A sealed frame suitable for a reducer and a sealing process thereof

Abstract

The present invention discloses a sealing frame suitable for a reducer and a sealing process thereof, comprising a fixed base and a bracket, wherein a bracket is arranged at the middle part of the upper end of the fixed base, and the bracket is fixedly connected to the fixed base by welding, an annular seat is arranged on the bracket and located above the fixed base, a load-bearing seat is arranged on the annular seat and located inside the bracket, a first connecting seat is arranged on the load-bearing seat, the first connecting seat is fixedly connected to the load-bearing seat by welding, a second connecting seat is arranged at the upper end of the first connecting seat, the second connecting seat is connected to the first connecting seat by screw connection, and a connecting ring is fixedly connected to the bracket by welding, a sealing ring is arranged at the upper end of the connecting ring, and a motor is arranged at the upper end of the sealing ring. Such a structural arrangement can effectively solve the problems of insufficient firmness of fixation and poor sealing effect caused by a single sealing structure in the original device.

Description

Technical Field

[0001] The invention belongs to the technical field related to the sealing structure of a reducer frame, and in particular relates to a sealing frame suitable for a reducer and a sealing process thereof. Background Art

[0002] The reducer plays the role of matching speed and transmitting torque between the prime mover and the working machine or actuator. It is widely used in modern machinery. Reducers can be divided into two categories according to their uses: general reducers and special reducers. The design, manufacturing and use characteristics of the two are different. In most industries, reducer frames use ordinary oil seals or mechanical seals.

[0003] The existing technology has the following problems: 1. In the existing setting, the frame is not fixed firmly enough and is easily unstable due to vibration during work; 2. In the existing setting, the sealing structure is single and the sealing effect is not good. Summary of the invention

[0004] The object of the present invention is to provide a sealing frame suitable for a reducer and a sealing process thereof, so as to solve the problems of loose fixing and poor sealing effect proposed in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sealed frame suitable for a reducer, comprising a fixed base and a bracket, a bracket is arranged at the middle part of the upper end of the fixed base, and the bracket is fixedly connected to the fixed base by welding, an annular seat is arranged on the bracket and above the fixed base, a load-bearing seat is arranged on the annular seat and inside the bracket, a first connecting seat is arranged on the load-bearing seat, the first connecting seat is fixedly connected to the load-bearing seat by welding, a second connecting seat is arranged at the upper end of the first connecting seat, the second connecting seat is connected to the first connecting seat by screw connection, a connecting ring is arranged above the second connecting seat and at the upper end of the bracket, and the connecting ring is fixedly connected to the bracket by welding, a sealing ring is arranged at the upper end of the connecting ring, and a motor is arranged at the upper end of the sealing ring.

[0006] Preferably, the first connecting seat includes a welding seat, a ring, a hole, a clamping column, a clamping hole and a clamping ring. A ring is provided at the upper end of the welding seat, and the ring is fixedly connected to the welding seat by welding. A hole is provided in the middle of the ring, a clamping column is provided in the hole, a clamping ring is provided at the upper end of the clamping column, and a clamping hole is provided in the middle of the clamping ring.

[0007] Preferably, the second connecting seat includes a positioning seat, a screw hole, a positioning ring, a blocking hole, a fixing column, a fixing ring and a fixing hole. The positioning seat is provided with a screw hole, and there are several screw holes. The screw hole passes through the positioning seat, and a threaded plating structure is provided on the inner wall of the screw hole. A positioning ring is provided in the middle of the positioning seat, and the positioning ring is fixedly connected to the positioning seat by welding. A blocking hole is provided in the middle of the positioning ring, and a fixing column is provided in the blocking hole. A fixing ring is provided at the upper end of the fixing column, and a fixing hole is provided in the middle of the fixing ring, and the fixing hole passes through the fixing column.

[0008] Preferably, the bracket is a cylindrical structure made of stainless steel, the bracket is narrow at the top and wide at the bottom, and the inclination angle of the bracket relative to the fixed base is fifteen degrees.

[0009] Preferably, the lower end of the welding seat is fixedly connected to the middle part of the load-bearing seat by welding, and the load-bearing seat is fixedly connected to the annular seat by welding.

[0010] Preferably, the diameter of the clamping column is consistent with the diameter of the sleeve hole, the height of the clamping column is slightly smaller than the height of the sleeve ring, and the clamping hole above the clamping column penetrates the clamping column and is connected to the sleeve hole.

[0011] Preferably, a plurality of threaded hole structures are provided on the upper surface of the clamping ring, the diameter of the clamping ring is larger than the diameter of the clamping column, and the clamping column is fixedly connected to the clamping ring by welding.

[0012] Preferably, the size of the positioning seat is consistent with the size of the clamping ring, and the surface of the positioning seat is smoothed.

[0013] Preferably, the connecting ring comprises a flange, a connecting port, a connecting hole and a slot, a connecting port is provided in the middle of the flange, a connecting hole is provided in the middle of the connecting port, and a slot is provided between the connecting port and the inner wall of the flange.

[0014] Preferably, the sealing ring includes an outer shell, a groove and a docking port, a groove is provided in the middle of the outer shell, a docking port is provided in the middle of the groove, the height of the docking port is consistent with the height of the outer shell, the outer shell is a circular metal structure, and the diameter of the outer shell is consistent with the diameter of the slot, and the spacing from the slot to the connecting port is consistent with the thickness of the outer shell.

[0015] Compared with the prior art, the present invention provides a sealing frame suitable for a reducer and a sealing process thereof, which has the following beneficial effects:

[0016] The present invention is based on the original setting. The positioning seat in the second connecting seat is fixedly connected with the clamping ring through the screw hole, and then the clamping column at the lower end of the clamping ring is sleeved in the sleeve hole in the middle of the sleeve ring. The sleeve ring is fixed by a welding seat welded on the load-bearing seat. Then, the positioning ring and the sleeve ring located in the middle of the positioning seat are aligned. Then, the fixing column in the blocking hole is moved up and down in the blocking hole so that the lower end of the fixing column is aligned and sleeved with the clamping hole. Then, the rotating shaft in the reducer equipment passes through the sealing ring and the fixing hole in the middle of the fixing ring in sequence, so that the rotating shaft in the reducer is connected to the first connecting seat through the fixing column and passes through the first connecting seat. Since the bracket is narrow at the top and wide at the bottom between the connecting ring at the upper end of the bracket and the base of the kung fu at the lower end of the bracket in the bracket, the upper end part of the bracket can occupy less space when being sleeved with the rotating shaft of the reducer. The rotating shaft passes through the second connecting seat and the first connecting seat in sequence, and passes through the end of the motor. When the rotating shaft passes through the sealing ring and the connecting ring and is connected to the equipment inside the bracket, the rotating shaft at the end of the motor is sealed and protected by the sealing ring, and then the sealing ring is connected in the connecting ring by clamping, which can not only play a fixing role but also make the sealing effect better. During the connection, the docking interface in the sealing ring is sleeved in the connecting hole in the connecting port, and then the outer side of the docking interface and the outer shell are clamped in the groove between the flange and the connecting port. Through such a structural setting, when the rotating shaft at the end of the motor is working, it is first sealed by the sealing ring to prevent the lubricating oil on the rotating shaft at the end of the motor from leaking, and then it is firmly fixed by the connecting ring, so that the motor is more stable when working. Such a structural setting can effectively solve the problem that in the original device, when the reducer rotating shaft is connected, the sealing structure layer is single, the sealing effect is not good, and the sealing structure is not firmly fixed due to the influence of vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 A schematic diagram of the overall structure of a sealing frame suitable for a reducer and its sealing process proposed by the present invention;

[0019] Figure 2 A schematic diagram of the internal structure of a sealing frame and a sealing process support suitable for a reducer proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of a sealing frame suitable for a reducer and a second connecting seat of the sealing process thereof proposed by the present invention;

[0021] Figure 4 This is a structural schematic diagram of a sealing frame suitable for a reducer and its sealing process part proposed by the present invention;

[0022] Figure 5 This is a schematic diagram of the structure of a sealing frame suitable for a reducer and a first connecting seat of the sealing process thereof proposed by the present invention;

[0023] Figure 6 A schematic diagram of a sealing frame and a sealing process connecting ring structure suitable for a reducer proposed by the present invention;

[0024] Figure 7 This is a schematic diagram of the bottom surface end structure of a sealing frame and a sealing process of a reducer proposed by the present invention;

[0025] Figure 8 This is a schematic diagram of the upper end structure of a sealing frame and a sealing process sealing ring suitable for a reducer proposed by the present invention;

[0026] In the figure: 1. fixed base; 2. load-bearing seat; 3. annular seat; 4. first connecting seat; 5. second connecting seat; 6. bracket; 7. connecting ring; 8. sealing ring; 9. motor; 41. welding seat; 42. collar; 43. sleeve hole; 44. clamping column; 45. clamping hole; 46. clamping ring; 51. positioning seat; 52. screw hole; 53. positioning ring; 54. blocking hole; 55. fixing column; 56. fixing ring; 57. fixing hole; 71. flange; 72. connecting port; 73. connecting hole; 74. slot; 81. housing; 82. groove; 83. docking port. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1

[0029] See also Figure 1The present invention provides a technical solution: a sealed frame suitable for a reducer and a sealing process thereof, comprising a fixed base 1 and a bracket 6, wherein the bracket 6 is arranged at the middle part of the upper end of the fixed base 1, and the bracket 6 is fixedly connected to the fixed base 1 by welding, an annular seat 3 is arranged on the bracket 6 and located above the fixed base 1, a load-bearing seat 2 is arranged on the annular seat 3 and located inside the bracket 6, a first connecting seat 4 is arranged on the load-bearing seat 2, the first connecting seat 4 is fixedly connected to the load-bearing seat 2 by welding, a second connecting seat 5 is arranged at the upper end of the first connecting seat 4, the second connecting seat 5 is connected to the first connecting seat 4 by screw connection, a connecting ring 7 is arranged above the second connecting seat 5 and located at the upper end of the bracket 6, and the connecting ring 7 is fixedly connected to the bracket 6 by welding, a sealing ring 8 is arranged at the upper end of the connecting ring 7, a motor 9 is arranged at the upper end of the sealing ring 8, the bracket 6 is a cylindrical structure made of stainless steel, the bracket 6 is a narrow-upper-wide-lower structure, and the inclination angle of the bracket 6 relative to the fixed base 1 is fifteen degrees.

[0030] Embodiment 2

[0031] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 The present invention provides a technical solution: a sealing frame suitable for a reducer and a sealing process thereof, wherein the first connecting seat 4 comprises a welding seat 41, a sleeve ring 42, a sleeve hole 43, a clamping column 44, a clamping hole 45 and a clamping ring 46, the upper end of the welding seat 41 is provided with a sleeve ring 42, the sleeve ring 42 is fixedly connected to the welding seat 41 by welding, the middle part of the sleeve ring 42 is provided with a sleeve hole 43, a clamping column 44 is provided in the sleeve hole 43, the upper end of the clamping column 44 is provided with a clamping ring 46, the middle part of the clamping ring 46 is provided with a clamping hole 45, the lower end of the welding seat 41 is fixedly connected to the middle part of the bearing seat 2 by welding, the bearing seat 2 is fixedly connected to the annular seat 3 by welding, the diameter of the clamping column 44 is consistent with the diameter of the sleeve hole 43, the clamping column The height of 44 is slightly smaller than the height of the collar 42. The clamping hole 45 above the clamping column 44 passes through the clamping column 44 and is connected with the sleeve hole 43. A plurality of threaded hole structures are arranged on the upper surface of the clamping ring 46. The diameter of the clamping ring 46 is larger than the diameter of the clamping column 44. The clamping column 44 is fixedly connected with the clamping ring 46 by welding, and is welded and fixed to the load-bearing seat 2 by welding the welding seat 41, so that the position of the welding seat 41 is fixed, and the collar 42 and the clamping column 44 located at the upper end of the welding seat 41 are installed separately, and the clamping column 44 is movably connected by being sleeved with the sleeve hole 42 in the collar 42, so that the collar 42 and the clamping column 44 are more convenient to install and disassemble, and the fixing firmness of the first connecting seat 4 is not affected.

[0032] Embodiment 3

[0033] See also Figure 2 , Figure 3 The present invention provides a technical solution: a sealing frame suitable for a reducer and a sealing process thereof, wherein the second connecting seat 5 comprises a positioning seat 51, a screw hole 52, a positioning ring 53, a blocking hole 54, a fixing column 55, a fixing ring 56 and a fixing hole 57, the positioning seat 51 is provided with a screw hole 52, and a plurality of screw holes 52 are provided, the screw hole 52 passes through the positioning seat 51, and a threaded coating structure is provided on the inner side wall of the screw hole 52, a positioning ring 53 is provided in the middle of the positioning seat 51, the positioning ring 53 is fixedly connected to the positioning seat 51 by welding, a blocking hole 54 is provided in the middle of the positioning ring 53, a fixing column 55 is provided in the blocking hole 54, and a fixing column 55 is provided at the upper end of the fixing column 55 The fixed ring 56 is provided with a fixing hole 57 in the middle part, and the fixing hole 57 passes through the fixing column 55. The size of the positioning seat 51 is consistent with the size of the clamping ring 46, and the surface of the positioning seat 51 is smoothed. The positioning seat 51 and the clamping ring 46 are firmly connected together through a plurality of screw holes 52 provided on the positioning seat 51 and the screw holes provided on the clamping ring 46. The fixing column 55 at the lower end of the fixing ring 56 is sleeved with the clamping hole 45, so that the positioning seat 51 and the clamping ring 46 are more convenient to fix by screw connection. Such a structural setting can effectively solve the problems of insufficient fixation and poor sealing effect caused by the single sealing structure in the original device.

[0034] Embodiment 4

[0035] See also Figure 1 , Figure 2 , Figure 6 , Figure 7 , Figure 8The present invention provides a technical solution: a sealing frame suitable for a reducer and a sealing process thereof, wherein a connecting ring 7 comprises a flange 71, a connecting port 72, a connecting hole 73 and a card slot 74, a connecting port 72 is arranged in the middle of the flange 71, a connecting hole 73 is arranged in the middle of the connecting port 72, a card slot 74 is arranged between the connecting port 72 and the inner side wall of the flange 71, a sealing ring 8 comprises a shell 81, a groove 82 and a docking port 83, a groove 82 is arranged in the middle of the shell 81, a docking port 83 is arranged in the middle of the groove 82, a height of the docking port 83 is consistent with a height of the shell 81, the shell 81 is a circular metal structure, and the diameter of the shell 81 is consistent with the diameter of the card slot 74, the spacing from the card slot 74 to the connecting port 72 is consistent with the thickness of the shell 81, and the motor 9 is passed through the end When the rotating shaft passes through the sealing ring 8 and the connecting ring 7 and is connected to the equipment inside the bracket 6, the rotating shaft at the end of the motor 9 is sealed and protected by the sealing ring 8, and then the sealing ring 8 is connected in the connecting ring 7 by clamping, which can not only play a fixing role but also make the sealing effect better. During the connection, the docking interface 83 in the sealing ring 8 is sleeved in the connecting hole 73 in the connecting port 72, and then the outer side of the docking interface 83 and the outer shell 81 are clamped in the clamping groove 74 between the flange 71 and the connecting port 72. Through such a structural setting, when the rotating shaft at the end of the motor 9 is working, it is first sealed by the sealing ring 8 to prevent the lubricating oil on the rotating shaft at the end of the motor 9 from leaking, and then it is firmly fixed by the connecting ring 7, so that the motor 9 is more stable during operation.

[0036] The working principle and use process of the present invention are as follows: After the present invention is installed, the positioning seat 51 in the second connecting seat 5 is fixedly connected with the clamping ring 46 through the screw hole 52, and then the clamping column 44 at the lower end of the clamping ring 46 is sleeved in the sleeve hole 43 in the middle of the sleeve ring 42, and the sleeve ring 42 is fixed by the welding seat 41 welded on the load-bearing seat 2, and then the positioning ring 53 and the sleeve ring 42 located in the middle of the positioning seat 51 are aligned, and then the fixing column 55 in the blocking hole 54 is moved up and down in the blocking hole 54, so that the lower end of the fixing column 55 is aligned with the clamping column 44. The holes 45 are aligned and sleeved, and then the rotating shaft in the reducer equipment passes through the sealing ring 8 and the fixing hole 57 located in the middle of the fixing ring 56 in sequence, so that the rotating shaft in the reducer is connected to the first connecting seat 4 through the fixing column 55 and passes through the first connecting seat 4. Since the bracket 6 is located between the connecting ring 7 at the upper end of the bracket 6 and the base 1 at the lower end of the bracket 6, the bracket 6 has a narrow upper and wide lower structure, so the upper end of the bracket 6 can occupy less space when it is sleeved with the reducer rotating shaft, and the rotating shaft passes through the second connecting seat in sequence. The seat 5 and the first connecting seat 4, when the rotating shaft at the end of the motor 9 passes through the sealing ring 8 and the connecting ring 7 and is then connected to the equipment inside the bracket 6, the rotating shaft at the end of the motor 9 is sealed and protected by the sealing ring 8, and then the sealing ring 8 is connected in the connecting ring 7 by clamping, which can not only play a fixing role but also make the sealing effect better. During the connection, the docking interface 83 in the sealing ring 8 is sleeved in the connecting hole 73 in the connecting port 72, and then the outer side of the docking interface 83 and the outer shell 81 are clamped in the clamping groove 74 between the flange 71 and the connecting port 72. Through such a structural setting, the rotating shaft at the end of the motor 9 is first sealed by the sealing ring 8 when working, so as to prevent the lubricating oil on the rotating shaft at the end of the motor 9 from leaking, and then it is firmly fixed by the connecting ring 7, so that the motor 9 is more stable when working. Such a structural setting can effectively solve the problem that in the original device, when the reducer rotating shaft is connected, the sealing structure layer is single, the sealing effect is not good, and the sealing structure is not firmly fixed due to the influence of vibration.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealed frame suitable for a reducer, comprising a fixed base (1) and a bracket (6), characterized in that: A bracket (6) is provided at the middle of the upper end of the fixed base (1), and the bracket (6) is fixedly connected to the fixed base (1) by welding; an annular seat (3) is provided on the bracket (6) and located above the fixed base (1); a load-bearing seat (2) is provided on the annular seat (3) and located inside the bracket (6); a first connecting seat (4) is provided on the load-bearing seat (2), and the first connecting seat (4) is fixedly connected to the load-bearing seat (2) by welding; a second connecting seat (5) is provided at the upper end of the first connecting seat (4), and the second connecting seat (5) is connected by screws. The first connecting seat (4) is connected to the first connecting seat (4) in a connecting manner; a connecting ring (7) is provided above the second connecting seat (5) and at the upper end of the bracket (6); the connecting ring (7) is fixedly connected to the bracket (6) by welding; a sealing ring (8) is provided at the upper end of the connecting ring (7); a motor (9) is provided at the upper end of the sealing ring (8); the first connecting seat (4) comprises a welding seat (41), a sleeve ring (42), a sleeve hole (43), a clamping column (44), a clamping hole (45) and a clamping ring (46); a sleeve ring (42) is provided at the upper end of the welding seat (41); the sleeve ring (42) The second connection seat (5) is fixedly connected with the welding seat (41) by welding, the middle part of the sleeve ring (42) is provided with a sleeve hole (43), a clamping column (44) is provided in the sleeve hole (43), the upper end of the clamping column (44) is provided with a clamping ring (46), and the middle part of the clamping ring (46) is provided with a clamping hole (45); the second connection seat (5) comprises a positioning seat (51), a screw hole (52), a positioning ring (53), a blocking hole (54), a fixing column (55), a fixing ring (56) and a fixing hole (57), the positioning seat (51) is provided with a screw hole (52), and the screw hole (52) is provided with a plurality of The screw hole (52) passes through the positioning seat (51), and a threaded coating structure is provided on the inner wall of the screw hole (52). A positioning ring (53) is provided in the middle of the positioning seat (51), and the positioning ring (53) is fixedly connected to the positioning seat (51) by welding. A blocking hole (54) is provided in the middle of the positioning ring (53), and a fixing column (55) is provided in the blocking hole (54). A fixing ring (56) is provided at the upper end of the fixing column (55), and a fixing hole (57) is provided in the middle of the fixing ring (56), and the fixing hole (57) passes through the fixing column (55).

2. A sealed frame suitable for a reducer according to claim 1, characterized in that: The bracket (6) is a cylindrical structure made of stainless steel. The bracket (6) is narrow at the top and wide at the bottom, and the inclination angle of the bracket (6) relative to the fixed base (1) is fifteen degrees.

3. A sealed frame suitable for a reducer according to claim 1, characterized in that: The lower end of the welding seat (41) is fixedly connected to the middle part of the load-bearing seat (2) by welding, and the load-bearing seat (2) is fixedly connected to the annular seat (3) by welding.

4. A sealed frame suitable for a reducer according to claim 1, characterized in that: The diameter of the clamping column (44) is consistent with the diameter of the sleeve hole (43), the height of the clamping column (44) is slightly smaller than the height of the sleeve ring (42), and the clamping hole (45) above the clamping column (44) penetrates the clamping column (44) and is connected with the sleeve hole (43).

5. A sealed frame suitable for a reducer according to claim 1, characterized in that: A plurality of threaded hole structures are arranged on the upper surface of the clamping ring (46); the diameter of the clamping ring (46) is larger than the diameter of the clamping column (44); and the clamping column (44) is fixedly connected to the clamping ring (46) by welding.

6. A sealed frame suitable for a reducer according to claim 1, characterized in that: The size of the positioning seat (51) is consistent with the size of the clamping ring (46), and the surface of the positioning seat (51) is smoothed.

7. A sealed frame suitable for a reducer according to claim 1, characterized in that: The connecting ring (7) comprises a flange (71), a connecting port (72), a connecting hole (73) and a slot (74); the connecting port (72) is arranged in the middle of the flange (71); the connecting hole (73) is arranged in the middle of the connecting port (72); a slot (74) is arranged between the connecting port (72) and the inner side wall of the flange (71); the sealing ring (8) comprises a shell (81), a groove (82) and a docking port (83); the groove (82) is arranged in the middle of the shell (81); the docking port (83) is arranged in the middle of the groove (82); the height of the docking port (83) is consistent with the height of the shell (81); the shell (81) is a circular metal structure; the diameter of the shell (81) is consistent with the diameter of the slot (74); the spacing from the slot (74) to the connecting port (72) is consistent with the thickness of the shell (81).

8. A sealing process suitable for a reducer, characterized in that: The sealing process is composed of the following process steps: Step 1: first, the positioning seat (51) in the second connecting seat (5) is fixedly connected to the clamping ring (46) through the screw hole (52), and then the clamping column (44) at the lower end of the clamping ring (46) is sleeved into the sleeve hole (43) in the middle part of the sleeve ring (42), and the sleeve ring (42) is fixed by welding the welding seat (41) on the load-bearing seat (2); Step 2: Align the positioning ring (53) and the sleeve ring (42) located in the middle of the positioning seat (51), and then move the fixing column (55) in the blocking hole (54) up and down in the blocking hole (54) so ​​that the lower end of the fixing column (55) is aligned and sleeved with the clamping hole (45), and then the rotating shaft in the reducer equipment passes through the sealing ring (8) and the fixing hole (57) located in the middle of the fixing ring (56) in sequence, so that the rotating shaft in the reducer is connected to the first connecting seat (4) through the fixing column (55) and passes through the first connecting seat (4). Since the bracket (6) is narrow at the top and wide at the bottom between the connecting ring (7) at the upper end of the bracket (6) and the base (1) at the lower end of the bracket (6), the upper end of the bracket (6) can occupy less space when sleeved with the reducer rotating shaft, and the rotating shaft passes through the second connecting seat (5) and the first connecting seat (4) in sequence; Step 3: When the rotating shaft at the end of the motor (9) passes through the sealing ring (8) and the connecting ring (7) and is then connected to the equipment inside the bracket (6), the rotating shaft at the end of the motor (9) is sealed and protected by the sealing ring (8), and then the sealing ring (8) is connected to the connecting ring (7) by clamping, which can not only play a fixing role but also make the sealing effect better. During the connection, the docking port (83) in the sealing ring (8) is sleeved in the connecting hole (73) in the connecting port (72); Step 4: Finally, the outer side of the docking port (83) and the shell (81) are clamped in the clamping groove (74) between the flange (71) and the connecting port (72). Through such a structural setting, when the rotating shaft at the end of the motor (9) is working, it first plays a sealing role through the sealing ring (8) to prevent the lubricating oil on the rotating shaft at the end of the motor (9) from leaking, and then it is firmly fixed by the connecting ring (7).

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