Chain type transmission connecting mechanism and conveying device

Abstract

The utility model provides a chain type transmission connecting mechanism and a conveying device wherein the chain type transmission connecting mechanism comprises: a supporting seat, which comprises a main body and a cover body, the main body is provided with a mounting groove penetrating the main body along a first direction, and the cover body is detachably connected with the main body to seal the notch of the mounting groove; the first transmission shaft and the second transmission shaft are arranged in the first direction and extend in the first direction, the first end of the first transmission shaft and the first end of the second transmission shaft extend into the mounting groove, a groove extending in the radial direction of the first transmission shaft is formed in the first end of the first transmission shaft, and at least one end of the groove penetrates through the peripheral face of the first transmission shaft; a protrusion is arranged at the first end of the second transmission shaft and extends into the groove so that the first transmission shaft and the second transmission shaft can be in transmission connection. According to the chain type transmission connecting mechanism, the first transmission shaft and the second transmission shaft can be disassembled and assembled by moving in the radial direction of the first transmission shaft and the second transmission shaft, the disassembly and assembly process is simplified, and disassembly, assembly and maintenance are more convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of silicon wafer production equipment, and more specifically, to a chain transmission connection mechanism and a conveying device. Background Art

[0002] In related technologies, a conveyor device with multiple conveyor rollers can transport silicon wafers. These rollers are synchronously driven by a drive shaft and bevel gears mounted on the drive shaft. Because the silicon wafer production process is often filled with corrosive solutions such as acids and alkalis, which can easily corrode the drive shaft, frequent disassembly and maintenance are required.

[0003] In the prior art, the transmission shaft of the conveying device is composed of multiple shorter transmission shafts connected in sequence. Adjacent transmission shafts are connected through nesting and insertion and are supported by a support seat. In order to facilitate disassembly and assembly, a quick-release structure is provided on some transmission shafts. During the disassembly and assembly process, it is necessary to first remove the quick-release structure, and then move some transmission shafts axially for a certain distance so that the transmission shaft that needs maintenance is axially separated from the adjacent transmission shafts before the corresponding transmission shaft can be removed. The disassembly and assembly process is complicated and time-consuming. Utility Model Content

[0004] The utility model provides a new technical solution for a chain transmission connection mechanism, which can at least solve the problem of troublesome assembly and disassembly of the chain transmission connection mechanism in the prior art.

[0005] The utility model also provides a conveying device, which includes the above-mentioned chain transmission connection mechanism.

[0006] According to the first aspect of the present utility model, a chain transmission connection mechanism is provided, including: a support seat, the support seat including a main body and a cover body, the main body having a mounting groove running through itself along a first direction, the cover body being detachably connected to the main body to close the notch of the mounting groove; a first transmission shaft and a second transmission shaft, the first transmission shaft and the second transmission shaft are arranged along the first direction and extend along the first direction respectively, the first end of the first transmission shaft and the first end of the second transmission shaft respectively extend into the mounting groove, the first end of the first transmission shaft is provided with a groove extending radially along the first transmission shaft, at least one end of the groove passes through the outer circumferential surface of the first transmission shaft, the first end of the second transmission shaft is provided with a protrusion, the protrusion extends into the groove to make the first transmission shaft and the second transmission shaft transmission connected.

[0007] Optionally, both ends of the groove respectively pass through the outer circumferential surface of the first transmission shaft.

[0008] Optionally, the protrusion extends in a radial direction of the second transmission shaft.

[0009] Optionally, a bearing is connected between the first transmission shaft and the inner wall surface of the installation groove, and / or a bearing is connected between the second transmission shaft and the inner wall surface of the installation groove.

[0010] Optionally, the first transmission shaft and the second transmission shaft include a first section and a second section respectively, the first section is located in the mounting groove, the second section is located outside the mounting groove, and a shaft sleeve is provided on the second section.

[0011] Optionally, the chain transmission connection mechanism further includes: a gear, which is sleeved on the second section and rotates synchronously with the second section.

[0012] Optionally, the first transmission shaft and the second transmission shaft respectively include: a first shaft body, which extends along the first direction; a first protective cover, which is arranged at the end of the first shaft body and rotates synchronously with the first shaft body, and the groove or the protrusion is provided at the end of the first protective cover away from the first shaft body, and the first protective cover is accommodated in the mounting groove.

[0013] Optionally, the cross section of the first shaft is polygonal.

[0014] Optionally, the first transmission shaft and the second transmission shaft respectively include: a second shaft body, the second shaft body extending along the first direction, the end of the second shaft body being provided with the groove and the protrusion; a second protective cover, the second protective cover being provided on the end of the second shaft body and wrapping the groove and the protrusion.

[0015] According to a second aspect of the present invention, a conveying device is provided, comprising the chain transmission connection mechanism described in any one of the above embodiments.

[0016] According to the chain transmission connection mechanism of the present invention, a detachable connecting main body and cover body are provided to support the first transmission shaft and the second transmission shaft, and a groove extending along its own radial direction is provided on the first transmission shaft, and at least one end of the groove is used to form an opening on the outer peripheral surface of the first transmission shaft, which cooperates with the protrusion on the second transmission shaft. While realizing the transmission connection, the protrusion can also be enabled to exit the groove along the radial direction of the first transmission shaft, so that during the disassembly and assembly process of the chain transmission connection mechanism, the first transmission shaft and the second transmission shaft only need to move in their own radial direction, and do not need to move along their own axial direction, and do not need to cooperate with the movement of other transmission shafts in the chain transmission mechanism to complete the disassembly and assembly, which is conducive to simplifying the disassembly and assembly process, shortening the disassembly and assembly time, and making disassembly and assembly maintenance more convenient and efficient.

[0017] Other 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 accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

[0019] Figure 1 This is a perspective view of a chain transmission connection mechanism according to an embodiment of the present invention;

[0020] Figure 2 yes Figure 1 A magnified view of the middle part of the structure;

[0021] Figure 3 1 is a top view of a chain transmission connection mechanism according to an embodiment of the present invention;

[0022] Figure 4 This is a top view of a chain transmission connection mechanism according to an embodiment of the present invention with the cover removed;

[0023] Figure 5 yes Figure 4 A magnified view of the middle part of the structure;

[0024] Figure 6 It is along Figure 4 Cross-sectional view along line AA;

[0025] Figure 7 yes Figure 6 A magnified view of the middle part of the structure;

[0026] Figure 8 It is a side view of a chain transmission connection mechanism according to an embodiment of the present utility model.

[0027] Reference numerals

[0028] 100. Chain transmission connection structure;

[0029] 10. Support base; 11. Main body; 12. Cover; 13. Mounting slot;

[0030] 21. First transmission shaft; 22. Second transmission shaft; 23. Groove; 231. Opening; 24. Protrusion; 25. First section; 26. Second section; 27. First shaft; 28. First protective cover;

[0031] 30. Bearing; 40. Bushing; 50. Gear. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0034] 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 part of the specification.

[0035] 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.

[0036] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0037] The chain transmission connection mechanism according to the embodiment of the present utility model will be described in detail below with reference to the accompanying drawings.

[0038] like Figures 1 to 8 As shown, the chain transmission connection mechanism according to the embodiment of the present invention includes: a support base 10, a first transmission shaft 21 and a second transmission shaft 22

[0039] Specifically, the support base 10 includes a main body 11 and a cover 12. The main body 11 has a mounting slot 13 extending through it along a first direction. The cover 12 is detachably connected to the main body 11 to close the notch of the mounting slot 13. A first transmission shaft 21 and a second transmission shaft 22 are arranged along the first direction and extend in the first direction respectively. The first end of the first transmission shaft 21 and the first end of the second transmission shaft 22 respectively extend into the mounting slot 13. The first end of the first transmission shaft 21 is provided with a groove 23 extending in the radial direction of the first transmission shaft 21. At least one end of the groove 23 extends through the outer circumference of the first transmission shaft 21. The first end of the second transmission shaft 22 is provided with a protrusion 24, which extends into the groove 23 to achieve a transmission connection between the first transmission shaft 21 and the second transmission shaft 22.

[0040] In other words, the chain transmission connection mechanism according to the embodiment of the present invention is mainly composed of the support base 10, the first transmission shaft 21 and the second transmission shaft 22. The support base 10 can be used to support the first transmission shaft 21 and the second transmission shaft 22.

[0041] The support base 10 primarily consists of a main body and a cover 12. The main body may have a mounting slot 13 extending through the main body in a first direction, that is, both ends of the mounting slot 13 are open. The cover 12 can be positioned over the main body and seal the notch of the mounting slot 13. Thus, the cover 12 and the main body cooperate to define a through-hole suitable for accommodating the first and second transmission shafts 21, 22. Furthermore, the cover 12 and the main body are detachably connected to facilitate assembly and disassembly of the first and second transmission shafts 21, 22.

[0042] The first transmission shaft 21 and the second transmission shaft 22 can extend along the first direction respectively. The first transmission shaft 21 and the second transmission shaft 22 have two ends in the first direction. The first end of the first transmission shaft 21 can be detachably connected to the first end of the second transmission shaft 22, and the first end of the first transmission shaft 21 can extend into the mounting groove 13 from one end of the mounting groove 13, and the first end of the second transmission shaft 22 can extend into the mounting groove 13 from the other end of the mounting groove 13.

[0043] The first end of the first transmission shaft 21 may be provided with a groove 23, which may be recessed toward the second end of the first transmission shaft 21. The first end of the second transmission shaft 22 may be provided with a protrusion 24, which may extend into the mounting groove 13 through the notch of the groove 23. The surface of the protrusion 24 may abut against the inner wall surface of the groove 23 to transmit force. Therefore, when one of the first transmission shaft 21 and the second transmission shaft 22 rotates, the other may also rotate together.

[0044] In addition, at least one end of the groove 23 can pass through the outer peripheral surface of the first transmission shaft 21, so that at least one end of the groove 23 can be formed into an opening 231. Therefore, the protrusion 24 on the second transmission shaft 22 can exit the groove 23 from the opening 231 of the groove 23 along the extension direction of the groove 23.

[0045] When the chain transmission connection mechanism needs to be disassembled, the cover 12 can be first removed from the main body so that the notch of the mounting groove 13 is open, and then the first transmission shaft 21 and the second transmission shaft 22 are rotated so that the opening 231 at one end of the groove 23 on the first transmission shaft 21 faces the notch of the mounting groove 13, and then the second transmission shaft 22 is lifted along the extension direction of the groove 23, so that the first transmission shaft 21 and the second transmission shaft 22 can be separated. Similarly, when installing the first transmission shaft 21 and the second transmission shaft 22, the first end of the first transmission shaft 21 can be first inserted into the mounting groove 13 from the notch of the mounting groove 13, and the opening 231 at one end of the groove 23 on the first transmission shaft 21 is aligned with the notch of the mounting groove 13, and then the second transmission shaft 22 can be moved along the extension direction of the groove 23 so that the protrusion 24 on the second transmission shaft 22 is inserted into the groove 23 from the opening 231 at one end of the groove 23, completing the connection between the first transmission shaft 21 and the second transmission shaft 22, and finally the cover 12 is placed on the main body.

[0046] Therefore, according to the chain transmission connection mechanism of the embodiment of the present invention, a detachably connected main body 11 and cover body 12 are provided to support the first transmission shaft 21 and the second transmission shaft 22, and a groove 23 extending along its own radial direction is provided on the first transmission shaft 21, and an opening 231 is formed on the outer peripheral surface of the first transmission shaft 21 by utilizing at least one end of the groove 23, which cooperates with the protrusion 24 on the second transmission shaft 22. While realizing the transmission connection, the protrusion 24 can also be enabled to exit the groove 23 along the radial direction of the first transmission shaft 21, so that during the disassembly and assembly process of the chain transmission connection mechanism, the first transmission shaft 21 and the second transmission shaft 22 only need to move in their own radial direction, without moving along their own axial direction, and do not need to cooperate with the movement of other transmission shafts in the chain transmission mechanism to complete the disassembly and assembly, which is conducive to simplifying the disassembly and assembly process, shortening the disassembly and assembly time, and making the disassembly and assembly maintenance more convenient and efficient.

[0047] In some specific embodiments, the chain transmission mechanism may include multiple support bases 10 and multiple transmission shafts, and the multiple transmission shafts may include a first transmission shaft 21 and a second transmission shaft 22. The connected ends of two adjacent transmission shafts may be supported on the support base 10, and at the connection between the two adjacent transmission shafts, the transmission shaft with the groove 23 may serve as the first transmission shaft 21, and the transmission shaft with the protrusion 24 may serve as the second transmission shaft 22.

[0048] According to one embodiment of the present invention, both ends of the groove 23 respectively penetrate the outer circumference of the first transmission shaft 21. In other words, the groove 23 can penetrate the outer circumference of the first transmission shaft 21 in the radial direction of the first transmission shaft 21 and form two openings 231. The groove 23 can be formed as a straight groove. Therefore, during the disassembly process, only one of the openings 231 needs to be aligned with the notch of the installation groove 13 to allow the protrusion 24 to be inserted into or withdrawn from the groove 23 through the opening 231. In other words, the protrusion 24 can enter or withdraw from the groove 23 through any opening 231, making the disassembly operation more convenient.

[0049] According to some other embodiments of the present invention, the protrusion 24 extends radially along the second transmission shaft 22. In other words, the protrusion 24 can be in a straight line shape, and the outer surface of the protrusion 24 can include two side surfaces, two end surfaces and a top surface. The two side surfaces of the protrusion 24 can abut against the two side wall surfaces of the groove 23 one by one to transmit force between the first transmission shaft 21 and the second transmission shaft 22. The top surface of the protrusion 24 can be spaced apart from the bottom surface of the groove 23 to form a gap, and the two end surfaces of the protrusion 24 can correspond one by one to the two openings 231 of the groove 23.

[0050] In this embodiment, the protrusion 24 is arranged to extend radially along the second transmission shaft 22, which can increase the area of ​​the protrusion 24 abutting against the groove 23, that is, increase the force-bearing surface between the two, which is beneficial to improving the reliability of the connection between the first transmission shaft 21 and the second transmission shaft 22.

[0051] Optionally, the length of the protrusion 24 may be equal to the length of the groove 23 .

[0052] In some other optional embodiments, the center line of the groove 23 intersects with the axis of the first transmission shaft 21 in a plane, that is, the groove 23 can pass through the rotation center line of the first transmission shaft 21, and the center line of the protrusion 24 intersects with the axis of the second transmission shaft 22 in a plane, that is, the protrusion 24 can pass through the rotation center line of the second transmission shaft 22, which can make the transmission connection between the first transmission shaft 21 and the second transmission shaft 22 more reliable.

[0053] In some specific embodiments of the present invention, a bearing 30 is connected between the first transmission shaft 21 and the inner wall surface of the mounting groove 13, and / or a bearing 30 is connected between the second transmission shaft 22 and the inner wall surface of the mounting groove 13. Thus, the friction between the first transmission shaft 21 and the support seat 10, and / or the friction between the second transmission shaft 22 and the support seat 10 can be changed from sliding friction to rolling friction, which is beneficial to reducing the friction between the two, reducing the wear of the chain transmission connection mechanism, and improving the service life of the chain transmission connection mechanism.

[0054] For example, Figure 5 and Figure 7 As shown, bearings 30 can be respectively provided on the first transmission shaft 21 and the second transmission shaft 22 , the inner ring of the bearing 30 can be connected to the outer peripheral surface of the first transmission shaft 21 or the second transmission shaft 22 , and the outer ring of the bearing 30 can be connected to the inner wall surface of the mounting groove 13 .

[0055] Alternatively, the bearing 30 may include a deep groove ball bearing.

[0056] According to some optional embodiments of the present invention, the first transmission shaft 21 and the second transmission shaft 22 respectively include a first section 25 and a second section 26, the first section 25 is located in the mounting groove 13, the second section 26 is located outside the mounting groove 13, and a shaft sleeve 40 is sleeved on the second section 26.

[0057] Specifically, the first transmission shaft 21 and the second transmission shaft 22 may respectively include a first section 25 and a second section 26 arranged along the first direction. The first section 25 may extend into the mounting groove 13 , and the second end may be located outside the mounting groove 13 .

[0058] Since the chain transmission connection mechanism usually works in a corrosive environment filled with acid and alkali, in order to ensure the strength of the transmission connection, the first transmission shaft 21 and the second transmission shaft 22 need to be made of high-strength materials, which are expensive and not corrosion-resistant.

[0059] By extending the first section 25 into the mounting groove 13 of the main body 11 and sealing the mounting groove 13 with the cover 12, the first section 25 is protected from corrosion. By fitting a sleeve 40 over the second section 26, the sleeve 40 protects the second section 26 from corrosion, thereby protecting the entire first transmission shaft 21 and the second transmission shaft 22. If the sleeve 40 corrodes to a certain extent, it can be replaced to enhance protection.

[0060] According to some other embodiments of the present invention, the chain transmission connection mechanism further includes a gear 50 , which is sleeved on the second section 26 and rotates synchronously with the second section 26 .

[0061] The gear 50 on the first transmission shaft 21 and the second transmission shaft 22 may be a first bevel gear. A chain transmission connection mechanism may be used in a conveying device. The conveying device may further include a second bevel gear and a conveying roller. The second bevel gear may be connected to the end of the conveying roller. The first bevel gear and the second bevel gear are meshed for transmission. The conveying roller may extend radially along the first transmission shaft 21. Silicon wafers may be conveyed on the conveying roller.

[0062] In this embodiment, a chain transmission mechanism is used, and multiple gears 50 can be driven by one power source, thereby driving multiple conveying rollers to move synchronously, and the transmission structure is simple and reliable.

[0063] In some specific embodiments of the present invention, the first transmission shaft 21 and the second transmission shaft 22 each include a first shaft 27 and a first protective sleeve 28. The first shaft 27 extends along the first direction. The first protective sleeve 28 is disposed at the end of the first shaft 27 and rotates synchronously with the first shaft 27. The end of the first protective sleeve 28 away from the first shaft 27 is provided with the groove 23 or the protrusion 24, and the first protective sleeve 28 is accommodated in the mounting groove.

[0064] Specifically, the first shaft 27 can extend along a first direction and can be made of a high-strength material, primarily for transmitting power. The end surface of the first shaft 27 can be flat, and a first protective sleeve 28 can be provided at the end of the first shaft 27. The groove 23 or the protrusion 24 can be provided on the first protective sleeve 28. The first transmission shaft 21 and the second transmission shaft 22 are connected by their respective first protective sleeves 28. A sleeve 40 can be provided around the outer periphery of the first shaft 27 to protect the first shaft 27 from corrosion. The first protective sleeve 28 can be provided on the end of the first shaft 27 to protect the end of the first shaft 27 from corrosion.

[0065] In this embodiment, the protrusion 24 and the groove 23 are provided on the first protective cover 28 , which is beneficial to simplifying the structure of the first shaft 27 and facilitating the processing of the protrusion 24 and the groove 23 .

[0066] In addition, in this embodiment, the end connection of the first transmission shaft 21 and the second transmission shaft 22 is mainly achieved through the first protective cover 28, that is, the two adjacent first protective covers 28 need to be in contact to transmit force. Therefore, the first protective covers 28 can be made of a material with higher hardness to improve the strength of the first protective covers 28.

[0067] Optionally, the first protective cover 28 and the first shaft 27 may be fixed by welding. The material of the first protective cover 28 may include but is not limited to PEEK (polyetheretherketone), which has the advantages of high temperature resistance and high mechanical strength.

[0068] According to some optional embodiments of the present invention, the cross-section of the first shaft body 27 is polygonal, which is conducive to reliable connection between the first shaft body 27 and the first protective cover 28 and the first shaft body 27 and the shaft sleeve 40, achieving synchronous rotation and avoiding relative sliding between the two.

[0069] For example, Figure 8As shown, the cross section of the first shaft body 27 may be a regular hexagon, and the cross section of the inner ring of the first protective sleeve 28 may also be a hexagon.

[0070] According to other embodiments of the present invention, the first transmission shaft 21 and the second transmission shaft 22 each include a second shaft body 11 and a second protective sleeve. The second shaft body 11 extends along the first direction, and the end of the second shaft body 11 is provided with the groove 23 and the protrusion 24. The second protective sleeve is mounted on the end of the second shaft body 11 and covers the groove 23 and the protrusion 24.

[0071] Specifically, the groove 23 and the protrusion 24 can be arranged on the second shaft body 11, and the second protective cover can have a shape roughly the same as the end of the second shaft body 11, so that the second protective cover can wrap the end of the second shaft body 11, and the shape of the groove 23 and the protrusion 24 can still be revealed on the outer surface of the second protective cover. That is to say, the second protective cover can be a protective cover on one side of the end surface of the second shaft body 11, which will not change the shape of the second shaft body 11 and is only used to isolate the acid and alkali solutions in the environment.

[0072] In this embodiment, the contact transmission force between the first transmission shaft 21 and the second transmission shaft 22 mainly acts on the second shaft body 11. The second shaft body 11, as the main force-bearing object, has sufficient strength itself, and the second protective cover only needs to isolate acid and alkali solutions, and has low strength requirements. Therefore, it can be made of a material with lower hardness, which is beneficial to reducing the use cost and replacement cost of the second protective cover.

[0073] Optionally, the second protective cover and the second shaft body 11 may be fixed by welding. The material of the second protective cover may include but is not limited to PVDF (polyvinylidene fluoride), which has the advantages of anti-aging and chemical resistance.

[0074] Optionally, the cross section of the second shaft body 11 may be polygonal.

[0075] An embodiment of the present utility model further provides a conveying device, which includes a chain transmission connection mechanism according to any of the above embodiments.

[0076] Since the chain transmission connection mechanism according to the embodiment of the present invention has the above-mentioned technical effects, the conveying device according to the embodiment of the present invention also has corresponding technical effects, that is, while realizing the transmission connection, the protrusion 24 can also be enabled to exit the groove 23 along the radial direction of the first transmission shaft 21, so that during the disassembly and assembly process of the chain transmission connection mechanism, the first transmission shaft 21 and the second transmission shaft 22 only need to move in their own radial direction, and do not need to move along their own axial direction, and do not need to cooperate with the movement of other transmission shafts in the chain transmission mechanism to complete the disassembly and assembly, which is conducive to simplifying the disassembly and assembly process, shortening the disassembly and assembly time, and making disassembly and assembly maintenance more convenient and efficient.

[0077] Although some specific embodiments of the present invention have been described in detail through examples, those skilled in the art will appreciate that the above examples are for illustration only and are not intended to limit the scope of the present invention. Those skilled in the art will appreciate that modifications may be made to the above embodiments 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 chain transmission connection mechanism, characterized in that: include: A support base, comprising a main body and a cover, wherein the main body has a mounting slot extending through the main body in a first direction, and the cover is detachably connected to the main body to close an opening of the mounting slot; A first transmission shaft and a second transmission shaft, the first transmission shaft and the second transmission shaft are arranged along the first direction and extend respectively along the first direction, the first end of the first transmission shaft and the first end of the second transmission shaft respectively extend into the mounting groove, the first end of the first transmission shaft is provided with a groove extending along the radial direction of the first transmission shaft, at least one end of the groove passes through the outer circumferential surface of the first transmission shaft, the first end of the second transmission shaft is provided with a protrusion, the protrusion extends into the groove to make the first transmission shaft and the second transmission shaft transmission connected.

2. The chain transmission connection mechanism according to claim 1, characterized in that: Both ends of the groove respectively pass through the outer circumferential surface of the first transmission shaft.

3. The chain transmission connection mechanism according to claim 1, characterized in that: The protrusion extends in a radial direction of the second transmission shaft.

4. The chain transmission connection mechanism according to claim 1, characterized in that: A bearing is connected between the first transmission shaft and the inner wall surface of the installation groove, and / or a bearing is connected between the second transmission shaft and the inner wall surface of the installation groove.

5. The chain transmission connection mechanism according to claim 1, characterized in that: The first transmission shaft and the second transmission shaft include a first section and a second section respectively. The first section is located in the installation groove, and the second section is located outside the installation groove. A shaft sleeve is sleeved on the second section.

6. The chain transmission connection mechanism according to claim 5, characterized in that: Also includes: A gear is sleeved on the second section and rotates synchronously with the second section.

7. The chain transmission connection mechanism according to any one of claims 1 to 6, characterized in that: The first transmission shaft and the second transmission shaft respectively include: a first shaft extending along the first direction; The first protective cover is arranged at the end of the first shaft and rotates synchronously with the first shaft. The groove or the protrusion is provided at one end of the first protective cover away from the first shaft, and the first protective cover is accommodated in the installation groove.

8. The chain transmission connection mechanism according to claim 7, characterized in that: The cross section of the first shaft is polygonal.

9. The chain transmission connection mechanism according to any one of claims 1 to 6, characterized in that: The first transmission shaft and the second transmission shaft respectively include: a second shaft body, the second shaft body extending along the first direction, the end portion of the second shaft body being provided with the groove and the protrusion; A second protective cover is sleeved on the end of the second shaft and covers the groove and the protrusion.

10. A conveying device, characterized in that: include: The chain transmission connection mechanism according to any one of claims 1 to 9.

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