Refrigeration compressor crankshaft capable of preventing center-of-gravity shift and working method thereof

Abstract

The invention discloses a refrigeration compressor crankshaft capable of preventing center-of-gravity shift and a working method thereof, and belongs to the technical field of refrigeration compressor crankshafts. The refrigeration compressor crankshaft capable of preventing the gravity center from shifting comprises a connecting shaft, a first fixing disc and a second fixing disc are arranged at the two ends of the connecting shaft in a welded mode respectively, the first fixing disc and the second fixing disc are both circles of the same size, and the first fixing disc, the second fixing disc and the connecting shaft are a set of transmission assemblies in the refrigeration compressor crankshaft. And a plurality of groups of transmission assemblies are transversely and uniformly distributed on the refrigeration compressor crankshaft according to use requirements. According to the invention, the problem that the crankshaft and the crankshaft connecting position are easy to break due to center-of-gravity shift generated in the high-speed rotation process of the crankshaft of the existing refrigeration compressor is solved, and the first fixing disc and the second fixing disc which are the same in shape and size are overlapped; and center-of-gravity shift generated by the protruding connecting shaft is counteracted through the first fixing disc and the second fixing disc during overlapping.

Description

Technical Field

[0001] The invention relates to the technical field of refrigeration compressor crankshafts, in particular to a refrigeration compressor crankshaft for preventing center of gravity deviation and a working method thereof. Background Art

[0002] The crankshaft of the refrigeration compressor is a core component in the refrigeration system. It is responsible for converting the rotational motion of the motor into the reciprocating motion of the compressor piston to achieve the compression of the refrigerant. The crankshaft can effectively transmit power and convert the form of motion through its unique structural design. It is one of the key components for the refrigeration compressor to work normally and achieve the refrigeration effect.

[0003] A Chinese patent with publication number CN218467778U discloses a refrigeration compressor crankshaft, comprising a front end shaft, two balancing weights, two connecting rod necks, a crank arm and a rear end shaft. The refrigeration compressor crankshaft has grooves on the outer walls of the two connecting rod necks that are spirally extended around the axes of the respective connecting rod necks, and at least one oil outlet hole connected to the oil supply channel is provided at the bottom of each groove. In this way, after the lubricating oil flows out of the oil outlet hole, the lubricating oil enters the groove, and due to the centrifugal force generated by the rotation of the crankshaft, the lubricating oil will flow along the groove, so that the lubricating oil flows to various parts of the outer wall of the connecting rod neck.

[0004] When the crankshaft of the refrigeration compressor of the above-mentioned patent rotates and realizes transmission, the protruding curved parts on both sides of the center position of the crankshaft will affect the center of gravity during the rotation process to a certain extent, causing the center of gravity to shift during the high-speed rotation of the crankshaft, which may easily cause the connection positions at both ends of the crankshaft to bear greater pressure due to the center of gravity shift, affecting the service life of the crankshaft and easily causing the crankshaft and the crankshaft connection positions to break. Summary of the invention

[0005] The object of the present invention is to provide a refrigeration compressor crankshaft and a working method thereof that prevents center of gravity shift. The first fixed disk and the second fixed disk with the same shape and volume overlap, and at the same time, the first fixed disk and the second fixed disk offset the center of gravity shift caused by the protruding connecting shaft, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a refrigeration compressor crankshaft that prevents center of gravity shift, including a connecting shaft, wherein a first fixed disk and a second fixed disk are welded at both ends of the connecting shaft, the first fixed disk and the second fixed disk are both circles of the same size, the first fixed disk, the second fixed disk and the connecting shaft are a group of transmission components in the refrigeration compressor crankshaft, and the refrigeration compressor crankshaft has several groups of transmission components evenly distributed laterally according to usage requirements.

[0007] Preferably, several groups of the transmission components are connected end to end, and a first connecting block and a second connecting block are respectively provided on both sides of the transmission component, and a second connecting frame is provided on the outer wall of the second connecting block facing the second fixed disk, and a first connecting frame is provided at the center position of the other side of the first fixed disk, and brackets are also provided between the first connecting frame and the first fixed disk and between the second connecting frame and the second connecting block. Connection through the bracket can facilitate the rotation of the internal connecting ring, and the rotating connecting ring can realize the fixation of the threaded rod after it passes through.

[0008] Preferably, a first connecting column is welded at the center position of a circle on one side of the second fixed disk, a second connecting column is arranged on the first connecting block toward the outer wall of the first fixed disk, and a threaded rod is also welded on one side of the second connecting column and the first connecting column. After the threaded rod is connected through the corresponding first connecting column and the second connecting column, it moves toward the connecting hole to facilitate the connection between the end and the tail.

[0009] Preferably, the first connecting frame and the second connecting frame are internally provided with connecting holes evenly distributed around the central axis of the refrigeration compressor crankshaft, and the connecting holes passing through the first connecting frame and the second connecting frame on both sides thereof can provide different connecting angles to achieve different transmission requirements.

[0010] Preferably, the interior of the first connecting frame is connected to the external slot of the first connecting column, and a connecting ring that fits with each other is provided on one side of the outside of the threaded rod. The first connecting frame is clamped on the outside of the first connecting column to complete the end-to-end connection, which is convenient for the assembly of the crankshaft.

[0011] Preferably, a transmission ring is arranged around the outside of the first fixed plate and the second fixed plate, and balls are arranged around the transmission ring and the first fixed plate and the second fixed plate. The first fixed plate in a rotating state can be supported by fixing the transmission ring to prevent the center of gravity of the crankshaft from shifting as the crankshaft rotates continuously.

[0012] Preferably, an inner connecting plate welded and fixed to the two transmission rings is provided on one side of the connecting shaft, and after the bolts are subsequently passed through the outer connecting plate, the first fixed plate and the second fixed plate in a rotating state can be stably supported to avoid center of gravity shift.

[0013] Preferably, an activity cavity is provided on one side of the exterior of the bracket.

[0014] Preferably, a first connecting groove is arranged around the first connecting block, and a second connecting groove is arranged around the second connecting block. The two ends of the rear crankshaft are respectively clamped on the outside of the first connecting block and the second connecting block to complete the installation. The recessed first connecting block and the second connecting block can improve the stability of the crankshaft during rotation.

[0015] A method for operating a refrigeration compressor crankshaft to prevent center of gravity shifting comprises the following steps:

[0016] Step 1: Combine multiple connecting shafts in sequence horizontally according to the size and model of the refrigeration compressor, and pre-rotate the angles of the connecting shafts according to the position requirements of the connecting shafts;

[0017] Step 2: The second fixing plate of one of the connecting shafts moves toward the first fixing plate of the other connecting shaft, and the first connecting column corresponding to the second fixing plate is embedded in the first connecting frame corresponding to the first fixing plate;

[0018] Step 3: The first connecting column is inserted into the connecting hole inside the first connecting frame by means of a threaded rod, so that the connecting ring is rotated and wrapped around the outside of the threaded rod;

[0019] Step 4: The first connecting block is embedded in the first connecting frame at one end of the crankshaft through the second connecting column. The second connecting column is also embedded in the connecting hole through the threaded rod and then rotated on the outside of the threaded rod by the connecting ring. The second connecting block is installed on one end of the crankshaft. The second connecting block is embedded in the outside of the first connecting column at the other end of the crankshaft through the second connecting frame and is also embedded in the connecting hole through the threaded rod.

[0020] Step 5: The output of the refrigeration compressor is connected via the connecting shaft position;

[0021] Step 6: Adjustment of the direction of the transmission ring: The directions of the inner connecting piece and the outer connecting piece can be adjusted directly. The bolts penetrate the outer connecting piece and are embedded in the installation position to fix the transmission ring.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention can offset the center of gravity shift generated when the connecting shaft rotates by using the circular and protruding first and second fixed disks, so that after the first fixed disk, the connecting shaft and the second fixed disk rotate with the first and second fixed disks as the center of the circle, the center of gravity can be continuously maintained at the center position of the first and second fixed disks. On the other hand, the crankshaft of the refrigeration compressor is combined and connected by a plurality of laterally distributed connecting shafts, and the first and second fixed disks corresponding to two adjacent connecting shafts are fitted and combined, wherein the threaded rod is inserted into the connecting holes at different positions to realize the combination of connecting shafts at different angles. The first fixed disk, the second fixed disk, the first connecting column and the first connecting frame all rotate with the same center of the circle, and no center of gravity shift will occur.

[0024] 2. In the present invention, transmission rings are arranged around the outside of the first fixed plate and the second fixed plate at both ends of the connecting shaft, and balls are arranged around the transmission ring and the first fixed plate and the second fixed plate. During the installation of the crankshaft, the outer connecting plate can be fixed to the outer wall of one side of the crankshaft by passing through the outer connecting plate with bolts. The outer connecting plate connects the transmission rings on both sides of the connecting shaft through the inner connecting plate, so that the first fixed plate and the second fixed plate can rotate stably after being restricted by the transmission ring, thereby realizing efficient temperature transmission of the crankshaft. The restriction of the transmission ring can prevent the center of gravity from shifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0026] Figure 2 It is a cross-sectional view of the internal structure of the transmission ring of the present invention;

[0027] Figure 3 This is a front view of the external connecting piece of the present invention in a connected state;

[0028] Figure 4 For the present invention Figure 3 A partial enlarged view of the middle A area;

[0029] Figure 5 It is an exploded view of the connection structure between the first connection column and the first connection frame of the present invention;

[0030] Figure 6 This is an axonometric diagram of the external structure of the first connecting block of the present invention;

[0031] Figure 7 This is an axonometric view of the external structure of the second connecting block of the present invention.

[0032] In the figure: 1. first fixed plate; 2. second fixed plate; 3. first connecting frame; 4. connecting shaft; 5. transmission ring; 6. first connecting block; 7. first connecting groove; 8. second connecting block; 9. second connecting groove; 10. outer connecting plate; 11. first connecting column; 12. threaded rod; 13. bracket; 14. connecting hole; 15. ball; 16. inner connecting plate; 17. bolt; 18. connecting ring; 19. movable cavity; 20. second connecting column; 21. second connecting frame. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with specific embodiments.

[0034] like Figure 1As shown, the crankshaft of the refrigeration compressor for preventing the center of gravity from shifting in this embodiment includes a connecting shaft 4, and the output position connected to the crankshaft is connected to the external rotation of the connecting shaft 4. During the rotation connection process, after the connecting shaft 4 rotates with the first connecting block 6 as the center of the circle, the external rotation of the connecting shaft 4 can realize the conversion from rotational motion to lateral linear motion, and the lateral linear motion realizes the output requirement of the crankshaft, such as Figure 1 As shown, a first fixing plate 1 is disposed at one end of the connecting shaft 4, and a second fixing plate 2 is disposed at the other end of the connecting shaft 4, and the second fixing plate 2 and the first fixing plate 1 are both welded and fixed to one end of the connecting shaft 4;

[0035] The connecting shaft 4 rotates while driving the first fixed disk 1 and the second fixed disk 2 to rotate with itself as the center of the circle. The second fixed disk 2 and the first fixed disk 1 are both circles of the same shape. The circular areas of the first fixed disk 1 and the second fixed disk 2 are the same. During the rotation of the first fixed disk 1, the second fixed disk 2 and the connecting shaft 4, the shapes of the first fixed disk 1 and the second fixed disk 2 can offset the center of gravity offset generated during the rotation.

[0036] In this embodiment, the first fixed plate 1, the second fixed plate 2 and the connecting shaft 4 are a group of a part of the crankshaft, and the crankshaft has a plurality of groups of the first fixed plate 1, the second fixed plate 2 and the connecting shaft 4 uniformly distributed laterally according to the use requirements, such as Figure 1 and Figure 3 As shown, the adaptation of different transmission positions can be achieved by sequentially connecting a plurality of groups of first fixed disks 1, second fixed disks 2 and connecting shafts 4 end to end;

[0037] In this embodiment, a first connecting column 11 is disposed at the center of one side of the second fixing plate 2, and the first connecting column 11 is welded and fixed to one side of the center of the second fixing plate 2. Figure 2 and Figure 5 As shown, a first connecting frame 3 is provided at the center position of the other side of the first fixing plate 1, and a bracket 13 for connection is arranged around the first connecting frame 3 and the first fixing plate 1, and the two ends of the bracket 13 are respectively welded and fixed to the first connecting frame 3 and the first fixing plate 1, and the bracket 13 can be used to conveniently fix the first connecting frame 3 to the other side of the first fixing plate 1;

[0038] In this embodiment, the recessed position inside the first connecting frame 3 is connected to the external slot of the first connecting column 11. During the assembly process, the first connecting column 11 will be embedded in the first connecting frame 3 and realize the assembly of two adjacent connecting shafts 4. Figure 5 As shown, eight connection holes 14 are evenly distributed around the center of the first fixed plate 1 inside the first connection frame 3, and the connection holes 14 penetrate and extend to both sides of the first connection frame 3, and a threaded rod 12 is welded on one side of the first connection column 11;

[0039] When the first connecting column 11 is embedded in the first connecting frame 3, the threaded rod 12 is inserted into one of the connecting holes 14, and the connecting angle is adjusted by inserting into the connecting hole 14. Since the first fixed plate 1 and the second fixed plate 2 connected have the same shape and area, the transmission ring 5 can adjust the connecting angle at will to meet different requirements for connecting with the crankshaft.

[0040] In this embodiment, a recessed active cavity 19 is provided on one side of the outer portion of the bracket 13, through which the internal threaded rod 12 can be directly viewed. Figure 4 and Figure 5 As shown, the connecting ring 18 for fixing the threaded rod 12 can also be directly installed through the movable cavity 19, and the outer portion of the connecting ring 18 cooperates with the inner thread of the threaded rod 12;

[0041] The connecting ring 18 can be fixed to the outside of the threaded rod 12 by rotating the connecting ring 18 outside the threaded rod 12. As the connecting ring 18 continues to rotate, the connecting ring 18 can fit one side of the outer wall of the first connecting frame 3. After the first connecting column 11 fits the first connecting frame 3, the positions of the threaded rod 12 and the first connecting column 11 can be directly fixed.

[0042] In this embodiment, if Figure 3 As shown, the second connecting block 8 and the first connecting block 6 are respectively arranged on both sides of the crankshaft to which the first fixed disk 1, the second fixed disk 2 and the connecting shaft 4 are connected end to end, the first connecting block 6 is provided with a second connecting column 20 on the first connecting frame 3 facing the outer wall of the first fixed disk 1, and the second connecting block 8 is provided with a second connecting frame 21 on the first connecting column 11 on the outer wall of the second fixed disk 2, and the two sides are wrapped and combined by the second connecting block 8 and the first connecting block 6, so as to facilitate the erection and rotation of the crankshaft;

[0043] In this embodiment, the second connecting column 20 and the first connecting column 11 are also provided with a threaded rod 12, and the second connecting frame 21 and the first connecting frame 3 are also provided with a connecting hole 14. Figure 1 , Figure 6 and Figure 7 As shown, the protruding threaded rod 12 and the recessed connecting hole 14 can facilitate the first connecting block 6 and the second connecting block 8 to be connected to both sides of the combined crankshaft, so as to facilitate the installation of the crankshaft;

[0044] In this embodiment, a first concave connecting groove 7 is arranged around the inside of the first connecting block 6, and a second concave connecting groove 9 is arranged around the inside of the second connecting block 8. Figure 6 and Figure 7As shown, the first and second connecting grooves 7 and 9 can be connected to the rotating groove of the inner wall of the refrigeration compressor, and the first and second connecting grooves 7 and 9 can improve the stability of the crankshaft during rotation and avoid the center of gravity shift caused by the rotation.

[0045] In this embodiment, if Figure 7 As shown, a bracket 13 is disposed around the second connecting frame 21 and the second connecting block 8, and the second connecting frame 21 and the second connecting block 8 can be connected through the bracket 13;

[0046] In this embodiment, a transmission ring 5 is arranged around the outside of the first fixed plate 1 and the second fixed plate 2, and balls 15 are arranged between the two transmission rings 5 ​​and the outer walls of the first fixed plate 1 and the second fixed plate 2. The rotation of the balls 15 can make the transmission ring 5 rotate outside the first fixed plate 1 and the second fixed plate 2. Figure 1 , Figure 2 and Figure 3 As shown, an inner connecting plate 16 is provided on one side of the connecting shaft 4, and the inner connecting plate 16 is welded and fixed to the outer wall of the transmission ring 5, and an outer connecting plate 10 is welded on one end of the transmission ring 5. Bolts 17 penetrate the four corners of the outer connecting plate 10 and extend to the installation position. The penetration of the bolts 17 can realize the restriction and support of the first fixed plate 1 and the second fixed plate 2, so that the first fixed plate 1 and the second fixed plate 2 can drive the connecting shaft 4 to rotate while avoiding the deviation of the center of gravity.

[0047] A method for operating a refrigeration compressor crankshaft to prevent center of gravity shifting comprises the following steps:

[0048] Step 1: According to the size and model of the refrigeration compressor, multiple connecting shafts 4 are combined in sequence horizontally, and the angles of the connecting shafts 4 are pre-rotated according to the position requirements of the connecting shafts 4;

[0049] Step 2: The second fixing plate 2 of one of the connecting shafts 4 moves toward the first fixing plate 1 of the other connecting shaft 4. After the movement, the first connecting column 11 corresponding to the second fixing plate 2 is embedded in the first connecting frame 3 corresponding to the first fixing plate 1, so as to realize the combination between the two adjacent connecting shafts 4;

[0050] Step 3: While the first connecting column 11 is embedded in the first connecting frame 3, the first connecting column 11 is embedded in the connecting hole 14 in the first connecting frame 3 through the threaded rod 12. The assembler places the connecting ring 18 through the movable cavity 19 so that the connecting ring 18 is rotated and wrapped around the outside of the threaded rod 12. The connecting ring 18 rotates and fits the first connecting frame 3 to fix the combination between the first connecting column 11 and the first connecting frame 3.

[0051] Step 4, after multiple connecting shafts 4 are assembled transversely in sequence, a first connecting block 6 is installed on one end of the assembled crankshaft, and the first connecting block 6 is embedded in the first connecting frame 3 at one end of the crankshaft through the second connecting column 20. The second connecting column 20 is also embedded in the connecting hole 14 through the threaded rod 12 and then rotated outside the threaded rod 12 by the connecting ring 18, so as to rotate and fix the connection and assembly of the first connecting block 6. A second connecting block 8 is installed on one end of the assembled crankshaft, and the second connecting block 8 is embedded in the outside of the first connecting column 11 at the other end of the crankshaft through the second connecting frame 21, and is also embedded in the connecting hole 14 through the threaded rod 12 and then rotated outside the threaded rod 12 by the connecting ring 18, so as to fix the assembly of the second connecting block 8 after rotation;

[0052] Step 5: The output of the refrigeration compressor is connected at the position of the connecting shaft 4, and during the rotation process, the first connecting block 6, the first fixed disk 1, the second fixed disk 2 and the second connecting block 8 will keep the center of gravity relatively stable during the rotation;

[0053] Step six, regarding the installation position of the crankshaft, the direction of the transmission ring 5 is adjusted by rotating outside the first fixed plate 1 and the second fixed plate 2. The adjustment of the direction of the transmission ring 5 can directly adjust the direction of the inner connecting plate 16 and the outer connecting plate 10. The bolt 17 passes through the outer connecting plate 10 and is embedded in the installation position to fix the transmission ring 5. The fixation of the transmission ring 5 can limit the crankshaft during rotation and further avoid the center of gravity shift.

[0054] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0055] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A refrigeration compressor crankshaft for preventing center of gravity shift, comprising a connecting shaft (4), characterized in that: A first fixed disk (1) and a second fixed disk (2) are respectively welded at both ends of the connecting shaft (4); the first fixed disk (1) and the second fixed disk (2) are both circular in shape of the same size; the first fixed disk (1), the second fixed disk (2) and the connecting shaft (4) are a group of transmission components in a crankshaft of a refrigeration compressor; the crankshaft of the refrigeration compressor has a plurality of groups of transmission components evenly distributed laterally according to usage requirements.

2. The refrigeration compressor crankshaft for preventing center of gravity shift according to claim 1, characterized in that: A plurality of groups of the transmission components are connected end to end, and a first connection block (6) and a second connection block (8) are respectively provided on both sides of the transmission components. A second connection frame (21) is provided on the outer wall of the second connection block (8) facing the second fixed disk (2). A first connection frame (3) is provided at the center position of the other side of the first fixed disk (1). A bracket (13) is also provided between the first connection frame (3) and the first fixed disk (1) and between the second connection frame (21) and the second connection block (8).

3. The refrigeration compressor crankshaft for preventing center of gravity shift according to claim 2, characterized in that: A first connecting column (11) is welded at the center of one side of the second fixing plate (2), a second connecting column (20) is arranged on the first connecting block (6) toward the outer wall of the first fixing plate (1), and a threaded rod (12) is also welded on one side of the second connecting column (20) and the first connecting column (11).

4. The refrigeration compressor crankshaft for preventing center of gravity shift according to claim 2, characterized in that: The first connecting frame (3) and the second connecting frame (21) are both provided with connecting holes (14) evenly distributed around the central axis of the refrigeration compressor crankshaft and penetrating both sides of the first connecting frame (3) and the second connecting frame (21).

5. The refrigeration compressor crankshaft for preventing center of gravity shift according to claim 3, characterized in that: The interior of the first connecting frame (3) is connected to the external slot of the first connecting column (11), and a connecting ring (18) that is threadably matched with each other is provided on one side of the exterior of the threaded rod (12).

6. The refrigeration compressor crankshaft for preventing center of gravity shift according to claim 1, characterized in that: The first fixed plate (1) and the second fixed plate (2) are both surrounded by transmission rings (5), and balls (15) are both surrounded by the transmission rings (5) and the first fixed plate (1) and the second fixed plate (2).

7. The refrigeration compressor crankshaft for preventing center of gravity shift according to claim 6, characterized in that: An inner connecting plate (16) which is welded and fixed to the two transmission rings (5) is provided on one side of the connecting shaft (4).

8. The refrigeration compressor crankshaft for preventing center of gravity shift according to claim 2, characterized in that: An activity cavity (19) is provided on one side of the exterior of the support (13).

9. The refrigeration compressor crankshaft for preventing center of gravity shift according to claim 3, characterized in that: The first connection block (6) is provided with a first connection groove (7) around it, and the second connection block (8) is provided with a second connection groove (9) around it.

10. A method for operating a refrigeration compressor crankshaft that prevents center of gravity shift, which is implemented based on the refrigeration compressor crankshaft that prevents center of gravity shift according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: according to the size and model of the refrigeration compressor, multiple connecting shafts (4) are sequentially combined horizontally, and the angles of the connecting shafts (4) are pre-rotated according to the position requirements of the connecting shafts (4); Step 2: The second fixing plate (2) of one of the connecting shafts (4) moves toward the first fixing plate (1) of the other connecting shaft (4), and the first connecting column (11) corresponding to the second fixing plate (2) is embedded in the first connecting frame (3) corresponding to the first fixing plate (1); Step 3: The first connecting column (11) is embedded into the connecting hole (14) inside the first connecting frame (3) through the threaded rod (12), so that the connecting ring (18) is rotated and wrapped around the outside of the threaded rod (12); Step 4: The first connecting block (6) is embedded into the first connecting frame (3) at one end of the crankshaft through the second connecting column (20); the second connecting column (20) is also embedded into the connecting hole (14) through the threaded rod (12) and then rotated outside the threaded rod (12) by the connecting ring (18); the second connecting block (8) is installed at one end of the crankshaft; the second connecting block (8) is embedded into the outside of the first connecting column (11) at the other end of the crankshaft through the second connecting frame (21), and is also embedded into the connecting hole (14) through the threaded rod (12); Step 5: The output of the refrigeration compressor is connected via the connecting shaft (4); Step 6: Adjustment of the direction of the transmission ring (5) The directions of the inner connecting plate (16) and the outer connecting plate (10) can be directly adjusted. The bolts (17) penetrate the outer connecting plate (10) and are embedded in the installation position to fix the transmission ring (5).

Images