 is reliably stopped no matter to which angle the bearing 2 rotates around the central axis, which helps to prevent the gear from falling off the bearing 2.

[0057] Optionally, in this embodiment, the outer side of the rib 12 is flush with the outer side of the second boss 16 , which ensures that the thickness of the second boss 16 is controlled within a suitable range and helps to leave enough space for placing the bearing 2 .

[0058] In some embodiments, a disassembly hole is provided on the retaining edge 12 of this embodiment; the disassembly hole is used for a disassembly tool to pass through so as to remove the bearing 2 from the through hole 11 .

[0059] It is understandable that when removing the bearing 2 from the through hole 11 of the gear, a disassembly tool is used to apply a force to the bearing 2 from the second boss 16, so that the bearing 2 moves from the second boss 16 toward the first boss 15 and is removed from the outside of the first boss 15. If the inner ring of the bearing 2 is damaged, the disassembly tool cannot abut against the outer ring of the bearing 2 from the through hole 11 of the second boss 16. The disassembly hole of this embodiment can facilitate the passage of the disassembly tool and apply a force to the outer ring of the bearing 2, which is conducive to the convenient disassembly of the bearing 2.

[0060] Specifically, one or more disassembly holes may be provided, and the multiple disassembly holes may be evenly arranged along the circumference of the retaining edge 12 so that the disassembly tool can apply a uniform force to the outer ring of the bearing 2 .

[0061] In some embodiments, as Figure 1 and Figure 4 As shown, the rib 12 of this embodiment is arc-shaped.

[0062] A plurality of ribs 12 are provided, and the ribs 12 are evenly arranged along the circumference of the through hole 11 .

[0063] It can be understood that the rib 12 of this embodiment is arc-shaped. Since the outer side of the bearing 2 is also arc-shaped, the outer edge of the rib 12 is consistent with the shape of the outer side of the bearing 2, which is conducive to uniform stopping of the outer side of the bearing 2 within the coverage area of ​​the rib 12. At the same time, multiple ribs 12 can uniformly stop the outer side of the bearing 2 along the circumferential direction, thereby achieving uniform force on the stopping of the bearing 2.

[0064] In a second aspect, in some embodiments, as Figure 4 、 Figure 5 and Figure 6 As shown, this embodiment provides a transmission device, including: a bearing 2, a fixing member 3 and an anti-falling gear 1 applied to the transmission box of a GDX2 packaging machine.

[0065] The bearing 2 is installed in the through hole 11 of the gear, the fixing member 3 is installed in the groove 13 , and the rib 12 and the fixing member 3 clamp the bearing 2 in the through hole 11 .

[0066] Specifically, since the transmission device includes an anti-fall-off gear 1, and the specific structure of the anti-fall-off gear 1 refers to the above embodiment, the transmission device shown in this embodiment includes all the technical solutions of the above embodiment. Therefore, it has at least all the beneficial effects achieved by all the technical solutions of the above embodiment, which will not be repeated here one by one.

[0067] It can be understood that the transmission device of this embodiment includes a bearing 2, a fixing part 3 and an anti-falling gear 1, the bearing 2 is installed in the through hole 11 of the anti-falling gear 1, the fixing part 3 is installed in the groove 13, and the retaining edge 12 and the fixing part 3 respectively limit the bearing 2 from both sides of the bearing 2 to prevent the gear from falling off the bearing 2.

[0068] Specifically, the fixing member 3 may be a spring retaining ring or a clip spring.

[0069] In some embodiments, as Figure 4 and Figure 5 As shown, the fixing member 3 of this embodiment is a clip spring.

[0070] The clip is clamped in the groove 13 .

[0071] It is understandable that the retaining spring has a simple structure and is easy to install and disassemble, and the retaining spring is flat and requires less space. The groove 13 can be set as a narrow strip groove, which saves installation space and costs.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An anti-drop gear used in the transmission box of a GDX2 packaging machine, characterized in that: The gear is provided with a through hole for accommodating a bearing, and the hole wall of the through hole is provided with a rib and a groove. The rib and the groove are spaced apart along the thickness direction of the gear, and are used to constrain the bearing between the rib and the fixed part installed in the groove.

2. The anti-dropping gear used in the transmission box of the GDX2 packaging machine according to claim 1 is characterized in that: include: a gear body, wherein the gear body is provided with a first boss; The first boss is provided on a first side of the gear body, and the through hole passes through the first boss and the gear body; The groove is located in a region of the through hole corresponding to the first boss.

3. The anti-dropping gear used in the transmission case of the GDX2 packaging machine according to claim 2 is characterized in that: The groove wall of the groove close to the second side of the gear body is flush with the rib.

4. The anti-dropping gear used in the transmission box of the GDX2 packaging machine according to claim 2, characterized in that: The distance between the groove wall close to the first boss and the outer side of the first boss is 3-4 mm.

5. The anti-dropping gear used in the transmission box of the GDX2 packaging machine according to claim 2, characterized in that: The end of the through hole located on the first boss is chamfered.

6. The anti-dropping gear used in the transmission box of the GDX2 packaging machine according to claim 2, characterized in that: The gear body is further provided with a second boss; The second boss is provided on the second side of the gear body, and the retaining edge is located in a region corresponding to the through hole and the second boss.

7. The anti-dropping gear used in the transmission box of the GDX2 packaging machine according to claim 1, characterized in that: The retaining edge is provided with a disassembly hole; the disassembly hole is used for a disassembly tool to pass through so as to remove the bearing from the through hole.

8. The anti-dropping gear used in the transmission box of the GDX2 packaging machine according to claim 1, characterized in that: The rib is arc-shaped; There are multiple ribs, and the ribs are evenly arranged along the circumference of the through hole.

9. A transmission device, characterized in that: include: A bearing, a fixing member, and an anti-falling gear applied to a transmission case of a GDX2 packaging machine as claimed in any one of claims 1 to 8; The bearing is installed in the through hole of the gear, the fixing piece is installed in the groove, and the rib and the fixing piece clamp the bearing in the through hole.

10. The transmission device according to claim 9, characterized in that The fixing member is a clip spring; The clamping spring is clamped in the groove.

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