Transmission shaft with mounting component

Abstract

The utility model discloses a transmission shaft with a mounting part, which comprises a main body assembly, a first connecting shaft, a second connecting shaft and a mounting plate, the connecting assembly comprises a mounting hole, an internal thread ring, a protective cover, an edge lug, an external thread and a first sealing gasket; the installation holes are formed in the installation disc and evenly distributed, the internal thread ring is connected to one side of the installation disc in a one-time forming mode, the external thread is formed in one end of the outer side of the protective cover, the protective cover is in threaded connection with the interior of the internal thread ring through the external thread, and the edge lugs are welded to the end, away from the external thread, of the protective cover and evenly distributed. The first sealing gasket is fixed to the end, close to the internal thread ring, of the protective cover. The problems that when an existing center shaft transmission shaft is installed, the number of installation holes formed in a flange plate is different, the flange plate cannot completely adapt to installation holes in a chain plate, if bolts are not installed in part of the installation holes, in the riding process, a large amount of dust enters a bearing through the installation holes, the bearing is abraded, and the rotation performance is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shaft moulds, in particular to a transmission shaft with a mounting component. Background Art

[0002] Drive shafts with mounting components are typically designed with specific interfaces, keyways, or fixtures to transmit rotational motion and force to different parts of a mechanical system. These mounting components enable the drive shaft to connect with gears, couplings, or other mechanical components, ensuring precise motion control and force transmission. A bicycle bottom bracket, which is the crank arm for the pedals, has a drive shaft mounted in bearings and secured to the chainrings via flanges.

[0003] When installing existing bottom bracket drive shafts, the number of mounting holes opened on the flange plate varies, and they cannot fully accommodate the mounting holes on the chain plate. If some mounting holes are not installed with bolts, a large amount of dust will enter the bearings through the mounting holes during riding, causing bearing wear and affecting rotational performance. Therefore, it is necessary to provide a drive shaft with mounting components that can adapt to the installation of different numbers of mounting holes and will not cause bearing wear due to installation problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a transmission shaft with a mounting component to solve the problem raised in the above-mentioned background technology that, when the existing middle bracket transmission shaft is installed, the number of mounting holes opened on the flange plate is different and cannot fully adapt to the mounting holes on the chain plate. If some mounting holes are not installed with bolts, a large amount of dust will enter the bearing through the mounting holes during riding, causing bearing wear and affecting rotation performance.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The utility model is a transmission shaft with a mounting component, comprising:

[0007] A main body assembly, the main body assembly comprising a first connecting shaft and a mounting plate;

[0008] The mounting plate is welded to one end of the first connecting shaft;

[0009] A connecting assembly comprising a mounting hole, an internal thread ring, a protective cover, side ears, an external thread, and a first sealing gasket;

[0010] The mounting holes are opened on the mounting plate and are evenly distributed. The internal thread ring is formed in one step and connected to one side of the mounting plate. The external thread is opened at one end of the outer side of the protective cover. The protective cover is screwed into the internal thread ring through the external thread. The side ears are welded to the end of the protective cover away from the external thread and are evenly distributed. The first sealing gasket is fixed to the end of the protective cover close to the internal thread ring.

[0011] Furthermore, the mounting holes are arc-shaped through holes, and there are six of them in total, which are symmetrically distributed in a ring shape.

[0012] Furthermore, the main body assembly further includes a second connecting shaft, a first internally threaded rod, and a second internally threaded rod;

[0013] The second connecting shaft is welded to one end of the first connecting shaft, the first internal threaded rod is welded to the middle of the end of the second connecting shaft away from the first connecting shaft, and the second internal threaded rod is welded to the middle of the end of the first connecting shaft away from the second connecting shaft.

[0014] Furthermore, it also includes a pressing assembly;

[0015] The pressing assembly includes a fixing plate and a second through hole;

[0016] The fixing plate is fixed to one end of the protective cover away from the internal thread ring, and the second through hole is arranged in the middle of the fixing plate.

[0017] Furthermore, the pressing assembly further comprises a first through hole, a movable post and a movable ring;

[0018] The first through hole is formed at one end of the protective cover away from the internal threaded ring. The movable post is movably connected in the first through hole. The movable ring is fixed at one end of the movable post and is located inside the protective cover.

[0019] Furthermore, the pressing assembly further comprises a pressing plate, a telescopic clamping block and a second sealing gasket;

[0020] The pressing plate is fixed to one end of the movable column away from the movable ring, the telescopic block is movably connected to the side of the pressing plate and movably connected in the second through hole, and the second sealing gasket is sleeved on the movable column and fixed to the side of the pressing plate.

[0021] Compared with the prior art, the advantages of the present invention are:

[0022] 1. The utility model provides a connecting assembly, and inserts the first connecting shaft and the second connecting shaft into the middle shaft bearing, fits the mounting plate into the middle of the chain plate, inserts the bolt into the mounting hole, aligns it with the mounting hole of the chain plate, adjusts the position, tightens the bolt, holds the protective cover, aligns the external thread with the internal thread ring, rotates the side ear, and screws the protective cover into the internal thread ring until the first sealing gasket fits tightly against the mounting plate. This arrangement facilitates the connection between the mounting plate and the chain plate, and improves the adaptability of the middle shaft drive shaft.

[0023] 2. The utility model provides a clamping assembly. After the protective cover is screwed into the internal threaded ring, the two pressure plates are pressed down by both hands to drive the movable column to move along the first through hole. When the telescopic block is inserted into the second through hole of the fixed plate, the second sealing gasket is tightly attached to the outside of the first through hole. At the same time, the movable ring is pressed against the outer end of the bolt on the mounting hole. This arrangement can prevent the bolt from loosening and causing instability of the central transmission shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a schematic diagram of the overall structure of the utility model from a first perspective;

[0026] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second perspective;

[0027] Figure 3 This is a schematic diagram of the mounting plate and internal thread ring structure of the utility model;

[0028] Figure 4 This is a schematic diagram of the position of the movable ring of the utility model;

[0029] Figure 5 This is a schematic diagram of the positions of the through holes and the fixing plate of the present utility model;

[0030] Figure 6 This is a schematic diagram of the protective cover structure of the present utility model;

[0031] Figure 7 This is a partial structural diagram of the compression assembly of the present invention.

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] 10. First connecting shaft; 11. Second connecting shaft; 12. First internally threaded rod; 13. Second internally threaded rod; 14. Mounting plate; 20. Mounting hole; 21. Internally threaded ring; 22. Protective cover; 23. Side ear; 24. External thread; 25. First sealing gasket; 30. First through hole; 31. Fixed plate; 32. Second through hole; 33. Pressing plate; 34. Telescopic block; 35. Second sealing gasket; 36. Movable column; 37. Movable ring. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0036] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0037] See also Figure 1-6 As shown, this embodiment is a transmission shaft with a mounting component, comprising:

[0038] The main body assembly includes a first connecting shaft 10 and a mounting plate 14;

[0039] The mounting plate 14 is welded to one end of the first connecting shaft 10;

[0040] The first connecting shaft 10 plays a connecting role, and the mounting plate 14 plays a connecting role;

[0041] The connecting assembly includes a mounting hole 20, an internal thread ring 21, a protective cover 22, a side ear 23, an external thread 24 and a first sealing gasket 25;

[0042] The mounting holes 20 are formed on the mounting plate 14 and are evenly distributed. The internal thread ring 21 is formed in one step and connected to one side of the mounting plate 14. The external thread 24 is formed at one end of the outer side of the protective cover 22. The protective cover 22 is screwed into the internal thread ring 21 through the external thread 24. The side ears 23 are welded to the end of the protective cover 22 away from the external thread 24 and are evenly distributed. The first sealing gasket 25 is fixed to the end of the protective cover 22 close to the internal thread ring 21.

[0043] The mounting hole 20 is used to fix the bolt, the internal thread ring 21 plays a connecting role, the protective cover 22 plays a protective role, the side ear 23 facilitates the hand to rotate the protective cover 22, the external thread 24 plays a connecting role, and the first sealing gasket 25 plays a sealing role;

[0044] The mounting holes 20 are arc-shaped through holes, and there are six of them, which are symmetrically distributed in a ring shape;

[0045] The main body assembly further includes a second connecting shaft 11, a first internally threaded rod 12 and a second internally threaded rod 13;

[0046] The second connecting shaft 11 is welded to one end of the first connecting shaft 10, the first internally threaded rod 12 is welded to the middle of the end of the second connecting shaft 11 away from the first connecting shaft 10, and the second internally threaded rod 13 is welded to the middle of the end of the first connecting shaft 10 away from the second connecting shaft 11;

[0047] The second connecting shaft 11 plays a connecting role, and the first internally threaded rod 12 and the second internally threaded rod 13 are used to connect to the cranks on the pedals.

[0048] Working principle:

[0049] Insert the first connecting shaft 10 and the second connecting shaft 11 into the middle shaft bearing, fit the mounting plate 14 into the middle of the chain plate, insert the bolt into the mounting hole 20, align it with the mounting hole 20 of the chain plate, adjust the position, tighten the bolt, hold the protective cover 22, align the external thread 24 with the internal thread ring 21, turn the side ear 23, and screw the protective cover 22 into the internal thread ring 21 until the first sealing gasket 25 is close to the mounting plate 14.

[0050] This step facilitates the connection between the mounting plate 14 and the chain plate, thereby improving the adaptability of the center shaft transmission shaft.

[0051] See also Figure 5 、 Figure 7 This embodiment is based on the above embodiment and further includes:

[0052] A pressing assembly, the pressing assembly includes a fixing plate 31 and a second through hole 32;

[0053] The fixing plate 31 is fixed to the end of the protective cover 22 away from the internal thread ring 21, and the second through hole 32 is opened in the middle of the fixing plate 31;

[0054] The fixing plate 31 plays a supporting role, and the second through hole 32 plays a connecting and limiting role;

[0055] The pressing assembly further includes a first through hole 30, a movable post 36 and a movable ring 37;

[0056] The first through hole 30 is formed at one end of the protective cover 22 away from the internal thread ring 21. The movable post 36 is movably connected to the first through hole 30. The movable ring 37 is fixed to one end of the movable post 36 and is located inside the protective cover 22.

[0057] The first through hole 30 acts as a limiter, providing a movable space for the movable column 36. The movable column 36 acts as a connection, and the movable ring 37 acts as a compression.

[0058] The pressing assembly further includes a pressing plate 33, a telescopic clamping block 34 and a second sealing gasket 35;

[0059] The pressure plate 33 is fixed to the end of the movable column 36 away from the movable ring 37. The telescopic block 34 is movably connected to the side of the pressure plate 33 and movably connected to the second through hole 32. The second sealing gasket 35 is sleeved on the movable column 36 and fixed to the side of the pressure plate 33.

[0060] The pressing plate 33 plays a connecting role to facilitate manual operation, the telescopic block 34 plays a connecting and limiting role, and the second sealing gasket 35 plays a sealing role.

[0061] Working principle:

[0062] After the protective cover 22 is screwed into the internal threaded ring 21, press the two pressure plates 33 with both hands to drive the movable column 36 to move along the first through hole 30. When the telescopic block 34 is inserted into the second through hole 32 on the fixed plate 31, the second sealing gasket 35 is tightly attached to the outside of the first through hole 30. At the same time, the movable ring 37 presses the outer end of the bolt on the mounting hole 20 to prevent the bolt from loosening and causing instability of the central shaft transmission shaft.

[0063] This step can prevent the bolts from loosening and causing instability in the middle shaft drive shaft.

[0064] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0065] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A transmission shaft with a mounting component, characterized in that: include: A main body assembly, the main body assembly comprising a first connecting shaft (10) and a mounting plate (14); The mounting plate (14) is welded to one end of the first connecting shaft (10); A connecting assembly comprising a mounting hole (20), an internal thread ring (21), a protective cover (22), a side ear (23), an external thread (24) and a first sealing gasket (25); The mounting holes (20) are opened on the mounting plate (14) and are evenly distributed. The internal thread ring (21) is formed in one step and connected to one side of the mounting plate (14). The external thread (24) is opened at one end of the outer side of the protective cover (22). The protective cover (22) is screwed into the internal thread ring (21) through the external thread (24). The side ears (23) are welded to the end of the protective cover (22) away from the external thread (24) and are evenly distributed. The first sealing gasket (25) is fixed to the end of the protective cover (22) close to the internal thread ring (21).

2. A transmission shaft with a mounting component according to claim 1, characterized in that: The mounting holes (20) are arc-shaped through holes, and there are six of them in total, distributed symmetrically in a ring shape.

3. The transmission shaft with a mounting component according to claim 1, characterized in that: The main body assembly further comprises a second connecting shaft (11), a first internally threaded rod (12) and a second internally threaded rod (13); The second connecting shaft (11) is welded to one end of the first connecting shaft (10), the first internally threaded rod (12) is welded to the middle of one end of the second connecting shaft (11) away from the first connecting shaft (10), and the second internally threaded rod (13) is welded to the middle of one end of the first connecting shaft (10) away from the second connecting shaft (11).

4. The transmission shaft with a mounting component according to claim 1, characterized in that: Also included is a hold-down assembly; The pressing assembly comprises a fixing plate (31) and a second through hole (32); The fixing plate (31) is fixed to one end of the protective cover (22) away from the internal thread ring (21), and the second through hole (32) is opened in the middle of the fixing plate (31).

5. The transmission shaft with a mounting component according to claim 4, characterized in that: The pressing assembly further comprises a first through hole (30), a movable column (36) and a movable ring (37); The first through hole (30) is formed at one end of the protective cover (22) away from the internal threaded ring (21), the movable column (36) is movably connected in the first through hole (30), and the movable ring (37) is fixed to one end of the movable column (36) and is located inside the protective cover (22).

6. The transmission shaft with a mounting component according to claim 5, characterized in that: The pressing assembly further includes a pressing plate (33), a telescopic clamping block (34) and a second sealing gasket (35); The pressing plate (33) is fixed to one end of the movable column (36) away from the movable ring (37), the telescopic block (34) is movably connected to the side of the pressing plate (33) and movably connected in the second through hole (32), and the second sealing gasket (35) is sleeved on the movable column (36) and fixed to the side of the pressing plate (33).

Images