Rotating mechanism of mortise and tenon joint structure
The mortise and tenon structure of the rotating mechanism solves the problems of reduced mechanical strength and high processing costs caused by welding the rotating shaft and rotating parts, achieving cost reduction and improved stability, and is suitable for equipment such as hay shredders.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-07
AI Technical Summary
In existing rotating mechanisms, the rotating shaft and rotating components are fixed by welding, which reduces mechanical strength, makes them prone to breakage, and the welding process is costly. Furthermore, fixing them with bushings requires additional components and precision requirements.
The device employs a mortise and tenon structure, which is connected by a combination of a rotating shaft, an inner rotating disc, an outer rotating disc, abutting reinforcing ribs, and inserting reinforcing ribs. The mortise and tenon structure is used to fix the inner and outer rotating discs to the rotating shaft, avoiding welding stress deformation and simplifying the processing.
It reduces the manufacturing cost of the rotating mechanism, extends the service life of the rotating shaft, and improves the ease of operation and stability, making it suitable for equipment such as hay shredders.
Smart Images
Figure CN224084191U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of rotating mechanism technology, and specifically relates to a rotating mechanism with a mortise and tenon structure. Background Technology
[0002] Hay shredders and similar equipment require a rotating mechanism. This mechanism typically includes a rotating shaft driven by a motor, on which rotating components such as a cutter disc, blades, and a tail plate are fixed. These components are further secured by reinforcing ribs parallel to the rotating shaft. When the shaft rotates, it drives the cutter disc, blades, and tail plate to rotate, thus shredding the hay. Similarly, the transmission mechanism of the hay shredder also consists of gears and other transmission components fixed to the rotating shaft. The rotation of the shaft drives these components to rotate, thereby transmitting power.
[0003] In existing rotating mechanisms, rotating components are typically fixed to a rotating shaft by welding or using bushings. While welding ensures a stable connection, the weld points on the shaft can cause stress deformation, requiring secondary machining. Furthermore, weld points reduce the shaft's mechanical strength, increasing its susceptibility to breakage and significantly lowering the safety factor of the rotating mechanism. Additionally, machining the shaft with welded components is time-consuming and labor-intensive. While using bushings to fix the rotating components to the shaft solves the stress deformation problem, it requires the addition of the bushing, increasing costs and demanding higher machining precision from both the bushing and the shaft.
[0004] This application improves the existing rotating mechanism to further reduce the manufacturing cost of the rotating mechanism, thereby reducing the production cost of the hay shredder. Utility Model Content
[0005] The purpose of this utility model is to provide a rotating mechanism with a mortise and tenon structure, which solves the problem that in many existing rotating mechanisms, the rotating shaft and rotating disk are connected by welding, and the mechanical strength of the rotating shaft is reduced and it is easy to break due to welding stress.
[0006] The specific technical solution is as follows:
[0007] A rotating mechanism with a mortise and tenon structure includes a rotating shaft, an inner rotating disc, an outer rotating disc, abutting reinforcing ribs, and inserting reinforcing ribs.
[0008] The diameter of the middle part of the rotating shaft is larger than the diameter of the end part, and the rotating shaft has at least one keyway, the extension direction of the keyway being parallel to the extension direction of the center of the rotating shaft;
[0009] The rotating inner disk is installed in the middle of the rotating shaft. The rotating inner disk is provided with an inner disk shaft hole and an inner disk reinforcing rib hole. The inner disk shaft hole is located at the center of the rotating inner disk and matches the diameter of the middle part of the rotating shaft. The inner disk reinforcing rib holes are spaced apart along the outer circumference of the inner disk shaft hole and are connected to the inner disk shaft hole.
[0010] The rotating outer disk is installed at the smaller diameter of the rotating shaft. The rotating outer disk is provided with an outer disk shaft hole, an outer disk reinforcing rib hole, and an insertion reinforcing rib hole. The outer disk shaft hole is located at the center of the rotating outer disk and matches the diameter of the end of the rotating shaft. The outer disk reinforcing rib hole and the insertion reinforcing rib hole are spaced apart along the outer circumference of the outer disk shaft hole. The outer disk reinforcing rib hole is not connected to the outer disk shaft hole, and the insertion reinforcing rib hole is connected to the outer disk shaft hole.
[0011] The abutting reinforcing rib passes through the inner and outer disk reinforcing rib holes, and serves to connect and fix the rotating inner and outer disks. The abutting reinforcing rib has a first mounting groove and a second mounting groove; the first mounting groove is used to mount the rotating inner disk, and the second mounting groove is used to mount the rotating outer disk.
[0012] The insert reinforcing rib passes through the inner disk reinforcing rib hole and the insert reinforcing rib hole, and is inserted into the keyway of the rotating shaft to connect and fix the inner rotating disk and the outer rotating disk. The insert reinforcing rib includes a mounting part, a locking part, and an inserting part. The mounting part is provided with a third mounting groove and a fourth mounting groove. The third mounting groove is used to install the inner rotating disk, and the fourth mounting groove is used to install the outer rotating disk. The inserting part is inserted into the keyway, and the locking part is inserted between the mounting part and the inserting part, thus fixing the insert reinforcing rib to the inner disk reinforcing rib hole and the insert reinforcing rib hole.
[0013] Preferably, the ends of the abutting reinforcing rib and the inserting reinforcing rib are further fixed to the rotating outer disk by an annular locking member; or, the ends of the abutting reinforcing rib and the inserting reinforcing rib are further fixed to the rotating outer disk by welding or glue.
[0014] Preferably, the ends of the abutting reinforcing rib and the inserting reinforcing rib are further fixed to the rotating outer disk by an annular locking member; or, the ends of the abutting reinforcing rib and the inserting reinforcing rib are further fixed to the rotating outer disk by welding or glue.
[0015] Preferably, there are three abutment reinforcing ribs and one insertion reinforcing rib.
[0016] Preferably, there are two abutting reinforcing ribs and two inserting reinforcing ribs, and the abutting reinforcing ribs and inserting reinforcing ribs are arranged alternately. The two inserting reinforcing ribs can have different structures, that is, only one reinforcing rib can have an inserting part, and the other inserting reinforcing rib can be integrally formed.
[0017] Preferably, both the first mounting groove and the second mounting groove are U-shaped with open outer ends, that is, the end of the reinforcing rib extends to the outer side of the rotating outer disk, the outer side of the rotating outer disk is provided with the annular locking member, and the inner side of the annular locking member is provided with a locking groove corresponding to the position of the reinforcing rib.
[0018] Preferably, the annular locking component is composed of at least two sector-shaped components joined together, and the sector-shaped components have the locking groove on their inner side.
[0019] Preferably, the first mounting groove is a U-shaped groove with an open outer end, and the second mounting groove is an L-shaped groove, that is, the ends of the abutting reinforcing rib and the inserting reinforcing rib are inserted into the rotating outer disk, and the ends of the abutting reinforcing rib and the inserting reinforcing rib are fixed to the rotating outer disk by spot welding.
[0020] Preferably, the keyway extends from the middle of the larger diameter of the rotating shaft to the smaller diameter of the rotating shaft.
[0021] Preferably, there are two keyways, which are spaced apart on both sides of the rotating shaft and extend from the larger diameter of the rotating shaft to the smaller diameter; the reinforcing ribs also have two corresponding insertion portions. The spaced-apart keyways provide a more stable structure compared to a keyway that runs across the entire middle of the rotating shaft.
[0022] Compared with existing technologies, this utility model has the following beneficial effects:
[0023] 1. This utility model involves machining a rotating shaft into a stepped shape with different diameters and setting a keyway on the rotating shaft; shaft holes and reinforcing rib holes are respectively set on the inner and outer rotating disks; a first mounting groove and a second mounting groove are set on the abutting reinforcing rib; and a mounting part, a locking part, and a plugging part are set on the insertion reinforcing rib. In use, the abutting reinforcing rib is inserted into the reinforcing rib hole to position the inner and outer rotating disks at different locations. Then, the rotating shaft is inserted, and the plugging part of the insertion reinforcing rib is inserted into the keyway, and the mounting part of the insertion reinforcing rib is engaged with the inner and outer rotating disks. Finally, the locking part is inserted to fix the insertion reinforcing rib to the reinforcing rib holes of the inner disk and the insertion reinforcing rib, thereby fixing the inner and outer rotating disks to the rotating shaft. This solution utilizes a mortise and tenon structure to fix the rotating shaft to the inner and outer rotating disks, etc. Compared with traditional welding fixation, it avoids stress deformation caused by welding to the rotating shaft, reduces secondary processing, and extends the service life of the rotating shaft. Compared to fixing with bushings, there is no need to purchase additional bushings, which can reduce processing costs.
[0024] 2. This utility model allows for batch processing of the rotating shafts before assembly. Compared to the traditional method of welding the rotating shaft to components such as the inner and outer rotating discs before secondary machining on a lathe, this reduces the number of steps and improves operational convenience. Furthermore, due to the absence of welding stress deformation, the diameter of the rotating shaft used in this method is smaller than that required for welding, further reducing the cost of the rotating mechanism and thus lowering the production cost of the hay shredder.
[0025] 3. The end of the reinforcing rib in this application can be provided with a U-shaped second or L-shaped mounting groove. When the U-shaped second mounting groove is provided to fix the rotating outer disk, an annular locking component can be provided to further fix the end of the reinforcing rib to the rotating outer disk, thereby further improving the overall stability of the rotating mechanism.
[0026] 4. The rotating mechanism of this mortise and tenon structure can be applied to existing crushing devices, transmission devices, etc., with a wide range of applications and the effect of increasing efficiency. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale.
[0028] Figure 1 This is a schematic diagram of the rotating mechanism of the mortise and tenon structure of this utility model.
[0029] Figure 2 This is a cross-sectional structural diagram of the rotating mechanism of the mortise and tenon structure of this utility model.
[0030] Figure 3 This is a schematic diagram showing the disassembled structure of the rotating mechanism of the mortise and tenon structure of this utility model.
[0031] Figure 4 This is a schematic diagram of the rotating shaft in another embodiment of the present invention.
[0032] Figure 5 This is a schematic diagram of the structure of the inserted reinforcing rib in another embodiment of this utility model.
[0033] Explanation of key figure labels:
[0034] 1. Rotating shaft; 11. Keyway; 2. Rotating inner disc; 21. Inner disc shaft hole; 22. Inner disc reinforcing rib hole; 3. Rotating outer disc; 31. Outer disc shaft hole; 32. Outer disc reinforcing rib hole; 33. Insertion reinforcing rib hole; 4. Abutment reinforcing rib; 41. First mounting groove; 42. Second mounting groove; 5. Insertion reinforcing rib; 51. Mounting part; 511. Third mounting groove; 512. Fourth mounting groove; 52. Locking part; 53. Insertion part; 6. Annular locking part; 61. Locking groove. Detailed Implementation
[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0036] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top surface", "bottom surface", "inner", "outer", "inner side", "outer side", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0037] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first," "second," and "third" are used in the description, they are for descriptive purposes and to distinguish technical features, and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the sequential relationship of the indicated technical features.
[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will now be described based on its overall structure.
[0039] Example 1
[0040] like Figure 1-2 As shown, a mortise and tenon joint rotating mechanism includes a rotating shaft 1, an inner rotating disk 2, an outer rotating disk 3, abutting reinforcing ribs 4, and inserting reinforcing ribs 5. The inserting reinforcing rib 5 includes a mounting part 51, a locking part 52, and an inserting part 53. In this embodiment, there are two inner rotating disks 2, two outer rotating disks 3, three abutting reinforcing ribs 4, and one inserting reinforcing rib 5. Of course, in other embodiments, different numbers of inner rotating disks 2, outer rotating disks 3, abutting reinforcing ribs 4, and inserting reinforcing ribs 5 can be provided as needed.
[0041] This application uses abutment reinforcing ribs 4 and insertion reinforcing ribs 5 to fix the inner rotating disk 2 and the outer rotating disk 3 to the rotating shaft 1 respectively, and adopts a mortise and tenon structure connection to overcome the problems of stress deformation and high processing cost caused by traditional welding fixing of rotating shaft 1 and rotating disk.
[0042] like Figure 3 As shown, the diameter of the middle part of the rotating shaft 1 is larger than the diameters of the two ends. A keyway 11 is provided on the rotating shaft 1. The extension direction of the keyway 11 is parallel to the extension direction of the center of the rotating shaft 1, and extends from the larger diameter part of the middle part of the rotating shaft 1 to the smaller diameter part of the ends of the rotating shaft 1. A distance is left between the end of the keyway 11 and the end of the rotating shaft 1. In this embodiment, the rotating shaft 1 can be directly mass-produced on a lathe and then assembled.
[0043] like Figure 1-2As shown, the rotating inner disk 2 is spaced apart and installed in the middle of the rotating shaft 1. Figure 3 As shown, the rotating inner disk 2 is provided with an inner disk shaft hole 21 and inner disk reinforcing rib holes 22. The inner disk shaft hole 21 is located at the center of the rotating inner disk 2 and matches the diameter of the middle part of the rotating shaft 1. There are four inner disk reinforcing rib holes 22, which are spaced apart along the outer circumference of the inner disk shaft hole 21, and the inner disk reinforcing rib holes 22 are connected to the inner disk shaft hole 21. The inner disk shaft hole 21 is used for the rotating shaft 1 to pass through, and the inner disk reinforcing rib holes 22 are respectively used for the abutting reinforcing rib 4 and the insertion reinforcing rib 5 to pass through.
[0044] like Figure 1-2 As shown, the outer rotating disk 3 is mounted on the outer side of the inner rotating disk 2 at the smaller diameter position of the rotating shaft 1. Figure 3 As shown, the rotating outer disk 3 is provided with an outer disk shaft hole 31, an outer disk reinforcing rib hole 32, and a connecting reinforcing rib hole 33. The outer disk shaft hole 31 is located at the center of the rotating outer disk 3 and matches the diameter of the end of the rotating shaft 1. The diameter of the outer disk shaft hole 31 is smaller than the diameter of the inner disk shaft hole 21. The outer disk reinforcing rib hole 32 and the connecting reinforcing rib hole 33 are spaced apart along the outer circumference of the outer disk shaft hole 31. The outer disk reinforcing rib hole 32 is not connected to the outer disk shaft hole 31, while the connecting reinforcing rib hole 33 is connected to the outer disk shaft hole 31. The width of the outer disk reinforcing rib hole 32 is equal to the width of the inner disk reinforcing rib hole 22, and the height of the outer disk reinforcing rib hole 32 is smaller than the height of the inner disk reinforcing rib hole 22. The width of the connecting reinforcing rib hole 33 is equal to the width of the inner disk reinforcing rib hole 22, and the height of the connecting reinforcing rib hole 33 is greater than the height of the inner disk reinforcing rib hole 22. When the centers of the outer basin shaft hole and the inner disc shaft hole 21 are coaxial, the outer disc reinforcing rib hole 32, the insertion reinforcing rib hole 33, and the outer end of the inner disc reinforcing rib hole 22 are located on the same circle.
[0045] like Figure 2-3As shown, the reinforcing rib 4 penetrates the inner disc reinforcing rib hole 22 and the outer disc reinforcing rib hole 32, and is used to connect and fix the rotating inner disc 2 and the rotating outer disc 3. The reinforcing rib 4 has a first mounting groove 41 and a second mounting groove 42. The first mounting groove 41 is used to install the rotating inner disc 2, and the second mounting groove 42 is used to install the rotating outer disc 3. In this embodiment, there are two of each of the first and second mounting grooves 41, allowing for the installation of two rotating inner discs 2 and two rotating outer discs 3. In actual use, the number of rotating inner and outer discs can be adjusted as needed. During use, the reinforcing rib 4 can be engaged with the rotating inner disc 2 and the rotating outer disc 3 respectively, and then fed into the rotating shaft 1. At this time, the end of the reinforcing rib 4 away from the mounting groove abuts against the rotating shaft 1, and the rotating inner disc 2 and the rotating outer disc 3 are respectively engaged in the first mounting groove 41 and the second mounting groove 42. Therefore, the distance between the rotating inner disc 2 and the rotating outer disc 3 is fixed.
[0046] like Figure 1 and Figure 3 As shown, the reinforcing rib 5 penetrates the reinforcing rib hole 22 and the reinforcing rib 5 hole 33 of the inner disk and is inserted into the keyway 11 of the rotating shaft 1, for connecting and fixing the inner rotating disk 2 and the outer rotating disk 3. Figure 3 The reinforcing rib 5 includes a mounting part 51, a locking part 52, and a connecting part 53. The mounting part 51 is provided with a third mounting groove 511 and a fourth mounting groove 512. The third mounting groove 511 is used to mount the rotating inner disk 2, and the fourth mounting groove 512 is used to mount the rotating outer disk 3. In this embodiment, there are two third mounting grooves 511 and two fourth mounting grooves 512, that is, one reinforcing rib 5 can simultaneously mount two rotating inner disks 2 and two rotating outer disks 3. The connecting part 53 is inserted into the keyway 11, and the locking part 52 is inserted between the mounting part 51 and the connecting part 53, fixing the reinforcing rib 5 to the inner disk reinforcing rib hole 22 and the connecting reinforcing rib 5 hole 33. Preferably, the side of the mounting part 51 that connects with the locking part 52 is concave, and the side of the insertion part 53 that connects with the locking part 52 is also concave. The two ends of the insertion part 53 are corresponding protrusions, and the engagement between the protrusions and the concave shape is more secure. During installation, the mounting part 51 and the insertion part 53 are first installed and fixed, and then the locking part 52 is inserted. At this point, the mounting part 51, the insertion part 53, and the locking part 52 completely fill the inner disc reinforcing rib hole 22 and the insertion reinforcing rib 5 hole 33. Since the insertion part 53 is inserted into the rotating shaft 1, it can effectively fix the insertion reinforcing rib 5 and the rotating inner disc 2 and rotating outer disc 3 mounted on the insertion reinforcing rib 5.
[0047] Combination Figure 2-3The ends of the abutting reinforcing rib 4 and the inserting reinforcing rib 5 are further fixed to the rotating outer disk 3 by an annular engaging member 6. Figure 3 The annular engaging member 6 is an annular structure with spaced slots 61, the size and position of which correspond to the size and position of the reinforcing rib holes 32 on the outer disk. In other embodiments, the annular engaging member 6 may not be provided, and the ends of the abutting reinforcing rib 4 and the inserting reinforcing rib 5 may be further fixed to the rotating outer disk 3 by welding or glue.
[0048] The installation method of this mortise and tenon structure rotating mechanism is as follows: The abutment reinforcing rib 4 is engaged with the inner rotating disk 2 and the outer rotating disk 3 respectively, then the rotating shaft 1 is inserted. Next, the mounting part 51 and the insertion part 53 of the abutment reinforcing rib 4 are installed. Finally, the locking part 52 is inserted between the mounting part 51 and the insertion part 53, thereby locking the mounting part 51 and the insertion part 53. The insertion part 53 then locks the rotating shaft 1 to the inner rotating disk 2 and the outer rotating disk 3 respectively. Furthermore, the ends of the abutment reinforcing rib 4 and the insertion reinforcing rib 5 are further fixed to the outer rotating disk 3 by an annular engaging member 6. This rotating mechanism does not require welding on the rotating shaft 1, thus avoiding stress deformation, and also eliminates the need to process the welded rotating shaft 1 on a machine tool, making operation simple.
[0049] Example 2
[0050] Combination Figure 4 In this embodiment, the structure of the rotating shaft of the rotating mechanism is different. The rotating shaft is provided with two keyways, which are spaced apart on both sides of the rotating shaft and extend from the larger diameter of the rotating shaft to the smaller diameter. Correspondingly, as... Figure 5 As shown, the reinforcing rib also has two corresponding insertion parts, which are spaced apart and inserted into the keyway respectively. The two keyways are spaced apart, which makes the insertion operation more convenient compared to the keyway running through the middle of the entire rotating shaft, and the reinforcing rib is less likely to slide laterally, resulting in a more stable structure.
[0051] In summary, this utility model processes the rotating shaft 1 into a stepped shape with different diameters and provides a keyway 11 on the rotating shaft 1; shaft holes and reinforcing rib holes are respectively provided on the inner rotating disk 2 and the outer rotating disk 3; mounting grooves are provided on the abutting reinforcing rib 4; and mounting parts 51, locking parts 52, and insertion parts 53 are provided on the insertion reinforcing rib 5. The insertion part 53 of the reinforcing rib is inserted into the keyway 11 of the rotating shaft 1, and the inner rotating disk 2 and the outer rotating disk 3 are connected, positioned, and fixed to the rotating shaft 1 through the mounting grooves on the reinforcing rib. This avoids stress deformation of the rotating shaft 1 caused by welding, reduces secondary processing, and extends the service life of the rotating shaft 1. Furthermore, compared with fixing via bushings, no additional bushings are required, reducing processing costs. This mortise and tenon structure rotating mechanism can be used in the crushing mechanism of a hay crusher, as well as in rotating mechanisms such as belt conveyors.
[0052] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art, after reading this specification, can make modifications, substitutions, variations, and various choices and changes to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, variations, and choices and changes are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A rotating mechanism with a mortise and tenon structure, comprising a rotating shaft, an inner rotating disk, an outer rotating disk, abutting reinforcing ribs, and inserting reinforcing ribs, characterized in that, The diameter of the middle part of the rotating shaft is larger than the diameter of the end part, and the rotating shaft has at least one keyway, the extension direction of the keyway being parallel to the extension direction of the center of the rotating shaft; The rotating inner disk is installed in the middle of the rotating shaft. The rotating inner disk is provided with an inner disk shaft hole and an inner disk reinforcing rib hole. The inner disk shaft hole is located at the center of the rotating inner disk and matches the diameter of the middle part of the rotating shaft. The inner disk reinforcing rib holes are spaced apart along the outer circumference of the inner disk shaft hole and are connected to the inner disk shaft hole. The rotating outer disk is installed at the smaller diameter of the rotating shaft. The rotating outer disk is provided with an outer disk shaft hole, an outer disk reinforcing rib hole, and an insertion reinforcing rib hole. The outer disk shaft hole is located at the center of the rotating outer disk and matches the diameter of the end of the rotating shaft. The outer disk reinforcing rib hole and the insertion reinforcing rib hole are spaced apart along the outer circumference of the outer disk shaft hole. The outer disk reinforcing rib hole is not connected to the outer disk shaft hole, and the insertion reinforcing rib hole is connected to the outer disk shaft hole. The abutting reinforcing rib passes through the inner and outer disk reinforcing rib holes, and serves to connect and fix the rotating inner and outer disks. The abutting reinforcing rib has a first mounting groove and a second mounting groove; the first mounting groove is used to mount the rotating inner disk, and the second mounting groove is used to mount the rotating outer disk. The insert reinforcing rib passes through the inner disk reinforcing rib hole and the insert reinforcing rib hole, and is inserted into the keyway of the rotating shaft to connect and fix the inner rotating disk and the outer rotating disk. The insert reinforcing rib includes a mounting part, a locking part, and an inserting part. The mounting part is provided with a third mounting groove and a fourth mounting groove. The third mounting groove is used to install the inner rotating disk, and the fourth mounting groove is used to install the outer rotating disk. The inserting part is inserted into the keyway, and the locking part is inserted between the mounting part and the inserting part, thus fixing the insert reinforcing rib to the inner disk reinforcing rib hole and the insert reinforcing rib hole.
2. The rotating mechanism with a mortise and tenon structure according to claim 1, characterized in that, The ends of the abutting reinforcing rib and the inserting reinforcing rib are further fixed to the rotating outer disk by annular locking parts, or the ends of the abutting reinforcing rib and the inserting reinforcing rib are further fixed to the rotating outer disk by welding or glue.
3. The rotating mechanism with a mortise and tenon structure according to claim 1, characterized in that, There are two inner rotating discs and two outer rotating discs. The rotating shaft has a larger diameter in the middle and smaller diameters at both ends. The two inner rotating discs are installed at intervals in the middle of the rotating shaft, and the two outer rotating discs are installed at the smaller diameter ends of the rotating shaft.
4. The rotating mechanism with a mortise and tenon structure according to claim 1, characterized in that, There are 3 abutment reinforcing ribs and 1 insertion reinforcing rib.
5. The rotating mechanism with a mortise and tenon structure according to claim 1, characterized in that, There are two abutting reinforcing ribs and two inserting reinforcing ribs, and the abutting reinforcing ribs and inserting reinforcing ribs are arranged at intervals.
6. The rotating mechanism with a mortise and tenon structure according to claim 1, characterized in that, Both the first mounting groove and the second mounting groove are U-shaped with open outer ends, that is, the end of the reinforcing rib extends to the outer side of the rotating outer disk. The outer side of the rotating outer disk is provided with an annular locking member, and the inner side of the annular locking member is provided with a locking groove corresponding to the position of the reinforcing rib.
7. The rotating mechanism with a mortise and tenon structure according to claim 6, characterized in that, The annular locking component is composed of at least two sector-shaped components joined together, and the sector-shaped components have the locking groove on their inner side.
8. The rotating mechanism with a mortise and tenon structure according to claim 1, characterized in that, The first mounting groove is U-shaped with an open outer end, and the second mounting groove is L-shaped. That is, the ends of the abutting reinforcing rib and the inserting reinforcing rib are inserted into the rotating outer disk, and the ends of the abutting reinforcing rib and the inserting reinforcing rib are fixed to the rotating outer disk by spot welding.
9. A rotating mechanism with a mortise and tenon structure according to claim 1, characterized in that, The keyway extends from the middle of the larger diameter of the rotating shaft to the smaller diameter of the rotating shaft.
10. A rotating mechanism with a mortise and tenon structure according to claim 1, characterized in that, There are two keyways, which are spaced apart on both sides of the rotating shaft and extend from the larger diameter of the rotating shaft to the smaller diameter of the rotating shaft; there are also two corresponding insertion parts for the insertion reinforcing rib.